SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM N-14

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

[X] Pre-Effective Amendment No.  1  (File No.: 333-129013)

[ ] Post-Effective Amendment No. [ ]

(Check Appropriate Box or Boxes)

                             AXP Growth Series, Inc.
- -------------------------------------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

                                 (612) 330-9283
- -------------------------------------------------------------------------------
                        (Area Code and Telephone Number)

       901 Marquette Avenue South, Suite 2810, Minneapolis, MN 55402-3268
- -------------------------------------------------------------------------------
 (Address of Principal Executive Offices: Number, Street, City, State, Zip Code)

                  Leslie L. Ogg - 901 Marquette Avenue South,
- -------------------------------------------------------------------------------
                     (Name and Address of Agent For Service)

        Suite 2810,                     Minneapolis       MN          55402-3268
- -------------------------------------------------------------------------------
     (Number and Street)                 (City)         (State)       (Zip Code)

Approximate Date of Proposed Public Offering:  As soon as practicable  after the
effective date of the Registration Statement.

Title of Securities Being Registered:              Common Stock

No filing fee is due because of reliance on Section 24(f) of the Investment
Company Act of 1940.

This Registration Statement shall hereafter become effective in accordance with
Section 8(a) of the Securities Act of 1933.


                                RIVERSOURCE FUNDS
                   (formerly known as American Express Funds)

                           Principal Executive Office
                     901 Marquette Avenue South, Suite 2810
                           Minneapolis, MN 55402-3268

                   NOTICE OF A REGULAR MEETING OF SHAREHOLDERS

                            TO BE HELD FEB. 15, 2006

                         AXP(R) DIMENSIONS SERIES, INC.
                         RiverSource New Dimensions Fund
                       (formerly AXP New Dimensions Fund)

RiverSource New Dimensions Fund ("New Dimensions" or the "Selling Fund") will
hold a regular shareholders' meeting at 10:00 a.m. on Feb. 15, 2006, at the IDS
Center, 80 S. Eighth Street, Minneapolis, MN on the 50th floor. At the meeting,
shareholders will consider the following proposals:

- -  To approve an Agreement and Plan of Reorganization (the "Agreement") between
   the Selling Fund and RiverSource Large Cap Equity Fund ("Large Cap Equity" or
   the "Buying Fund"). Under this Agreement, the Selling Fund will transfer all
   of its assets attributable to Classes A, B, C, I and Y to the Buying Fund in
   exchange for corresponding Class A, B, C, I and Y shares of the Buying Fund.
   These shares will be distributed proportionately to you and the other
   shareholders of the Selling Fund. The Buying Fund will assume the Selling
   Fund's liabilities.

- -  To elect Board members.

- -  To amend the Articles of Incorporation.


- -  To approve an Investment Management Services Agreement ("IMS Agreement") with
   RiverSource Investments, LLC.


- -  Other business as may properly come before the meeting, or any adjournment of
   the meeting.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        1
<Page>


Please take some time to read the proxy statement. It discusses the proposals in
more detail. If you were a shareholder on Dec. 16, 2005, you may vote at the
meeting or any adjournment of the meeting. We hope you can attend the meeting.
For those of you who cannot attend, please vote by mail, telephone or internet.
Just follow the instructions on the enclosed proxy card. If you have questions,
please call your advisor or call client services toll free at (877) 256-6085. It
is important that you vote. The Board of Directors (the "Board") recommends that
you vote FOR each of the proposals. This proxy statement was first mailed to
shareholders on or about Dec. 16, 2005.


                               By order of the Board of Directors


                               Leslie L. Ogg, Secretary
                               Dec. 16, 2005

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        2
<Page>

                       COMBINED PROXY STATEMENT/PROSPECTUS

                               DATED DEC. 16, 2005

This document is a proxy statement for New Dimensions and a prospectus for Large
Cap Equity (each individually a "Fund" and collectively the "Funds"). It
contains the information you should know before voting on the proposal. Please
read it carefully and keep it for future reference. The address of each of the
Funds is 901 Marquette Avenue South, Suite 2810, Minneapolis, MN 55402-3268. The
phone number for each of the Funds is (612) 330-9283.

The following information describes the proposed reorganization of the Selling
Fund into the Buying Fund (the "Reorganization").

HOW THE REORGANIZATION WILL WORK

- -  The Selling Fund will transfer all of its assets to the Buying Fund. The
   Buying Fund will assume the Selling Fund's liabilities.


- -  The Buying Fund will issue shares of Classes A, B, C, I and Y to the Selling
   Fund in an amount equal to the value of the assets of Classes A, B, C, I and
   Y that it receives from the Selling Fund, less the liabilities it assumes.
   These shares will be distributed to the Selling Fund's shareholders in
   proportion to their holdings in the Selling Fund. You will not pay any sales
   charge in connection with this distribution of shares. If you already have a
   Buying Fund account, shares distributed in the Reorganization will be added
   to that account. As a result, when average cost is calculated for income tax
   purposes, the cost of the shares in the two accounts you owned will be
   combined.


FUND INVESTMENT OBJECTIVES

The investment objective for each of the Funds is as follows:

          SELLING FUND: The Fund seeks to provide shareholders with
                        long-term growth of capital.

          BUYING FUND:  The Fund seeks to provide shareholders with long-term
                        growth of capital.

Please note that the Fund is not a bank deposit, is not federally insured, is
not endorsed by any bank or government agency and is not guaranteed to achieve
its goal.

As with all mutual funds, the Securities and Exchange Commission (the "SEC") has
not approved or disapproved these securities or passed on the adequacy of this
prospectus. Any representation to the contrary is a criminal offense.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        3
<Page>

WHERE TO GET MORE INFORMATION

<Table>
                                           
THE BUYING FUND

Most recent prospectus, dated Oct. 3, 2005.   Accompanying, and incorporated by reference into, this proxy
                                              statement/prospectus.

Most recent annual report, for the period     Incorporated by reference into this proxy statement/prospectus. For
ended July 31, 2005.                          a copy at no charge, call toll-free (800) 862-7919 or write to the
                                              address at the bottom of this table.

THE SELLING FUND

Most recent prospectus, dated Oct. 17, 2005.  Incorporated by reference into this proxy statement/prospectus. For
                                              a copy at no charge, call toll-free (800) 862-7919 or write to the
                                              address at the bottom of this table.

Most recent annual report, for the period     Incorporated by reference into this proxy statement/prospectus. For
ended July 31, 2005.                          a copy at no charge, call toll-free (800) 862-7919 or write to the
                                              address at the bottom of this table.
THIS PROXY STATEMENT/PROSPECTUS

Statement of Additional Information dated     Incorporated by reference into this proxy statement/prospectus. For
the same date as this proxy                   a copy at no charge, call toll-free (877) 256-6085 or write to the
statement/prospectus. This document           address at the bottom of this table.
contains information about both the Selling
Fund and the Buying Fund.

To ask questions about this proxy             Call toll-free (877) 256-6085 or write to:
statement/prospectus.                         RiverSource Service Corporation,
                                              70100 Ameriprise Financial
                                              Center,Minneapolis, MN 55474.
</Table>

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        4
<Page>

Each of the Funds is subject to the information requirements of the Securities
Exchange Act of 1934 and the Investment Company Act of 1940 (the "1940 Act") and
files reports, proxy materials and other information with the SEC. These
reports, proxy materials and other information can be inspected and copied at
the Public Reference Room maintained by the SEC. Copies may be obtained, after
paying a duplicating fee, by electronic request at
http://www.publicinfo@sec.gov, or by writing to the Public Reference Section of
the SEC, Washington, D.C. 20549-0102. In addition, copies of these documents may
be viewed on-line or downloaded from the SEC's Web site at http://www.sec.gov.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        5
<Page>

TABLE OF CONTENTS

                                                                            PAGE

SECTION A -- FUND PROPOSALS

PROPOSAL 1. APPROVE OR REJECT THE AGREEMENT AND PLAN OF REORGANIZATION         7

   SUMMARY                                                                     7
      How the Reorganization Will Work                                         7

      Comparison of the Selling Fund and the Buying Fund                       8
      Risk Factors                                                            12

      Tax Consequences                                                        14

   FEES AND EXPENSES                                                          15

   THE REORGANIZATION                                                         18
      Terms of the Reorganization                                             18
      Conditions to Closing the Reorganization                                19
      Termination of the Agreement                                            19
      Tax Status of the Reorganization                                        19
      Reasons for the Proposed Reorganization and Board Deliberations         22

      Boards' Determinations                                                  24

      Recommendation and Vote Required                                        24


PROPOSAL 2. ELECT BOARD MEMBERS                                               25

PROPOSAL 3. APPROVE OR REJECT AN AMENDMENT TO THE ARTICLES OF INCORPORATION   32

PROPOSAL 4. APPROVE OR REJECT AN INVESTMENT MANAGEMENT SERVICES AGREEMENT
WITH RIVERSOURCE INVESTMENTS, LLC                                             34

SECTION B -- PROXY VOTING AND SHAREHOLDER MEETING INFORMATION                 42

SECTION C -- CAPITALIZATION, OWNERSHIP OF FUND SHARES AND OTHER FUND
INFORMATION                                                                   45


EXHIBITS
A. Form of Agreement and Plan of Reorganization                              A.1
B. Matters Subject to Approval at Regular Meeting of Buying Fund             B.1
C. Minnesota Business Corporation Act Sections 302A.471 and 302A.473         C.1
D. Most Recent Buying Fund Prospectus                                        D.1
E. Board Effectiveness Committee Charter                                     E.1
F. Joint Audit Committee Charter                                             F.1

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        6
<Page>

SECTION A -- FUND PROPOSALS

PROPOSAL 1. APPROVE OR REJECT THE AGREEMENT AND PLAN OF REORGANIZATION

SUMMARY


This proxy statement/prospectus is being used by the Selling Fund to solicit
proxies to vote at a meeting of shareholders. Shareholders will consider a
proposal to approve the Agreement providing for the Reorganization of the
Selling Fund into the Buying Fund. A form of the Agreement is included in
Exhibit A.


The following is a summary. More complete information appears later in this
proxy statement/prospectus. You should read the entire proxy
statement/prospectus and the exhibits because they contain details that are not
in the summary.

HOW THE REORGANIZATION WILL WORK

- -  The Selling Fund will transfer all of its assets to the Buying Fund. The
   Buying Fund will assume the Selling Fund's stated liabilities.

- -  The Buying Fund will issue shares of Classes A, B, C, I and Y to the Selling
   Fund in an amount equal to the value of the assets of Classes A, B, C, I and
   Y that it receives from the Selling Fund, less the liabilities it assumes.
   These shares will be distributed to the Selling Fund's shareholders in
   proportion to their holdings in the Selling Fund.


- -  As part of the Reorganization, systematic transactions (such as bank
   authorizations and systematic payouts) currently set up for your Selling Fund
   account will be transferred to your new Buying Fund account. If you do not
   want your systematic transactions to continue, please contact your financial
   advisor to make changes.


- -  Neither the Selling Fund nor the shareholders of the Selling Fund will pay
   any sales charge in connection with the Reorganization.

- -  After the Reorganization is completed, current Selling Fund shareholders will
   be shareholders of the Buying Fund. The Selling Fund will be terminated.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        7
<Page>

COMPARISON OF THE SELLING FUND AND THE BUYING FUND

Both the Selling Fund and the Buying Fund:

- -  Are structured as a series of capital stock of an open-end management
   investment company organized as a Minnesota corporation.

- -  Have RiverSource Investments, LLC (the "investment manager" or "RiverSource
   Investments") as an investment adviser.

- -  Have the same policies for buying and selling shares and the same exchange
   rights.

- -  Have the same distribution policies.

- -  Have different classes of shares: Classes A, B, C, I and Y.

COMPARISON OF INVESTMENT OBJECTIVES

The investment objectives for the Funds are as follows:

         SELLING FUND: The Fund seeks to provide shareholders with long-term
                       growth of capital.

         BUYING FUND:  The Fund seeks to provide shareholders with long-term
                       growth of capital.

COMPARISON OF INVESTMENT STRATEGIES


Prior to October 2005, the Selling Fund was managed as a large-cap growth fund
and was permitted to invest up to 30% of its total assets in foreign
investments. The Buying Fund has, and, since October 2005, the Selling Fund has
had, a policy to invest at least 80% of its net assets in the common stocks of
equity securities of large-cap companies with market capitalization greater than
$5 billion at the time of purchase. Additionally, the Buying Fund is, and, since
October 2005, the Selling Fund has been, managed as a core fund, with portions
of the Fund's portfolio uniquely dedicated to "growth," "value," and "core"
investing, with no more than 20% of total assets permitted to invest in foreign
investments.

Detailed strategies for the Selling Fund and the Buying Fund are set forth
below:

NEW DIMENSIONS (SELLING FUND):


UNTIL OCTOBER 2005, THE FUND WAS MANAGED AS FOLLOWS:

The Fund primarily invests in common stocks showing potential for significant
growth. These companies often operate in areas where dynamic economic and
technological changes are occurring. The Fund may invest up to 30% of its total
assets in foreign investments.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        8
<Page>

In pursuit of the Fund's goal, the investment manager chooses investments by:

- -  Identifying companies that the investment manager believes have above-average
   long-term growth potential based on:

- -  Effective management,

- -  Financial strength, and

- -  Competitive market position; as well as

- -  Considering opportunities and risks by reviewing interest rate and economic
   forecasts both domestically and abroad.

In evaluating whether to sell a security, the investment manager considers,
among other factors, whether:

- -  The security is overvalued relative to alternative investments.

- -  The company has met the investment manager's earnings and/or growth
   expectations.

- -  Political, economic, or other events could affect the company's performance.

- -  The investment manager wishes to minimize potential losses.

- -  The investment manager identifies a more attractive opportunity.


SINCE OCTOBER 2005, THE FUND HAS BEEN MANAGED IN THE SAME WAY AS LARGE CAP
EQUITY BELOW:

LARGE CAP EQUITY (BUYING FUND):


Under normal market conditions, at least 80% of the Fund's net assets are
invested in equity securities of companies with a market capitalization greater
than $5 billion at the time of purchase. The Fund may invest in income-producing
equity securities, such as dividend-paying stocks, convertible securities and
preferred stocks. The Fund will provide shareholders with at least 60 days'
notice of any change in the 80% policy.

In pursuit of the Fund's objective, the investment manager (RiverSource
Investments, LLC) will hold both growth and value companies and at times may
favor one more than the other based on available opportunities. When optimizing
for growth, the investment manager invests in companies it believes to have
above-average long-term growth potential, or technological superiority, and it
selects investments based, among other factors, on:

- -  Effective management.

- -  Financial strength.

- -  Competitive market or product position.

- -  Technological advantage relative to other companies.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                        9
<Page>

When optimizing for value, the investment manager invests in companies that
appear to be undervalued by various measures or that may be temporarily out of
favor, but have good prospects for capital appreciation, and it selects
investments based, among other factors, on:

- -  Identifying a variety of large, well-established companies whose underlying
   fundamentals are stable, or are anticipated to become stable, or whose
   fundamentals are improving.

- -  Identifying stocks that are undervalued:


- -  because they have one or more ratios, such as price-to-earnings or
   price-to-cash flow, that are low relative to the general market, or have a
   yield that exceeds the market,


- -  because one or more of their valuation ratios are low relative to historical
   levels for the stock,

- -  because one or more of their valuation ratios or other financial measures
   make that stock attractive relative to its peers, or

- -  because they are undervalued relative to their intrinsic value, as identified
   by the investment manager.

In evaluating whether to sell a security, the investment manager considers
factors including, among others whether:

- -  The security is overvalued relative to other potential investments.

- -  The security has reached the investment manager's price objective.

- -  The company has met the investment manager's earnings and/or growth
   expectations.

- -  Potential losses, due to factors such as a market down-turn, can be
   minimized.

- -  A more attractive opportunity has been identified.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       10
<Page>

BOTH FUNDS:

- -  UNUSUAL MARKET CONDITIONS. During unusual market conditions, each of the
   Funds may invest more of its assets in money market securities than during
   normal market conditions. Although investing in these securities would serve
   primarily to avoid losses, this type of investing could prevent the Fund from
   achieving its investment objective. During these times, the investment
   manager may make frequent securities trades that could result in increased
   fees, expenses and taxes, and decreased performance.


- -  OTHER INVESTMENT STRATEGIES. Each Fund may invest in other securities and may
   use other investment strategies that are not principal investment strategies.
   Additionally, the Fund may use derivatives (financial instruments where the
   value depends upon, or is derived from, the value of something else) such as
   futures, options and forward contracts, to produce incremental earnings, to
   hedge existing positions or to increase flexibility. Just as with securities
   in which the Fund invests directly, derivatives are subject to a number of
   risks, including market, liquidity, interest rate and credit risk. In
   addition, a relatively small price movement in the underlying security,
   currency or index may result in a substantial gain or loss for the Fund using
   derivatives. Even though the Fund's policies permit the use of derivatives in
   this manner, the investment manager is not required to use derivatives.


COMPARISON OF FUNDAMENTAL POLICIES

The Buying Fund shareholders will vote on changes to the fundamental policies
for the Buying Fund at a meeting scheduled to be held on the same day as the
Selling Fund shareholder meeting. The proposed changes are shown in Exhibit B.
If all of the proposed changes to the Buying Fund's fundamental policies are
approved, the differences in investment policies will be as follows:

Each Fund has substantially similar fundamental investment policies. The Buying
Fund has a policy permitting borrowing money for temporary purposes in an amount
not exceeding one-third of the market value of its total assets. The Selling
Fund has a similar policy that applies to money or property and permits
borrowing only for extraordinary or emergency purposes. The Buying Fund has a
policy prohibiting the issuing of senior securities, except as permitted under
the 1940 Act. Even though this is not stated as a fundamental policy of the
Selling Fund, the Fund is nonetheless subject to that restriction under the
provisions of the 1940 Act.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       11
<Page>


The Buying Fund has a policy permitting the Fund to lend fund securities and
participate in an interfund lending program up to 33 1/3% of the value of the
Fund's total assets. This policy does not prohibit the Buying Fund from
purchasing money market securities, loans, loan participation or other debt
securities, or from entering into repurchase agreements. The Selling Fund has a
policy permitting the Selling Fund to lend fund securities up to 30% of its net
assets. In addition, the Selling Fund has a policy that it may make cash loans
up to 5% of its total assets. The Selling Fund has a policy prohibiting loans to
the investment manager, its board members and officers and to the board members
and officers of the Selling Fund.


The Buying Fund has a policy that it will not purchase more than 10% of the
outstanding voting securities of an issuer, except up to 25% of its total assets
may be invested without regard to this 10% limitation. The Selling Fund has a
similar policy, but does not have the 25% exception. The Buying Fund has a
policy that it will not invest more than 5% of its total assets in securities of
any one company, government, or political subdivision thereof, except the
limitation will not apply to investments in securities issued by the U.S.
government, its agencies, or instrumentalities, or other investment companies,
and except that up to 25% of its total assets may be invested without regard to
this 5% limitation. The Selling Fund has a similar policy, but does not include
other investment companies in the exception.

If shareholders of the Selling Fund approve the Reorganization, they will be
subject to the fundamental investment policies of the Buying Fund. The
investment manager does not believe that the differences between the fundamental
investment policies will result in any material difference in the way the Funds
are managed.

RISK FACTORS


Prior to October 2005, the Selling Fund had increased risks of style specific
investing, highlighted in Market Risk, as the fund emphasized growth stocks.
Since October 2005, the principal risks of investing in each of the Selling Fund
and the Buying Fund are identical and are shown below:



<Table>
<Caption>
                         NEW DIMENSIONS    NEW DIMENSIONS
RISK                     UNTIL OCT. 2005   SINCE OCT. 2005   LARGE CAP EQUITY
                                                    
Active Management Risk          x                 x                  x
Foreign Risk                    x
Issuer Risk                     x                 x                  x
Market Risk                     x                 x                  x
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       12
<Page>

- -  ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance
   therefore will reflect in part the investment manager's ability to make
   investment decisions that are suited to achieving the Fund's investment
   objective. Due to its active management, the Fund could underperform other
   mutual funds with similar investment objectives.

- -  FOREIGN RISK. The following are all components of foreign risk:

   COUNTRY RISK includes the political, economic, and other conditions of the
   country. These conditions include lack of publicly available information,
   less government oversight (including lack of accounting, auditing, and
   financial reporting standards), the possibility of government-imposed
   restrictions, and even the nationalization of assets. The liquidity of
   foreign investments may be more limited than for most U.S. investments, which
   means that, at times it may be difficult to sell foreign securities at
   desirable prices.

   CURRENCY RISK results from changing exchange rate between local currency and
   the U.S. dollar. Whenever the Fund holds securities valued in a foreign
   currency or holds the currency, changes in the exchange rate add or subtract
   from the value of the investment.

   CUSTODY RISK refers to the process of clearing and settling trades. It also
   covers holding securities with local agents and depositories. Low trading
   volumes and volatile prices in less developed markets make trades harder to
   complete and settle. Local agents are held only to the standard of care of
   the local market. Governments or trade groups may compel local agents to hold
   securities in designated depositories that are not subject to independent
   evaluation. The less developed a country's securities market is, the greater
   the likelihood of problems occurring. The liquidity of foreign investments
   may be more limited than for most U.S. investments, which means that, at
   times it may be difficult to sell foreign securities at desirable prices.

- -  ISSUER RISK. An issuer may perform poorly and therefore, the value of its
   stocks and bonds may decline. Poor performance may be caused by poor
   management decisions, competitive pressures, breakthroughs in technology,
   reliance on suppliers, labor problems or shortages, corporate restructurings,
   fraudulent disclosures, or other factors.

- -  MARKET RISK. The market value of securities may fall or fail to rise. Market
   risk may affect a single issuer, sector of the economy, industry, or the
   market as a whole. The market value of all securities may fluctuate,
   sometimes rapidly and unpredictably. This risk is generally greater for small
   and mid-sized companies, which tend to be more vulnerable to adverse
   developments. In addition, focus on a particular style, for example,
   investment in growth or value securities, may cause the Fund to
   underperformance other mutual funds if that style falls out of favor with the
   market.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       13
<Page>

PERFORMANCE

Performance information for Class A shares of the Funds is shown below.

TABLE A-1

AVERAGE ANNUAL TOTAL RETURNS AS OF SEPT. 30, 2005(a)


<Table>
<Caption>
                                                                                   SINCE       INCEPTION
FUND                                          1 YEAR     5 YEARS    10 YEARS     INCEPTION       DATE
                                                                                
New Dimensions (Selling Fund)                  0.85%     -6.17%       7.21%         N/A           N/A
Large Cap Equity (Buying Fund)                 7.27%       N/A         N/A         1.13%       3/28/2002
</Table>


(a) Returns include the 5.75% Class A sales charge.

TAX CONSEQUENCES


The Reorganization is expected to be tax-free for federal income tax purposes
and will not take place unless the Selling Fund and the Buying Fund receive a
satisfactory opinion of tax counsel, substantially to that effect. Accordingly,
no gain or loss is expected to be recognized by the Selling Fund or its
shareholders as a direct result of the Reorganization. Prior to or after
completion of the Reorganization, no major sell-offs to realign the portfolio
are expected in relation to, or as a result of the Reorganization. However, the
Reorganization will end the tax year of the Selling Fund, and so it will
accelerate distributions from the Selling Fund for its short tax year ending on
the date of the Reorganization to you as a shareholder. Those tax year-end
distributions, which are taxable, will also include any capital gains resulting
from portfolio turnover prior to the implementation of the Reorganization. At
any time prior to the consummation of the Reorganization a shareholder may
redeem shares. This would likely result in recognition of gain or loss to the
shareholder for federal income tax purposes.


The tax basis and holding period of the shareholders' Selling Fund shares is
expected to carry over to the shareholders' new shares in the Buying Fund.

For more information about the federal income tax consequences of the
Reorganization, see the section entitled "Tax Status of the Reorganization."

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       14
<Page>

FEES AND EXPENSES


The following table describes the fees and expenses adjusted to reflect current
fees that you pay if you buy and hold shares of the Selling Fund or shares of
the Buying Fund. The table also shows pro forma expenses of the Buying Fund
assuming the proposed Reorganization had been effective during the most recent
fiscal year, adjusted to reflect current fees. The fees and expenses below
exclude the costs of this Reorganization as these will be paid by Ameriprise
Financial.


TABLE A-2

ACTUAL AND PRO FORMA FUND EXPENSES FOR THE MOST RECENT FISCAL YEAR
SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

<Table>
<Caption>
                                                   CLASS A  CLASS B  CLASS C  CLASS I  CLASS Y
                                                                        
Maximum sales charge (load) imposed on
purchases(a) as a percentage of offering price      5.75%    none     none      none     none

Maximum deferred sales charge (load)
imposed on sales (as a percentage of
offering price at time of purchase)                 none(b)     5%       1%     none     none
</Table>

ANNUAL FUND OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)
AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:


<Table>
<Caption>
                                                   CLASS A  CLASS B  CLASS C  CLASS I  CLASS Y
                                                                        
NEW DIMENSIONS (SELLING FUND)(g)

Management fees(c)                                  0.45%    0.45%    0.45%    0.45%    0.45%
Distribution (12b-1) fees                           0.25%    1.00%    1.00%    0.00%    0.00%
Other expenses(d)                                   0.26%    0.29%    0.29%    0.08%    0.34%
Total                                               0.96%    1.74%    1.74%    0.53%    0.79%

LARGE CAP EQUITY (BUYING FUND)

Management fees(e)                                  0.57%    0.57%    0.57%    0.57%    0.57%
Distribution (12b-1) fees                           0.25%    1.00%    1.00%    0.00%    0.00%
Other expenses(d)                                   0.36%    0.38%    0.38%    0.15%    0.40%
Total                                               1.18%    1.95%    1.95%    0.72%    0.97%

LARGE CAP EQUITY -- PRO FORMA WITH NEW DIMENSIONS

Management fees(f)                                  0.48%    0.48%    0.48%    0.48%    0.48%
Distribution (12b-1) fees                           0.25%    1.00%    1.00%    0.00%    0.00%
Other expenses(h)                                   0.27%    0.29%    0.29%    0.08%    0.34%
Total                                               1.00%    1.77%    1.77%    0.56%    0.82%
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       15
<Page>

NOTES TO ANNUAL FUND OPERATING EXPENSES.

(a)  This charge may be reduced depending on the value of your total investments
     in RiverSource mutual funds.
(b)  For Class A purchases over $1,000,000 on which no sales charge is assessed,
     a 1% sales charge may apply if you sell your shares within one year after
     purchase.

(c)  The management fee rate is the actual fee rate charged as of fiscal year
     ended July 31, 2005. It includes the impact of a performance incentive
     adjustment that decreased the management fee by 0.07%. Prior to November
     2005 the index against which New Dimensions performance was measured for
     purposes of determining the performance incentive adjustment was the Lipper
     Large-Cap Growth Funds Index. Since November 2005, the index against which
     New Dimensions performance is measured for purposes of determining the
     performance incentive adjustment is the Lipper Large Cap Core Funds Index.
     Should this Reorganization not be approved, there is a separate proposal to
     modify the management fee schedule. Under the new fee schedule, the
     projected management fee ratio based on average net assets as of July 31,
     2005, net of the 0.07% performance incentive adjustment decrease, is 0.44%.

(d)  Other expenses include an administrative services fee, a custody fee, a
     transfer agency fee, other nonadvisory expenses and, for Class Y shares, a
     shareholder service fee. The other expense ratios shown in this chart have
     been adjusted to reflect the new administrative fee that went into effect
     October 2005.
(e)  The management fee ratio shown reflects what the ratio would be based on
     the fund's average net assets as of July 31, 2005 under the proposed
     management fee schedule. The ratio includes the impact of a performance
     incentive adjustment that decreased the management fee by 0.02%. The index
     against which the Fund's performance is measured for purposes of
     determining the performance incentive adjustment is the Lipper Large-Cap
     Core Funds Index.

(f)  The management fee ratio shown reflects what the ratio would be under the
     proposed management fee schedule based on the combined average net assets
     of the two funds as of July 31, 2005. It includes the impact of a
     performance incentive adjustment that decreased the management fee by
     0.02%. It also includes the impact of a special management fee waiver that
     will be in effect until August 2006 on the merged fund. This special
     management fee waiver is estimated to reduce the management fee ratio by
     0.01%. The index against which the Fund's performance is measured for
     purposes of determining the performance incentive adjustment is the Lipper
     Large-Cap Core Funds Index.

(g)  New Dimensions is a feeder fund that is part of a master/feeder structure.
     For New Dimensions, both in this table and the following example, fund
     operating expenses include expenses charged by both the Fund and its Master
     Portfolio.

(h)  Other expenses include an administrative services fee, a custody fee, a
     transfer agency fee, other nonadvisory expenses and, for Class Y shares, a
     shareholder services fee. The other expense ratios shown in this chart have
     been adjusted to reflect the new administrative fee that went into effect
     in October 2005. In addition, these ratios have been adjusted to reflect
     closed account fees following the Reorganization and an anticipated
     reduction in transfer agent fees due to the New Dimensions and Large Cap
     Equity accounts that will be combined as a result of the Reorganization.


EXAMPLE: These examples are intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. These examples
assume that you invest $10,000 in the Fund for the time periods indicated and
then redeem all of your shares at the end of those periods indicated under the
current arrangements and if the proposed Reorganization had been in effect.
These examples also assume that your investment has a 5% return each year and
that the Fund's operating expenses remain the same. Although your actual costs
may be higher or lower, based on these assumptions your costs would be:

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       16
<Page>


<Table>
<Caption>
FUND                                                1 YEAR      3 YEARS     5 YEARS     10 YEARS
                                                                            
NEW DIMENSIONS (SELLING FUND)
Class A(a)                                            $667       $  863      $1,076       $1,690
Class B                                               $677(b)    $  948(b)   $1,145(b)    $1,850(c)
Class C                                               $277(b)    $  548      $  945       $2,057
Class I                                               $ 54       $  170      $  297       $  668
Class Y                                               $ 81       $  253      $  440       $  982

LARGE CAP EQUITY (BUYING FUND)
Class A(a)                                            $688       $  928      $1,188       $1,929
Class B                                               $698(b)    $1,013(b)   $1,253(b)    $2,079(c)
Class C                                               $298(b)    $  613      $1,053       $2,280
Class I                                               $ 74       $  230      $  401       $  898
Class Y                                               $ 99       $  309      $  537       $1,194

LARGE CAP EQUITY - PRO FORMA WITH NEW DIMENSIONS
Class A(a)                                            $671       $  875      $1,097       $1,733
Class B                                               $680(b)    $  957(b)   $1,160(b)    $1,885(c)
Class C                                               $280(b)    $  557      $  960       $2,089
Class I                                               $ 57       $  180      $  313       $  705
Class Y                                               $ 84       $  262      $  456       $1,018
</Table>


(a)  Includes a 5.75% sales charge.
(b)  Includes the applicable contingent deferred sales charge.
(c)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

You would pay the following expenses if you did not redeem your shares.


<Table>
<Caption>
FUND                                                1 YEAR      3 YEARS     5 YEARS     10 YEARS
                                                                            
NEW DIMENSIONS (SELLING FUND)
Class A(a)                                            $667         $863      $1,076       $1,690
Class B                                               $177         $548      $  945       $1,850(b)
Class C                                               $177         $548      $  945       $2,057
Class I                                               $ 54         $170      $  297       $  668
Class Y                                               $ 81         $253      $  440       $  982
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       17
<Page>


<Table>
<Caption>
FUND                                                1 YEAR      3 YEARS     5 YEARS     10 YEARS
                                                                            
LARGE CAP EQUITY (BUYING FUND)
Class A(a)                                            $688         $928      $1,188       $1,929
Class B                                               $198         $613      $1,053       $2,079(b)
Class C                                               $198         $613      $1,053       $2,280
Class I                                               $ 74         $230      $  401       $  898
Class Y                                               $ 99         $309      $  537       $1,194

LARGE CAP EQUITY - PRO FORMA WITH NEW DIMENSIONS
Class A(a)                                            $671         $875      $1,097       $1,733
Class B                                               $180         $557      $  960       $1,885(b)
Class C                                               $180         $557      $  960       $2,089
Class I                                               $ 57         $180      $  313       $  705
Class Y                                               $ 84         $262      $  456       $1,018
</Table>


(a)  Includes a 5.75% sales charge.
(b)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

THE REORGANIZATION

TERMS OF THE REORGANIZATION

The Board has approved the Agreement, a copy of which is attached as Exhibit A.
The Agreement provides for Reorganization on the following terms:

- -  The Reorganization is scheduled to occur on the first day that the New York
   Stock Exchange is open for business following shareholder approval and
   receipt of any necessary regulatory approvals, but may occur on any later
   date agreed to by the Selling Fund and the Buying Fund.

- -  The Selling Fund will transfer all of its assets to the Buying Fund and, in
   exchange, the Buying Fund will assume the Selling Fund's stated liabilities.

- -  The Buying Fund will issue Class A, B, C, I and Y shares to the Selling Fund
   in an amount equal to the value of the assets of Classes A, B, C, I and Y
   that it receives from the Selling Fund, less the liabilities assumed by the
   Buying Fund in the transaction. These shares will immediately be distributed
   by the Selling Fund to its shareholders in proportion to their holdings in
   the Selling Fund. As a result, shareholders of the Selling Fund will become
   Class A, B, C, I or Y shareholders of the Buying Fund.

- -  Neither the Selling Fund nor the shareholders of the Selling Fund will pay
   any sales charge in connection with the Reorganization.

- -  The net asset value of the Selling Fund and the Buying Fund will be computed
   as of 3:00 p.m. Central time, on the closing date.

- -  After the Reorganization, the Selling Fund will be terminated.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       18
<Page>

CONDITIONS TO CLOSING THE REORGANIZATION

The completion of the Reorganization is subject to certain conditions described
in the Agreement, including:

- -  The Selling Fund will have declared and paid a dividend that will distribute
   all of the Fund's taxable income, if any, to the shareholders of the Fund for
   the taxable years ending at or prior to the closing.

- -  The Funds will have received any approvals, consents or exemptions from the
   SEC or any regulatory body necessary to carry out the Reorganization.

- -  A registration statement on Form N-14 will have been filed with the SEC and
   declared effective.

- -  The shareholders of the Selling Fund will have approved the Agreement.

- -  The Selling Fund will have received an opinion of tax counsel that the
   proposed Reorganization will result in no gain or loss being recognized by
   any shareholder.

TERMINATION OF THE AGREEMENT

The Agreement and the transactions contemplated by it may be terminated and
abandoned by resolutions of the Board of the Selling Fund or the Buying Fund at
any time prior to closing. In the event of a termination, there will be no
liability for damages on the part of either the Selling Fund or the Buying Fund
or the directors, officers or shareholders of the Selling Corporation or of the
Buying Corporation.

TAX STATUS OF THE REORGANIZATION

The Reorganization is expected to be tax-free for federal income tax purposes
and will not take place unless the Selling Fund and the Buying Fund receive a
satisfactory opinion of tax counsel (which opinion will be based on certain
factual representations and certain customary assumptions), to the effect that,
although not entirely free from doubt, on the basis of existing provisions of
the Internal Revenue Code of 1986, as amended (the "Code"):

- -  The transfer of the Selling Fund's assets to the Buying Fund in exchange for
   Class A, B, C, I and Y shares of the Buying Fund and the assumption of the
   Selling Fund's liabilities, followed by the distribution of those Class A, B,
   C, I and Y shares to the Selling Fund's shareholders and the termination of
   the Selling Fund will be a "reorganization" within the meaning of Section
   368(a)(1) of the Code, and the Selling Fund and the Buying Fund will each be
   a "party to the reorganization" within the meaning of Section 368(b) of the
   Code.

- -  Under Section 361 of the Code, no gain or loss will be recognized by the
   Selling Fund upon the transfer of all of its assets to the Buying Fund or on
   the distribution by the Selling Fund of Class A, B, C, I and Y shares of the
   Buying Fund to Selling Fund shareholders in liquidation.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       19
<Page>

- -  Under Section 354 of the Code, the shareholders of the Selling Fund will not
   recognize gain or loss upon the exchange of their Class A, B, C, I or Y
   shares of the Selling Fund solely for Buying Fund Class A, B, C, I or Y
   shares as part of the Reorganization.

- -  Under Section 358 of the Code, the aggregate basis of the Class A, B, C, I or
   Y shares of the Buying Fund that a Selling Fund shareholder receives in the
   Reorganization will be the same as the aggregate basis of the Class A, B, C,
   I or Y shares of the Selling Fund exchanged therefor.

- -  Under Section 1223(1) of the Code, the tax holding period for the Class A, B,
   C, I or Y shares of the Buying Fund that a Selling Fund shareholder receives
   in the Reorganization will include the period for which he or she held the
   Class A, B, C, I or Y shares of the Selling Fund exchanged therefor, provided
   that on the date of the exchange he or she held such Selling Fund shares as
   capital assets.

- -  Under Section 1032 of the Code, no gain or loss will be recognized by the
   Buying Fund upon the receipt of the Selling Fund's assets solely in exchange
   for the issuance of Buying Fund's Class A, B, C, I and Y shares to the
   Selling Fund and the assumption of all of the Selling Fund's liabilities by
   the Buying Fund.

- -  Under Section 362(b) of the Code, the Buying Fund's tax basis in the assets
   that the Buying Fund received from the Selling Fund will be the same as the
   Selling Fund's tax basis in those assets immediately prior to the transfer.

- -  Under Section 1223(2) of the Code, the Buying Fund's holding periods in the
   assets received from the Selling Fund will include the Selling Fund's holding
   periods in such assets.

- -  Under Section 381 of the Code, the Buying Fund will succeed to and take into
   account the items of the Selling Fund described in Section 381(c) of the
   Code, subject to the conditions and limitations specified in Sections 381,
   382, 383 and 384 of the Code and Regulations thereunder.

Tax counsel will express no view with respect to the effect of the
Reorganization on any transferred assets as to which any unrealized gain or loss
is required to be recognized at the end of a taxable year (or on the termination
or transfer thereof) under federal income tax principles.

Prior to the closing of the Reorganization, the Selling Fund will, and the
Buying Fund may, declare a distribution to shareholders, which together with all
previous distributions, will have the effect of distributing to shareholders all
of its investment company taxable income (computed without regard to the
deduction for dividends paid) and net realized capital gains (after reduction by
any available capital loss carryforwards), if any, through the closing of the
Reorganization. These distributions will be taxable to shareholders.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       20
<Page>

A fund's ability to carry forward capital losses and use them to offset future
gains may be limited. First, one fund's "pre-acquisition losses" (including
capital loss carryforwards, net current-year capital losses, and unrealized
losses that exceed certain thresholds) cannot be used to offset unrealized gains
in another fund that are "built in" at the time of the reorganization and that
exceed certain thresholds ("non-de minimis built-in gains") for five tax years.
Second, a portion of a fund's pre-acquisition losses may become unavailable to
offset any gains at all. Third, any remaining pre-acquisition losses will offset
capital gains realized after a reorganization and thus will reduce subsequent
capital gain distributions to a broader group of shareholders than would have
been the case absent such reorganization. Therefore, in certain circumstances,
former shareholders of a fund may pay taxes sooner, or pay more taxes, than they
would have had a reorganization not occurred.

The impact of the rules described above will depend on the relative sizes of,
and the losses and gains in, each fund at the time of the Reorganization. As
stated above, for five years beginning after the closing date, the combined fund
will not be allowed to offset gains "built in" to either fund at the time of the
Reorganization against capital losses (including capital loss carryforwards)
built in to the other fund.

However, as of August 31, 2005, the other two rules mentioned in the immediately
preceding paragraph would not have affected the Selling Fund directly because
the Selling Fund's net realized and unrealized gains exceeded its capital loss
carryforwards and thus the Selling Fund had no pre-acquisition "net losses"
(i.e., capital loss carryforwards as of its last fiscal year end as adjusted by
year-to-date realized gains or losses and all net unrealized gains) that would
have become unavailable to offset gains or been spread over a broader group of
shareholders. However, a portion of the Buying Fund's losses would have been
lost.

The realized and unrealized gains and losses of each Fund at the time of the
Reorganization will determine the extent to which the combining Funds'
respective losses, both realized and unrealized, will be available to reduce
gains realized by the combined Fund following the Reorganization, and
consequently the extent to which the combined Fund may be required to distribute
gains to its shareholders earlier than would have been the case absent the
Reorganization.

This description of the federal income tax consequences of the Reorganization
does not take into account your particular facts and circumstances. Consult your
own tax adviser about the effect of state, local, foreign, and other tax laws.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       21
<Page>

REASONS FOR THE PROPOSED REORGANIZATION AND BOARD DELIBERATIONS


The Board believes that the proposed Reorganization will be advantageous to
Selling Fund shareholders based on its consideration of the following matters:


- -  TERMS AND CONDITIONS OF THE REORGANIZATION. The Board considered the terms
   and conditions of the Reorganization as described in the previous paragraphs.

- -  TAX CONSEQUENCES. The Board considered the tax-free nature of the
   Reorganization.


- -  CONTINUITY OF INVESTMENT. The Board took into account the fact that,
   currently, the Selling Fund and the Buying Fund have an identical investment
   objective and identical investment strategies and that, as a result, both
   Funds are, in fact, managed in substantially the same way. The Board took
   note of the fact that following the Reorganization, shareholders of the
   Selling Fund will be invested in a fund holding a substantially similar
   investment securities portfolio to the portfolio currently held by the
   Selling Fund.

- -  EXPENSE RATIOS. The Board considered the relative expenses of the Funds. As
   of the end of each Fund's most recent fiscal year, the expense ratios for the
   Buying Fund were higher than the expense ratios for the Selling Fund. For
   example, the Selling Fund's expense ratio for Class A shares as of July 31,
   2005, its most recent fiscal year end, adjusted to reflect current fees
   (after giving effect to the performance incentive adjustment) was 0.96%
   (1.03% before giving effect to the performance incentive adjustment). The
   Buying Fund's expense ratio for Class A shares as of July 31, 2005, its most
   recent fiscal year end, adjusted to reflect current fees (after giving effect
   to the performance incentive adjustment) was 1.18% (1.20% before giving
   effect to the performance incentive adjustment). The Board considered that
   the Funds have the same management and administrative fee schedules with the
   same breakpoints, and that the Selling Fund's lower ratio is primarily
   attributable to the fact that it has realized additional breakpoints in its
   fee schedules because of its larger asset size. Therefore, the Board
   considered that, after taking into account the effect of the Reorganization
   (that is, the combination of the Selling Fund's assets with those of the
   Buying Fund), the Buying Fund's Class A expense ratio would experience a
   reduction (as new breakpoints are reached) and would, as a result, closely
   approximate the current Class A expense ratio of the Selling Fund (the pro
   forma expense ratio of the Buying Fund on July 31, 2005, restated to take
   into account the effect of the Reorganization, is one basis point lower than
   the Selling Fund's expense ratio on that date). In conducting this analysis,
   the Board did not take into account the effect of any performance incentive
   adjustment on the Selling Fund's or Buying Fund's expense ratio. The Board
   also considered that higher aggregate net assets resulting from the
   Reorganization and the


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       22
<Page>


   opportunity for net cash inflows (or reduced outflows) may reduce the risk
   that, if net assets of the Selling Fund fail to grow, or diminish, its total
   expense ratio could rise from current levels as fixed expenses become a
   larger percentage of net assets.

- -  ECONOMIES OF SCALE. The Board considered the advantage of combining Funds
   that share an identical investment objective and identical investment
   strategies. The Board believes that by combining the Funds, the combined fund
   can take advantage of the economies of scale associated with a larger fund.
   For example, a larger fund should have an enhanced ability to effect
   portfolio transactions on more favorable terms and should have greater
   investment flexibility. Furthermore, as indicated above, fixed expenses, such
   as audit expenses and accounting expenses that are charged on a per fund
   basis, will be reduced.

- -  COSTS. The Board considered the fact that the investment manager has agreed
   to bear all solicitation expenses in order to achieve shareholder approval of
   the Reorganization and to bear any other costs of effecting the
   Reorganization (the filing, closing and other costs of consummating the
   transaction).

- -  DILUTION. The Board considered the fact that the Reorganization will not
   dilute the interests of the current shareholders because it would be effected
   on the basis of the relative net asset value per share of the Selling Fund
   and Buying Fund, respectively. Thus, a Class A shareholder of the Selling
   Fund will receive Class A shares of the Buying Fund equal in value to his or
   her Class A shares in the Selling Fund.

- -  PERFORMANCE AND OTHER FACTORS. The Board considered the relative performance
   records of the funds. The Board took into account the better overall track
   record of the Buying Fund, when compared to the Selling Fund, over the past
   three years, noting that the difference in performance between the two funds
   was attributable to the fact that, prior to October 2005, both Funds had
   materially different investment strategies. While the Board was cognizant of
   the fact that the Buying Fund's past performance is no guarantee of its
   future results, it did recognize that the better three year track record of
   the Buying Fund could help attract more assets into the combined fund and
   therefore could help reduce the rate of outflows that have been experienced
   by the Selling Fund. The Board considered that reduced outflows or increased
   inflows could help the Selling Fund shareholders achieve further economies of
   scale (see "Economies of Scale" above).

   The Board also considered the fact that the funds have an identical
   investment objective, and, since October 2005, the same investment
   strategies, and substantially similar holdings and, absent the
   Reorganization, the two funds are likely to compete against each other for
   the same investor


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       23
<Page>


   base and, thus, could draw assets away from the other fund. The
   Reorganization should allow for a concentrated selling effort thereby
   potentially benefiting both funds. The Board further took into account the
   investment manager's belief that the Selling Fund, as a stand-alone fund, was
   unlikely to experience any growth in assets as a result of investor inflows.

- -  POTENTIAL BENEFITS TO THE INVESTMENT MANAGER AND ITS AFFILIATES. The Board
   also considered the potential benefits from the Reorganization that could be
   realized by the investment manager and its affiliates. The Board recognized
   that the potential benefits to the investment manager consist principally of
   the elimination of expenses incurred in duplicative efforts to administer
   separate funds. The Board also noted, however, that shareholders of the
   Selling Fund will benefit over time from any decrease in overall operating
   expense ratios resulting from the proposed Reorganization.


BOARDS' DETERMINATIONS


After considering the factors described above and other relevant information, at
a meeting held on Nov. 9-10, 2005, the Selling Fund Board members, including a
majority of the independent Board members, found that participation in the
Reorganization is in the best interests of the Selling Fund and that the
interests of existing shareholders of the Fund will not be diluted as a result
of the Reorganization.

The Board of Directors of the Buying Fund approved the Agreement at a meeting
held on Nov. 9-10, 2005. Among other factors, the Board members considered the
terms of the Agreement, the provisions intended to avoid the dilution of
shareholder interests and the anticipated tax consequences of the
Reorganization. The Board found that participation in the Reorganization is in
the best interests of the Buying Fund and that the interests of existing
shareholders of the Buying Fund will not be diluted as a result of the
Reorganization.


RECOMMENDATION AND VOTE REQUIRED

The Board recommends that shareholders approve the proposed Agreement. The
Agreement must be approved by a majority of the voting power of all shares
entitled to vote. If the Agreement is not approved, the Board will consider what
further action should be taken.


If shareholders approve the Reorganization, it will take place shortly after the
shareholder meeting. During the period between the shareholder meeting and the
Reorganization, or if the Reorganization is not approved, it will be important
for the Fund to have a properly elected Board and an IMS Agreement that has been
approved by shareholders. Therefore, the Board is also recommending that
shareholders approve the other proposals.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       24
<Page>

PROPOSAL 2. ELECT BOARD MEMBERS


REFERENCE TO THE "FUND" IN THIS PROPOSAL IS A REFERENCE TO NEW DIMENSIONS.

NOMINEES FOR THE BOARD. Nominees are listed in the following table. Each person
is a nominee for each of the 90 RiverSource Funds. The following nominees were
elected as members of the Board at the last regular shareholders' meeting: Mr.
Arne H. Carlson, Ms. Anne P. Jones, Mr. Stephen R. Lewis, Jr., Mr. Alan K.
Simpson, Ms. Alison Taunton-Rigby and Mr. William F. Truscott. The following
nominees are recommended for the position of Board member by the independent
Board members: Ms. Kathleen Blatz, Ms. Patricia M. Flynn, Mr. Jeffrey Laikind,
Ms. Catherine James Paglia and Ms. Vikki L. Pryor.

Each Board member will serve until the next regular shareholders' meeting or
until he or she reaches the mandatory retirement age established by the Board.
Under the current Board policy, members may serve until the end of the meeting
following their 75th birthday, or the fifteenth anniversary of the first Board
meeting they attend as members of the Board, whichever occurs first. This policy
does not apply to Ms. Jones, who may retire following her 75th birthday.


All nominees have agreed to serve. If an unforeseen event prevents a nominee
from serving, your votes will be cast for the election of a substitute selected
by the Board. Information on each nominee follows. Election requires a vote by a
majority of the fund's shares voted at the meeting.




               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       25
<Page>

TABLE A-3. INDEPENDENT NOMINEES


<Table>
<Caption>
NAME,                   POSITION HELD WITH
ADDRESS,                FUND AND LENGTH         PRINCIPAL OCCUPATION                                           COMMITTEE
AGE                     OF SERVICE              DURING PAST FIVE YEARS                    OTHER DIRECTORSHIPS  MEMBERSHIPS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                   
Kathleen Blatz          Board member since      Chief Justice, Minnesota Supreme
901 Marquette Ave.      January 2006            Court, 1998-2005
Minneapolis, MN 55402
Age 51

Arne H. Carlson         Board member since      Chair, Board Services Corporation                              Contracts,
901 S. Marquette Ave.   1999                    (provides administrative services to                           Executive,
Minneapolis, MN 55402                           boards); former Governor of Minnesota                          Investment Review,
Age 71                                                                                                         Board Effectiveness

Patricia M. Flynn       Board member since      Trustee Professor of Economics and                             Investment Review,
901 S. Marquette Ave.   2004                    Management, Bentley College; former                            Joint Audit
Minneapolis, MN 55402                           Dean, McCallum Graduate School of
Age 54                                          Business, Bentley College

Anne P. Jones           Board member since      Attorney and consultant                                        Joint Audit, Board
901 S. Marquette Ave.   1985                                                                                   Effectiveness,
Minneapolis, MN 55402                                                                                          Executive,
Age 70                                                                                                         Investment Review
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       26
<Page>

INDEPENDENT NOMINEES (CONTINUED)


<Table>
<Caption>
NAME,                   POSITION HELD WITH
ADDRESS,                FUND AND LENGTH OF      PRINCIPAL OCCUPATION                                           COMMITTEE
AGE                     SERVICE                 DURING PAST FIVE YEARS                    OTHER DIRECTORSHIPS  MEMBERSHIPS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                   
Jeffrey Laikind         Board member since      Former Managing Director, Shikiar         American
901 S. Marquette Ave.   2005                    Asset Management                          Progressive
Minneapolis, MN 55402                                                                     Insurance
Age 70

Stephen R. Lewis, Jr.   Board member since      President Emeritus and Professor of       Valmont Industries,  Contracts,
901 S. Marquette Ave.   2002                    Economics, Carleton College               Inc. (manufactures   Investment Review,
Minneapolis, MN 55402                                                                     irrigation systems)  Executive, Board
Age 65                                                                                                         Effectiveness

Catherine James Paglia  Board member since      Director, Enterprise Asset Management,    Strategic            Contracts,
901 S. Marquette Ave.   2004                    Inc. (private real estate and asset       Distribution, Inc.   Investment Review
Minneapolis, MN 55402                           management company)                       (transportation,
Age 53                                                                                    distribution and
                                                                                          logistics
                                                                                          consultants)

Vikki L. Pryor                                  President and Chief Executive Officer,
901 S. Marquette Ave.                           SBLI USA Mutual Life Insurance Company,
Minneapolis, MN 55402                           Inc. since 1999
Age 52

Alan K. Simpson         Board member since      Former three-term United States Senator                        Investment Review,
1201 Sunshine Ave.      1997                    for Wyoming                                                    Board Effectiveness
Cody, Wyoming 82414
Age 74
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       27
<Page>

INDEPENDENT NOMINEES (CONTINUED)


<Table>
<Caption>
NAME,                   POSITION HELD WITH
ADDRESS,                FUND AND LENGTH OF      PRINCIPAL OCCUPATION                                           COMMITTEE
AGE                     SERVICE                 DURING PAST FIVE YEARS                    OTHER DIRECTORSHIPS  MEMBERSHIPS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                   
Alison Taunton-Rigby    Board member since      Chief Executive Officer, RiboNovix, Inc.  Hybridon, Inc.       Investment Review,
901 S. Marquette Ave.   2002                    since 2003 (biotechnology); former        (biotechnology)      Contracts
Minneapolis, MN 55402                           President, Forester Biotech
Age 61
</Table>



TABLE A-4. NOMINEE AFFILIATED WITH RIVERSOURCE INVESTMENTS



<Table>
<Caption>
NAME,                   POSITION HELD WITH
ADDRESS,                FUND AND LENGTH OF      PRINCIPAL OCCUPATION                                           COMMITTEE
AGE                     SERVICE                 DURING PAST FIVE YEARS                    OTHER DIRECTORSHIPS  MEMBERSHIPS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                                   
William F. Truscott*    Board member since      President - U.S. Asset Management and
53600 Ameriprise        2001, Vice President    Chief Investment Officer, Ameriprise
Financial Center        since 2002              Financial, Inc. and President, Chairman
Minneapolis, MN 55474                           of the Board and Chief Investment
Age 45                                          Officer, RiverSource Investments, LLC
                                                since 2005; Senior Vice President -
                                                Chief Investment Officer, Ameriprise
                                                Financial, Inc. and Chairman of the
                                                Board and Chief Investment Officer,
                                                RiverSource Investments, LLC, 2001-2005;
                                                former Chief Investment Officer and
                                                Managing Director, Zurich Scudder
                                                Investments
</Table>


*    Interested person by reason of being an officer, director, securityholder
     and/or employee of RiverSource Investments.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       28
<Page>

BOARD COMMITTEES. The Board has several committees that facilitate the work of
the Board. The Executive Committee has authority to act for the full Board
between meetings. The Contracts Committee receives and analyzes reports covering
the level and quality of services provided under contracts with the fund and
advises the Board regarding actions taken on these contracts during the annual
review process. The Investment Review Committee considers investment management
policies and strategies; investment performance; risk management techniques; and
securities trading practices and reports areas of concern to the Board.

The Board Effectiveness Committee's charter, Exhibit E, requires it to make
recommendations regarding nominees based on criteria approved by the Board. All
members of the Committee are independent. Nominee recommendations are based on a
matrix of skill sets, experience, and geographical location and each nominee
must have a background that demonstrates the ability to furthering the interest
of all shareholders. The Committee will consider recommendations from
shareholders who write to the Boards and provide detailed information about a
candidate. All candidates are processed in the same fashion; first by evaluating
a candidate's detailed information against the criteria; then interviewing those
candidates who best fill vacancies identified by the matrix.


You may write the Board by addressing a letter to Arne H. Carlson, the
independent Chair of the Board or any other independent member of the Board, at
Board Services Corporation, 901 Marquette Avenue South, Suite 2810, Minneapolis,
MN 55402-3268. However, do not address letters to this address if you are
requesting some action regarding your investments. In order to avoid any delay
in processing a request regarding an investment, please address these requests
to 70100 Ameriprise Financial Center, Minneapolis, MN 55474.


The Joint Audit Committee, made up entirely of independent Board members,
operates under a written charter, Exhibit F. The Joint Audit Committee meets
with the independent auditors, internal auditors and corporate officers to
review and discuss audited financial statements, reports, issues, and compliance
matters. This Committee reports significant issues to the Board and makes
recommendations to the independent Board members regarding the selection of the
independent public accountant. More information regarding this Committee and the
fund's independent auditor is found in Section C.


During the 12-month period ended Sept. 30, 2005, the Board met 8 times,
Executive 2 times, Contracts 7 times, Investment Review 5 times, Board
Effectiveness 6 times and Joint Audit 4 times. All Board members had 100%
attendance except for Mr. Simpson who had 82% attendance due to serious illness
in January 2005.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       29
<Page>

SHAREHOLDER COMMUNICATIONS WITH THE BOARD. Shareholders may communicate directly
with the Board by sending correspondence to Arne H. Carlson, Chair of the Board,
RiverSource Funds, 901 Marquette Avenue South, Suite 2810, Minneapolis, MN
55402-3268. Correspondence to specific individual Board members also may be
directed to the same address. Account-specific correspondence should be directed
to RiverSource Funds, 70100 Ameriprise Financial Center, Minneapolis, MN 55474.

BOARD MEMBER COMPENSATION. The following table shows the total compensation
received by each Board member from all of the RiverSource Funds. The funds do
not pay retirement benefits to Board members. Under a Deferred Compensation
Plan, independent Board members may defer receipt of their compensation.
Deferred amounts are treated as though equivalent dollar amounts had been
invested in shares of one or more designated RiverSource funds.

TABLE A-3. BOARD MEMBER COMPENSATION(a)


<Table>
<Caption>
                AGGREGATE COMPENSATION FROM ALL   COMPENSATION FROM THE
                   RIVERSOURCE FUNDS FOR THE       SELLING FUND DURING
NOMINEE            YEAR ENDED SEPT. 30, 2005         LAST FISCAL YEAR
                                            
Flynn                     $143,675(b)                    $2,958(c)
Jones                      185,892                        4,579
Lewis                      204,700                        4,730(d)
Paglia                     157,708(e)                     3,317
Simpson                    138,842                        4,075
Taunton-Rigby              166,842                        4,375
</Table>



(a)  Board members affiliated with RiverSource Investments or Board Services
     Corporation, a company providing administrative services to RiverSource
     funds, are not paid by RiverSource funds. Mr. Carlson's total compensation
     was $373,750. Board member compensation is a combination of a base fee and
     meeting fees. Because the spin-off of Ameriprise Financial from American
     Express Company necessitated 5 additional meetings, each Board member was
     paid $23,500 to cover those additional meetings. That cost, which is
     included in the aggregate compensation shown above, was borne by Ameriprise
     Financial. Ms. Blatz, Mr. Laikind and Ms. Pryor were not Board members
     prior to Sept. 30, 2005 and therefore are not included in the table.
(b)  Includes the portion of compensation deferred in the amount of $60,371 from
     RiverSource funds.

(c)  Includes the portion of compensation deferred in the amount of $1,225 from
     the Fund.
(d)  Includes the portion of compensation deferred in the amount of $1,716 from
     the Fund.

(e)  Includes the portion of compensation deferred in the amount of $54,839 from
     RiverSource funds.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       30
<Page>


The following table shows the dollar range of shares of all RiverSource funds
owned by the Board members and the dollar range of shares owned in the Selling
Fund.

TABLE A-4. BOARD MEMBER HOLDINGS*

Dollar range of equity securities beneficially owned as of Sept. 30, 2005


<Table>
<Caption>
                 AGGREGATE DOLLAR RANGE OF EQUITY      DOLLAR RANGE OF EQUITY
               SECURITIES OF ALL RIVERSOURCE FUNDS        SECURITIES IN THE
NOMINEE              OVERSEEN BY BOARD MEMBER              SELLING FUND**
                                                 
Carlson                   over $100,000                        None
Flynn                   $10,001 - $50,000                      None
Jones                     over $100,000                 $50,001 - $100,000
Lewis                     over $100,000                        None
Paglia                 $50,001 - $100,000                      None
Simpson                $50,001 - $100,000                      None
Taunton-Rigby             over $100,000                        None
Truscott                  over $100,000                        None
</Table>


*    Ms. Blatz, Mr. Laikind and Ms. Pryor were not Board members prior to Sept.
     30, 2005 and therefore are not included in the table.

**   The percentage of shares beneficially owned by all Board members and
     officers as a group does not exceed 1% of any class of shares of the fund.

FUND OFFICERS. In addition to Mr. Truscott, the fund's other executive officers
are:

LESLIE L. OGG, age 67. Vice president, general counsel and secretary since 1978.
President of Board Services Corporation.

JEFFREY P. FOX, age 50. Treasurer since 2002. Vice President - Investment
Accounting of Ameriprise Financial.


PAULA R. MEYER, age 51. President since 2002. Senior Vice President - Mutual
Funds, RiverSource Investments.

BETH E. WEIMER, age 52. Chief Compliance Officer since 2004. Vice President and
Chief Compliance Officer, Ameriprise Financial and Chief Compliance Officer,
RiverSource Investments.

Officers serve at the pleasure of the Board. Officers are paid by Ameriprise
Financial, RiverSource Investments or Board Services Corporation. During the
last fiscal year, no officer earned more than $60,000 from any fund.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       31
<Page>

PROPOSAL 3. APPROVE OR REJECT AN AMENDMENT TO THE ARTICLES OF INCORPORATION


REFERENCE TO THE "FUND" IN THIS PROPOSAL IS A REFERENCE TO NEW DIMENSIONS.


The fund is a Minnesota corporation and operates under an organizational
document called the articles of incorporation. The articles of incorporation set
forth various provisions relating to the authority of the fund to conduct
business and the governance of the fund.

The Board has approved, and recommends that shareholders approve, a proposal to
amend the fund's articles of incorporation (the "Articles"). The fund's
investments and investment policies will not change by virtue of the adoption of
the amendment to the Articles.

A. MINIMUM ACCOUNT VALUE.

Generally, shareholders must invest at least $2,000 to open a fund account.
Section 7 of the Articles currently provides that the fund may redeem shares if
an account falls below a value of $1,000. Small accounts can be costly to
maintain and this provision allows the Board to close accounts that no longer
meet the fund's minimum standards. However, the current provision does not allow
the Board to redeem accounts if the value is higher than $1,000. In the future,
there may be circumstances in which a minimum account value higher than $1,000
is in the best interest of the fund and its shareholders. As a consequence, the
Board recommends that the Articles be amended to eliminate the reference to a
specific dollar amount. As proposed, the amended Articles will permit the Board
to establish a minimum account value that will be disclosed in the fund
prospectus. The Board will be able to change the minimum account value without
further action by shareholders.


If the change is approved, the Articles will be amended as follows (additions
are [underline] underlined[/underline], [strikethrough] deletions are lined
through [/strikethrough]):


Article III, Section 7 will be amended to read:


Section 7. The Fund may redeem the shares of a shareholder if the amount
invested is less than [strikethrough] $1,000 [/strikethrough] [underline] an
amount determined by the Board of Directors and set forth in the current Fund
prospectus. [/underline]

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       32
<Page>

B. NAME CHANGE.


Historically the name of the fund has reflected the name of the investment
manager. Since 1999, the name of the fund has included the letters AXP, which is
an abbreviated form of the name American Express. In August 2005, American
Express Financial Corporation ("AEFC"), the fund's investment manager changed
its name to Ameriprise Financial, Inc. in anticipation of its spin off from
American Express Company, its parent company. On Oct. 1, 2005, Ameriprise
Financial transferred responsibility for the fund's investment advisory services
to its wholly-owned subsidiary, RiverSource Investments. The Board made a
corresponding change to the name of the fund by substituting the name
RiverSource for AXP. The fund is part of a corporation made up of one fund. The
name of the corporate entity can be changed only with approval of the
shareholders of all the underlying funds that make up the corporation. The Board
recommends that the name of the corporate entity also be changed to include the
name RiverSource instead of AXP. The change to the name of the corporation is
shown in the table below.

This is the first shareholder meeting since the spin off of the investment
manager and the first opportunity for shareholders to consider a name change for
the corporation.


TABLE A-5. PROPOSED NAME OF CORPORATION

<Table>
<Caption>
CURRENT NAME OF CORPORATION                PROPOSED NAME OF CORPORATION
                                        
AXP Dimensions Series, Inc.                RiverSource Dimensions Series, Inc
</Table>

BOARD RECOMMENDATION AND VOTE REQUIRED. The Board recommends that you vote to
approve the amendments to the Articles. The changes require the approval by a
majority of the shares voted at the meeting. The changes will be effective when
the amendments are filed with the Secretary of State's office. This filing is
expected to occur shortly after the shareholder meeting.




               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       33
<Page>

PROPOSAL 4. APPROVE OR REJECT AN INVESTMENT MANAGEMENT SERVICES AGREEMENT WITH
RIVERSOURCE INVESTMENTS, LLC


REFERENCE TO THE "FUND" IN THIS PROPOSAL IS A REFERENCE TO NEW DIMENSIONS.

The fund pays fees to RiverSource Investments under an Investment Management
Services Agreement (the "IMS Agreement") for investment management services. The
services include providing the personnel, equipment and office facilities
necessary for the management of the fund's assets. Subject to the oversight of
the Board and consistent with the fund's investment policies, the investment
manager decides what securities to buy, hold or sell. The investment manager
also executes buy and sell orders and provides research and statistical data to
support investment management activities.

INVESTMENT MANAGER. On Sept. 30, 2005, Ameriprise Financial became a publicly
traded company and on Oct. 1, 2005 transferred the investment management
functions and IMS Agreement to RiverSource Investments, a wholly-owned
subsidiary. While these transfers did not cause a termination of the IMS
Agreement, the Board determined that it would be prudent to give shareholders an
opportunity to vote on the arrangement and the changes discussed below.

SUMMARY OF KEY CHANGES

A.   PERFORMANCE INCENTIVE ADJUSTMENT ("PIA"). The management fee includes a PIA
     as part of the fee calculation. The PIA calculation is based on the
     performance of the fund compared to the performance index of a group of
     comparable mutual funds compiled by Lipper, Inc. ("Lipper"). The proposed
     change clarifies the circumstances under which the Board may change an
     index for purposes of calculating the PIA.

B.   STANDARD OF CARE. For all funds, the investment manager will be held to a
     higher standard of care than under the current IMS Agreement.

C.   CONFIDENTIALITY. The proposed IMS Agreement contains an explicit
     acknowledgement from the fund that the investment manager may be prevented
     from divulging or acting upon certain confidential information learned in
     connection with its activities, including the provision of investment
     advice to clients other than the fund. In addition, the proposed IMS
     Agreement contains additional confidentiality provisions prohibiting the
     fund from disclosing to third parties any information or advice furnished
     by the investment manager to the fund, except under limited circumstances.

D.   AMENDMENTS. The proposed IMS Agreement clarifies that, as permitted under
     applicable law, the parties may make non-material amendments or
     modifications without obtaining shareholder approval.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       34
<Page>


TERMS OF THE CURRENT IMS AGREEMENT. The fee the fund pays to RiverSource
Investments for its services under the current IMS Agreement is based on the net
assets of the fund and decreases as the size of the fund increases. The complete
fee schedule for the fund and other similar funds managed by RiverSource
Investments is found in Section C. The fund also pays its taxes, brokerage
commission and nonadvisory expenses, which include custodian fees; audit and
certain legal fees; fidelity bond premiums; registration fees for shares;
consultant fees; Board compensation; corporate filing fees; organizational
expenses; expenses incurred in connection with lending portfolio securities; and
other expenses properly payable by the fund, approved by the Board. Section C
includes information on the date of the current IMS Agreement, the date it was
last approved by shareholders and the reason why it was submitted to
shareholders at that time.

A.   PIA CALCULATION. The management fee includes a PIA as part of the fee. The
     adjustment is based on the performance of the fund compared to the
     performance of a Lipper Index. The proposed modification does not change
     the IMS Agreement, but clarifies the circumstances where the Board may
     change the index for purposes of this calculation. The provision in the
     current IMS Agreement will be modified to read as follows (additions are
     underlined, deletions are lined through):

          If an Index ceases to be published for a period of more than 90 days,
          changes in any material respect, otherwise becomes impracticable or,
          in the discretion of the Board, is no longer appropriate to use for
          purposes of a performance incentive adjustment, for example, if Lipper
          reclassifies the Fund from one peer group to another, the Board may
          take action it deems appropriate and in the best interests of
          shareholders, including: (1) discontinuance of the performance
          incentive adjustment until such time as it approves a substitute
          index, or (2) adoption of a methodology to transition to a substitute
          index it has approved.

     The PIA is determined by measuring the difference in the fund's performance
     from an appropriate Lipper Index over a rolling 12-month period. Should the
     Board approve the use of a substitute index, it may transition to the
     substitute index by introducing it gradually over time, to avoid unintended
     swings in the PIA.

B.   STANDARD OF CARE. The proposed IMS Agreement revises the standard of care
     to provide that, except for bad faith, intentional misconduct or negligence
     in regard to the performance of its duties pursuant to the agreement,
     neither the investment manager, nor any of its respective directors,
     officers, partners,


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       35
<Page>


     principals, employees, or agents shall be liable for any acts or omissions
     or for any loss suffered by the fund or its shareholders or creditors. This
     means that the investment manager is held to a higher standard of care.

C.   CONFIDENTIALITY. The current IMS Agreement contains an acknowledgement by
     the fund that the investment manager renders investment advice and other
     services to other investment companies and persons which may or may not
     have investment policies and investments similar to those of the fund. The
     proposed IMS Agreement adds an explicit acknowledgement from the fund that
     the investment manager may not be free to divulge to the fund or act, for
     the benefit of the fund, upon confidential information learned in
     connection with its activities, including the provision of investment
     advice to clients other than the fund.

     The current IMS Agreement is silent on the fund's obligation to refrain
     from divulging confidential information. The proposed IMS Agreement
     includes a new provision that prohibits the fund from disclosing to third
     parties any information or advice furnished to the fund by the investment
     manager, unless required by law or necessary to provide services to the
     fund.

D.   AMENDMENTS. The current IMS Agreement does not address whether shareholder
     approval must be obtained before non-material amendments or modifications
     may be made. The proposed IMS Agreement includes a new provision clarifying
     that the parties may make non-material amendments or modifications without
     obtaining shareholder approval, as permitted under applicable law.

BASIS FOR RECOMMENDATION OF THE BOARD

Following announcement of the spin-off of Ameriprise Financial from American
Express Company, the Board and Ameriprise Financial agreed to review and revise,
where appropriate, the terms of all contracts, including the IMS Agreement,
pursuant to which Ameriprise Financial or its affiliates provides services to
the funds. Each year, the Board determines whether to continue the IMS Agreement
for the fund and, in doing so, evaluates the quality and level of service
received under the IMS Agreement and the costs associated with those services.
Accordingly, in March and April of each year, Ameriprise Financial prepares
detailed reports for the Board, which include data prepared by independent
organizations, to assist the Board in making this determination. The Board
accords considerable weight to the work, deliberations and conclusions of its
committees in determining whether to continue the IMS Agreement.

After thorough review of the reports and data provided at a meeting held in
person on April 14, 2005, the Board, including all of its independent members,
determined that the quality and level of advisory services provided pursuant to
the IMS Agreement for the fund were satisfactory and that fees were fair and


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       36
<Page>


reasonable. However, in light of the announced plans of the spin-off, the Board
approved continuation of the IMS Agreement for only an interim period ending on
the later of (i) the effective date of the spin-off; or (ii) the approval of a
new investment management services agreement with Ameriprise Financial (or its
subsidiary) by the shareholders of the fund, but in no event for a period longer
than one year. While it was expected that the spin-off would not result in an
"assignment" of an IMS Agreement under the 1940 Act and, therefore, would not
cause the termination of the IMS Agreement according to its terms, Schulte Roth
& Zabel LLP, retained as independent counsel to the Board, advised the Board
that the legal question of whether the spin-off would result in an assignment
turns on a highly fact-sensitive analysis. Therefore, the Board determined, as a
matter of prudence, to proceed as if the IMS Agreement would terminate as a
result of the spin-off. Accordingly, the Board determined to renew the IMS
Agreement for the interim period only and to consider a new IMS Agreement for
the fund prior to the spin-off.

For the six months following the April 2005 meeting, the Board and its
committees evaluated whether to approve a proposed IMS Agreement for the fund
with post-spin Ameriprise Financial (or its subsidiary). Schulte Roth & Zabel
LLP assisted the Board in fulfilling its statutory and other responsibilities
associated with the spin-off and the resulting consideration of new contracts,
including the proposed IMS Agreement. As a key step in this process, independent
counsel sent, on behalf of the independent members of the Board, a detailed and
expansive request for information to American Express Company and Ameriprise
Financial, seeking specified information thought to be relevant to the Board's
consideration of the proposed contracts with post-spin Ameriprise Financial. The
Board and its committees were provided with a wealth of written and oral
information intended to assist them in considering the proposed contracts,
including the proposed IMS Agreement. Furthermore, in connection with the
Board's considerations as to whether post-spin Ameriprise Financial, as an
independent entity, would be capable of continuing to provide a high quality of
services to the funds, the Board's independent members retained their own
financial adviser, Credit Suisse First Boston LLC ("CSFB"). At the Board's
requests, CSFB provided various written materials and oral presentations
analyzing the capital adequacy of Ameriprise Financial. The costs of independent
counsel and CSFB and of additional meetings of the Board were borne by
Ameriprise Financial as part of the commitment of American Express Company to
ensure a complete and thorough review of the proposed spin-off and its effect on
the services provided by Ameriprise Financial and its subsidiaries.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       37
<Page>


During the course of the six-month period following the April 2005 meeting, the
Board and its committees met at five in-person meetings to consider the
information provided by American Express Company, Ameriprise Financial,
independent counsel and CSFB. At an in-person meeting held on Sept. 8, 2005,
based on all of the information provided as well as the deliberations occurring
at that meeting and the previous meetings held since the announcement of the
spin-off, the Board, including all of its independent members, approved each of
the new contracts, including the proposed IMS Agreement.

On Oct. 1, 2005, pursuant to an agreement between the Fund and Ameriprise
Financial, the IMS Agreement was transferred to RiverSource Investments, a
wholly-owned subsidiary of Ameriprise Financial.

For these reasons, the Board, including all of its independent members,
recommends that you approve the proposed IMS Agreement for the fund.

THE BOARD'S SPECIFIC CONSIDERATIONS RELATING TO THE PROPOSED IMS AGREEMENT. In
carrying out its legal responsibilities associated with the consideration of the
proposed IMS Agreement, the Board evaluated the following four factors: (i) the
nature, extent and quality of services to be provided by RiverSource
Investments; (ii) the investment performance of the fund; (iii) the costs of the
services to be provided and the profits to be realized by Ameriprise Financial;
and (iv) the extent to which economies of scale would be realized as the fund
grows and whether the fee level reflects these economies of scale for the
benefit of fund investors.

NATURE, EXTENT AND QUALITY OF SERVICES TO BE PROVIDED BY POST-SPIN AMERIPRISE
FINANCIAL (AND ITS SUBSIDIARIES). The Board recognized that only a few months
had passed since its April 2005 determination to renew the IMS Agreement for the
fund and that in April 2005, it had concluded that the nature, extent and
quality of services provided by Ameriprise Financial were satisfactory and
consistent with those that would be expected for a fund family of the size of
RiverSource funds. However, the Board also recognized that this assessment must
be supplemented with an evaluation of whether the spin-off or other factors
would result in any changes to the advisory services currently provided to the
funds. In this regard, the Board focused its evaluation on the following factors
potentially impacting the nature, extent and quality of advisory services to be
provided by RiverSource Investments: (i) Ameriprise Financial's projected
capital structure and capital adequacy as a stand-alone entity; (ii) its legal
and regulatory risks; (iii) its ability to retain and attract personnel; and
(iv) its ability to successfully rebrand its products and services. Based on
extensive presentations and reports by Ameriprise Financial, CSFB and
independent counsel, the Board concluded that the proposed capital structure
(which includes certain indemnification commitments made by American Express
Company)


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       38
<Page>


should enable RiverSource Investments to continue to provide a high quality of
advisory services to the funds. In making this determination, the Board took
into account representations by management of Ameriprise Financial that
projected capital levels would allow Ameriprise Financial (including RiverSource
Investments) to continue to meet its legal and compliance responsibilities,
build its distribution network, pursue technological upgrades, make capital
commitments necessary to retain and attract key personnel devoted to legal and
compliance responsibilities, portfolio management and distribution, and pursue
smaller asset management acquisitions to help grow its business. The Board
accorded significant weight to CSFB's confirmation as to the reasonableness of
the foregoing representations. The Board also considered the fact that there
were no expected departures of key personnel involved in the portfolio
management, operations and marketing of the funds as a result of the
announcement of the spin-off.

The Board concluded that, based on all of the materials and information provided
(and with the assistance of independent counsel), post-spin Ameriprise Financial
(including RiverSource Investments) would be in a position to continue to
provide a high quality of investment management services to the funds.

INVESTMENT PERFORMANCE. The Board next focused on investment performance. The
Board reviewed reports documenting the fund's performance over one-, three- and
five-year periods, as well as the entire period during which its current
portfolio manager has managed the fund, and compared the performance to relevant
Lipper and market indices. The Board took into account its considerations in
April 2005, in particular, that investment performance in 2004 was below median,
but that Ameriprise Financial has taken steps to address the underperformance.

The Board also considered that it has received monthly performance reports for
the funds. The Board and its committees concluded in September 2005 that there
have been no significant deviations from April's overall performance data.

COST OF SERVICES PROVIDED. The Board evaluated comparative fees and the costs of
services to be provided under the current and proposed IMS Agreements, including
fees charged by Ameriprise Financial (including RiverSource Investments and
other subsidiaries) to its institutional clients and paid to subadvisers. The
Board studied RiverSource Investments' effort (its "pricing philosophy") to set
most funds' total expense ratios at or below the median expense ratio of their
peer groups. The Board considered that the fund's management fees would not
change under the proposed IMS Agreement. The Board also took into account the
effect of the proposed performance incentive adjustment on the advisory fee. In
this regard, the Board took into account its past determinations regarding the
appropriateness of; (i) the use of the


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       39
<Page>


appropriate index for the fund for the comparison of performance; (ii) the
methodology for determining when the Board may change an index used to calculate
the performance incentive adjustment; (iii) the periods used for averaging the
fund's assets and computing investment performance; and (iv) the length of the
period over which performance is computed.

The Board next considered the expected profitability to RiverSource Investments
and its affiliates derived from their relationships with the fund, recalling the
April 2005 determination that the profitability level was appropriate. The Board
noted that projected profitability of RiverSource Investments would allow it to
operate effectively and, at the same time, reinvest in its businesses. The Board
also considered that the proposed changes in advisory fees for certain
RiverSource funds, as well as the mergers of certain RiverSource funds would
result in revenue gains, while taking into account that these increases would
not materially alter profit margins due to expected increases in costs
associated with the spin-off, particularly rebranding and separation. CSFB also
reported that Ameriprise Financial's projected level of return on equity was
generally reasonable in light of the returns on equity of its industry
competitors. In evaluating profitability, the Board also considered the benefits
Ameriprise Financial obtains through the use of commission dollars paid on
portfolio transactions for the fund and from other business relationships that
result from managing the fund. The Board also considered the fees charged by
Ameriprise Financial to its institutional clients and paid to subadvisers,
noting the differences in services provided in each case. In light of these
considerations, the Board concluded that projected profitability levels were
appropriate.

ECONOMIES OF SCALE. The Board also considered the breakpoints in fees that would
be triggered as the net asset levels of the fund grew and the extent to which
shareholders would benefit from such growth. The Board observed that the fee
schedule under the proposed IMS Agreement would continue to provide breakpoints
similar to those in place pursuant to the current IMS Agreement. Accordingly,
the Board concluded that the proposed IMS Agreement provides adequate
opportunity for shareholders to realize benefits as fund assets grow.

OTHER CONSIDERATIONS. In addition, the Board accorded weight to the fact that,
under the proposed IMS Agreement, RiverSource Investments is held to a higher
standard of care than under the current IMS Agreement. The Board also noted
Ameriprise Financial's commitment to a culture that adheres to ethical business
practice, assigns accountability to senior management and seeks to identify
conflicts and propose appropriate action to minimize the risks posed by the
conflicts. Furthermore, the Board recognized that it was not limited to
considering management's proposed contracts. In this regard, the Board


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       40
<Page>


evaluated the circumstances under which it would consider the retention of an
investment adviser different from RiverSource Investments (or its subsidiaries).
The Board concluded, based on its consultation with independent counsel, that
pursuing the retention of a different adviser was not necessary, primarily
because, in its best judgment, RiverSource Investments continues to be basically
the same organization (from a functional and managerial standpoint), as it was
prior to the spin-off. The Board reasoned that shareholders purchased shares of
the fund with an expectation that the current investment advisory organization
would be servicing the fund.

As a result of all of the foregoing, the Board determined that the fees to be
paid under the proposed IMS Agreement were fair and reasonable in light of
services proposed to be provided.

BOARD RECOMMENDATION AND VOTE REQUIRED. For the foregoing reasons, the Board
recommends that shareholders of the fund approve the proposed IMS Agreement. The
proposed IMS Agreement must be approved by the lesser of (a) a majority of the
fund's outstanding shares or (b) 67% of the shares voted at the meeting, so long
as more than 50% of the shares actually vote. If shareholders approve the
proposed IMS Agreement, it will take effect shortly after the shareholder
meeting. If the proposed IMS Agreement is not approved, the Board will consider
appropriate steps to take.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       41
<Page>


SECTION B -- PROXY VOTING AND SHAREHOLDER MEETING INFORMATION

REFERENCE TO THE "FUND" IN THIS SECTION IS A REFERENCE TO NEW DIMENSIONS.

VOTING. You are entitled to vote based on your total dollar interest in the
Fund. Each dollar is entitled to one vote. For those of you who cannot come to
the meeting, the Board is asking permission to vote for you. The shares will be
voted as you instruct either by mail, telephone or internet. Signed proxy cards
returned without instructions will be voted in favor of all proposals.

In voting for Board members, you may vote all of your shares cumulatively. This
means that you have the right to give each nominee an equal number of votes or
divide the votes among the nominees as you wish. You have as many votes as the
number of dollars you own on the record date, multiplied by the number of Board
members to be elected. If you elect to withhold authority for any individual
nominee or nominees, you may do so by marking the box labeled "For All Except,"
and by striking the name of any excepted nominee, as is further explained on the
card itself. If you do withhold authority, the proxies will not vote shares
equivalent to the proportionate number applicable to the names for which
authority is withheld.

All votes count toward a quorum, regardless of how they are voted (For, Against
or Abstain). Broker non-votes will be counted toward a quorum but not toward the
approval of any proposals. (Broker non-votes are shares for which the underlying
owner has not voted and the broker holding the shares does not have authority to
vote.)

If your shares are held in an IRA account with Ameriprise Trust Company as
custodian, you have the right to instruct the IRA Custodian how to vote those
shares. The IRA Custodian will vote any shares for which it has not received
voting instructions in proportionately the same manner -- either For, Against,
or Abstain -- as other fund shareholders have voted.

MASTER/FEEDER FUNDS. New Dimensions currently is part of a master/feeder
structure. The feeder fund seeks its investment objective by investing its
assets in a master fund with the same policies. The master fund invests in and
manages the securities. Immediately prior to the Reorganization, the Board
intends to withdraw the Fund's assets from the master fund.

REVOKING YOUR PROXY. If you change your mind after you vote and you can attend
the meeting, simply inform the Secretary at the meeting that you will be voting
your shares in person. Also, if you change your mind after you vote, but cannot
attend the meeting, you may change your vote or revoke it by mail, telephone or
internet.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       42
<Page>


SIMULTANEOUS MEETINGS. The meeting will be held simultaneously with meetings of
other RiverSource mutual funds. Each proposal will be voted on separately by
shareholders of a corporation or by shareholders of a fund or by a class of
shares of the fund where appropriate. If any shareholder objects to the holding
of simultaneous meetings, the shareholder may move for an adjournment of his or
her fund's meeting to a time immediately after the simultaneous meetings so that
a meeting of that fund may be held separately. If a shareholder makes this
motion, the persons named as proxies will take into consideration the reasons
for the objection in deciding whether to vote in favor of the adjournment.

SOLICITATION OF PROXIES. The Board is asking for your vote and for you to vote
as promptly as possible. The investment manager will pay the expenses of the
solicitation. Supplementary solicitations may be made by mail, telephone,
electronic means or personal contact.

SHAREHOLDER PROPOSALS. No proposals were received from shareholders. RiverSource
funds are not required to hold regular meetings of shareholders each year.
However, meetings of shareholders are held from time to time and proposals of
shareholders that are intended to be presented at future shareholder meetings
must be submitted in writing to RiverSource funds in reasonable time prior to
the solicitation of proxies for the meeting.

DISSENTERS' RIGHT OF APPRAISAL. Under Sections 302A.471 and 302A.473 of the
Minnesota Business Corporation Act, Selling Fund shareholders are entitled to
assert dissenters' rights in connection with the Reorganization and obtain
payment of the "fair value" of their shares, provided that they comply with the
requirements of Minnesota law. A copy of the relevant provisions is attached as
Exhibit C.

Notwithstanding the provisions of Minnesota law, the SEC has taken the position
that use of state appraisal procedures by a mutual fund would be a violation of
Rule 22c-1, the forward pricing rule, under the 1940 Act. This rule states that
no mutual fund may redeem its shares other than at net asset value next computed
after receipt of a request for redemption. It is the SEC's position that Rule
22c-1 supersedes appraisal provisions in state statutes.

In the interest of ensuring equal valuation for all shareholders, dissenters'
rights will be determined in accordance with the SEC's interpretation. As a
result, if any shareholder elects to exercise dissenters' rights under Minnesota
law, the Selling Fund intends to submit this question to a court of competent
jurisdiction. In that event, a dissenting shareholder would not receive any
payment until the end of the court proceeding.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       43
<Page>


OTHER BUSINESS. The Board does not know at this time of any other business to
come before the meetings. If something does come up, the proxies will use their
best judgment to vote for you on the matter.

ADJOURNMENT. In the event that not enough votes are received by the time
scheduled for the meeting, the persons named as proxies may move for one or more
adjournments of the meeting for a period of not more than 120 days in the
aggregate to allow further solicitation of shareholders on the proposals. Any
adjournment requires the affirmative vote of a majority of the voting power of
the shares present at the meeting. The persons named as proxies will vote in
favor of adjournment those shares they are entitled to vote that have voted in
favor of the proposal. They will vote against any adjournment those shares that
have voted against the proposal. The investment manager will pay the costs of
any additional solicitation and of any adjourned meeting. A shareholder vote may
be taken on one or more of the items in this proxy statement prior to
adjournment if sufficient votes have been received.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       44
<Page>


SECTION C -- CAPITALIZATION, OWNERSHIP OF FUND SHARES AND OTHER FUND INFORMATION

REFERENCE TO THE "FUND" IN THIS SECTION IS A REFERENCE TO NEW DIMENSIONS.

This section contains the following information about the funds, their
investment manager and the independent auditors:



<Table>
<Caption>
TABLE     CONTENT
       
          (all information is shown for the last fiscal year unless noted
          otherwise)
C-1       Actual and pro forma capitalization of the Selling Fund and the Buying
          Fund
C-2       Actual and pro forma ownership of fund shares
C-3       Current management fee schedule for the Fund and other RiverSource
          funds with similar investment objectives
C-4       Fund payments made to the investment manager and its affiliates
C-5       Brokerage commissions paid to a broker-dealer affiliate
C-6       Shareholder approval of current management agreement
C-7A      Audit fees during the Fund's last two fiscal years
C-7B      Audit-related, tax and other fees during the Fund's last two fiscal
          years
</Table>



THE FUND'S INVESTMENT MANAGER AND DISTRIBUTOR. RiverSource Investments is the
investment manager for each fund. Ameriprise Financial Services, Inc., a wholly
owned subsidiary of Ameriprise Financial, is the distributor for the fund. The
address for RiverSource Investments and Ameriprise Financial Services, Inc. is
200 Ameriprise Financial Center, Minneapolis, MN 55474.

PRESIDENT AND BOARD OF DIRECTORS OF RIVERSOURCE INVESTMENTS. William F. Truscott
is President of RiverSource Investments. The following individuals are directors
of RiverSource Investments. Except as otherwise noted, each director is an
officer of RiverSource Investments, 200 Ameriprise Financial Center,
Minneapolis, MN 55474. Directors: William F. Truscott, Ward D. Armstrong and
Michelle M. Keeley.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       45
<Page>


CAPITALIZATION

The following table shows the capitalization of the Funds as of Sept. 30, 2005
and on a pro forma basis, assuming the proposed Reorganization had taken place.

TABLE C-1. ACTUAL AND PRO FORMA CAPITALIZATION OF THE SELLING FUND AND THE
BUYING FUND



<Table>
<Caption>
                                                              NET ASSET VALUE                  SHARES
FUND                                  NET ASSETS                 PER SHARE                  OUTSTANDING
                                                                                 
NEW DIMENSIONS
Class A                             $6,543,192,746                 $24.23                   269,996,693
Class B                              1,639,556,390                  22.84                    71,781,236
Class C                                 41,776,416                  22.81                     1,831,277
Class I                                 76,291,847                  24.40                     3,126,628
Class Y                              2,351,528,369                  24.38                    96,470,277

LARGE CAP EQUITY
Class A                             $1,044,944,281                  $5.24                   199,514,923
Class B                                372,956,613                   5.12                    72,818,404
Class C                                  8,898,385                   5.13                     1,734,333
Class I                                 46,831,631                   5.29                     8,852,605
Class Y                                    253,870                   5.27                        48,212

LARGE CAP EQUITY - PRO FORMA WITH NEW DIMENSIONS
Class A                             $7,588,137,027                  $5.24                 1,448,215,829
Class B                              2,012,513,003                   5.12                   393,044,261
Class C                                 50,674,801                   5.13                     9,877,884
Class I                                123,123,478                   5.29                    23,274,504
Class Y                              2,351,782,239                   5.27                   446,258,529
</Table>



OWNERSHIP OF FUND SHARES

The following table provides information on shareholders who owned more than 5%
of each Fund's outstanding shares as of Sept. 30, 2005. As of Sept. 30, 2005,
officers and directors of the Fund as a group owned less than 1% of the
outstanding shares of the Fund.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       46
<Page>


TABLE C-2. ACTUAL AND PRO FORMA OWNERSHIP OF FUND SHARES



<Table>
<Caption>
                                                                  PERCENT OF
                                                 PERCENT          SHARES HELD
                                                OF SHARES        FOLLOWING THE
FUND                      5% OWNERS                HELD         REORGANIZATION
                                                       
NEW DIMENSIONS
Class A                      (1)                    5%                 4%
Class B                     None                   --                 --
Class C                     None                   --                 --
Class I                      (2)                   98%                61%
Class Y                      (3)                   85%                85%

LARGE CAP EQUITY
Class A                      (4)                    5%                 *
Class B                     None                   --                 --
Class C                     None                   --                 --
Class I                      (5)                   98%                37%
Class Y                      (6)                   95%                 *
</Table>



(1)  Charles Schwab & Co. Inc., a brokerage firm, owns of record 5.16%.
(2)  RiverSource Portfolio Builder Moderate Aggressive Fund owns 33.05%.
     RiverSource Portfolio Builder Moderate Fund owns 20.54%. RiverSource
     Portfolio Builder Aggressive Fund owns 19.59%. RiverSource Portfolio
     Builder Total Equity Fund owns 19.20%. RiverSource Portfolio Builder
     Moderate Conservative Fund owns 5.89%.
(3)  Ameriprise Trust Company, Minneapolis, MN owns of record 85.28%.
(4)  Charles Schwab & Co. Inc., a brokerage firm, owns of record 5.47%.
(5)  RiverSource Portfolio Builder Moderate Aggressive Fund owns 33.40%.
     RiverSource Portfolio Builder Moderate Fund owns 20.69%. RiverSource
     Portfolio Builder Aggressive Fund owns 19.45%. RiverSource Portfolio
     Builder Total Equity Fund owns 19.16%. RiverSource Portfolio Builder
     Moderate Conservative Fund owns 5.65%.
(6)  Charles Schwab & Co. Inc., a brokerage firm, owns of record 80.07%. Wells
     Fargo Bank as Trustee of the Holland American Line, Minneapolis, MN owns
     15.18%.
*    Less than 1%.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       47
<Page>


The following table shows the management fee schedule for the fund and other
domestic equity funds managed by the investment manager.

TABLE C-3. CURRENT MANAGEMENT FEE SCHEDULE FOR THE FUND AND OTHER RIVERSOURCE
FUNDS WITH SIMILAR INVESTMENT OBJECTIVES



<Table>
<Caption>
                                                   MANAGEMENT FEE                                 FEE CAP OR WAIVERS(1)
RETAIL FUNDS                                 (ANNUAL RATE; IN BILLIONS)                              (IF APPLICABLE)
                                                                                            
Aggressive Growth(2),(4)              First $.5 - .89%; next $.5 - .865%; next $1 - .84%;         1.53% until 5/31/06
                                      next $1 - .815%; next $3 - .79%; over $6 - .765%

Disciplined Equity(2)                 First $1 - .60%; next $1 - .575%; next $1 - .55%;           Disciplined Equity:
Growth(2),(3)                         next $3 - .525%; next $6 - .50%; next $12 - .49%;           1.25% until 7/31/06
Large Cap Equity(2)                   over $24 - .48%                                             Large Cap Value:
Large Cap Value(2)                                                                                1.35% until 7/31/06
Mid Cap Growth(2)
New Dimensions(2),(3)

New Dimensions(2)                     First $.25 - .64%; next $.25 - .615%;                       1.49% until 7/31/06
                                      next $.25 - .59%; next $.25 - .565%;
                                      next $1 - .54%; over $2 - .515%

Diversified Equity                    First $.5 - .53%; next $.5 - .505%;
Income(2),(3)                         next $1 - .48%; next $1 - .455%;
Equity Value(2)                       next $3 - .43%; over $6 - .40%
Stock(2),(3)
Strategic Allocation(2),(3)

Dividend Opportunity(2)               First $.5 - .61%; next $.5 - .585%; next $1 - .56%;
                                      next $1 - .535%; next $3 - .51%; over $6 - .48%

Fundamental Growth(2),(6)             First $.5 - .78%; next $.5 - .78%; next $1 - .755%;         1.50% until 5/31/06
                                      next $1 - .73%; next $3 - .705%; over $6 - .68%

Fundamental Value(2),(7)              First $.5 - .73%; next $.5 - .705%;  next $1 - .68%;
Value(2),(8)                          next $1 - .655%; next $3 - .63%; over $6 - .60%

Mid Cap Value(2)                      First $1 - .70%; next $1 - .675%; next $1 - .65%;
                                      next $3 - .625%; next $6 - .60%; next $12 - .59%;
                                      over $24 - .58%

Select Value(2),(9)                   First $.5 - .78%; next $.5 - .755%; next $1 - .73%;
                                      next $1 - .705%; next $3 - .68%; over $6 - .65%

Small Cap Advantage(2),(10)           First $.25 - .74%; next $.25 - .715%;
                                      next $.25 - .69%; next $.25 - .665%;
                                      next $1 - .64%; over $2 - .615%

Large Cap Equity(2),(5)               First $.25 - .97%; next $.25 - .945%; next $.25 -           1.55% until 5/31/06
Small Cap Value(2),(11)               .92%; next $.25 - .895%; over $1 - .87%                     1.59% until 5/31/06

Small Cap Growth(2),(12)              First $.25 - .92%; next $.25 - .895%;                       1.70% until 3/31/07
                                      next $.25 - .87%; next $.25 - .845%;
                                      next $1 - .82%; over $2 - .795%

Strategy Aggressive(2),(4)            First $1 - .60%; next $1 - .575%; next $1 - .55%;
                                      next $3 - .525%; over $6 - .50%
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       48
<Page>


(1)  The information is shown for Class A shares. Fees and expenses in excess of
     the percentage shown will be waived. Fee caps for other classes of shares
     will vary slightly based on the expenses of those classes.
(2)  The fund has a PIA based on its performance compared to a Lipper index of
     comparable funds over a rolling 12-month period.
(3)  The fund is part of a master/feeder structure. Management fees are paid by
     the portfolio on behalf of the fund.
(4)  The fund has a subadvisory agreement with American Century Investment
     Management, Inc. and Turner Investment Partners, Inc.
(5)  The fund has subadvisory agreements with American Century Investment
     Management, Inc., Lord, Abbett & Co. and Wellington Management Company,
     LLP.
(6)  The fund has subadvisory agreements with Wellington Management Company, LLP
     and Goldman Sachs Asset Management L.P.
(7)  The fund has a subadvisory agreement with Davis Advisors.
(8)  The fund has a subadvisory agreement with Lord, Abbett & Co.
(9)  The fund has a subadvisory agreement with Gabelli Asset Management Company.
(10) The fund has a subadvisory agreement with Kenwood Capital Management LLC.
(11) The fund has subadvisory agreements with Royce & Associates, Inc.; Goldman
     Sachs Asset Management L.P.; Barrow, Hanley, Mewhinney & Strauss, Inc.;
     Donald Smith & Co., Inc.; and Franklin Portfolio Associates.
(12) The fund has subadvisory agreements with Essex Management Company, LCC,
     Turner Investment Partners, Inc.; MDT Advisers and UBS Global Asset
     Management (Americas) Inc.


TABLE C-4. FUND PAYMENTS TO THE INVESTMENT MANAGER AND ITS AFFILIATES*


<Table>
<Caption>
FUND                   ADMIN             DIST               IMS            SERVICE              TA            CUSTODY
                                                                                           
New Dimensions       $4,756,123       $45,964,652       $60,896,353       $2,800,648       $24,739,313       $1,042,579
</Table>



*    The Administrative Services Agreement ("Admin") is between the fund and
     Ameriprise Financial. The Agreement of Distribution ("Dist") and
     Shareholder Service Agreement ("Service") are between the fund and
     Ameriprise Financial Services, Inc. The Investment Management Services
     Agreement ("IMS") is between the fund and RiverSource Investments. The
     Transfer Agent Agreement ("TA") is between the fund and RiverSource Service
     Corporation. The Custodian Agreement ("Custody") is between the fund and
     Ameriprise Trust Company. Services under these agreements will continue to
     be provided by the same companies after the IMS Agreement is approved.


TABLE C-5. BROKERAGE COMMISSIONS PAID TO BROKER-DEALER AFFILIATES


<Table>
<Caption>
                     BROKER/               AMOUNT OF               % OF ALL
FUND                 DEALER               COMMISSIONS             COMMISSIONS
                                                         
New Dimensions       AEIS(1)               $108,435                 0.37%
</Table>


(1)  Wholly-owned subsidiary of Ameriprise Financial. The amount shown
     represents brokerage clearing fees.

TABLE C-6. DATES RELATING TO APPROVAL OF MANAGEMENT AGREEMENT

<Table>
<Caption>
                                           DATE LAST                REASON
                     DATE OF              APPROVED BY            SUBMITTED TO
FUND                CONTRACT             SHAREHOLDERS            SHAREHOLDERS
                                                        
New Dimensions      12/1/02               11/13/2002                  1
</Table>

(1)  Shareholders approved modifications to the performance incentive
     adjustment.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       49
<Page>


THE FUND'S INDEPENDENT REGISTERED PUBLIC ACCOUNTANT. The 1940 Act provides that
every registered investment company must be audited at least once each year by
independent registered public accountants selected by a majority of the
independent Board members. The Selling Fund's Board has selected KPMG LLP to be
the Fund's independent registered public accountant for the current fiscal year.
KPMG LLP, in accordance with Independence Standards Board Standard No. 1 ("ISB
No. 1"), has confirmed in writing to the Board's Joint Audit Committee that they
are independent accountants with respect to the Fund.


The independent accountants examine the financial statements for the Fund that
are set forth in the annual report to shareholders and provide other requested
non-audit and tax-related services to the Fund. The Joint Audit Committee
reviewed and discussed the audited financial statements with RiverSource
Investments and reviewed with KPMG LLP the matters required to be discussed by
SAS 61 (for example, methods used to account for significant unusual
transactions).

The Joint Audit Committee does not consider other non-audit services provided by
KPMG LLP to be incompatible with maintaining the independence of KPMG LLP in its
audits of the Fund, taking into account representations from KPMG LLP, in
accordance with ISB No. 1, regarding its independence from the Fund and its
related entities.

Representatives of KPMG LLP are expected to be present at the meeting. They will
be given the opportunity to make a statement to shareholders and are expected to
be available to respond to any questions that may be raised at the meeting.

JOINT AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES. Pursuant to the
pre-approval requirements of the Sarbanes-Oxley Act of 2002, all services to be
performed by KPMG LLP for the Fund; the Fund's investment adviser; and any
entity controlling, controlled by, or under common control with the investment
adviser that provides ongoing services to the Fund, must be pre-approved by the
Joint Audit Committee.


AUDIT FEES. During the last two fiscal years, the aggregate fees paid to KPMG
LLP for professional services rendered for the audit of the annual financial
statements or services that are normally provided in connection with statutory
and regulatory filings for the fund were as follows:


TABLE C-7A. AUDIT FEES

DURING THE FUND'S LAST TWO FISCAL YEARS



<Table>
<Caption>
FUND                      LAST FISCAL YEAR          PREVIOUS FISCAL YEAR
                                              
New Dimensions                $50,000                      $48,000
</Table>


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       50
<Page>

The following table shows aggregate fees paid by the Fund to KPMG LLP in each of
the last two fiscal years for services that are not included in Table C-7A. All
of the services performed were pre-approved by the Joint Audit Committee.

- -    AUDIT-RELATED FEES. Assurance and related services that are reasonably
     related to the performance of the audit or review

- -    TAX FEES. Tax compliance, tax consulting services related to Class I shares
     and tax work related to fund mergers and liquidations.


- -    ALL OTHER FEES. All other services rendered by KPMG LLP.


TABLE C-7B. AUDIT-RELATED, TAX AND OTHER FEES

DURING THE FUND'S LAST TWO FISCAL YEARS


<Table>
<Caption>
                     AGGREGATE AUDIT-        AGGREGATE            AGGREGATE
                       RELATED FEES          TAX FEES            OTHER FEES
- ------------------------------------------------------------------------------
                      LAST   PREVIOUS     LAST   PREVIOUS      LAST   PREVIOUS
                     FISCAL   FISCAL     FISCAL   FISCAL      FISCAL   FISCAL
FUND                  YEAR     YEAR       YEAR     YEAR        YEAR     YEAR
                                                    
New Dimensions       $2,781   $3,484     $7,100   $6,650      $3,803     $0
</Table>

AGGREGATE NON-AUDIT FEES TO NEW DIMENSIONS, RIVERSOURCE INVESTMENTS AND ITS
AFFILIATES


For the year ended Sept. 30, 2005, the aggregate non-audit fees billed for
services rendered to the Fund, to the investment manager and to any entity
controlling, controlled by or under common control with the investment manager
that provides ongoing services to the fund was $100,684. For the year ended
Sept. 30, 2004, the aggregate amount was $137,034.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       51
<Page>

                       THIS PAGE LEFT BLANK INTENTIONALLY

<Page>

EXHIBIT A

FORM OF AGREEMENT AND PLAN OF REORGANIZATION


This Agreement and Plan of Reorganization dated as of Nov. 10, 2005 (the
"Agreement") is between AXP Dimensions Series, Inc. (the "Selling Corporation"),
a Minnesota corporation, on behalf of its series, RiverSource New Dimensions
Fund (the "Selling Fund"), and AXP Growth Series, Inc. (the "Buying
Corporation"), a Minnesota corporation, on behalf of its series, RiverSource
Large Cap Equity Fund (the "Buying Fund"), and RiverSource Investments, LLC
(solely for the purposes of Section 3c and 10 of the Agreement).


In consideration of their mutual promises, the parties agree as follows:

1.   SHAREHOLDER APPROVAL. The Selling Fund will call a meeting of its
     shareholders for the purpose of approving the Agreement and the
     transactions it contemplates (the "Reorganization"). The Buying Fund agrees
     to furnish data and information, as reasonably requested, for the proxy
     statement to be furnished to shareholders of the Selling Fund.

2.   REORGANIZATION.

     a.   Plan of Reorganization. The Reorganization will be a reorganization
          within the meaning of Section 368 of the Internal Revenue Code of
          1986, as amended (the "Code"). At the Closing, the Selling Corporation
          will convey all of the assets of the Selling Fund to the Buying Fund.
          The Buying Fund will assume all liabilities of the Selling Fund. At
          the Closing, the Buying Corporation will deliver shares of the Buying
          Fund, including fractional shares, to the Selling Corporation. The
          number of shares will be determined by dividing the value of the net
          assets of shares of the Selling Fund, computed as described in
          paragraph 3(a), by the net asset value of one share of the Buying
          Fund, computed as described in paragraph 3(b). The Selling Fund will
          not pay a sales charge on the receipt of Buying Fund shares in
          exchange for the assets of the Selling Fund. In addition, the
          shareholders of the Selling Fund will not pay a sales charge on
          distribution to them of shares of the Buying Fund.

     b.   Closing and Effective Time of the Reorganization. The Reorganization
          and all related acts necessary to complete the Reorganization (the
          "Closing") will occur on the first day on which the New York Stock
          Exchange (the "NYSE") is open for business following approval of
          shareholders of the Selling Fund and receipt of all necessary
          regulatory approvals, or such later date as the parties may agree.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.1
<Page>

3.  VALUATION OF NET ASSETS.

a.  The net asset value of shares of the Selling Fund will be computed as of the
    close of regular trading on the NYSE on the day of Closing (the "Valuation
    Date") using the valuation procedures in the Buying Fund's prospectus.

b.  The net asset value per share of shares of the Buying Fund will be
    determined as of the close of regular trading on the NYSE on the Valuation
    Date, using the valuation procedures in the Buying Fund's prospectus.

c.  At the Closing, the Selling Fund will provide the Buying Fund with a copy of
    the computation showing the valuation of the net asset value per share of
    shares of the Selling Fund on the Valuation Date. The Buying Fund will
    provide the Selling Fund with a copy of the computation showing the
    determination of the net asset value per share of shares of the Buying Fund
    on the Valuation Date. Both computations will be certified by an officer of
    RiverSource Investments, LLC, the investment manager.

4.  LIQUIDATION AND DISSOLUTION OF THE SELLING FUND.

a.  As soon as practicable after the Valuation Date, the Selling Corporation
    will liquidate the Selling Fund and distribute shares of the Buying Fund to
    the Selling Fund's shareholders of record. The Buying Fund will establish
    shareholder accounts in the names of each Selling Fund shareholder,
    representing the respective pro rata number of full and fractional shares of
    the Buying Fund due to each shareholder. All issued and outstanding shares
    of the Selling Fund will simultaneously be cancelled on the books of the
    Selling Corporation. The Buying Fund or its transfer agent will establish
    shareholder accounts in accordance with instructions from the Selling
    Corporation.

b.  Immediately after the Valuation Date, the share transfer books of the
    Selling Corporation relating to the Selling Fund will be closed and no
    further transfer of shares will be made.

c.  Promptly after the distribution, the Buying Fund or its transfer agent will
    notify each shareholder of the Selling Fund of the number of shares
    distributed to the shareholder and confirm the registration in the
    shareholder's name.

d.  As promptly as practicable after the liquidation of the Selling Fund, and in
    no event later than twelve months from the date of the Closing, the Selling
    Fund will be dissolved.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.2
<Page>

5.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE BUYING CORPORATION.
     The Buying Corporation represents and warrants to the Selling Fund as
     follows:

     a.   Organization, Existence, etc. The Buying Corporation is a corporation
          duly organized, validly existing and in good standing under the laws
          of the state of Minnesota and has the power to carry on its business
          as it is now being conducted.

     b.   Registration as Investment Company. The Buying Fund is a series of the
          Buying Corporation, registered under the Investment Company Act of
          1940 (the "1940 Act") as an open-end, management investment company.

     c.   Capitalization. The Buying Corporation has authorized capital of
          10,000,000,000 shares of common stock, par value $0.01 per share. All
          of the outstanding shares have been duly authorized and are validly
          issued, fully paid and non-assessable. Since the Buying Fund is
          engaged in the continuous offering and redemption of its shares, the
          number of outstanding shares may vary daily.

     d.   Financial Statements. The audited financial statements as of the end
          of the last fiscal year, and the subsequent unaudited semi-annual
          financial statements, if any (the "Buying Fund Financial Statements"),
          fairly present the financial position of the Buying Fund, and the
          results of its operations and changes in its net assets for the
          periods shown.

     e.   Shares to be Issued Upon Reorganization. The shares to be issued in
          connection with the Reorganization will be duly authorized and, at the
          time of the Closing, will be validly issued, fully paid and
          non-assessable.

     f.   Authority Relative to the Agreement. The Buying Corporation has the
          power to enter into and carry out the obligations described in this
          Agreement. The Agreement and the transactions contemplated by it have
          been duly authorized by the Board of Directors of the Buying
          Corporation and no other proceedings by the Buying Corporation or the
          Buying Fund are necessary.

     g.   No Violation. The Buying Corporation is not in violation of its
          Articles of Incorporation or By-Laws (the "Articles") or in default in
          the performance of any material agreement to which it is a party. The
          execution of this Agreement and the completion of the transactions
          contemplated by it will not conflict with, or constitute a breach of,
          any material contract or other instrument to which the Buying Fund is
          subject. The transactions will not result in any violation of the
          provisions of the Articles or any law, administrative regulation or
          administrative or court decree applicable to the Buying Fund.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.3
<Page>

     h.   Liabilities. There are no liabilities of the Buying Fund other than:

          -    liabilities disclosed in the Buying Fund Financial Statements,

          -    liabilities incurred in the ordinary course of business
               subsequent to the date of the latest annual or semi-annual
               financial statements, or

          -    liabilities previously disclosed to the Selling Fund, none of
               which has been materially adverse to the business, assets or
               results of operation of the Buying Fund.

     i.   Litigation. There is no litigation, administrative proceeding or
          investigation before any court or governmental body currently pending
          or, to the knowledge of the Buying Fund, threatened, that would
          materially and adversely affect the Buying Fund, its financial
          condition or the conduct of its business, or that would prevent or
          hinder completion of the transactions contemplated by this Agreement.
          The Buying Fund knows of no facts that might form the basis for the
          institution of any such litigation, proceeding or investigation and
          the Buying Fund is not a party to or subject to the provisions of any
          order, decree or judgment.

     j.   Contracts. Except for contracts and agreements previously disclosed to
          the Selling Corporation, the Buying Fund is not a party to or subject
          to any material contract, debt instrument, plan, lease, franchise,
          license or permit.

     k.   Taxes. The Buying Fund has qualified as a regulated investment company
          under the Internal Revenue Code with respect to each taxable year
          since commencement of its operations and will qualify as a regulated
          investment company at all times through the Closing. As of the
          Closing, the Buying Fund will (i) have filed all federal and other tax
          returns and reports that have been required to be filed, (ii) have
          paid or provided for payment of all federal and other taxes shown to
          be due on such returns or on any assessments received, (iii) have
          adequately provided for all tax liabilities on its books, (iv) except
          as disclosed to the Selling Fund, not have had any tax deficiency or
          liability asserted against it or question with respect thereto raised,
          and (v) except as disclosed to the Selling Fund, not be under audit by
          the Internal Revenue Service or by any state or local tax authority
          for taxes in excess of those already paid.

     l.   Registration Statement. The Buying Fund will file a registration
          statement on Form N-14 (the "Registration Statement") with the
          Securities and Exchange Commission under the Securities Act of 1933
          (the "1933 Act") relating to the shares to be issued in the
          Reorganization. At the time the Registration Statement becomes
          effective, at the time of the shareholders' meeting and at the
          Closing, the Registration Statement will not contain an untrue
          statement of a material fact or omit to state a

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.4
<Page>

          material fact necessary to make the statements therein not misleading.
          However, none of the representations and warranties in this subsection
          apply to statements in, or omissions from, the Registration Statement
          made in reliance on information furnished by the Selling Fund for use
          in the Registration Statement.

6.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE SELLING CORPORATION.
     The Selling Corporation represents and warrants to the Buying Fund as
     follows:

     a.   Organization, Existence, etc. The Selling Corporation is a corporation
          duly organized, validly existing and in good standing under the laws
          of the state of Minnesota and has the power to carry on its business
          as it is now being conducted.

     b.   Registration as Investment Company. The Selling Fund is a series of
          the Selling Corporation, registered under the 1940 Act as an open-end,
          management investment company.

     c.   Capitalization. The Selling Corporation has authorized capital of
          10,000,000,000 shares of common stock, par value $0.01 per share. All
          of the outstanding shares have been duly authorized and are validly
          issued, fully paid and non-assessable. Since the Selling Fund is
          engaged in the continuous offering and redemption of its shares, the
          number of outstanding shares may vary daily.

     d.   Financial Statements. The audited financial statements as of the end
          of the last fiscal year, and the subsequent unaudited semi-annual
          financial statements, if any (the "Selling Fund Financial
          Statements"), fairly present the financial position of the Selling
          Fund, and the results of its operations and changes in its net assets
          for the periods shown.

     e.   Authority Relative to the Agreement. The Selling Corporation has the
          power to enter into and to carry out its obligations under this
          Agreement. The Agreement and the transactions contemplated by it have
          been duly authorized by the Board of Directors of the Selling
          Corporation and no other proceedings by the Selling Corporation or the
          Selling Fund are necessary.

     f.   No Violation. The Selling Corporation is not in violation of its
          Articles or in default in the performance of any material agreement to
          which it is a party. The execution of this Agreement and the
          completion of the transactions contemplated by it will not conflict
          with or constitute a breach of, any material contract to which the
          Selling Fund is subject. The transactions will not result in any
          violation of the provisions of the Articles or any law, administrative
          regulation or administrative or court decree applicable to the Selling
          Fund.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.5
<Page>

     g.   Liabilities. There are no liabilities of the Selling Fund other than:

          -    liabilities disclosed in the Selling Fund Financial Statements,

          -    liabilities incurred in the ordinary course of business
               subsequent to the date of the latest annual or semi-annual
               financial statements, or

          -    liabilities previously disclosed to the Buying Fund, none of
               which has been materially adverse to the business, assets or
               results of operation of the Selling Fund.

     h.   Litigation. There is no litigation, administrative proceeding or
          investigation before any court or governmental body currently pending
          or, to the knowledge of the Selling Fund, threatened, that would
          materially and adversely affect the Selling Fund, its financial
          condition or the conduct of its business, or that would prevent or
          hinder completion of the transactions contemplated by this Agreement.
          The Selling Fund knows of no facts that might form the basis for the
          institution of any such litigation, proceeding or investigation and is
          not a party to or subject to the provisions of any order, decree or
          judgment.

     i.   Contracts. Except for contracts and agreements previously disclosed to
          the Buying Corporation, the Selling Fund is not a party to or subject
          to any material contract, debt instrument, plan, lease, franchise,
          license or permit.

     j.   Taxes. The Selling Fund has qualified as a regulated investment
          company under the Internal Revenue Code with respect to each taxable
          year since commencement of its operations and will qualify as
          regulated investment company at all times through the Closing. As of
          the Closing, the Selling Fund will (i) have filed all federal and
          other tax returns and reports that have been required to be filed,
          (ii) have paid or provided for payment of all federal and other taxes
          shown to be due on such returns or on any assessments received, (iii)
          have adequately provided for all tax liabilities on its books, (iv)
          except as disclosed to the Buying Fund, not have had any tax
          deficiency or liability asserted against it or question with respect
          thereto raised, and (v) except as disclosed to the Buying Fund, not be
          under audit by the Internal Revenue Service or by any state or local
          tax authority for taxes in excess of those already paid.

     k.   Fund Securities. All securities listed in the schedule of investments
          of the Selling Fund as of the Closing will be owned by the Selling
          Fund free and clear of any encumbrances, except as indicated in the
          schedule.


     l.   Registration Statement. The Selling Fund will cooperate with the
          Buying Fund and will furnish information relating to the Selling
          Corporation and the Selling Fund required in the Registration
          Statement. At the time the Registration Statement becomes effective,
          at the time of the


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.6
<Page>

          shareholders' meeting and at the Closing, the Registration Statement,
          as it relates to the Selling Corporation or the Selling Fund, will not
          contain an untrue statement of a material fact or omit to state a
          material fact necessary to make the statements therein not misleading.
          However, the representations and warranties in this subsection apply
          only to statements in or omissions from the Registration Statement
          made in reliance upon information furnished by the Selling Corporation
          or the Selling Fund for use in the Registration Statement.

7.   CONDITIONS TO OBLIGATIONS OF THE BUYING CORPORATION. The obligations of the
     Buying Corporation with respect to the Reorganization are subject to the
     satisfaction of the following conditions:

     a.   Shareholder Approval. This Agreement will have been approved by the
          affirmative vote of the holders of the majority of the voting power of
          all Selling Fund shares entitled to vote.

     b.   Representations, Warranties and Agreements. The Selling Corporation
          and the Selling Fund will have complied with this Agreement and each
          of the representations and warranties in this Agreement will be true
          in all material respects as of the Closing. An officer of the Selling
          Corporation will provide a certificate to the Buying Fund confirming
          that, as of the Closing, the representations and warranties set forth
          in Section 6 are true and correct and that there have been no material
          adverse changes in the financial condition, results of operations,
          business, properties or assets of the Selling Fund since the date of
          its last financial statement, except as otherwise indicated in any
          financial statements, certified by an officer of the Selling
          Corporation, and delivered to the Buying Fund on or prior to the last
          business day before the Closing.

     c.   Regulatory Approvals.

          -    The Registration Statement referred to in Section 5(l) will be
               effective and no stop orders under the 1933 Act will have been
               issued.

          -    All necessary approvals, consents and exemptions from federal and
               state regulatory authorities will have been obtained.

     d.   Tax Opinion. The Buying Corporation will have received the opinion of
          Ropes & Gray LLP dated as of the Closing, as to the federal income tax
          consequences of the Reorganization to the Buying Fund and its
          shareholders. For purposes of rendering their opinion, Ropes & Gray
          LLP may rely, as to factual matters, upon the statements made in this
          Agreement, the proxy statement which will be distributed to the
          shareholders of the Selling Fund, and other written representations as
          an officer of the Selling Corporation will have verified as of
          Closing. The opinion of Ropes & Gray LLP will be to the effect that:
          (i) neither

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.7
<Page>

          the Selling Fund nor the Buying Fund will recognize any gain or loss
          upon the transfer of the assets of the Selling Fund to, and assumption
          of its liabilities by, the Buying Fund in exchange for shares of the
          Buying Fund and upon the distribution of the shares to the Selling
          Fund shareholders in exchange for their shares of the Selling Fund;
          (ii) the shareholders of the Selling Fund who receive shares of the
          Buying Fund in the Reorganization will not recognize any gain or loss
          on the exchange of their shares of the Selling Fund for the shares of
          the Buying Fund; (iii) the holding period and the basis of the shares
          received by the Selling Fund shareholders will be the same as the
          holding period and the basis of the shares of the Selling Fund
          surrendered in the exchange; (iv) the holding period and the basis of
          the assets acquired by the Buying Fund will be the same as the holding
          period and the basis of the assets to the Selling Fund immediately
          prior to the Reorganization.

     e.   Opinion of Counsel. The Buying Corporation will have received an
          opinion of counsel for the Selling Corporation, dated as of the
          Closing, to the effect that: (i) the Selling Corporation is a
          corporation duly organized and validly existing under the laws of the
          state of Minnesota; (ii) the Selling Fund is a series of the Selling
          Corporation, an open-end investment company registered under the 1940
          Act; (iii) this Agreement and the Reorganization have been duly
          authorized and approved by all requisite action of the Selling
          Corporation and the Selling Fund and this Agreement has been duly
          executed by, and is a valid and binding obligation of, the Selling
          Corporation.

     f.   Declaration of Dividend. The Selling Fund, prior to the Closing, has
          declared a dividend or dividends, which, together with all previous
          such dividends, shall have the effect of distributing to the Selling
          Fund shareholders (i) all of the excess of (x) the Selling Fund's
          investment income excludable from gross income under Section 103 of
          the Code over (y) the Selling Fund's deductions disallowed under
          Sections 265 and 171 of the Code, (ii) all of the Selling Fund's
          investment company taxable income as defined in Section 852 of the
          Code (in each case computed without regard to any deduction for
          dividends paid) and (iii) all of the Selling Fund's net capital gain
          realized (after reduction for any capital loss carryover), in each
          case for the current taxable year (which will end on the Closing date)
          and any preceding taxable years for which such a dividend is eligible
          to be made under Section 855 of the Code.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.8
<Page>

8.   CONDITIONS TO OBLIGATIONS OF THE SELLING CORPORATION. The obligations of
     the Selling Corporation with respect to the Reorganization are subject to
     the satisfaction of the following conditions:

     a.   Shareholder Approval. This Agreement will have been approved by the
          affirmative vote of the holders of the majority of the voting power of
          all Selling Fund shares entitled to vote.

     b.   Representations, Warranties and Agreements. The Buying Fund will have
          complied with this Agreement and each of the representations and
          warranties in this Agreement will be true in all material respects as
          of the Closing. An officer of the Buying Corporation will provide a
          certificate to the Selling Fund confirming that, as of the Closing,
          the representations and warranties set forth in Section 5 are true and
          correct and that there have been no material adverse changes in the
          financial condition, results of operations, business, properties or
          assets of the Buying Fund since the date of its last financial
          statement, except as otherwise indicated in any financial statements,
          certified by an officer of the Buying Corporation, and delivered to
          the Selling Fund on or prior to the last business day before the
          Closing.

     c.   Regulatory Approvals.

          -    The Registration Statement referred to in Section 5(l) will be
               effective and no stop orders under the 1933 Act will have been
               issued.

          -    All necessary approvals, consents and exemptions from federal and
               state regulatory authorities will have been obtained.

     d.   Tax Opinion. The Selling Corporation will have received the opinion of
          Ropes & Gray LLP dated as of the Closing, as to the federal income tax
          consequences of the Reorganization to the Selling Fund and its
          shareholders. For purposes of rendering their opinion, Ropes & Gray
          LLP may rely, as to factual matters, upon the statements made in this
          Agreement, the proxy statement which will be distributed to the
          shareholders of the Selling Fund, and other written representations as
          an officer of the Buying Corporation will have verified as of Closing.
          The opinion of Ropes & Gray LLP will be to the effect that: (i)
          neither the Selling Fund nor the Buying Fund will recognize any gain
          or loss upon the transfer of the assets of the Selling Fund to, and
          assumption of its liabilities by, the Buying Fund in exchange for
          shares of the Buying Fund and upon the distribution of the shares to
          the Selling Fund shareholders in exchange for their shares of the
          Selling Fund; (ii) the shareholders of the Selling Fund who receive
          shares of the Buying Fund in the Reorganization will not recognize any
          gain or loss on the exchange of their shares of the Selling Fund for
          the shares of the

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       A.9
<Page>

          Buying Fund; (iii) the holding period and the basis of the shares
          received by the Selling Fund shareholders will be the same as the
          holding period and the basis of the shares of the Selling Fund
          surrendered in the exchange; (iv) the holding period and the basis of
          the assets acquired by the Buying Fund will be the same as the holding
          period and the basis of the assets to the Selling Fund immediately
          prior to the Reorganization; and (v) the Buying Fund will succeed to
          and take into account the items of the Selling Fund described in
          Section 381(c) of the Code, subject to the conditions and limitations
          specified in Sections 381, 382, 383, and 384 of the Code and the
          regulations thereunder.

     e.   Opinion of Counsel. The Selling Corporation will have received the
          opinion of counsel for the Buying Corporation, dated as of the
          Closing, to the effect that: (i) the Buying Corporation is a
          corporation duly organized and validly existing under the laws of the
          state of Minnesota; (ii) the Buying Fund is a series of the Buying
          Corporation, an open-end investment company registered under the 1940
          Act; (iii) this Agreement and the Reorganization have been authorized
          and approved by all requisite action of the Buying Corporation and the
          Buying Fund and this Agreement has been duly executed by, and is a
          valid and binding obligation of, the Buying Corporation; and (iv) the
          shares to be issued in the Reorganization are duly authorized and upon
          issuance in accordance with this Agreement will be validly issued,
          fully paid and non-assessable shares of the Buying Fund.

9.   AMENDMENT; TERMINATION; NON-SURVIVAL OF COVENANTS, WARRANTIES AND
     REPRESENTATIONS.

     a.   This Agreement may be amended in writing if authorized by the
          respective Boards of Directors. The Agreement may be amended at any
          time before or after approval by the shareholders of the Selling Fund,
          but after shareholder approval, no amendment shall be made that
          substantially changes the terms of paragraphs 2 or 3.

     b.   At any time prior to the Closing, any of the parties may waive in
          writing (i) any inaccuracies in the representations and warranties
          made to it and (ii) compliance with any of the covenants or conditions
          made for its benefit. However, neither party may waive the requirement
          to obtain shareholder approval or the requirement to obtain a tax
          opinion.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      A.10
<Page>

     c.   The Selling Corporation may terminate this Agreement at any time prior
          to the Closing by notice to the Buying Corporation if a material
          condition to its performance or a material covenant of the Buying
          Corporation on behalf of the Buying Fund is not fulfilled on or before
          the date specified for its fulfillment or a material breach of this
          Agreement is made by the Buying Corporation on behalf of the Buying
          Fund and is not cured.

     d.   The Buying Corporation may terminate this Agreement at any time prior
          to the Closing by notice to the Selling Corporation if a material
          condition to its performance or a material covenant of the Selling
          Corporation on behalf of the Selling Fund is not fulfilled on or
          before the date specified for its fulfillment or a material breach of
          this Agreement is made by the Selling Corporation on behalf of the
          Selling Fund and is not cured.

     e.   This Agreement may be terminated by any party at any time prior to the
          Closing, whether before or after approval by the shareholders of the
          Selling Fund, without any liability on the part of either party or its
          respective directors, officers, or shareholders, on written notice to
          the other party, and shall be terminated without liability as of the
          close of business on Dec. 31, 2006, or a later date agreed upon by the
          parties, if the Closing is not on or prior to that date.

     f.   The representations, warranties and covenants contained in this
          Agreement, or in any document delivered in connection with this
          Agreement, will survive the Reorganization.


10.  EXPENSES. RiverSource Investments, LLC will pay all solicitation expenses
     in order to achieve shareholder approval of the Reorganization whether or
     not the Reorganization is completed and will bear the other costs of
     effecting the Reorganization.


11.  GENERAL.

     a.   Headings. The headings contained in this Agreement are for reference
          purposes only and will not affect the meaning or interpretation of
          this Agreement. Nothing in this Agreement is intended to confer upon
          any other person any rights or remedies by reason of this Agreement.

     b.   Governing Law. This Agreement will be governed by the laws of the
          state of Minnesota.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      A.11
<Page>

12.  INDEMNIFICATION.

     Each party will indemnify and hold the other and its officers and directors
     (each an "Indemnitee") harmless from and against any liability or other
     cost and expense, in connection with the defense or disposition of any
     action, suit, or other proceeding, before any court or administrative or
     investigative body in which the Indemnitee may be involved as a party, with
     respect to actions taken under this Agreement. However, no Indemnitee will
     be indemnified against any liability or expense arising by reason of
     willful misfeasance, bad faith, gross negligence or reckless disregard of
     the duties involved in the conduct of the Indemnitee's position.

     IN WITNESS WHEREOF, each of the parties has caused this Agreement to be
     signed.

     AXP Dimensions Series, Inc.
       on behalf of RiverSource New Dimensions Fund

     By
       ------------------------------------------
       Leslie L. Ogg
       Vice President

     AXP Growth Series, Inc.
      on behalf of RiverSource Large Cap Equity Fund

     By
       ------------------------------------------
       Leslie L. Ogg
       Vice President

     The undersigned is a party to this Agreement for purposes of Section 3c and
     10 only.

     RiverSource Investments, LLC

     By
       ------------------------------------------
       Paula R. Meyer

       Senior Vice President - Mutual Funds


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      A.12
<Page>

EXHIBIT B

MATTERS SUBJECT TO APPROVAL AT REGULAR MEETING OF BUYING FUND


REFERENCE TO THE "FUND" IN THIS EXHIBIT IS A REFERENCE TO LARGE CAP EQUITY.


In addition to voting on proposals to elect Board members, to amend the Articles
of Incorporation and to approve the IMS Agreement, Buying Fund shareholders will
consider the following:

APPROVE OR REJECT CHANGES IN FUNDAMENTAL INVESTMENT POLICIES.


The fund has some investment policies that are fundamental. This means the
policies can be changed only with the approval of shareholders. RiverSource
Investments recommended to the Board that certain of those policies be modified
in order to standardize the policies for all RiverSource funds and to eliminate
unnecessary limitations.


RiverSource Investments believes that increased standardization will help to
promote operational efficiencies and facilitate monitoring of compliance with
fundamental investment policies. Adoption of a new or revised policy is not
intended to change current investment techniques employed for the fund. The
Board recommends the following changes to the fund's fundamental investment
policies:

A. DIVERSIFICATION

The Board recommends that the fund's fundamental policy with respect to
diversification be revised to give the fund the maximum flexibility permitted by
the 1940 Act. The Board recommends that shareholders vote to replace the fund's
current fundamental investment policy with the following policy (additional or
revised language is underlined):

     The fund will not invest more than 5% of its total assets in securities of
     any company, government, or political subdivision thereof, except the
     limitation will not apply to investments in securities issued or guaranteed
     by the U.S. government, its agencies or instrumentalities or other
     investment companies, and except that up to 25% of the fund's total assets
     may be invested without regard to this 5% limitation.

The percentage limits in the proposed policy are required under the 1940 Act.
The amended policy makes one change from the current policy: subject to
applicable 1940 Act requirements, it would permit the fund to invest without
limit in the securities of other investment companies. Pursuant to an exemptive
order granted by the Securities and Exchange Commission (the "SEC"), the fund
may invest up to 25% of its total assets in a non-publicly offered money market
fund managed by RiverSource

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       B.1
<Page>

Investments (the "cash pool fund"). The cash pool fund is not expected to pay
investment advisory, management, or transfer agent fees, although it may do so
subject to the conditions of the SEC order and Board approval. The cash pool
fund will incur minimal costs for services, such as custodian and auditor fees.
The investment manager anticipates that making use of the cash pool fund will
benefit the fund by enhancing the efficiency of cash management and by providing
increased short-term investment opportunities. If the proposal is approved, the
cash pool fund is expected to serve as a principal option for managing the cash
positions of the fund. Future amendments to the fund's fundamental
diversification policy would continue to require shareholder approval.

B. LENDING

The Board recommends that the fund's fundamental policies with respect to
lending be replaced with the following policy:


     The Fund will not lend securities or participate in an interfund lending
     program if the total of all such loans would exceed 33 1/3% of the Fund's
     total assets except this fundamental investment policy shall not prohibit
     the Fund from purchasing money market securities, loans, loan participation
     or other debt securities, or from entering into repurchases agreements.

Currently the fund has two policies with respect to lending. One policy limits
lending of portfolio securities to 30% of net assets and the other policy limits
cash loans to 5% of total assets. It is proposed that these two policies be
superseded by the policy stated above.

The proposal is not expected to materially affect the operation of the fund.
However, the proposed policy would clarify that the fund can participate in an
interfund borrowing and lending program with other RiverSource Funds, subject to
the requirements of an SEC exemptive order. A fund may only borrow money for
temporary purposes and may not borrow for leverage or investment purposes.
Appropriate safeguards will be implemented to assure that the fund will not be
disadvantaged by making loans to affiliated funds. The proposed policy also
would confirm the fund's ability to invest in direct debt instruments such as
loans and loan participations, which are interests in amounts owed to another
party by a company, government or other borrower. These types of securities may
have additional risks beyond conventional debt securities because they may
provide less legal protection for the fund, or there may be a requirement that
the fund supply additional cash to a borrower on demand. Finally, the adoption
of the proposed investment policy will advance the goal of standardizing
investment policies.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       B.2
<Page>

C. BORROWING

The Board recommends that the fund's fundamental policy with respect to
Borrowing be replaced with the following policy:

     The fund may not borrow money, except for temporary purposes (not for
     leveraging or investment) in an amount not exceeding 33 1/3% of its total
     assets (including the amount borrowed) less liabilities (other than
     borrowings) immediately after the borrowings.


Funds typically borrow money to meet redemptions in order to avoid forced,
unplanned sales of portfolio securities. This technique allows RiverSource
Investments greater flexibility in managing the fund's cash flow. The current
policy limits borrowing to "emergency or extraordinary purposes". In order to
avoid debate over what constitutes emergency or extraordinary purposes, it is
proposed to revise the policy to reflect that the purposes, whatever the
circumstances, must be temporary. The fund may not use borrowing for leverage or
for investment purposes.

BOARD RECOMMENDATION AND VOTE REQUIRED. The Board recommends that shareholders
approve the proposed changes. Changes in fundamental policies must be approved
by the lesser of (a) a majority of the fund's outstanding shares or (b) 67% of
the shares voted at the meeting, so long as more than 50% of the shares actually
vote. If the any of the proposed changes is not approved, the fund will continue
to operate under its current policy.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       B.3
<Page>


EXHIBIT C

MINNESOTA BUSINESS CORPORATION ACT SECTIONS 302A.471 AND 302A.473

Minnesota law requires that we provide you with a copy of the state law on
dissenters' rights. Notwithstanding the provisions of the law set out below, the
SEC has taken the position that use of state appraisal procedures by a
registered mutual fund such as the Fund would be a violation of Rule 22c-1, the
forward pricing rule, under the 1940 Act. As a result, if any shareholder elects
to exercise dissenters' rights under Minnesota law, the Fund intends to submit
this question to a court of competent jurisdiction. In that event, a dissenting
shareholder would not receive any payment until the end of the court proceeding.

302A.471. RIGHTS OF DISSENTING SHAREHOLDERS

SUBDIVISION 1. ACTIONS CREATING RIGHTS. A shareholder of a corporation may
dissent from, and obtain payment for the fair value of the shareholder's shares
in the event of, any of the following corporate actions:


(a)  An amendment of the articles that materially and adversely affects the
     rights or preferences of the shares of the dissenting shareholder in that
     it:

     (1)  alters or abolishes a preferential right of the shares;

     (2)  creates, alters, or abolishes a right in respect of the redemption of
          the shares, including a provision respecting a sinking fund for the
          redemption or repurchase of the shares;

     (3)  alters or abolishes a preemptive right of the holder of the shares to
          acquire shares, securities other than shares, or rights to purchase
          shares or securities other than shares;


     (4)  excludes or limits the right of a shareholder to vote on a matter, or
          to cumulate votes, except as the right may be excluded or limited
          through the authorization or issuance of securities of an existing or
          new class or series with similar or different voting rights; except
          that an amendment to the articles of an issuing public corporation
          that provides that section 302A.671 does not apply to a control share
          acquisition does not give rise to the right to obtain payment under
          this section;


(b)  A sale, lease, transfer, or other disposition of all or substantially all
     of the property and assets of the corporation, but not including a
     transaction permitted without shareholder approval in section 302A.661,
     subdivision 1, or a disposition in dissolution described in section
     302A.725, subdivision 2, or a disposition pursuant to an order of a court,
     or a disposition for cash on terms requiring that all or substantially all
     of the net proceeds of disposition be distributed to the shareholders in
     accordance with their respective interests within one year after the date
     of disposition;

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.1
<Page>

(c)  A plan of merger, whether under this chapter or under chapter 322B, to
     which the corporation is a party, except as provided in subdivision 3, and
     except for a plan of merger adopted under section 302A.626;

(d)  A plan of exchange, whether under this chapter or under chapter 322B, to
     which the corporation is a party as the corporation whose shares will be
     acquired by the acquiring corporation, except as provided in subdivision 3;
     or

(e)  Any other corporate action taken pursuant to a shareholder vote with
     respect to which the articles, the bylaws, or a resolution approved by the
     board directs that dissenting shareholders may obtain payment for their
     shares.

SUBDIVISION 2. BENEFICIAL OWNERS.

(a)  A shareholder shall not assert dissenters' rights as to less than all of
     the shares registered in the name of the shareholder, unless the
     shareholder dissents with respect to all the shares that are beneficially
     owned by another person but registered in the name of the shareholder and
     discloses the name and address of each beneficial owner on whose behalf the
     shareholder dissents. In that event, the rights of the dissenter shall be
     determined as if the shares as to which the shareholder has dissented and
     the other shares were registered in the names of different shareholders.

(b)  The beneficial owner of shares who is not the shareholder may assert
     dissenters' rights with respect to shares held on behalf of the beneficial
     owner, and shall be treated as a dissenting shareholder under the terms of
     this section and section 302A.473, if the beneficial owner submits to the
     corporation at the time of or before the assertion of the rights a written
     consent of the shareholder.

SUBDIVISION 3. RIGHTS NOT TO APPLY.

(a)  Unless the articles, the bylaws, or a resolution approved by the board
     otherwise provide, the right to obtain payment under this section does not
     apply to a shareholder of (1) the surviving corporation in a merger with
     respect to shares of the shareholder that are not entitled to be voted on
     the merger or (2) the corporation whose shares will be acquired by the
     acquiring corporation in a plan of exchange with respect to shares of the
     shareholder that are not entitled to be voted on the plan of exchange and
     are not exchanged in the plan of exchange.

(b)  If a date is fixed according to section 302A.445, subdivision 1, for the
     determination of shareholders entitled to receive notice of and to vote on
     an action described in subdivision 1, only shareholders as of the date
     fixed, and beneficial owners as of the date fixed who hold through
     shareholders, as provided in subdivision 2, may exercise dissenters'
     rights.




               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.2
<Page>

SUBDIVISION 4. OTHER RIGHTS. The shareholders of a corporation who have a right
under this section to obtain payment for their shares do not have a right at law
or in equity to have a corporate action described in subdivision 1 set aside or
rescinded, except when the corporate action is fraudulent with regard to the
complaining shareholder or the corporation.

302A.473. PROCEDURES FOR ASSERTING DISSENTERS' RIGHTS

SUBDIVISION 1. DEFINITIONS.

(a)  For purposes of this section, the terms defined in this subdivision have
     the meanings given them.

(b)  "Corporation" means the issuer of the shares held by a dissenter before the
     corporate action referred to in section 302A.471, subdivision 1 or the
     successor by merger of that issuer.

(c)  "Fair value of the shares" means the value of the shares of a corporation
     immediately before the effective date of the corporate action referred to
     in section 302A.471, subdivision 1.

(d)  "Interest" means interest commencing five days after the effective date of
     the corporate action referred to in section 302A.471, subdivision 1, up to
     and including the date of payment, calculated at the rate provided in
     section 549.09 for interest on verdicts and judgments.

SUBDIVISION 2. NOTICE OF ACTION. If a corporation calls a shareholder meeting at
which any action described in section 302A.471, subdivision 1 is to be voted
upon, the notice of the meeting shall inform each shareholder of the right to
dissent and shall include a copy of section 302A.471 and this section and a
brief description of the procedure to be followed under these sections.

SUBDIVISION 3. NOTICE OF DISSENT. If the proposed action must be approved by the
shareholders, a shareholder who is entitled to dissent under section 302A.471
and who wishes to exercise dissenters' rights must file with the corporation
before the vote on the proposed action a written notice of intent to demand the
fair value of the shares owned by the shareholder and must not vote the shares
in favor of the proposed action.

SUBDIVISION 4. NOTICE OF PROCEDURE; DEPOSIT OF SHARES.

(a)  After the proposed action has been approved by the board and, if necessary,
     the shareholders, the corporation shall send to all shareholders who have
     complied with subdivision 3 and to all shareholders entitled to dissent if
     no shareholder vote was required, a notice that contains:

     (1)  The address to which a demand for payment and certificates of
          certificated shares must be sent in order to obtain payment and the
          date by which they must be received;

     (2)  Any restrictions on transfer of uncertificated shares that will apply
          after the demand for payment is received;

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.3
<Page>

     (3)  A form to be used to certify the date on which the shareholder, or the
          beneficial owner on whose behalf the shareholder dissents, acquired
          the shares or an interest in them and to demand payment; and

     (4)  A copy of section 302A.471 and this section and a brief description of
          the procedures to be followed under these sections.

(b)  In order to receive the fair value of the shares, a dissenting shareholder
     must demand payment and deposit certificated shares or comply with any
     restrictions on transfer of uncertificated shares within 30 days after the
     notice required by paragraph (a) was given, but the dissenter retains all
     other rights of a shareholder until the proposed action takes effect.

SUBDIVISION 5. PAYMENT; RETURN OF SHARES.

(a)  After the corporate action takes effect, or after the corporation receives
     a valid demand for payment, whichever is later, the corporation shall remit
     to each dissenting shareholder who has complied with subdivisions 3 and 4
     the amount the corporation estimates to be the fair value of the shares,
     plus interest, accompanied by:

     (1)  The corporation's closing balance sheet and statement of income for a
          fiscal year ending not more than 16 months before the effective date
          of the corporate action, together with the latest available interim
          financial statements;

     (2)  An estimate by the corporation of the fair value of the shares and a
          brief description of the method used to reach the estimate; and

     (3)  A copy of section 302A.471 and this section, and a brief description
          of the procedure to be followed in demanding supplemental payment.

(b)  The corporation may withhold the remittance described in paragraph (a) from
     a person who was not a shareholder on the date the action dissented from
     was first announced to the public or who is dissenting on behalf of a
     person who was not a beneficial owner on that date. If the dissenter has
     complied with subdivisions 3 and 4, the corporation shall forward to the
     dissenter the materials described in paragraph (a), a statement of the
     reason for withholding the remittance, and an offer to pay to the dissenter
     the amount listed in the materials if the dissenter agrees to accept that
     amount in full satisfaction. The dissenter may decline the offer and demand
     payment under subdivision 6. Failure to do so entitles the dissenter only
     to the amount offered. If the dissenter makes demand, subdivision 7 and 8
     apply.

(c)  If the corporation fails to remit payment within 60 days of the deposit of
     certificates or the imposition of transfer restrictions on uncertificated
     shares, it shall return all deposited certificates and cancel all transfer
     restrictions. However, the corporation may again give notice under
     subdivision 4 and require deposit or restrict transfer at a later time.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.4
<Page>

SUBDIVISION 6. SUPPLEMENTAL PAYMENT; DEMAND. If a dissenter believes that the
amount remitted under subdivision 5 is less than the fair value of the shares
plus interest, the dissenter may give written notice to the corporation of the
dissenter's own estimate of the fair value of the shares, plus interest, within
30 days after the corporation mails the remittance under subdivision 5, and
demand payment of the difference. Otherwise, a dissenter is entitled only to the
amount remitted by the corporation.

SUBDIVISION 7. PETITION; DETERMINATION. If the corporation receives a demand
under subdivision 6, it shall, within 60 days after receiving the demand, either
pay to the dissenter the amount demanded or agreed to by the dissenter after
discussion with the corporation or file in a court a petition requesting that
the court determine the fair value of the shares, plus interest. The petition
shall be filed in the county in which the registered office of the corporation
is located, except that a surviving foreign corporation that receives a demand
relating to the shares of a constituent domestic corporation shall file the
petition in the county in this state in which the last registered office of the
constituent corporation was located. The petition shall name as parties all
dissenters who have demanded payment under subdivision 6 and who have not
reached agreement with the corporation. The corporation shall, after filing the
petition, serve all parties with a summons and copy of the petition under the
rules of civil procedure. Nonresidents of this state may be served by registered
or certified mail or by publication as provided by law. Except as otherwise
provided, the rules of civil procedures apply to this proceeding. The
jurisdiction of the court is plenary and exclusive. The court may appoint
appraisers, with powers and authorities the court deems proper, to receive
evidence on and recommend the amount of the fair value of the shares. The court
shall determine whether the shareholder or shareholders in question have fully
complied with the requirements of this section, and shall determine the fair
value of the shares, taking into account any and all factors the court finds
relevant, computed by any method or combination of methods that the court, in
its discretion, sees fit to use, whether or not used by the corporation or by a
dissenter. The fair value of the shares as determined by the court is binding on
all shareholders, wherever located. A dissenter is entitled to judgment in cash
for the amount by which the fair value of the shares as determined by the court,
plus interest, exceeds the amount, if any, remitted under subdivision 5, but
shall not be liable to the corporation for the amount, if any, by which the
amount, if any, remitted to the dissenter under subdivision 5 exceeds the fair
value of the shares as determined by the court, plus interest.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.5
<Page>

SUBDIVISION 8. COSTS; FEES; EXPENSES.

(a)  The court shall determine the costs and expenses of a proceeding under
     subdivision 7, including the reasonable expenses and compensation of any
     appraisers appointed by the court, and shall assess those costs and
     expenses against the corporation, except that the court may assess part or
     all of those costs and expenses against a dissenter whose action in
     demanding payment under subdivision 6 is found to be arbitrary, vexatious,
     or not in good faith.

(b)  If the court finds that the corporation has failed to comply substantially
     with this section, the court may assess all fees and expenses of any
     experts or attorneys as the court deems equitable. These fees and expenses
     may also be assessed against a person who has acted arbitrarily,
     vexatiously, or not in good faith in bringing the proceeding, and may be
     awarded to a party injured by those actions.

(c)  The court may award, in its discretion, fees and expenses to an attorney
     for the dissenters out of the amount awarded to the dissenters, if any.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       C.6
<Page>

Prospectus

[RIVERSOURCE(SM) INVESTMENTS LOGO]

RIVERSOURCE(SM)
LARGE CAP EQUITY FUND

PROSPECTUS OCT. 3, 2005

- - RIVERSOURCE LARGE CAP EQUITY FUND (FORMERLY AXP(R) LARGE CAP EQUITY FUND)
  SEEKS TO PROVIDE SHAREHOLDERS WITH LONG-TERM GROWTH OF CAPITAL.

As with all mutual funds, the Securities and Exchange Commission has not
approved or disapproved these securities or passed upon the adequacy of this
prospectus. Any representation to the contrary is a criminal offense.

You may qualify for sales charge discounts on purchases of Class A shares.
Please notify your financial advisor or investment professional if you have
other accounts holding shares of RiverSource funds to determine whether you
qualify for a sales charge discount. See "Buying and Selling Shares" for more
information.

NOT FDIC INSURED - MAY LOSE VALUE - NO BANK GUARANTEE

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.1
<Page>

TABLE OF CONTENTS


THE FUND                                                            D.3
Objective                                                           D.3
Principal Investment Strategies                                     D.3
Principal Risks                                                     D.5
Past Performance                                                    D.6
Fees and Expenses                                                   D.9
Other Investment Strategies and Risks                              D.11
Fund Management and Compensation                                   D.12
BUYING AND SELLING SHARES                                          D.18
Transactions through Unaffiliated
   Financial Intermediaries                                        D.18
Valuing Fund Shares                                                D.19
Investment Options                                                 D.20
Purchasing Shares                                                  D.22
Sales Charges                                                      D.25
Exchanging/Selling Shares                                          D.31
DISTRIBUTIONS AND TAXES                                            D.36
Dividends and Capital Gain Distributions                           D.36
Reinvestments                                                      D.36
Taxes                                                              D.37
FINANCIAL HIGHLIGHTS                                               D.38


CORPORATE REORGANIZATION

On Sept. 30, 2005, Ameriprise Financial, Inc. (Ameriprise Financial) (formerly
American Express Financial Corporation) was spun off to shareholders of its
parent corporation, American Express Company (American Express), and is now a
separate public company, trading under the ticker symbol AMP. Ameriprise
Financial provides administrative services to the Fund and is the parent company
of the Fund's investment manager, RiverSource Investments, LLC; the Fund's
distributor, Ameriprise Financial Services, Inc. (formerly American Express
Financial Advisors Inc.); the Fund's transfer agent, RiverSource Service
Corporation (formerly American Express Client Service Corporation); and the
Fund's custodian, Ameriprise Trust Company (formerly American Express Trust
Company). On Oct. 1, 2005, the Fund changed its name, such that it no longer is
branded AXP(R). The Fund now bears the RiverSource(SM) brand. Ameriprise
Financial and its subsidiaries are no longer affiliated with American Express.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.2
<Page>

THE FUND

OBJECTIVE

RiverSource Large Cap Equity Fund (the Fund) seeks to provide shareholders with
long-term growth of capital. Because any investment involves risk, achieving
this objective cannot be guaranteed.

PRINCIPAL INVESTMENT STRATEGIES

Under normal market conditions, at least 80% of the Fund's net assets are
invested in equity securities of companies with a market capitalization greater
than $5 billion at the time of purchase. The Fund may invest in income-producing
equity securities, such as dividend paying stocks, convertible securities and
preferred stocks. The Fund will provide shareholders with at least 60 days'
notice of any change in the 80% policy.

In pursuit of the Fund's objective, the investment manager (RiverSource
Investments, LLC) will hold both growth and value companies and at times may
favor one more than the other based on available opportunities.

When optimizing for growth, the investment manager invests in companies it
believes to have above-average long-term growth potential, or technological
superiority, and it selects investments based, among other factors, on:

     -  Effective management.

     -  Financial strength.

     -  Competitive market or product position.

     -  Technological advantage relative to other companies.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.3
<Page>

When optimizing for value, the investment manager invests in companies that
appear to be undervalued by various measures or that may be temporarily out of
favor, but have good prospects for capital appreciation, and it selects
investments based, among other factors, on:

- -    Identifying a variety of large, well-established companies whose underlying
     fundamentals are stable, or are anticipated to become stable, or whose
     fundamentals are improving.

- -    Identifying stocks that are undervalued:

     -    because they have one or more ratios, such as price-to-earnings or
          price-to-cash flow, that are low relative to the general market, or
          have a yield that exceeds the market,

     -    because one or more of their valuation ratios are low relative to
          historical levels for the stock,

     -    because one or more of their valuation ratios or other financial
          measures make that stock attractive relative to its peers, or

     -    because they are undervalued relative to their intrinsic value, as
          identified by the investment manager.

In evaluating whether to sell a security, the investment manager considers
factors including, among others whether:

- -    The security is overvalued relative to other potential investments.

- -    The security has reached the investment manager's price objective.

- -    The company has met the investment manager's earnings and/or growth
     expectations.

- -    Potential losses, due to factors such as a market down-turn, can be
     minimized.

- -    A more attractive opportunity has been identified.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.4
<Page>

PRINCIPAL RISKS

Please remember that with any mutual fund investment you may lose money.
Principal risks associated with an investment in the Fund include:

ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance
therefore will reflect in part the ability of the portfolio managers to make
investment decisions that are suited to achieving the Fund's investment
objective. Due to its active management, the Fund could underperform other
mutual funds with similar investment objectives.

ISSUER RISK. An issuer may perform poorly, and therefore, the value of its
stocks and bonds may decline. Poor performance may be caused by poor management
decisions, competitive pressures, breakthroughs in technology, reliance on
suppliers, labor problems or shortages, corporate restructurings, fraudulent
disclosures, or other factors.

MARKET RISK. The market value of securities may fall or fail to rise. Market
risk may affect a single issuer, sector of the economy, industry, or the market
as a whole. The market value of securities may fluctuate, sometimes rapidly and
unpredictably. This risk is generally greater for small and mid-sized companies,
which tend to be more vulnerable to adverse developments. In addition, focus on
a particular style, for example, investment in growth or value securities, may
cause the Fund to underperform other mutual funds if that style falls out of
favor with the market.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.5
<Page>

PAST PERFORMANCE

The following bar chart and table provide some illustration of the risks of
investing in the Fund by showing, respectively:

- -    how the Fund's performance has varied for each full calendar year shown on
     the bar chart, and

- -    how the Fund's average annual total returns compare to recognized indexes
     shown on the table.

Both the bar chart and the table assume that all distributions have been
reinvested. The performance of different classes varies because of differences
in sales charges and other fees and expenses. How the Fund has performed in the
past (before and after taxes) does not indicate how the Fund will perform in the
future. Performance reflects any fee waivers/expense caps in effect for the
periods reported. In the absence of such fee waivers/expense caps, performance
would have been lower. See "Fees and Expenses" for any current fee
waivers/expense caps.

BAR CHART. Class A share information is shown in the bar chart; the sales charge
for Class A shares is not reflected in the bar chart.

TABLE. The table shows total returns from hypothetical investments in Class A,
Class B, Class C and Class Y shares of the Fund. These returns are compared to
the indexes shown for the same periods. For purposes of the performance
calculation in the table we assumed:

- -    the maximum sales charge for Class A shares,

- -    sales at the end of the period and deduction of the applicable contingent
     deferred sales charge (CDSC) for Class B and Class C shares,

- -    no sales charge for Class Y shares, and

- -    no adjustments for taxes paid by an investor on the reinvested income and
     capital gains.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.6
<Page>

AFTER-TAX RETURNS

After-tax returns are shown only for Class A shares. After-tax returns for the
other classes will vary. After-tax returns are calculated using the highest
historical individual federal marginal income tax rate and do not reflect the
impact of state and local taxes. Actual after-tax returns will depend on your
tax situation and most likely will differ from the returns shown in the table.
If you hold your shares in a tax-deferred account, such as a 401(k) plan or an
IRA, the after-tax returns do not apply to you since you will not incur taxes
until you begin to withdraw from your account.

The return after taxes on distributions for a period may be the same as the
return before taxes for the same period if there were no distributions or if the
distributions were small. The return after taxes on distributions and sale of
Fund shares for a period may be greater than the return before taxes for the
same period if there was a tax loss realized on sale of Fund shares. The benefit
of the tax loss (since it can be used to offset other gains) may result in a
higher return.

[CHART]

                            CLASS A SHARE PERFORMANCE
                            (BASED ON CALENDAR YEARS)

<Table>
       
+27.57    +5.52
2003      2004
</Table>

During the periods shown in the bar chart, the highest return for a calendar
quarter was +16.15% (quarter ended June 30, 2003) and the lowest return for a
calendar quarter was -4.93% (quarter ended Sept. 30, 2004).

The 5.75% sales charge applicable to Class A shares of the Fund is not reflected
in the bar chart; if reflected, returns would be lower than those shown. The
performance of other classes may vary from that shown because of differences in
expenses.

The Fund's Class A year-to-date return at June 30, 2005 was +1.59%.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.7
<Page>

AVERAGE ANNUAL TOTAL RETURNS (FOR PERIODS ENDED DEC. 31, 2004)

<Table>
<Caption>
                                                                        SINCE
                                                         1 YEAR       INCEPTION
                                                                
RiverSource Large Cap Equity:
  Class A
     Return before taxes                                  -0.55%      +0.02%(a)
     Return after taxes on distributions                  -1.55%      -0.55%(a)
     Return after taxes on distributions
     and sale of fund shares                              -0.29%      -0.29%(a)
  Class B
     Return before taxes                                  -0.27%      -0.09%(a)
  Class C
     Return before taxes                                  +3.72%      +1.40%(a)
  Class Y
     Return before taxes                                  +5.63%      +2.32%(a)
Russell 1000(R)Index
(reflects no deduction for fees, expenses or taxes)      +11.40%      +4.39%(b)
Lipper Large-Cap Core Funds Index                         +8.29%      +2.27%(b)
</Table>

(a) Inception date is March 28, 2002.
(b) Measurement period started April 1, 2002.

The Russell 1000(R) Index, an unmanaged index, measures the performance of the
1,000 largest companies in the Russell 3000 Index, and represents approximately
92% of the total market capitalization of the Russell 3000 Index.

The Lipper Large-Cap Core Funds Index includes the 30 largest large-cap core
funds tracked by Lipper Inc. The index's returns include net reinvested
dividends. The Fund's performance is currently measured against this index for
purposes of determining the performance incentive adjustment. See "Fund
Management and Compensation" for more information.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.8
<Page>

FEES AND EXPENSES

Fund investors pay various expenses. The table below describes the fees and
expenses that you may pay if you buy and hold shares of the Fund. Expenses are
based on the Fund's most recent fiscal year, adjusted to reflect current fees.

SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

<Table>
<Caption>
                                                             CLASS A    CLASS B    CLASS C    CLASS Y
                                                                                  
Maximum sales charge (load) imposed on purchases(a)
(as a percentage of offering price)                           5.75%       none      none        none

Maximum deferred sales charge (load) imposed on sales
(as a percentage of offering price at time of purchase)       none(b)      5%        1%         none
</Table>

ANNUAL FUND OPERATING EXPENSES
(EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

<Table>
<Caption>
AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:    CLASS A   CLASS B   CLASS C   CLASS Y
                                                                  
Management fees(c)                               0.57%     0.57%     0.57%     0.57%
Distribution (12b-1) fees                        0.25%     1.00%     1.00%     0.00%
Other expenses(d)                                0.36%     0.38%     0.38%     0.40%
Total                                            1.18%     1.95%     1.95%     0.97%
</Table>

(a)  This charge may be reduced depending on the value of your total investments
     in RiverSource funds. See "Sales Charges."

(b)  For Class A purchases over $1,000,000 on which no sales charge is assessed,
     a 1% sales charge may apply if you sell your shares within one year after
     purchase.

(c)  Includes the impact of a performance incentive adjustment fee that
     decreased the management fee by 0.02% for the most recent fiscal year. The
     index against which the Fund's performance is measured for purposes of
     determining the performance incentive adjustment is the Lipper Large-Cap
     Core Funds Index. See "Fund Management and Compensation" for more
     information.

(d)  Other expenses include an administrative services fee, a transfer agency
     fee, a custody fee and other nonadvisory expenses and, for Class Y shares,
     a shareholder service fee.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       D.9
<Page>

EXAMPLES

These examples are intended to help you compare the cost of investing in the
Fund with the cost of investing in other mutual funds.

These examples assume that you invest $10,000 in the Fund for the time periods
indicated and then redeem all of your shares at the end of those periods. These
examples also assume that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

<Table>
<Caption>
                                  1 YEAR     3 YEARS     5 YEARS     10 YEARS
                                                         
Class A(a)                        $688       $  928      $1,188      $1,929
Class B                           $698(b)    $1,013(b)   $1,253(b)   $2,079(c)
Class C                           $298(b)    $  613      $1,053      $2,280
Class Y                           $ 99       $  309      $  537      $1,194
</Table>

(a)  Includes a 5.75% sales charge.
(b)  Includes the applicable CDSC.
(c)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

You would pay the following expenses if you did not redeem your shares:

<Table>
<Caption>
                                  1 YEAR     3 YEARS     5 YEARS   10 YEARS
                                                        
Class A(a)                         $688       $928       $1,188     $1,929
Class B                            $198       $613       $1,053     $2,079(b)
Class C                            $198       $613       $1,053     $2,280
Class Y                            $ 99       $309       $  537     $1,194
</Table>

(a)  Includes a 5.75% sales charge.
(b)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.10
<Page>

OTHER INVESTMENT STRATEGIES AND RISKS

OTHER INVESTMENT STRATEGIES. In addition to the principal investment strategies
previously described, the Fund may invest in other securities and may use other
investment strategies that are not principal investment strategies.
Additionally, the Fund may use derivatives (financial instruments where the
value depends upon, or is derived from, the value of something else) such as
futures, options and forward contracts, to produce incremental earnings, to
hedge existing positions or to increase flexibility. Just as with securities in
which the Fund invests directly, derivatives are subject to a number of risks,
including market, liquidity, interest rate and credit risk. In addition, a
relatively small price movement in the underlying security, currency or index
may result in a substantial gain or loss for the Fund using derivatives. Even
though the Fund's policies permit the use of derivatives in this manner, the
portfolio managers are not required to use derivatives. For more information on
strategies and holdings, and the risks of such strategies, including other
derivative instruments that the Fund may use, see the Fund's Statement of
Additional Information (SAI) and its annual and semiannual reports.

UNUSUAL MARKET CONDITIONS. During unusual market conditions, the Fund may
temporarily invest more of its assets in money market securities than during
normal market conditions. Although investing in these securities would serve
primarily to avoid losses, this type of investing also could prevent the Fund
from achieving its investment objective. During these times, the portfolio
managers may make frequent securities trades that could result in increased
fees, expenses and taxes, and decreased performance.

PORTFOLIO TURNOVER. Trading of securities may produce capital gains, which are
taxable to shareholders when distributed. Active trading may also increase the
amount of commissions or mark-ups paid to broker-dealers that the Fund pays when
it buys and sells securities. The Fund's historical portfolio turnover rate,
which measures how frequently the Fund buys and sells investments, is shown in
the "Financial Highlights."

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.11
<Page>

SECURITIES TRANSACTION COMMISSIONS. Securities transactions involve the payment
by the Fund of brokerage commissions to broker-dealers, on occasion as
compensation for research or brokerage services (commonly referred to as "soft
dollars"), as the portfolio managers buy and sell securities for the Fund in
pursuit of its objective. A description of the policies governing the Fund's
securities transactions and the dollar value of brokerage commissions paid by
the Fund are set forth in the SAI. The brokerage commissions set forth in the
SAI do not include implied commissions or mark-ups (implied commissions) paid by
the Fund for principal transactions (transactions made directly with a dealer or
other counterparty), including most fixed income securities and certain
derivatives. In addition, brokerage commissions do not reflect other elements of
transaction costs, including the extent to which the Fund's purchase and sale
transactions may cause the market to move and change the market price for an
investment.

Although brokerage commissions and implied commissions are not reflected in the
expense table under "Fees and Expenses," they are reflected in the total return
of the Fund.

DIRECTED BROKERAGE. The Fund's Board of Directors (Board) has adopted a policy
prohibiting the investment manager, or any subadviser, from considering sales of
shares of the Fund as a factor in the selection of broker-dealers through which
to execute securities transactions.

Additional information regarding securities transactions can be found in the
SAI.

FUND MANAGEMENT AND COMPENSATION

INVESTMENT MANAGER

RiverSource Investments, LLC (the investment manager or RiverSource
Investments), 200 Ameriprise Financial Center, Minneapolis, Minnesota 55474, is
the investment manager to the RiverSource funds, and is a wholly owned
subsidiary of Ameriprise Financial, Inc. (Ameriprise Financial). Ameriprise
Financial is a financial planning and financial services company that has been
offering solutions for clients' asset accumulation, income management and
protection needs for more than 110 years. In addition to managing investments
for all of the RiverSource funds, RiverSource Investments manages investments
for itself and its affiliates. For institutional clients, RiverSource
Investments and its affiliates provide investment management and related
services, such as separate account asset management, institutional trust and
custody, and employee benefit plan administration, as well as other investment
products. For all of its clients, RiverSource Investments seeks to allocate
investment opportunities in an equitable manner over time. See the SAI for more
information.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.12
<Page>

The Fund pays RiverSource Investments a fee for managing its assets. Under the
Investment Management Services Agreement (Agreement), the fee for the most
recent fiscal year was 0.57% of the Fund's average daily net assets, including
an adjustment under the terms of a performance incentive arrangement. The
adjustment is computed by comparing the Fund's performance to the performance of
an index of comparable funds published by Lipper Inc. The index against which
the Fund's performance is currently measured for purposes of the performance
incentive adjustment is the Lipper Large-Cap Core Funds Index. In certain
circumstances, the Fund's Board may approve a change in the index. The maximum
adjustment (increase or decrease) is 0.12% of the Fund's average net assets on
an annual basis. Under the Agreement, the Fund also pays taxes, brokerage
commissions, and nonadvisory expenses. A discussion regarding the basis for the
Board approving the Agreement is available in the Fund's most recent shareholder
report.

PORTFOLIO MANAGER(S). The portfolio managers responsible for the day-to-day
management of the Fund are:

Robert Ewing, CFA, Portfolio Manager

- -    Managed the Fund since 2004.

- -    Joined RiverSource Investments (previously American Express Financial
     Corporation (AEFC)) in 2002.

- -    Prior to that, Analyst and Portfolio Manager at Fidelity Investments from
     1990 to 2002.

- -    Began investment career in 1988.

- -    BS, Boston College Carroll School of Management.

Nick Thakore, Portfolio Manager

- -    Managed the Fund since 2004.

- -    Joined RiverSource Investments (previously AEFC) in 2002.

- -    Prior to that, Analyst and Portfolio Manager at Fidelity Investments from
     1993 to 2002.

- -    Began investment career in 1993.

- -    MBA, Wharton School at University of Pennsylvania.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.13
<Page>

Mr. Thakore provides direct day-to-day management for approximately one-third of
the portfolio optimizing for growth. Mr. Ewing provides direct day-to-day
management for approximately one-third of the portfolio optimizing for value.
Messrs. Ewing and Thakore coordinate day-to-day management of the remainder of
the portfolio, allocating approximately one-third of the portfolio among a team
of research analysts who select investments in their allocations based on the
sectors that they cover. These allocations are generally consistent with the
sector weightings of the S&P 500 Index, an unmanaged index of common stocks, but
allocations may vary.

The SAI provides additional information about portfolio manager compensation,
management of other accounts and ownership of shares in the Fund.

ADDITIONAL SERVICES AND COMPENSATION

As described above, RiverSource Investments receives compensation for acting as
the Fund's investment manager. RiverSource Investments and its affiliates also
receive compensation for providing other services to the Fund.

ADMINISTRATION SERVICES. Ameriprise Financial, 200 Ameriprise Financial Center,
Minneapolis, Minnesota 55474, provides or compensates others to provide
administrative services to the RiverSource funds. These services include
administrative, accounting, treasury, and other services. Fees paid by the Fund
for these services are included under "Other expenses" in the expense table
under "Fees and Expenses."

CUSTODY SERVICES. Ameriprise Trust Company, 200 Ameriprise Financial Center,
Minneapolis, Minnesota 55474 (the custodian or Ameriprise Trust Company),
provides custody services to all but a limited number of the RiverSource funds,
for which U.S. Bank National Association provides custody services. In addition,
Ameriprise Trust Company is paid for certain transaction fees and out-of-pocket
expenses incurred while providing services to the funds. Fees paid by the Fund
for these services are included under "Other expenses" in the expense table
under "Fees and Expenses."

DISTRIBUTION SERVICES. Ameriprise Financial Services, Inc., 70100 Ameriprise
Financial Center, Minneapolis, Minnesota 55474 (the distributor or Ameriprise
Financial Services), provides underwriting and distribution services to the
RiverSource funds. Under the Distribution Agreement and related distribution and
shareholder servicing plan(s), the distributor receives distribution and
shareholder servicing fees. The distributor pays a portion of these fees to
financial advisors and retains a portion of these fees to support its
distribution and shareholder servicing activity. For third party sales, the
distributor re-allows a portion of these fees to the financial intermediaries
that sell Fund shares and provide services to shareholders, and retains a
portion of these fees to support its distribution and shareholder servicing
activity. Fees paid by the Fund for

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.14
<Page>

these services are set forth under "Distribution (12b-1) fees" in the expense
table under "Fees and Expenses." More information on how these fees are used is
set forth under "Investment Options" and in the SAI. The distributor also
administers any sales charges paid by an investor at the time of purchase or at
the time of sale (deferred sales charge). See "Shareholder Fees (fees paid
directly from your investment)" under "Fees and Expenses" for the scheduled
sales charge of each share class. See "Buying and Selling Shares" for variations
in the scheduled sales charges, and for how these sales charges are used by the
distributor. See "Other Investment Strategies and Risks" for Fund policy
regarding directed brokerage.

TRANSFER AGENCY SERVICES. RiverSource Service Corporation, 70100 Ameriprise
Financial Center, Minneapolis, Minnesota 55474 (the transfer agent or
RiverSource Service Corporation), provides or compensates others to provide
transfer agency services to the RiverSource funds. The RiverSource funds pay the
transfer agent a fee, which varies by share class, as set forth in the SAI and
reimburses the transfer agent for its out-of-pocket expenses incurred while
providing these transfer agency services to the funds. Fees paid by the Fund for
these services are included under "Other expenses" in the expense table under
"Fees and Expenses." RiverSource funds are primarily sold through Ameriprise
Financial Services which is allocated a portion of these fees for providing
services to Fund shareholders. RiverSource Service Corporation may also pay a
portion of these fees to other financial intermediaries that provide
sub-recordkeeping and other services to Fund shareholders.

The SAI provides additional information about the services provided and the fee
schedules for the agreements set forth above.

PAYMENTS TO FINANCIAL INTERMEDIARIES

RiverSource Investments and its affiliates may make additional cash payments out
of their own resources to financial intermediaries, such as broker-dealers,
banks, qualified plan administrators and recordkeepers, or other institutions,
including inter-company allocation of resources to affiliated broker-dealers
such as Ameriprise Financial Services (financial intermediaries) in connection
with the sale of shares of the Fund and/or the provision of services to the Fund
or its shareholders. These payments may create an incentive for the financial
intermediary, its employees or registered representatives to recommend or sell
shares of the Fund to its customers. These payments and inter-company
allocations are in addition to any 12b-1 distribution and/or shareholder service
fees or other amounts paid by the Fund under distribution or shareholder
servicing plans, or paid by the Fund for shareholder account maintenance,
sub-accounting or recordkeeping services provided directly by the financial
intermediary providing such services. In exchange for these cash payments and

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.15
<Page>

inter-company allocations, RiverSource Investments and its affiliates may
receive preferred access to registered representatives of a financial
intermediary (for example, the ability to make presentations in branch offices
or at conferences) or preferred access to customers of the financial
intermediary (for example, the ability to advertise or directly interact with
the financial intermediary's customers in order to sell the Fund). These
arrangements are sometimes referred to as "revenue sharing payments." In some
cases, these arrangements may create an incentive for a financial intermediary
or its representatives to recommend or sell shares of a fund and may create a
conflict of interest between a financial intermediary's financial interest and
its duties to its customers. Please contact the financial intermediary through
which you are purchasing shares of the Fund for details about any payments it
may receive in connection with the sale of Fund shares or the provision of
services to the Fund.

These payments and inter-company allocations are usually calculated based on a
percentage of fund sales, and/or as a percentage of fund assets attributable to
a particular financial intermediary. These payments may also be negotiated based
on other criteria or factors including, but not limited to, the financial
intermediary's affiliation with the investment manager, its reputation in the
industry, its ability to attract and retain assets, its access to target
markets, its customer relationships and the scope and quality of services it
provides. The amount of payment or inter-company allocation may vary by
financial intermediary and by type of sale (e.g. purchases of different share
classes or purchases of the Fund through a qualified plan or through a wrap
program) and may be significant.

From time to time, RiverSource Investments and its affiliates may make other
payments, including non-cash compensation, to financial intermediaries to the
extent permitted by law, including providing non-cash compensation to financial
intermediaries or their representatives in the form of gifts of nominal value,
occasional meals, tickets, or other entertainment, support for due diligence
trips, training and educational meetings, or conference sponsorships, support
for recognition programs, and other forms of non-cash compensation permissible
under regulations to which these financial intermediaries and their
representatives are subject.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.16
<Page>

ADDITIONAL MANAGEMENT INFORMATION

MANAGER OF MANAGER EXEMPTION. The Fund operates under an order from the
Securities and Exchange Commission that permits RiverSource Investments, subject
to the approval of the Board, to appoint a subadviser or change the terms of a
subadvisory agreement for the Fund without first obtaining shareholder approval.
The order permits the Fund to add or change unaffiliated subadvisers or the fees
paid to subadvisers from time to time without the expense and delays associated
with obtaining shareholder approval of the change.

AFFILIATED FUNDS-OF-FUNDS. RiverSource Investments also serves as investment
manager to the RiverSource Portfolio Builder Funds (Portfolio Builder Funds), a
group of six funds-of-funds that provide asset-allocation services to
shareholders by investing in shares of other RiverSource funds, including the
Fund. The Fund may experience relatively large purchases or redemptions from the
Portfolio Builder Funds. Although RiverSource Investments seeks to minimize the
impact of these transactions by structuring them over a reasonable period of
time, the Fund may experience increased expenses as it buys and sells securities
to manage transactions for the Portfolio Builder Funds. In addition, because the
Portfolio Builder Funds may own a substantial portion of the Fund, a redemption
by the Portfolio Builder Funds could cause the Fund's expense ratio to increase
as the Fund's fixed costs would be spread over a smaller asset base. RiverSource
Investments monitors expense levels and is committed to offering funds that are
competitively priced. RiverSource Investments will report to the Fund's Board on
the steps it has taken to manage any potential conflicts.

FUND HOLDINGS DISCLOSURE. The Fund's Board has adopted policies and procedures
that govern the timing and circumstances of disclosure to shareholders and third
parties of information regarding the securities owned by the Fund. A description
of these policies and procedures is included in the Fund's SAI.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.17
<Page>

BUYING AND SELLING SHARES

TRANSACTIONS THROUGH UNAFFILIATED FINANCIAL INTERMEDIARIES

Where authorized by the distributor, shares of the Fund may be available through
certain 401(k) or other qualified plans, banks, broker-dealers or other
institutions (financial intermediaries). These financial intermediaries may
charge you additional fees for the services they provide and they may have
different policies not described in this prospectus. Some policy differences may
include different minimum investment amounts, exchange privileges, fund choices
and cutoff times for investments. Additionally, recordkeeping, transaction
processing and payments of distributions relating to your account may be
performed by the financial intermediaries or their representatives through whom
shares are held. Since the Fund may not have a record of your transactions, you
should always contact the financial intermediary through whom you purchased the
Fund to make changes to or give instructions concerning your account or to
obtain information about your account. The Fund and the distributor are not
responsible for the failure of one of these financial intermediaries to carry
out its obligations to its customers.

AVAILABILITY AND TRANSFERABILITY OF FUND SHARES. Please consult your investment
professional or financial intermediary to determine availability of the Fund.
Currently, RiverSource funds may be purchased or sold through affiliated
broker-dealers of RiverSource Investments, including Ameriprise Financial
Services and Securities America, Inc. (Securities America), and through a
limited number of unaffiliated institutions. If you set up an account at another
financial intermediary, you will not be able to transfer RiverSource fund
holdings to that account unless that institution has obtained a selling
agreement with the distributor of the RiverSource funds. If you set up an
account with an unaffiliated financial intermediary that does not have, and is
unable to obtain, such a selling agreement, you must either maintain your
position with Ameriprise Financial Services or Securities America, find another
financial intermediary with such a selling agreement, or sell your shares,
paying any applicable deferred sales charge. Please be aware that transactions
in taxable accounts would generate a taxable event and may result in an
increased income tax liability.

For more information, please call RiverSource Service Corporation at
(888) 791-3380.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.18
<Page>

The public offering price for Class A shares of the Fund is the net asset value
(NAV) plus a sales charge, and for Class B, C, and Y shares, the NAV. Orders in
good form are priced at the NAV next determined after you place your order. Good
form or good order means that your instructions have been received in the form
required by the distributor. This may include, for example, providing the fund
name and account number, the amount of the transaction and all required
signatures. For more information, refer to the sections on "Purchasing Shares"
and "Exchanging/Selling Shares," or contact your financial advisor or investment
professional. If you buy or sell shares through an authorized financial
intermediary, consult that firm to determine its procedures for accepting and
processing orders. The financial intermediary may charge a fee for its services.

VALUING FUND SHARES

The NAV is the value of a single share of the Fund. The NAV is determined by
dividing the value of the Fund's assets, minus any liabilities, by the number of
shares outstanding. The NAV is calculated as of the close of business on the New
York Stock Exchange (NYSE), normally 4:00 p.m. Eastern time, on each day that
the NYSE is open. The Fund's securities are valued primarily on the basis of
market quotations obtained from outside pricing services approved and monitored
under procedures adopted by the Board. Certain short-term securities with
maturities of 60 days or less are valued at amortized cost.

When reliable market quotations are not readily available, securities are priced
at fair value based on procedures adopted by the Board. These procedures are
also used when the value of a security held by the Fund is materially affected
by events that occur after the close of the primary market on which the security
is traded but prior to the time as of which the Fund's NAV is determined.
Valuing securities at fair value involves reliance on judgment. The fair value
of a security is likely to differ from any available quoted or published price.

Foreign investments are valued in U.S. dollars. Some of the Fund's securities
may be listed on foreign exchanges that trade on weekends or other days when the
Fund does not price its shares. In that event, the NAV of the Fund's shares may
change on days when shareholders will not be able to purchase or sell the Fund's
shares.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.19
<Page>

INVESTMENT OPTIONS

1.   CLASS A shares are sold to the public with a sales charge at the time of
     purchase and an annual distribution and shareholder servicing (12b-1) fee
     of 0.25%.

2.   CLASS B shares are sold to the public with a contingent deferred sales
     charge (CDSC) and an annual distribution and shareholder servicing (12b-1)
     fee of 1.00%.

3.   CLASS C shares are sold to the public without a sales charge at the time of
     purchase and with an annual distribution and shareholder servicing (12b-1)
     fee of 1.00%. Class C shares redeemed within than one year after purchase
     may be subject to a CDSC.

4.   CLASS Y shares are sold to qualifying institutional investors without a
     sales charge or distribution fee, but with a separate shareholder servicing
     fee of 0.10%. Please see the SAI for information on eligibility
     requirements to purchase Class Y shares.

The distribution and shareholder servicing fees for Class A, Class B and Class C
shares are subject to the requirements of Rule 12b-1 under the Investment
Company Act of 1940, as amended, and are used to reimburse the distributor for
certain expenses it incurs in connection with distributing the Fund's shares and
providing services to Fund shareholders. These expenses include payment of
distribution and shareholder servicing fees to financial intermediaries that
sell shares of the Fund. Financial intermediaries receive shareholder servicing
fees equal to 0.25% of the average daily net assets of Class A, Class B and
Class C shares sold and held through them. For Class A and Class B shares, the
distributor begins to pay these fees immediately after purchase. For Class C
shares, the distributor begins to pay these fees one year after purchase.
Financial intermediaries also receive distribution fees equal to 0.75% of the
average daily net assets of Class C shares sold and held through them, which the
distributor begins to pay one year after purchase. For Class B shares, the
Fund's distributor retains the 0.75% distribution fee in order to finance the
payment of sales commissions to financial intermediaries that sell Class B
shares, and to pay for other distribution related expenses. Financial
intermediaries may compensate their financial advisors and investment
professionals with the shareholder servicing and distribution fees paid to them
by the distributor.

The shareholder servicing fees for Class Y shares are used to reimburse the
distributor for providing services and assistance to shareholders regarding
ownership of their shares or their accounts.

The Fund also offers an additional class of shares, Class I, exclusively to
certain institutional investors. Class I shares are made available through a
separate prospectus supplement provided to investors eligible to purchase the
shares.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.20
<Page>

INVESTMENT OPTIONS SUMMARY

The Fund offers different classes of shares. There are differences among the
fees and expenses for each class. Not everyone is eligible to buy every class.
After determining which classes you are eligible to buy, decide which class best
suits your needs. Your financial advisor or investment professional can help you
with this decision.

The following table shows the key features of each class:

<Table>
<Caption>
                              CLASS A                 CLASS B                 CLASS C                   CLASS Y
- -----------------------------------------------------------------------------------------------------------------------------
                                                                                            
AVAILABILITY                  Available to all        Available to all        Available to all          Limited to qualifying
                              investors.              investors.              investors.                institutional
                                                                                                        investors.

INITIAL SALES CHARGE          Yes. Payable at time    No. Entire purchase     No. Entire purchase       No. Entire purchase
                              of purchase. Lower      price is invested in    price is invested in      price is invested in
                              sales charge for        shares of the Fund.     shares of the Fund.       shares of the Fund.
                              larger investments.

DEFERRED SALES CHARGE         On purchases over       Maximum 5% CDSC         1% CDSC may apply if      None.
                              $1,000,000, 1% CDSC     during the first year   you sell your shares
                              may apply if you sell   decreasing to 0%        within one year after
                              your shares within      after six years.        purchase.
                              one year after
                              purchase.

12b-1 DISTRIBUTION FEE        Yes.%                   Yes.                    Yes.                      Yes.
AND/OR SHAREHOLDER SERVICE    0.25                    1.00%                   1.00%                     0.10%
FEE*

CONVERSION TO CLASS A         N/A                     Yes, automatically in   No.                       No.
                                                      ninth year of
                                                      ownership.
</Table>

*    The Fund has adopted a plan under Rule 12b-1 of the Investment Company Act
     of 1940, as amended, that allows it to pay distribution and shareholder
     servicing-related expenses for the sale of Class A, Class B and Class C
     shares. The Fund has also adopted a separate shareholder servicing plan to
     pay for servicing-related expenses related to Class Y shares. Because these
     fees are paid out of the Fund's assets on an on-going basis, over time,
     these fees will increase the cost of your investment and may cost you more
     than paying other types of distribution (sales) or servicing charges.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.21
<Page>

SHOULD YOU PURCHASE CLASS A, CLASS B OR CLASS C SHARES?

If your investments in RiverSource funds total $100,000 or more, Class A shares
may be the better option because the sales charge is reduced for larger
purchases. If you qualify for a waiver of the sales charge, Class A shares will
be the best option.

If you invest less than $100,000, consider how long you plan to hold your
shares. Class B shares have a higher annual distribution fee than Class A shares
and a CDSC for six years. Class B shares convert to Class A shares in the ninth
year of ownership. Class B shares purchased through reinvested dividends and
distributions also will convert to Class A shares in the same proportion as the
other Class B shares.

Class C shares also have a higher annual distribution fee than Class A shares.
Class C shares have no sales charge if you hold the shares for longer than one
year. Unlike Class B shares, Class C shares do not convert to Class A. As a
result, you will pay a 1% distribution fee for as long as you hold Class C
shares. If you choose a deferred sales charge option (Class B or Class C), you
should consider the length of time you intend to hold your shares. To help you
determine which investment is best for you, consult your financial advisor or
investment professional.

For more information, see the SAI.

PURCHASING SHARES

Financial intermediaries are required by law to obtain certain personal
information from each person who opens an account in order to verify the
identity of the person. As a result, when you open an account you will be asked
to provide your name, permanent street address, date of birth, and Social
Security or Employer Identification number. You may also be asked for other
identifying documents or information. If you do not provide this information,
the Fund, or the financial intermediary through which you are investing in the
Fund, may not be able to open an account for you. If the Fund or if the
financial intermediary through which you are investing in the Fund is unable to
verify your identity, your account may be closed, or other steps may be taken,
as deemed appropriate.

TO PURCHASE SHARES WITH A FINANCIAL INTERMEDIARY OTHER THAN AMERIPRISE FINANCIAL
SERVICES, PLEASE CONSULT YOUR FINANCIAL INTERMEDIARY. SEE "TRANSACTIONS THROUGH
UNAFFILIATED FINANCIAL INTERMEDIARIES" FOR MORE INFORMATION. THE FOLLOWING
SECTION EXPLAINS POLICIES OF THE RIVERSOURCE FUNDS AND HOW YOU CAN PURCHASE FUND
SHARES FROM AMERIPRISE FINANCIAL SERVICES.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.22
<Page>

If you do not have an existing RiverSource fund account, with Ameriprise
Financial Services, you will need to establish a brokerage account. Your
financial advisor or investment professional will help you fill out and submit
an application. Once your account is set up, you can choose among several
convenient ways to invest.

When you purchase, your order will be priced at the next NAV calculated after
your order is accepted by the Fund. If your application does not specify which
class of shares you are purchasing, we will assume you are investing in Class A
shares.

IMPORTANT: When you open an account, you must provide your correct Taxpayer
Identification Number (TIN), which is either your Social Security or Employer
Identification number.

If you do not provide and certify the correct TIN, you could be subject to
backup withholding of 28% of taxable distributions and proceeds from certain
sales and exchanges. You also could be subject to further penalties, such as:

- -    a $50 penalty for each failure to supply your correct TIN,

- -    a civil penalty of $500 if you make a false statement that results in no
     backup withholding, and

- -    criminal penalties for falsifying information.

You also could be subject to backup withholding, if the IRS notifies us to do
so, because you failed to report required interest or dividends on your tax
return.

HOW TO DETERMINE THE CORRECT TIN

<Table>
<Caption>
FOR THIS TYPE OF ACCOUNT:                              USE THE SOCIAL SECURITY OR EMPLOYER IDENTIFICATION NUMBER OF:
                                                    
Individual or joint account                            The individual or one of the owners listed on the joint account

Custodian account of a minor                           The minor
(Uniform Gifts/Transfers to Minors Act)

A revocable living trust                               The grantor-trustee (the person who puts the money into the trust)

An irrevocable trust, pension trust or                 The legal entity (not the personal representative or trustee,
estate                                                 unless no legal entity is designated in the account title)

Sole proprietorship or single-owner LLC                The owner

Partnership or multi-member LLC                        The partnership

Corporate or LLC electing corporate status             The corporation
on Form 8832

Association, club or tax-exempt organization           The organization
</Table>

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.23
<Page>

For details on TIN requirements, contact your financial advisor or investment
professional to obtain a copy of Form W-9, "Request for Taxpayer Identification
Number and Certification." You also may obtain the form on the Internet at
www.irs.gov.

METHODS OF PURCHASING SHARES

BY MAIL

Once your account has been established, send your check to:

AMERIPRISE FINANCIAL SERVICES
70200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474

MINIMUM AMOUNTS
Initial investment:           $2,000*
Additional investments:       $500**
Account balances:             $300
Qualified account balances:   none

If your Fund account balance falls below $300 for any reason, including a market
decline, you will be asked to increase it to $300 or establish a scheduled
investment plan. If you do not do so within 30 days, your shares may be
automatically redeemed and the proceeds mailed to you.

 *   $1,000 for tax qualified accounts.
**   $100 minimum add-on for existing mutual fund accounts outside of a
     brokerage account.

BY SCHEDULED INVESTMENT PLAN

MINIMUM AMOUNTS
Initial investment:           $2,000*
Additional investments:       $100**
Account balances:             none (on a scheduled investment plan with
                              monthly payments)

If your Fund account balance is below $2,000, you must make payments at least
monthly.

 *   $100 for accounts outside of a brokerage account.
**   $50 minimum per payment for qualified accounts outside of a brokerage
     account.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.24
<Page>

BY WIRE OR ELECTRONIC FUNDS TRANSFER

Please contact your financial advisor or investment professional for specific
instructions.

Minimum wire purchase amount: $1,000 or new account minimum, as applicable.

BY TELEPHONE

If you have a brokerage account, you may use the money in your account to make
initial and subsequent purchases.

To place your order, call:
(800) 297-7378 for brokerage accounts
(800) 967-4377 for wrap accounts

SALES CHARGES

CLASS A -- INITIAL SALES CHARGE ALTERNATIVE

Your purchase price for Class A shares is generally the NAV plus a front-end
sales charge. Sales charges vary depending on the amount of your purchase. The
distributor receives the sales charge and re-allows a portion of the sales
charge to the financial intermediary through which you purchased the shares. The
distributor retains the balance of the sales charge. Sales charge* for Class A
shares:

<Table>
<Caption>
                                                                MAXIMUM
                            AS A % OF         AS A % OF      RE-ALLOWANCE
                            PURCHASE         NET AMOUNT        AS A % OF
TOTAL MARKET VALUE           PRICE**          INVESTED      PURCHASE PRICE
                                                   
Up to $49,999                  5.75%            6.10%             5.00%
$50,000-$99,999                4.75             4.99              4.00
$100,000-$249,999              3.50             3.63              3.00
$250,000-$499,999              2.50             2.56              2.15
$500,000-$999,999              2.00             2.04              1.75
$1,000,000 or more***          0.00             0.00              0.00
</Table>

  *  Because of rounding in the calculation of the offering price, the portion
     of the sales charge retained by the distributor may vary and the actual
     sales charge you pay may be more or less than the sales charge calculated
     using these percentages.
 **  Offering price includes the sales charge.
***  Although there is no sales charge for purchases with a total market value
     over $1,000,000, and therefore no re-allowance, the distributor may pay a
     sales commission to a financial intermediary making a sale with a total
     market value of $1,000,000 to $3,000,000, a sales commission up to 1.00%;
     $3,000,000 to $10,000,000, a sales commission up to 0.50%; and $10,000,000
     or more, a sales commission up to 0.25%.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.25
<Page>

RIGHTS OF ACCUMULATION

YOU MAY BE ABLE TO REDUCE THE SALES CHARGE ON CLASS A SHARES, BASED ON THE
COMBINED MARKET VALUE OF YOUR ACCOUNTS.

The current market values of the following investments are eligible to be added
together for purposes of determining the sales charge on your purchase:

- -    Your current investment in this Fund, and

- -    Previous investments you and members of your primary household group have
     made in Class A, Class B or Class C shares in this and other RiverSource
     funds, provided your investment was subject to a sales charge.

     -    Your primary household group consists of you, your spouse or domestic
          partner, and your unmarried children under age 21 sharing a mailing
          address. For purposes of this policy a domestic partner is an
          individual who shares your primary residence and with whom you own
          joint property. If you or any member of your primary household group
          elects to separate from the primary household group (for example, by
          asking that account statements be sent to separate addresses), your
          assets will no longer be combined for purposes of reducing your sales
          charge.

The following accounts are eligible to be included in determining the sales
charge on your purchase:

- -    Individual or joint accounts held outside of a brokerage account;

- -    Individual or joint accounts held through a brokerage account;

- -    Roth and traditional IRAs, SEPs, SIMPLEs and TSCAs, provided they are
     invested in Class A, Class B or Class C shares that are subject to a sales
     charge;

- -    UGMA/UTMA accounts for which you, your spouse, or your domestic partner is
     parent or guardian of the minor child;

- -    Revocable trust accounts for which you or a member of your primary
     household group, individually, is the beneficiary;

- -    Accounts held in the name of your, your spouse's, or your domestic
     partner's sole proprietorship or single owner limited liability company or
     S corporation; and

- -    Qualified retirement plan assets, provided that you are the sole owner of
     the business sponsoring the plan, are the sole participant (other than a
     spouse) in the plan, and have no intention of adding participants to the
     plan.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.26
<Page>

The following accounts are NOT eligible to be included in determining the sales
charge on your purchase:

- -    Accounts of pension and retirement plans with multiple participants, such
     as 401(k) plans (which are combined to reduce the sales charge for the
     entire pension or retirement plan and therefore are not used to reduce the
     sales charge for your individual accounts);

- -    Investments in Class A shares where the sales charge is waived, for
     example, purchases through wrap accounts, including Ameriprise Strategic
     Portfolio Service ADVANTAGE (SPS);

- -    Investments in Class D, Class E, or Class Y shares;

- -    Investments in 529 plans, donor advised funds, variable annuities, variable
     life insurance products, wrap accounts or managed separate accounts; and

- -    Charitable and irrevocable trust accounts.

If you purchase RiverSource fund shares through different channels or different
financial intermediaries, and you want to include those assets toward a reduced
sales charge, you must inform Ameriprise Financial Services, your financial
advisor or investment professional in writing about the other accounts when
placing your purchase order. When placing your purchase order, you must provide
your most recent account statement and contact information regarding the other
accounts. A financial intermediary other than Ameriprise Financial Services may
require additional information.

UNLESS YOU PROVIDE AMERIPRISE FINANCIAL SERVICES, YOUR FINANCIAL ADVISOR OR YOUR
INVESTMENT PROFESSIONAL IN WRITING WITH INFORMATION ABOUT ALL OF THE ACCOUNTS
THAT MAY COUNT TOWARD A SALES CHARGE REDUCTION, THERE CAN BE NO ASSURANCE THAT
YOU WILL RECEIVE ALL OF THE REDUCTIONS FOR WHICH YOU MAY BE ELIGIBLE.

For more information on rights of accumulation, please see the SAI.

LETTER OF INTENT (LOI)

Generally, if you intend to invest $50,000 or more over a period of 13 months,
you may be able to reduce the front-end sales charges for investments in Class A
shares by completing and filing a LOI form. The LOI becomes effective only after
the form is processed in good order by the distributor. An LOI can be backdated
up to a maximum of 90 days. If the LOI is backdated, you may include prior
investments in Class A shares that were charged a front-end sales load toward
the LOI commitment amount. If the LOI is backdated, the 13 month period begins
on the date of the earliest purchase included in the LOI.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.27
<Page>

HOLDINGS MORE THAN 90 DAYS OLD. Purchases made more than 90 days before your LOI
is processed by the distributor will not be counted towards the commitment
amount of the LOI and cannot be used as the starting point for the LOI. While
these purchases cannot be included in an LOI, they may help you obtain a reduced
sales charge on future purchases as described in "Rights of Accumulation."

NOTIFICATION OBLIGATION. If purchasing shares in a brokerage account or through
a financial intermediary, you must request the reduced sales charge when you buy
shares. If you do not complete and file the LOI form, or do not request the
reduced sales charge at the time of purchase, you will not be eligible for the
reduced sales charge.

For more details on LOIs, please contact your financial advisor, investment
professional or see the SAI.

WAIVERS OF THE SALES CHARGE FOR CLASS A SHARES

Sales charges do not apply to:

- -    current or retired Board members, officers or employees of the Fund or
     Ameriprise Financial or its subsidiaries, their spouses or domestic
     partners, children and parents.

- -    current or retired Ameriprise Financial Services financial advisors,
     employees of financial advisors, their spouses or domestic partners,
     children and parents.

- -    portfolio managers employed by subadvisers of the RiverSource funds,
     including their spouses or domestic partners, children and parents.

- -    registered representatives and other employees of financial intermediaries
     having a sub-distribution agreement with the distributor, including their
     spouses, domestic partners, children and parents.

- -    qualified employee benefit plans offering participants daily access to
     RiverSource funds. Eligibility must be determined in advance. For
     assistance, please contact your financial advisor or investment
     professional. Participants in certain qualified plans where the initial
     sales charge is waived may be subject to a deferred sales charge of up to
     4%.

- -    shareholders who have at least $1 million in RiverSource funds. If the
     investment is sold within one year after purchase, a CDSC of 1% may be
     charged.

- -    direct rollovers from Ameriprise Retirement Services, provided that the
     rollover involves a transfer of Class Y shares in this Fund to Class A
     shares in this Fund.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.28
<Page>

- -    purchases made:

     -  with dividend or capital gain distributions from this Fund or from the
        same class of another RiverSource fund,

     -  through or under a wrap fee product or other investment product
        sponsored by the distributor or another authorized broker-dealer,
        investment advisor, bank or investment professional,

     -  within a segregated separate account offered by Nationwide Life
        Insurance Company or Nationwide Life and Annuity Insurance Company,

     -  through American Express Personal Trust Services' Asset-Based pricing
        alternative, provided by American Express Bank, FSB.

- -    shareholders whose original purchase was in a Strategist fund merged into a
     RiverSource fund in 2000.

Policies related to reducing or waiving the sales charge may be modified or
withdrawn at any time.

UNLESS YOU PROVIDE AMERIPRISE FINANCIAL SERVICES, YOUR FINANCIAL ADVISOR OR
INVESTMENT PROFESSIONAL WITH INFORMATION IN WRITING ABOUT ALL OF THE FACTORS
THAT MAY COUNT TOWARD A WAIVER OF THE SALES CHARGE, THERE CAN BE NO ASSURANCE
THAT YOU WILL RECEIVE ALL OF THE WAIVERS FOR WHICH YOU MAY BE ELIGIBLE.

You also may view this information about sales charges and breakpoints free of
charge on the Fund's website. Go to www.riversource.com/investments and click on
the hyperlink "Sales Charge Discount Information."

CLASS B AND CLASS C -- CONTINGENT DEFERRED SALES CHARGE (CDSC) ALTERNATIVE FOR
CLASS B, the CDSC is based on the sale amount and the number of years --
including the year of purchase -- between purchase and sale. The following table
shows how CDSC percentages on sales decline:

<Table>
<Caption>
IF THE SALE IS MADE DURING THE:                    THE CDSC PERCENTAGE RATE IS:*
                                                
First year                                                     5%
Second year                                                    4%
Third year                                                     4%
Fourth year                                                    3%
Fifth year                                                     2%
Sixth year                                                     1%
Seventh year                                                   0%
</Table>

*    Because of rounding in the calculation, the portion of the CDSC retained by
     the distributor may vary and the actual CDSC you pay may be more or less
     than the CDSC calculated using these percentages.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.29
<Page>

Although there is no front-end sales charge when you buy Class B shares, the
distributor pays a sales commission of 4% to financial intermediaries that sell
Class B shares. A portion of this commission may, in turn, be paid to your
financial advisor. The distributor receives any CDSC imposed when you sell your
Class B shares.

Purchases made prior to May 21, 2005 age on a calendar year basis. Purchases
made beginning May 21, 2005 age on a daily basis. For example, a purchase made
on Nov. 12, 2004 will complete its first year on Dec. 31, 2004 under calendar
year aging. However, a purchase made on Nov. 12, 2005 will complete its first
year on Nov. 11, 2006 under daily aging.

For Class B shares purchased prior to May 21, 2005, those shares will convert to
Class A shares in the ninth calendar year of ownership. For Class B shares
purchased beginning May 21, 2005, those shares will convert to Class A shares
one month after the completion of the eighth year of ownership.

FOR CLASS C, a 1% CDSC may be charged if you sell your shares within one year
after purchase. Although there is no front-end sales charge when you buy Class C
shares, the distributor pays a sales commission of 1% to financial
intermediaries that sell Class C shares. A portion of this commission may, in
turn, be paid to your financial advisor. The distributor receives any CDSC
imposed when you sell your Class C shares.

For both Class B and Class C, if the amount you sell causes the value of your
investment to fall below the cost of the shares you have purchased, the CDSC
will be based on the lower of the cost of those shares purchased or market
value. Because the CDSC is imposed only on sales that reduce your total purchase
payments, you do not have to pay a CDSC on any amount that represents
appreciation in the value of your shares, income earned by your shares, or
capital gains.

In addition, the CDSC on your sale, if any, will be based on your oldest
purchase payment. The CDSC on the next amount sold will be based on the next
oldest purchase payment.

EXAMPLE

Assume you had invested $10,000 in Class B shares and that your investment had
appreciated in value to $12,000 after 3 1/2 years, including reinvested
dividends and capital gain distributions. You could sell up to $2,000 worth of
shares without paying a CDSC ($12,000 current value less $10,000 purchase
amount). If you sold $2,500 worth of shares, the CDSC would apply to the $500
representing part of your original purchase price. The CDSC rate would be 3%
because the sale was made during the fourth year after the purchase.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.30
<Page>

WAIVERS OF THE CDSC FOR CLASS B SHARES

The CDSC will be waived on sales of shares:

- -    in the event of the shareholder's death,

- -    held in trust for an employee benefit plan, or

- -    held in IRAs or certain qualified plans if Ameriprise Trust Company is the
     custodian, such as Keogh plans, tax-sheltered custodial accounts or
     corporate pension plans, provided that the shareholder is:

     -    at least 59 1/2 years old AND

     -    taking a retirement distribution (if the sale is part of a transfer to
          an IRA or qualified plan, or a custodian-to-custodian transfer, the
          CDSC will not be waived) OR

     -    selling under an approved substantially equal periodic payment
          arrangement.

WAIVERS OF THE CDSC FOR CLASS C SHARES

The CDSC will be waived on sales of shares in the event of the shareholder's
death.

EXCHANGING/SELLING SHARES

TO SELL OR EXCHANGE SHARES HELD WITH FINANCIAL INTERMEDIARIES OTHER THAN
AMERIPRISE FINANCIAL SERVICES, PLEASE CONSULT YOUR FINANCIAL INTERMEDIARY. SEE
"TRANSACTIONS THROUGH UNAFFILIATED FINANCIAL INTERMEDIARIES" FOR MORE
INFORMATION. THE FOLLOWING SECTION EXPLAINS POLICIES OF THE RIVERSOURCE FUNDS ON
HOW YOU CAN EXCHANGE OR SELL SHARES HELD WITH AMERIPRISE FINANCIAL SERVICES.

EXCHANGES

You may exchange your Fund shares at no charge for shares of the same class of
any other publicly offered RiverSource fund. Exchanges into RiverSource
Tax-Exempt Money Market Fund may only be made from Class A shares. For complete
information on the other fund, including fees and expenses, read that fund's
prospectus carefully. Your exchange will be priced at the next NAV calculated
after your transaction request is received in good order.

MARKET TIMING IS FREQUENT OR SHORT-TERM TRADING BY CERTAIN SHAREHOLDERS INTENDED
TO PROFIT AT THE EXPENSE OF OTHER SHAREHOLDERS BY SELLING SHARES OF A FUND
SHORTLY AFTER PURCHASE. MARKET TIMING MAY ADVERSELY IMPACT A FUND'S PERFORMANCE
BY PREVENTING THE INVESTMENT MANAGER FROM FULLY INVESTING THE ASSETS OF THE
FUND, DILUTING THE VALUE OF SHARES HELD BY LONG-TERM SHAREHOLDERS, OR INCREASING
THE FUND'S TRANSACTION COSTS. SEE "VALUING FUND SHARES" FOR A DISCUSSION OF THE
FUND'S POLICY ON FAIR VALUE PRICING, WHICH IS INTENDED, IN PART, TO REDUCE THE
FREQUENCY AND EFFECT OF MARKET TIMING.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.31
<Page>

THE FUND'S BOARD HAS ADOPTED A POLICY THAT IS DESIGNED TO DETECT AND DETER
MARKET TIMING. THE FUND SEEKS TO ENFORCE THIS POLICY AS FOLLOWS:

- -    The Fund tries to distinguish market timing from trading that it believes
     is not harmful, such as periodic rebalancing for purposes of asset
     allocation or dollar cost averaging. Under the Fund's procedures, there is
     no set number of transactions in the Fund that constitutes market timing.
     Even one purchase and subsequent sale by related accounts may be market
     timing. Generally, the Fund seeks to restrict the exchange privilege of an
     investor who makes more than three exchanges into or out of the Fund in any
     90-day period. Accounts held by a retirement plan or an institution for the
     benefit of its participants or clients, which typically engage in daily
     transactions, are not subject to this limit. The Fund seeks the assistance
     of financial intermediaries in applying similar restrictions on the
     sub-accounts of their participants or clients.

- -    If an investor's trading activity is determined to be market timing or
     otherwise harmful to existing shareholders, the Fund reserves the right to
     modify or discontinue the investor's exchange privilege or reject the
     investor's purchases or exchanges, including purchases or exchanges
     accepted by a financial intermediary. The Fund may treat accounts it
     believes to be under common control as a single account for these purposes,
     although it may not be able to identify all such accounts.

- -    Although the Fund does not knowingly permit market timing, it cannot
     guarantee that it will be able to identify and restrict all short-term
     trading activity. The Fund receives purchase and sale orders through
     financial intermediaries where market timing activity may not always be
     successfully detected.

Other exchange policies:

- -    Exchanges must be made into the same class of shares of the new fund.

- -    If your exchange creates a new account, it must satisfy the minimum
     investment amount for new purchases.

- -    Once we receive your exchange request, you cannot cancel it.

- -    Shares of the new fund may not be used on the same day for another
     exchange.

- -    If your shares are pledged as collateral, the exchange will be delayed
     until written approval is received from the secured party.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.32
<Page>

SELLING SHARES

You may sell your shares at any time. The payment will be mailed within seven
days after your request is received in good order.

When you sell shares, the amount you receive may be more or less than the amount
you invested. Your sale price will be the next NAV calculated after your request
is received in good order, minus any applicable CDSC.

REPURCHASES. You can change your mind after requesting a sale and use all or
part of the proceeds to purchase new shares in the same account from which you
sold. If you reinvest in Class A, you will purchase the new shares at NAV rather
than the offering price on the date of a new purchase. If you reinvest in Class
B or Class C, any CDSC you paid on the amount you are reinvesting also will be
reinvested. To take advantage of this waiver, you must send a written request
within 90 days of the date your sale request was processed and include your
account number. This privilege may be limited or withdrawn at any time and use
of this option may have tax consequences.

The Fund reserves the right to redeem in kind.

For more details and a description of other sales policies, please see the SAI.

If you decide to sell your shares within 30 days of a telephoned-in address
change, a written request is required.

IMPORTANT: Payments sent by a bank authorization, check or money order that are
not guaranteed may take up to ten days to clear. This may cause your scheduled
arrangement or unscheduled request to fail to process if the requested amount
includes unguaranteed funds.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.33
<Page>

WAYS TO REQUEST AN EXCHANGE OR SALE OF SHARES

BY REGULAR OR EXPRESS MAIL

AMERIPRISE FINANCIAL SERVICES
70200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474

Include in your letter:

- -    your account number

- -    the name of the fund(s)

- -    the class of shares to be exchanged or sold

- -    your Social Security number or Employer Identification number

- -    the dollar amount or number of shares you want to exchange or sell

- -    specific instructions regarding delivery or exchange destination

- -    signature(s) of registered account owner(s) (All signatures may be
     required. Contact your financial advisor or Ameriprise Financial Services
     for more information.)

- -    any paper certificates of shares you hold

Payment will be mailed to the address of record and made payable to the names
listed on the account, unless your request specifies differently and is signed
by all owners.

The express mail delivery charges you pay will vary depending on domestic or
international delivery instructions.

BY TELEPHONE

(800) 297-7378 for brokerage accounts
(800) 967-4377 for wrap accounts
(800) 862-7919 for non-brokerage/wrap accounts

- -    Reasonable procedures will be used to confirm authenticity of telephone
     exchange or sale requests.

- -    Telephone exchange and sale privileges automatically apply to all accounts
     except custodial, corporate or qualified retirement accounts. You may
     request that these privileges NOT apply by writing the distributor. Each
     registered owner must sign the request.

- -    Acting on your instructions, your financial advisor may conduct telephone
     transactions on your behalf.

- -    Telephone privileges may be modified or discontinued at any time.

MINIMUM SALE AMOUNT:          $100
MAXIMUM SALE AMOUNT:          $100,000

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.34
<Page>

BY WIRE

You can wire money from your account to your bank account. Contact your
financial advisor or Ameriprise Financial Services at the above numbers for
additional information.

- -    Minimum amount: $1,000

- -    Pre-authorization is required.

- -    A service fee may be charged against your account for each wire sent.

BY SCHEDULED PAYOUT PLAN

- -    Minimum payment: $100*

- -    Contact your financial advisor or Ameriprise Financial Services to set up
     regular payments.

- -    Purchasing new shares while under a payout plan may be disadvantageous
     because of the sales charges.

* Minimum is $50 in a non-brokerage/wrap account.

ELECTRONIC TRANSACTIONS

The ability to initiate transactions via the internet may be unavailable or
delayed at certain times (for example, during periods of unusual market
activity). The Fund and the distributor are not responsible for any losses
associated with unexecuted transactions. In addition, the Fund and the
distributor are not responsible for any losses resulting from unauthorized
transactions if reasonable security measures are followed to validate the
investor's identity. The Fund may modify or discontinue electronic privileges at
any time for any shareholder without prior notice as deemed necessary and in the
best interest of the Fund.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.35
<Page>

DISTRIBUTIONS AND TAXES

As a shareholder you are entitled to your share of the Fund's net income and net
gains. The Fund distributes dividends and capital gains to qualify as a
regulated investment company and to avoid paying corporate income and excise
taxes.

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

The Fund's net investment income is distributed to you as DIVIDENDS. Dividends
may be composed of qualifying dividend income, which is eligible for
preferential tax rates under current tax law, as well as other ordinary dividend
income, which may include non-qualifying dividends, interest income and
short-term capital gains. Capital gains are realized when a security is sold for
a higher price than was paid for it. Each realized capital gain or loss is
long-term or short-term depending on the length of time the Fund held the
security. Realized capital gains and losses offset each other. The Fund offsets
any net realized capital gains by any available capital loss carryovers. Net
short-term capital gains are included in net investment income. Net realized
long-term capital gains, if any, are distributed by the end of the calendar year
as CAPITAL GAIN DISTRIBUTIONS.

REINVESTMENTS

Dividends and capital gain distributions are automatically reinvested in
additional shares in the same class of the Fund, unless:

- -    you request distributions in cash, or

- -    you direct the Fund to invest your distributions in the same class of any
     publicly offered RiverSource fund for which you have previously opened an
     account.

We reinvest the distributions for you at the next calculated NAV after the
distribution is paid.

If you choose cash distributions, you will receive cash only for distributions
declared after your request has been processed.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.36
<Page>

TAXES

Distributions are subject to federal income tax and may be subject to state and
local taxes in the year they are declared. You must report distributions on your
tax returns, even if they are reinvested in additional shares.

If you buy shares shortly before the record date of a distribution, you may pay
taxes on money earned by the Fund before you were a shareholder. You will pay
the full pre-distribution price for the shares, then receive a portion of your
investment back as a distribution, which may be taxable.

For tax purposes, an exchange is considered a sale and purchase, and may result
in a gain or loss. A sale is a taxable transaction. If you sell shares for less
than their cost, the difference is a capital loss. If you sell shares for more
than their cost, the difference is a capital gain. Your gain may be short term
(for shares held for one year or less) or long term (for shares held for more
than one year).

You may not create a tax loss, based on paying a sales charge, by exchanging
shares within 91 days of purchase. If you buy Class A shares and within 91 days
exchange into another fund, you may not include the sales charge in your
calculation of tax gain or loss on the sale of the first fund you purchased. The
sales charge may be included in the calculation of your tax gain or loss on a
subsequent sale of the second fund you purchased. For more information, see the
SAI.

Selling shares held in an IRA or qualified retirement account may subject you to
federal taxes, penalties and reporting requirements. Please consult your tax
advisor.

IMPORTANT: This information is a brief and selective summary of some of the tax
rules that apply to this Fund. Because tax matters are highly individual and
complex, you should consult a qualified tax advisor.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.37
<Page>

FINANCIAL HIGHLIGHTS

THE FINANCIAL HIGHLIGHTS TABLES ARE INTENDED TO HELP YOU UNDERSTAND THE FUND'S
FINANCIAL PERFORMANCE. CERTAIN INFORMATION REFLECTS FINANCIAL RESULTS FOR A
SINGLE FUND SHARE. THE TOTAL RETURNS IN THE TABLES REPRESENT THE RATE THAT AN
INVESTOR WOULD HAVE EARNED OR LOST ON AN INVESTMENT IN THE FUND (ASSUMING
REINVESTMENT OF ALL DIVIDENDS AND DISTRIBUTIONS). THIS INFORMATION HAS BEEN
AUDITED BY KPMG LLP, WHOSE REPORT, ALONG WITH THE FUND'S FINANCIAL STATEMENTS,
IS INCLUDED IN THE ANNUAL REPORT WHICH, IF NOT INCLUDED WITH THIS PROSPECTUS, IS
AVAILABLE UPON REQUEST.

CLASS A

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                               2005          2004       2003      2002(b)
                                                                                 
PER SHARE INCOME AND CAPITAL CHANGES(a)
Net asset value, beginning of period                     $ 4.64        $ 4.53      $ 4.11    $  5.00
- ----------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                .04           .01         .01         --
Net gains (losses) (both realized and unrealized)           .61           .32         .41       (.89)
- ----------------------------------------------------------------------------------------------------
Total from investment operations                            .65           .33         .42       (.89)
- ----------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Dividends from net investment income                       (.02)           --          --         --
Distributions from realized gains                          (.01)         (.22)         --         --
- ----------------------------------------------------------------------------------------------------
Total distributions                                        (.03)         (.22)         --         --
- ----------------------------------------------------------------------------------------------------
Net asset value, end of period                           $ 5.26        $ 4.64      $ 4.53    $  4.11
- ----------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                  $1,029        $1,248      $   83    $    11
- ----------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)       1.11%         1.20%       1.25%      1.25%(e)
- ----------------------------------------------------------------------------------------------------
Ratio of net investment income (loss)
to average daily net assets                                 .79%          .36%        .24%      (.11%)(e)
- ----------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term
securities)                                                 128%           99%        135%        88%
- ----------------------------------------------------------------------------------------------------
Total return(f)                                           13.99%         7.19%      10.22%    (17.80%)(g)
- ----------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.
(b)  For the period from March 28, 2002 (when shares became publicly available)
     to July 31, 2002.
(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.
(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class A
     would have been 1.16%, 1.23%, 1.84% and 5.12% for the periods ended July
     31, 2005, 2004, 2003 and 2002, respectively.
(e)  Adjusted to an annual basis.
(f)  Total return does not reflect payment of a sales charge.
(g)  Not annualized.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.38
<Page>

CLASS B

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                               2005          2004        2003         2002(b)
                                                                                    
PER SHARE INCOME AND CAPITAL CHANGES(a)
Net asset value, beginning of period                     $ 4.56         $4.48       $4.10       $  5.00
- --------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                 --          (.01)       (.01)         (.01)
Net gains (losses) (both realized and unrealized)           .60           .31         .39          (.89)
- --------------------------------------------------------------------------------------------------------
Total from investment operations                            .60           .30         .38          (.90)
- --------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Distributions from realized gains                          (.01)         (.22)         --            --
- --------------------------------------------------------------------------------------------------------
Net asset value, end of period                           $ 5.15         $4.56       $4.48       $  4.10
- --------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                  $  472         $ 572       $ 36        $     5
- --------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)       1.88%         1.95%       2.01%         2.01%(e)
- --------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss)
to average daily net assets                                 .02%         (.46%)      (.52%)        (.86%)(e)
- --------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term
securities)                                                 128%           99%        135%           88%
- --------------------------------------------------------------------------------------------------------
Total return(f)                                           13.09%         6.48%       9.27%       (18.00%)(g)
- --------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.
(b)  For the period from March 28, 2002 (when shares became publicly available)
     to July 31, 2002.
(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.
(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class B
     would have been 1.93%, 1.98%, 2.60% and 5.88% for the periods ended July
     31, 2005, 2004, 2003 and 2002, respectively.
(e)  Adjusted to an annual basis.
(f)  Total return does not reflect payment of a sales charge.
(g)  Not annualized.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.39
<Page>

CLASS C

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                              2005           2004       2003         2002(b)
                                                                                    
PER SHARE INCOME AND CAPITAL CHANGES(a)
Net asset value, beginning of period                     $ 4.57         $4.49       $4.10       $  5.00
- -------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                 --          (.01)       (.01)         (.01)
Net gains (losses) (both realized and unrealized)           .60           .31         .40          (.89)
- -------------------------------------------------------------------------------------------------------
Total from investment operations                            .60           .30         .39          (.90)
- -------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Distributions from realized gains                          (.01)         (.22)         --            --
- -------------------------------------------------------------------------------------------------------
Net asset value, end of period                           $ 5.16         $4.57       $4.49       $  4.10
- -------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                  $    9         $  11       $   2       $    --
- -------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)       1.88%         1.98%       2.01%         2.01%(e)
- -------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss)
to average daily net assets                                 .02%         (.43%)      (.53%)        (.92%)(e)
- -------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term
securities)                                                 128%           99%        135%           88%
- -------------------------------------------------------------------------------------------------------
Total return(f)                                           13.06%         6.46%       9.51%       (18.00%)(g)
- -------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.
(b)  For the period from March 28, 2002 (when shares became publicly available)
     to July 31, 2002.
(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.
(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class C
     would have been 1.93%, 2.01%, 2.60% and 5.88% for the periods ended July
     31, 2005, 2004, 2003 and 2002, respectively.
(e)  Adjusted to an annual basis.
(f)  Total return does not reflect payment of a sales charge.
(g)  Not annualized.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.40
<Page>

CLASS Y

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                              2005          2004        2003         2002(b)
                                                                                    
PER SHARE INCOME AND CAPITAL CHANGES(a)
Net asset value, beginning of period                     $ 4.66         $4.54      $ 4.11       $  5.00
- -------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                .04           .01         .01            --
Net gains (losses) (both realized and unrealized)           .61           .34         .42          (.89)
- -------------------------------------------------------------------------------------------------------
Total from investment operations                            .65           .35         .43          (.89)
- -------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Dividends from net investment income                       (.02)         (.01)         --            --
Distributions from realized gains                          (.01)         (.22)         --            --
- -------------------------------------------------------------------------------------------------------
Total distributions                                        (.03)         (.23)         --            --
- -------------------------------------------------------------------------------------------------------
Net asset value, end of period                           $ 5.28         $4.66      $ 4.54       $  4.11
- -------------------------------------------------------------------------------------------------------
RATIOS/SUPPLEMENTAL DATA
Net assets, end of period (in millions)                  $   --         $   8      $   --       $    --
- -------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)        .90%         1.00%       1.07%         1.07%(e)
- -------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss)
to average daily net assets                                1.08%          .50%        .45%          .09%(e)
- -------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term
securities)                                                 128%           99%        135%           88%
- -------------------------------------------------------------------------------------------------------
Total return(f)                                           14.06%         7.44%      10.46%       (17.80%)(g)
- -------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.
(b)  For the period from March 28, 2002 (when shares became publicly available)
     to July 31, 2002.
(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.
(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class Y
     would have been 0.95%, 1.03%, 1.66% and 4.94% for the periods ended July
     31, 2005, 2004, 2003 and 2002, respectively.
(e)  Adjusted to an annual basis.
(f)  Total return does not reflect payment of a sales charge.
(g)  Not annualized.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.41
<Page>

This Fund, along with the other RiverSource funds, is distributed by Ameriprise
Financial Services, Inc. and can be purchased from Ameriprise Financial Services
or from a limited number of other authorized financial intermediaries. The Fund
can be found under the "RiverSource " banner in most mutual fund quotations.

Additional information about the Fund and its investments is available in the
Fund's SAI, and annual and semiannual reports to shareholders. In the Fund's
annual report, you will find a discussion of market conditions and investment
strategies that significantly affected the Fund's performance during its most
recent fiscal year. The SAI is incorporated by reference in this prospectus. For
a free copy of the SAI, the annual report, or the semiannual report, or to
request other information about the Fund or make a shareholder inquiry, contact
your financial advisor, investment professional or Ameriprise Financial
Services.

Ameriprise Financial Services
70100 Ameriprise Financial Center
Minneapolis, MN 55474
(800) 862-7919
TTY: (800) 846-4852

RiverSource Investments Website address:
riversource.com/investments

You may review and copy information about the Fund, including the SAI, at the
Securities and Exchange Commission's (Commission) Public Reference Room in
Washington, D.C. (for information about the public reference room call
1-202-942-8090). Reports and other information about the Fund are available on
the EDGAR Database on the Commission's Internet site at www.sec.gov. Copies of
this information may be obtained, after paying a duplicating fee, by electronic
request at the following E-mail address: publicinfo@sec.gov, or by writing to
the Public Reference Section of the Commission, Washington, D.C. 20549-0102.

Investment Company Act File #811-2111

TICKER SYMBOL
Class A: ALEAX    Class B: ALEBX
Class C: ARQCX    Class I: --
Class Y: ALEYX

[RIVERSOURCE(TM) INVESTMENTS LOGO]

RIVERSOURCE INVESTMENTS
200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474
                                                             S-6244-99 F (10/05)

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                      D.42
<Page>


EXHIBIT E

BOARD EFFECTIVENESS COMMITTEE CHARTER

RESOLVED, That the Board Effectiveness Committee be composed of the independent
members appointed annually by the Board and the Chair of the Board;

RESOLVED, That one member shall be appointed to Chair the Committee and the
Committee shall meet upon call of the Chair;

RESOLVED, That the Committee will make recommendations to the Board on:

- -    The responsibilities and duties of the Board;

- -    The criteria to be used to determine the size and structure of the Boards
     and the background and characteristics of independent Board members;

- -    The persons to serve as Board members based on approved criteria whenever
     necessary to fill a vacancy or in conjunction with a regular meeting of
     shareholders in which nominees are required to be submitted for a vote of
     shareholders;

- -    The annual evaluation of the Board's performance and the attendance of
     members; and

- -    The compensation to be paid to independent members; and further

RESOLVED, That the Committee shall be assigned such further areas of
responsibility as appropriate to assist the Board in meeting its fiduciary
duties in an efficient and effective manner.


               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       E.1
<Page>


EXHIBIT F

THIS CHARTER IS SCHEDULED TO BE REVIEWED AT AN UPCOMING MEETING OF THE BOARD. AT
THAT TIME, THE BOARD IS EXPECTED TO UPDATE THE CHARTER, INCLUDING CHANGING
REFERENCES FROM AMERICAN EXPRESS FINANCIAL CORPORATION AND ITS SUBSIDIARIES TO
AMERIPRISE FINANCIAL AND ITS SUBSIDIARIES. IN ADDITION, REFERENCES TO AMERICAN
EXPRESS COMPANY WILL BE ELIMINATED.


JOINT AUDIT COMMITTEE CHARTER

MEMBERSHIP AND QUALIFICATIONS

The Joint Audit Committee shall consist of at least three members appointed by
the Board. The Board may replace members of the Committee for any reason.

No member shall be an "interested person" as that term is defined in Section
2(a)(19) of the Investment Company Act, nor shall any member receive any
compensations from the Fund except compensations for service as a member of the
Board and Board committees.

At least one member of the Committee shall be an "audit committee financial
expert." An "audit committee financial expert" means a person who has the
following attributes:

- -    An understanding of generally accepted accounting principles and financial
     statements;

- -    The ability to assess the general application of such principles in
     connection with the accounting for estimates, accruals, and reserves;

- -    Experience preparing, auditing, analyzing, or evaluating financial
     statements that present a breadth and level of complexity of accounting
     issues that are generally comparable to the breadth and complexity of
     issues that can reasonably be expected to be raised by the registrant's
     financial statements, or experience actively supervising one or more
     persons engaged in such activities;

- -    An understanding of internal controls and procedures for financial
     reporting; and

- -    An understanding of audit committee functions.

A person shall have acquired such attributes through:

- -    Education and experience as a principal financial officer, principal
     accounting officer, controller, public accountant, or auditor or experience
     in one or more positions that involve the performance of similar functions;

- -    Experience actively supervising a principal financial officer, principal
     accounting officer, controller, public accountant, auditor, or person
     performing similar functions;

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.1
<Page>

- -    Experience overseeing or assessing the performance of companies or public
     accountants with respect to the preparation, auditing, or evaluation of
     financial statements; or

- -    Other relevant experience.

The Board shall determine "audit committee financial experts" annually.

PURPOSES OF THE COMMITTEE

The Committee is to assist independent members of the Boards in fulfilling their
oversight responsibilities to the shareholders, potential shareholders and
investment community relating to the reliability of financial reporting, the
effectiveness and efficiency of operations, the work done by external auditors,
the adequacy of internal controls, and the compliance with applicable laws and
regulations by:

- -    Overseeing the accounting and financial reporting processes of the Fund and
     its internal control over financial reporting and, as the Committee deems
     appropriate, to inquire into the internal control over financial reporting
     of certain third-party service providers;

- -    Overseeing, or, as appropriate, assisting Board oversight of, the quality
     and integrity of the Fund's financial statements and the independent audit
     thereof;

- -    Overseeing, or, as appropriate, assisting Board oversight of, the Fund's
     compliance with legal and regulatory requirements that relate to the Fund's
     accounting and financial reporting, internal control over financial
     reporting and independent audits; and

- -    Approving prior to appointment the engagement of the Fund's independent
     auditor (Auditor) and, in connection therewith, to review and evaluate the
     qualifications, independence and performance of the Fund's Auditor.

The Auditor for the Fund shall report directly to the Committee.

DUTIES AND POWERS

To carry out its purposes, the Committee shall have the following duties and
powers:

- -    Recommend the Auditor that the Committee believes is qualified to examine
     and report on the financial statements to the independent members of the
     Board within 90 days before or after the fiscal year end of the Fund;

- -    Meet with representatives of the Auditor to:

     -    Review and evaluate matters potentially affecting its independence and
          capabilities by:

          -    Approving prior to appointment the professional services the
               Auditor requests to perform for American Express Financial
               Corporation and any of its subsidiaries that provide services to
               the Fund;

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.2
<Page>

          -    Considering the controls applied by the Auditor and measures
               taken by American Express Financial Corporation to assure that
               all items requiring pre-approval are identified and referred to
               the Committee in a timely fashion; and

          -    Evaluating the auditor's independence by receiving a report on
               business relationships at each meeting setting forth the work it
               has been engaged to do for American Express Company or its
               subsidiaries.

     -    Consider the scope of the annual audit and any special audits and
          review and approve the estimated fees to be charged;

     -    Consider the information and comments from the Auditor with respect to
          the Fund's accounting and financial reporting policies, procedures and
          internal controls over financial reporting; the responses to the
          comments by American Express Financial Corporation; and possible
          improvements that can be made in the quality of the Fund's accounting
          and financial reporting;

- -    Meet with representatives of American Express Enterprise Risk and Assurance
     Services to:

     -    Discuss its responsibility to the Fund with respect to its review of
          operations of American Express Financial Corporation and affiliates to
          the extent they pertain to the registered investment companies;

     -    Consider its authority, including the support it receives from
          American Express Financial Corporation's senior management and
          American Express Company's General Auditor;

     -    Discuss whether it complies with the Institute of Internal Auditors'
          "Standard for the Professional Practice of Internal Auditing;"

     -    Review its budget, staffing and proposed audit plans each year; and

     -    Review reports issued by American Express Enterprise Risk and
          Assurance Services that pertain to American Express Financial
          Corporation's operations related to the registered investment
          companies.

- -    Encourage open lines of communications among the Committee, the Auditor,
     and American Express Enterprise Risk and Assurance Services to:

     -    Consider information and comments from the Auditor with respect to the
          Fund's financial statements, including any adjustments to such
          statements recommended by the Auditor and to review the opinion of the
          Auditor;

     -    Resolve any disagreements between American Express Financial
          Corporation and the Auditor;

     -    Review, in connection with required certifications of Form N-CSR, any
          significant deficiencies in the design or operations of internal
          control over financial reporting or material weaknesses therein and
          any reported evidence of fraud involving any person who has a
          significant role in the Fund's internal control over financial
          reporting;

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.3
<Page>

     -    Establish procedures for the receipt, retention and treatment of
          complaints received by the Fund relating to accounting, internal
          accounting controls, or auditing matters, and the confidential,
          anonymous submission by employees of American Express Financial
          Corporation of concerns about accounting or auditing matters, and
          address reports from attorneys or auditors of possible violations of
          federal or state laws or fiduciary duty;

     -    Investigate or initiate an investigation of reports of improprieties
          or suspected improprieties in connection with the Fund's accounting or
          financial reporting;

- -    Consider the adequacy and effectiveness of internal controls, including the
     controls over computerized information systems, through discussions with
     the Auditor, American Express Enterprise Risk and Assurance Services and
     appropriate American Express Financial Corporation managers who provide
     reports to the Committee and elicit their recommendations for improving or
     identifying particular areas where new or more detailed controls or
     procedures are desirable giving particular emphasis to the adequacy of
     internal controls for exposing any payments, transactions, or procedures
     that might be deemed illegal or otherwise improper;

- -    Request to be informed about all new or changed accounting principles and
     disclosure practices on a timely basis and inquire regarding the judgment
     and reasoning regarding the appropriateness, not just the acceptability, of
     the changes or proposed changes;

- -    Report the work of the Committee to the Board as frequently as the
     Committee deems appropriate;

- -    Review and assess the adequacy of the Committee's charter at least annually
     and recommend any changes to the Board;

- -    Meet at least once a year in a private meeting with each of the three
     following groups: the Auditor, the American Express Financial Corporation's
     management personnel responsible for the financial statements and
     recordkeeping of the Fund, the Senior Vice President -- Enterprise Risk and
     Assurance Services for American Express Financial Corporation, and the
     General Auditor and Chief Operational Risk Officer for American Express
     Company;

- -    Consider such other matters as any Board or Committee deems appropriate and
     perform such additional tasks as directed by resolution of any Board;

- -    Conduct its own investigations into issues related to its responsibilities
     and is authorized to employ such professional and technical assistance as
     it deems necessary.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.4
<Page>

The Committee shall have the resources and authority appropriate to discharge
its responsibilities, including appropriate funding, as determined by the
Committee, for payment of compensation to the Auditor for the purpose of
conducting the audit and rendering their audit report, the authority to retain
and compensate special counsel and other experts or consultants as the Committee
deems necessary, and the authority to obtain specialized training for Committee
members, at the expense of the Fund, as appropriate.

The Committee may delegate any portion of its authority, including the authority
to grant pre-approvals of audit and permitted non-audit services to one or more
members. Any decisions of the member to grant pre-approvals shall be presented
to the Committee at its next regularly scheduled meeting.

ROLE AND RESPONSIBILITIES

The function of the Committee is oversight; it is American Express Financial
Corporation's responsibility to maintain appropriate systems for accounting and
internal control over financial reporting, and the Auditor's responsibility to
plan and carry out a proper audit. Specifically, American Express Financial
Corporation is responsible for: (1) the preparation, presentation and integrity
of the Fund's financial statements; (2) the maintenance of appropriate
accounting and financial reporting principles and policies; and (3) the
maintenance of internal control over financial reporting and other procedures
designed to assure compliance with accounting standards and related laws and
regulations. The Auditor is responsible for planning and carrying out an audit
consistent with applicable legal and professional standards and the terms of
their engagement letter. Nothing in the Charter shall be construed to reduce the
responsibilities or liabilities of the Fund's service providers, including the
Auditor.

Although the Committee is expected to take a detached and questioning approach
to the matters that come before it, the review of a Fund's financial statements
by the Committee is not an audit, nor does the Committee's review substitute for
the responsibilities of American Express Financial Corporation's for preparing,
or the Auditor for auditing, the financial statements. Members of the Committee
are not employees of the Fund and, in serving on this Committee, are not, and do
not hold themselves out to be, acting as accountants or auditors. As such, it is
not the duty or responsibility of the Committee or its members to conduct "field
work" or other types of auditing or accounting reviews or procedures.

               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.5
<Page>

In discharging their duties, the members of the Committee are entitled to rely
on information, opinions, reports, or statements, including financial statements
and other financial data, if prepared or presented by: (1) one or more officers
of the Fund whom the director reasonably believes to be reliable and competent
in the matters presented; (2) legal counsel, public accountants, or other
persons as to matters the director reasonably believes are within the person's
professional or expert competence; or (3) a Board committee of which the
director is not a member.

OPERATIONS

The Board shall adopt and approve this Charter and may amend it on the Board's
own motion. The Committee shall review this Charter at least annually and
recommend to the full Board any changes the Committee deems appropriate.

The Committee may select one of its members to be the chair and may select a
vice chair. A majority of the members of the Committee shall constitute a quorum
for the transaction of business at any meeting of the Committee. The action of a
majority of the members of the Audit Committee present at a meeting at which a
quorum is present shall be the action of the Committee.

The Committee shall meet on a regular basis and at least four times annually and
is empowered to hold special meetings as circumstances require. The Chairperson
or a majority of the members shall be authorized to call a meeting of the
Committee or meetings may be fixed in advance by the Committee.

The agenda shall be prepared under the direction and control of the Chairperson.

The Committee shall ordinarily meet in person; however, members may attend
telephonically, and the Committee may act by written consent, to the extent
permitted by law and by the Fund's bylaws.

The Committee shall have the authority to meet privately and to admit
non-members individually. The Committee may also request to meet with internal
legal counsel and compliance personnel of American Express Financial Corporation
and with entities that provide significant accounting or administrative services
to the Fund to discuss matters relating to the Fund's accounting and compliance
as well as other Fund-related matters.

The Committee shall prepare and retain minutes of its meetings and appropriate
documentation of decisions made outside of meetings by delegated authority.

The Committee shall evaluate its performance at least annually.




               RIVERSOURCE NEW DIMENSIONS FUND -- PROXY STATEMENT
                                       F.6
<Page>

S-6393 A (12/05)





                                             
                                                ezVote(SM)Consolidated Proxy Card
        RIVERSOURCE(SM) FUNDS
formerly known as American Express(R) Funds     This form is your EzVote Consolidated Proxy.
            P.O. BOX 9132                       It reflects all of your accounts registered to
        HINGHAM, MA 02043-9132                  the same Social Security or Tax I.D. number at
                                                this address. By voting and signing the
                                                Consolidated Proxy Card, you are voting all of
                                                these accounts in the same manner as indicated
                                                on the reverse side of the form.


999 999 999 999 99 <-
                                                           RIVERSOURCE(SM) FUNDS
                                      (formerly known as AMERICAN EXPRESS FUNDS)
AXP DIMENSION SERIES, INC.         PROXY FOR THE REGULAR MEETING OF SHAREHOLDERS
RIVERSOURCE NEW DIMENSIONS FUND                                FEBRUARY 15, 2006

Your fund will hold a shareholders' meeting in the Galaxy Room on the 50th floor
of the IDS Center, 80 South Eight Street, Minneapolis, MN, at 10:00 a.m. on
February 15, 2006. You are entitled to vote at the meeting if you were a
shareholder on December 16, 2005. Please read the proxy statement and vote
immediately by mail, telephone or internet, even if you plan to attend the
meeting. Just follow the instructions on this proxy card. The Board of Directors
recommends that you vote FOR each proposal.

The undersigned hereby appoints Arne H. Carlson and Leslie L. Ogg or either of
them, as proxies, with full power of substitution, to represent and to vote all
of the shares of the undersigned at the regular meeting to be held on February
15, 2006, and any adjournment thereof.

                                         Date __________________


                              Signature(s) (Joint owners)    (Sign in the Box)

                              Note: Please sign this proxy exactly as your
                              name (or names) appears on this card. Joint owners
                              should each sign personally. Trustees and other
                              fiduciaries should indicate the capacity in
                              which they sign, and where more than one name
                              appears, a majority must sign. If a corporation,
                              this signature should be that of an authorized
                              officer who should state his or her title.


                                                     AMPF New Dimensions EZ - DH

IF VOTING THE CONSOLIDATED PROXY CARD DO NOT SIGN, DATE OR RETURN THE INDIVIDUAL
BALLOTS




                                              THREE EASY WAYS TO VOTE

        To vote by Telephone                       To vote by Internet                        To vote by Mail
                                                                               
1) Read the proxy statement and have the   1) Read the proxy statement and have      1) Read the Proxy Statement.
   Consolidated Proxy Card at hand.           Consolidated Proxy Card at hand.       2) Check the appropriate boxes on the
2) Call 1-888-221-0697.                    2) Go to www.proxyweb.com                    reverse side.
3) Follow the recorded instructions.       3) Follow the on-line directions.         3) Sign and date the proxy card.
                                                                                     4) Return the proxy card in the envelope
                                                                                        provided.


          IF YOU VOTE BY TELEPHONE OR INTERNET, DO NOT MAIL YOUR CARD.





                                                                 INDIVIDUAL BALLOTS
                                                              
                                                                 On the reverse side of this form (and on accompanying pages,
                                                                 if necessary) you will find individual ballots, one for each of
                                                                 your accounts. If you would wish to vote each of these accounts
                                                                 separately, sign in the signature box below, mark each individual
                                                                 ballot to indicate your vote, detach the form at the perforation
                                                                 above and return the individual ballots portion only.

                                                                 NOTE: If you choose to vote each account separately, do
                                                                 not return the Consolidated Proxy Card above.


                                                                 Date _____________________________


                                                                 -------------------------------------------------------
                                                                 Signature(s) (Joint owners)          (Sign in the Box)
                                                                 Note: Please sign this proxy exactly as your
                                                                 name or names appears on this card. Joint owners
                                                                 should each sign personally. Trustees and other
                                                                 fiduciaries should indicate the capacity in
                                                                 which they sign, and where more than one name
                                                                 appears, a majority must sign. If a corporation,
                                                                 this signature should be that of an authorized
                                                                 officer who should state his or her title.

                                                                                            AMPF New Dimensions EZ - DH


                                ezVote(SM)Consolidated Proxy Card


                                Please fill in box(es) as shown using black or
                                blue ink or number 2 pencil. [X]

                                PLEASE DO NOT USE FINE POINT PENS.




                                                                                                     
To vote FOR on all Proposals, MARK this box (no other vote is necessary)                                [ ]

                                                                                                        FOR  AGAINST  ABSTAIN
1. Approve the Agreement and Plan of Reorganization.                                                    [ ]    [ ]      [ ]   1.
2. ELECTION OF BOARD MEMBERS.
                                                                                                        FOR  WITHHOLD  FOR ALL
                                                                                                        ALL     ALL     EXCEPT
   (01) Kathleen Blatz         (05) Jeffrey Laikind             (09) Alan K. Simpson
   (02) Arne H. Carlson        (06) Stephen R. Lewis, Jr.       (10) Alison Taunton-Rigby
   (03) Patricia M. Flynn      (07) Catherine James Paglia      (11) William F. Truscott                [ ]    [ ]      [ ]   2.
   (04) Anne P. Jones          (08) Vikki L. Pryor

(INSTRUCTIONS: To withhold authority to vote for any individual nominee, mark
the "FOR ALL EXCEPT" box and write the nominee's number on the line below.)

                                                                                                        FOR  AGAINST  ABSTAIN
3. Approve an Amendment to the Articles of
   Incorporation.                                                                                       [ ]    [ ]      [ ]   3.

4. Approve an Investment Management Services Agreement with RiverSource Investments, LLC.               [ ]    [ ]      [ ]   4.

                                    PLEASE SIGN AND DATE ON THE REVERSE SIDE.



                                                     AMPF New Dimensions EZ - DH

                IF VOTING THE CONSOLIDATED PROXY CARD DO NOT SIGN, DATE OR RETURN THE INDIVIDUAL BALLOTS

                               INDIVIDUAL BALLOTS

NOTE: IF YOU HAVE USED THE CONSOLIDATED BALLOT ABOVE, DO NOT VOTE THE INDIVIDUAL BALLOTS BELOW.




     000 0000000000 000 0                                             000 0000000000 000 0
     JOHN Q. PUBLIC                                                   JOHN Q. PUBLIC
     123 MAIN STREET                                                  123 MAIN STREET
     ANYTOWN, MA 02030          999 999 999 999 99                    ANYTOWN, MA 02030          999 999 999 999 99
     RIVERSOURCE NEW DIMENSIONS FUND                                  RIVERSOURCE NEW DIMENSIONS FUND

                               FOR       AGAINST     ABSTAIN                                         FOR       AGAINST     ABSTAIN
                                                                   
1. Approve the Agreement                                              1. Approve the Agreement
   and Plan of                                                           and Plan of
   Reorganization.             [ ]         [ ]         [ ]               Reorganization.             [ ]         [ ]         [ ]

2. ELECTION OF BOARD                                                  2. ELECTION OF BOARD
   MEMBERS.                    FOR       WITHHOLD    FOR ALL             MEMBERS.                    FOR       WITHHOLD    FOR ALL
(See Nominee list on           ALL         ALL       EXCEPT*          (See Nominee list on           ALL         ALL       EXCEPT*
consolidated ballot.)                                                 consolidated ballot.)

*EXCEPT____________________    [ ]         [ ]         [ ]            *EXCEPT____________________    [ ]         [ ]         [ ]

                               FOR       AGAINST     ABSTAIN                                         FOR       AGAINST     ABSTAIN
3. Amend the Articles of                                              3. Amend the Articles of
   Incorporation.              [ ]         [ ]         [ ]               Incorporation.              [ ]         [ ]         [ ]

4. Approve Investment                                                 4. Approve Investment
   Management Services                                                   Management Services
   Agreement.                  [ ]         [ ]         [ ]               Agreement.                  [ ]         [ ]         [ ]

                                                    AMPF New Dimensions EZ - DH



AXP(R) DIMENSIONS SERIES, INC.
   - RiverSource(SM) New Dimensions Fund
     (formerly AXP New Dimensions Fund)

PROXY STATEMENT


                                                                   Dec. 16, 2005


HERE IS A BRIEF OVERVIEW OF THE CHANGES BEING RECOMMENDED FOR YOUR RIVERSOURCE
MUTUAL FUND. WE ENCOURAGE YOU TO READ THE FULL TEXT OF THE ENCLOSED PROXY
STATEMENT.


Q: WHAT CHANGES HAVE RECENTLY TAKEN PLACE?

On Sept. 30, the fund's investment manager, Ameriprise Financial, Inc.
("Ameriprise Financial") (formerly American Express Financial Corporation) was
spun off from its parent company, American Express Company. The investment
management functions were then moved to RiverSource Investments, LLC
("RiverSource Investments"), a wholly-owned subsidiary of Ameriprise Financial.
The Board of Directors ("Board") changed the name of each fund and the funds are
now listed in newspapers under RiverSource.


Q: WHY AM I BEING ASKED TO VOTE?


Mutual funds are required to get shareholders' approval for certain contracts
and certain kinds of changes, like the ones included in this proxy statement.


Q: IS MY VOTE IMPORTANT?


Absolutely! While the Board of each RiverSource Fund has reviewed these changes
and recommends you approve them, you have the right to voice your opinion. Until
the fund is sure that a quorum has been reached (50% of existing shares), it
will continue to contact shareholders asking them to vote. These efforts cost
money -- so please, vote immediately.


Q: WHAT AM I BEING ASKED TO VOTE ON?

Shareholders are being asked to vote on:

- -  The merger ("Reorganization") of RiverSource New Dimensions Fund and
   RiverSource Large Cap Equity Fund.

- -  Election of Board members.


- -  An amendment to the Fund's Articles of Incorporation to permit the Board to
   establish the minimum account value and to change the name of the corporation
   to "RiverSource" consistent with the name of the fund.

- -  An Investment Management Services Agreement ("IMS Agreement") with
   RiverSource Investments.


<Page>

We encourage you to read the full text of the proxy statement to obtain a more
detailed understanding of the issues.


Q: IF APPROVED, WHEN WILL THE REORGANIZATION HAPPEN?

If shareholders approve the Reorganization, it will take place shortly after the
shareholder meeting. In the interim, however, it will be important for the Fund
to have a properly elected Board and an IMS agreement that has been approved by
shareholders.


Q: WHAT DO BOARD MEMBERS DO?


Board members represent the interests of the shareholders and oversee the
management of the fund.


Q: WHAT CHANGES ARE PROPOSED TO THE INVESTMENT MANAGEMENT SERVICES AGREEMENT?


In September, the Fund's investment manager, Ameriprise Financial was spun off
from its parent company, American Express Company. The investment management
functions were then moved to RiverSource Investments, a wholly-owned subsidiary
of Ameriprise Financial. While this transfer did not cause a termination of the
IMS Agreement, or otherwise affect its terms and conditions, the Board
determined that it would be prudent to give shareholders an opportunity to vote
on the IMS Agreement. The IMSAgreement also clarifies the circumstances under
which the Board may change an index for purposes of calculating a performance
incentive adjustment.


Q: HOW DOES THE BOARD RECOMMEND THAT I VOTE?

After careful consideration, the Board recommends that you vote FOR each
proposal.

Q: HOW DO I VOTE?

You can vote in one of four ways:

- -  By mail with the enclosed proxy card

- -  By telephone

- -  By web site

- -  In person at the meeting

Please refer to the enclosed voting instruction card for the telephone number
and internet address.

Q: WHOM SHOULD I CALL IF I HAVE QUESTIONS?


If you have questions about any of the proposals described in the proxy
statement or about voting procedures, please call your financial advisor or call
client services toll free at (877) 256-6085.



                                RIVERSOURCE FUNDS

                   (formerly known as American Express Funds)

                           Principal Executive Office
                     901 Marquette Avenue South, Suite 2810
                           Minneapolis, MN 55402-3268

                   NOTICE OF A REGULAR MEETING OF SHAREHOLDERS
                            TO BE HELD FEB. 15, 2006

                            AXP(R) STOCK SERIES, INC.
                            - RiverSource Stock Fund
                           (formerly AXP Stock Fund)

RiverSource Stock Fund ("Stock" or the "Selling Fund") will hold a regular
shareholders' meeting at 10:00 a.m. on Feb. 15, 2006 at the IDS Center, 80 S.
Eighth Street, Minneapolis, MN on the 50th floor. At the meeting, shareholders
will consider the following proposals:

- -  To approve an Agreement and Plan of Reorganization (the "Agreement") between
   the Selling Fund and RiverSource Disciplined Equity Fund ("Disciplined
   Equity" or the "Buying Fund") (formerly AXP Quantitative Large Cap Equity
   Fund). Under this Agreement, the Selling Fund will transfer all of its assets
   attributable to Classes A, B, C, I and Y to the Buying Fund in exchange for
   corresponding Class A, B, C, I and Y shares of the Buying Fund. These shares
   will be distributed proportionately to you and the other shareholders of the
   Selling Fund. The Buying Fund will assume the Selling Fund's liabilities.

- -  To elect Board members.

- -  To amend the Articles of Incorporation.


- -  To approve an Investment Management Services Agreement ("IMS Agreement") with
   RiverSource Investments, LLC.


- -  Other business as may properly come before the meeting, or any adjournment of
   the meeting.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        1
<Page>


Please take some time to read the proxy statement. It discusses the proposals in
more detail. If you were a shareholder on Dec. 16, 2005, you may vote at the
meeting or any adjournment of the meeting. We hope you can attend the meeting.
For those of you who cannot attend, please vote by mail, telephone or internet.
Just follow the instructions on the enclosed proxy card. If you have questions,
please call your advisor or call client services toll free at (877) 256-6085. It
is important that you vote. The Board of Directors (the "Board") recommends that
you vote FOR each of the proposals. This proxy statement was first mailed to
shareholders on or about Dec. 16, 2005.


                                        By order of the Board of Directors


                                        Leslie L. Ogg, Secretary
                                        Dec. 16, 2005

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        2
<Page>

                       COMBINED PROXY STATEMENT/PROSPECTUS

                               DATED DEC. 16, 2005

This document is a proxy statement for Stock and a prospectus for Disciplined
Equity (each individually a "Fund" and collectively the "Funds"). It contains
the information you should know before voting on the proposals. Please read it
carefully and keep it for future reference. The address of each of the Funds is
901 Marquette Avenue South, Suite 2810, Minneapolis, MN 55402-3268. The phone
number for each of the Funds is (612) 330-9283.

The following information describes the proposed reorganization of the Selling
Fund into the Buying Fund (the "Reorganization").

HOW THE REORGANIZATION WILL WORK

- -  The Selling Fund will transfer all of its assets to the Buying Fund. The
   Buying Fund will assume the Selling Fund's liabilities.

- -  The Buying Fund will issue shares of Classes A, B, C, I and Y to the Selling
   Fund in an amount equal to the value of the assets of Classes A, B, C, I and
   Y that it receives from the Selling Fund, less the liabilities it assumes.
   These shares will be distributed to the Selling Fund's shareholders in
   proportion to their holdings in the Selling Fund. Selling Fund shareholders
   will not pay any sales charge in connection with this distribution of shares.

FUND INVESTMENT OBJECTIVES

The investment objective for each of the Funds is as follows:

   SELLING FUND:  The Fund seeks to provide shareholders with current income and
                  growth of capital.

   BUYING FUND:   The Fund seeks to provide shareholders with long-term capital
                  growth.

Please note that the Fund is not a bank deposit, is not federally insured, is
not endorsed by any bank or government agency and is not guaranteed to achieve
its investment objective.

As with all mutual funds, the Securities and Exchange Commission (the "SEC") has
not approved or disapproved these securities or passed on the adequacy of this
prospectus. Any representation to the contrary is a criminal offense.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        3
<Page>

WHERE TO GET MORE INFORMATION


<Table>
                                      
THE BUYING FUND

Most recent prospectus, dated Oct. 3,    Accompanying, and incorporated by reference into, this
2005.                                    proxy statement/prospectus.

Most recent annual report, for the       Incorporated by reference into this proxy
period ended July 31, 2005.              statement/prospectus. For a copy at no charge, call
                                         toll-free (800) 862-7919 or write to the address at the
                                         bottom of this table.

THE SELLING FUND

Most recent prospectus, dated Nov. 29,   Incorporated by reference into this proxy
2005.                                    statement/prospectus. For a copy at no charge, call
                                         toll-free (800) 862-7919 or write to the address at the
                                         bottom of this table.

Most recent annual report, for the       Incorporated by reference into this proxy
period ended Sept. 30, 2005.             statement/prospectus. For a copy at no charge, call
                                         toll-free (800) 862-7919 or write to the address at the
                                         bottom of this table.

THIS PROXY STATEMENT/PROSPECTUS

Statement of Additional Information      Incorporated by reference into this proxy
dated the same date as this proxy        statement/prospectus. For a copy at no charge,
statement/prospectus. This document      call toll-free (877) 256-6085 or write to
contains information about both the      the address at the bottom of this table.
Selling Fund and the Buying Fund.

To ask questions about this proxy        Call toll-free (877) 256-6085 or write to:
statement/prospectus.                    RiverSource Service Corporation,
                                         70100 Ameriprise Financial Center,
                                         Minneapolis, MN 55474.
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        4
<Page>

Each of the Funds is subject to the information requirements of the Securities
Exchange Act of 1934 and the Investment Company Act of 1940 (the "1940 Act") and
files reports, proxy materials and other information with the SEC. These
reports, proxy materials and other information can be inspected and copied at
the Public Reference Room maintained by the SEC. Copies may be obtained, after
paying a duplicating fee, by electronic request at
http://www.publicinfo@sec.gov, or by writing to the Public Reference Section of
the SEC, Washington, D.C. 20549-0102. In addition, copies of these documents may
be viewed on-line or downloaded from the SEC's Web site at http://www.sec.gov.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        5
<Page>

TABLE OF CONTENTS

                                                                           PAGE
SECTION A -- FUND PROPOSALS

   PROPOSAL 1. APPROVE OR REJECT THE AGREEMENT AND PLAN OF REORGANIZATION      7

   SUMMARY                                                                     7
      How the Reorganization Will Work                                         7
      Comparison of the Selling Fund and the Buying Fund                       7

      Risk Factors                                                            13

      Tax Consequences                                                        14


   FEES AND EXPENSES                                                          15

   THE REORGANIZATION                                                         20
      Terms of the Reorganization                                             20
      Conditions to Closing the Reorganization                                20
      Termination of the Agreement                                            21
      Tax Status of the Reorganization                                        21
      Reasons for the Proposed Reorganization and Board Deliberations         24
      Boards' Determinations                                                  26
      Recommendation and Vote Required                                        27

   PROPOSAL 2. ELECT BOARD MEMBERS                                            28

   PROPOSAL 3. APPROVE OR REJECT AN AMENDMENT TO THE ARTICLES OF
   INCORPORATION                                                              35

   PROPOSAL 4. APPROVE OR REJECT AN INVESTMENT MANAGEMENT SERVICES
   AGREEMENT WITH RIVERSOURCE INVESTMENTS, LLC                                37

SECTION B -- PROXY VOTING AND SHAREHOLDER MEETING INFORMATION                 45

SECTION C -- CAPITALIZATION, OWNERSHIP OF FUND SHARES AND OTHER FUND
INFORMATION                                                                   48


EXHIBITS
   A. Form of Agreement and Plan of Reorganization                           A.1
   B. Matters Subject to Approval at Regular Meeting of Buying Fund          B.1
   C. Minnesota Business Corporation Act Sections 302A.471 and 302A.473      C.1
   D. Most Recent Buying Fund Prospectus                                     D.1
   E. Board Effectiveness Committee Charter                                  E.1
   F. Joint Audit Committee Charter                                          F.1

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        6
<Page>

SECTION A -- FUND PROPOSALS

PROPOSAL 1. APPROVE OR REJECT THE AGREEMENT AND PLAN OF REORGANIZATION

SUMMARY


This proxy statement/prospectus is being used by the Selling Fund to solicit
proxies to vote at a meeting of shareholders. Shareholders will consider a
proposal to approve the Agreement providing for the Reorganization of the
Selling Fund into the Buying Fund. A form of the Agreement is included in
Exhibit A.


The following is a summary. More complete information appears later in this
proxy statement/prospectus. You should read the entire proxy
statement/prospectus and the exhibits because they contain details that are not
in the summary.

HOW THE REORGANIZATION WILL WORK

- -  The Selling Fund will transfer all of its assets to the Buying Fund. The
   Buying Fund will assume the Selling Fund's stated liabilities.


- -  The Buying Fund will issue shares of Classes A, B, C, I and Y to the Selling
   Fund in an amount equal to the value of the assets of Classes A, B, C, I and
   Y that it receives from the Selling Fund, less the liabilities it assumes.
   These shares will be distributed to the Selling Fund's shareholders in
   proportion to their holdings in the Selling Fund. If you already have a
   Buying Fund account, shares distributed in the Reorganization will be added
   to that account. As a result, when average cost is calculated for income tax
   purposes, the cost of the shares in the two accounts you owned will be
   combined.

- -  As part of the Reorganization, systematic transactions (such as bank
   authorizations and systematic payouts) currently set up for your Selling Fund
   account will be transferred to your new Buying Fund account. If you do not
   want your systematic transactions to continue, please contact your financial
   advisor to make changes.


- -  Neither the Selling Fund nor the shareholders of the Selling Fund will pay
   any sales charge in connection with the Reorganization.

- -  After the Reorganization is completed, current Selling Fund shareholders will
   be shareholders of the Buying Fund. The Selling Fund will be terminated.

COMPARISON OF THE SELLING FUND AND THE BUYING FUND

Both the Selling Fund and the Buying Fund:

- -  Are structured as a series of capital stock of an open-end management
   investment company organized as a Minnesota corporation.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        7
<Page>

- -  Have RiverSource Investments, LLC (the "investment manager" or "RiverSource
   Investments") as an investment adviser.

- -  Have the same policies for buying and selling shares and the same exchange
   rights.


- -  Have the same distribution policies, although the Selling Fund pays dividends
   quarterly and the Buying Fund pays dividends annually.

- -  Have different classes of shares: Classes A, B, C, I and Y.

COMPARISON OF INVESTMENT OBJECTIVES


The investment objectives for the Funds are as follows:

   SELLING FUND:  The Fund seeks to provide shareholders with current income and
                  growth of capital.

   BUYING FUND:   The Fund seeks to provide shareholders with long-term capital
                  growth.

COMPARISON OF INVESTMENT STRATEGIES


Although both Funds have adopted policies to invest at least 80% of net assets
in common stocks, the Selling Fund may also count securities convertible into
common stocks toward this 80% test. As part of its income objective, the Selling
Fund may invest in income-producing equity securities and short-term debt
instruments. Additionally, while the Buying Fund is run 100% as a quantitative
fund, where portfolio managers select stocks based on sophisticated statistical
analysis, the Selling Fund is run 50% using these same quantitative
methodologies and 50% using more traditional stock picking methodologies. Prior
to October 2005, a larger percentage of the Selling Fund was run using these
more traditional stock picking methodologies.

Detailed strategies for the Selling Fund and the Buying Fund are set forth
below:

STOCK (SELLING FUND):


The Fund's assets primarily are invested in common stocks and securities
convertible into common stocks. Under normal market conditions, at least 80% of
the Fund's net assets are invested in these securities. In pursuit of its income
objective, the Fund will invest in income-producing equity securities (such as
convertible securities and preferred stocks) and short-term debt instruments
(such as commercial paper). The Fund will provide shareholders with at least 60
days' notice of any change in the 80% policy.

In pursuit of the Fund's objective, the investment manager uses two different
approaches to the selection of equity investments.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        8
<Page>

With respect to approximately 50% of the Fund's portfolio, the investment
manager uses a traditional stock selection methodology and chooses investments
by:

- -  Considering opportunities and risks by reviewing overall market conditions
   and industry outlook.

- -  Identifying market trends that the investment manager believes will lead to
   good long-term growth potential.

- -  Identifying companies with strong, sustainable earnings growth based on:

   -  effective management, as demonstrated by overall performance,

   -  competitive market position, and

   -  financial strength.

- -  Focusing on those companies that the investment manager considers to be blue
   chips. Blue chip stocks are issued by companies with a market capitalization
   of at least $1 billion, an established management, a history of consistent
   earnings and a leading position within their respective industries.

- -  Identifying investments that contribute to portfolio diversification.

- -  Identifying income-producing securities.


In evaluating whether to sell a security, the investment manager considers,
among other factors, whether:


- -  The security is overvalued relative to other potential investments.

- -  The security has reached the investment manager's price objective.

- -  The company has met the investment manager's earnings and/or growth
   expectations.

- -  Political, economic or other events could affect the company's performance.

With respect to approximately 50% of the Fund's portfolio, the investment
manager uses proprietary quantitative methods based on sophisticated statistical
analysis and chooses investments by:

The universe of stocks from which the investment manager selects the Fund's
investments will be those included in the Fund's benchmark, the Standard &
Poor's 500 Index (S&P 500 Index). Through extensive analysis of the domestic
equity markets, the investment manager has identified characteristics of certain
stocks that have historically outperformed their benchmarks. The Fund will hold
both growth and value stocks. Characteristics used to select stocks for the Fund
include:

- -  Superior growth characteristics such as:

   -  strong earnings growth,

   -  positive earnings that exceed expectations published by third-party
      business analysts,

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                        9
<Page>

   -  consistency of earnings, and

   -  strong positive price trend.

- -  Superior value characteristics based on analysis of current stock prices
   relative to estimates of future prices.

In selecting the stocks from the S&P 500 Index for the Fund's portfolio, the
investment manager employs a rigorous process for evaluating the relationship
between the risk associated with each security and its potential for positive
returns. This process includes factors such as:

- -  Limits on positions relative to the benchmark through overweighting or
   underweighting.

- -  Limits on sector and industry allocations relative to the benchmark.

- -  Limits on size of holdings relative to market liquidity.


DISCIPLINED EQUITY (BUYING FUND):


Under normal market conditions, at least 80% of the Fund's net assets are
invested in equity securities of companies listed on U.S. exchanges with market
capitalizations greater than $5 billion at the time of purchase. The Fund will
provide shareholders with at least 60 days' notice of any change in the 80%
policy.

In pursuit of the Fund's objective, the investment manager will choose equity
investments by employing proprietary quantitative methods based on sophisticated
statistical analysis.

The universe of stocks from which the investment manager selects the Fund's
investments primarily will be those included in the Fund's benchmark, the S&P
500. Through extensive analysis of the domestic equity markets, the investment
manager has identified characteristics of certain stocks that have historically
outperformed their benchmarks. The Fund will hold both growth and value stocks.
Characteristics used to select stocks for the Fund include:

- -  Superior growth characteristics such as:

   -  strong earnings growth,

   -  positive earnings that exceed expectations published by third-party
      business analysts,

   -  consistency of earnings, and

   -  strong positive price trend.

- -  Superior value characteristics based on analysis of current stock prices
   relative to estimates of future prices.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       10
<Page>

In selecting the stocks for the Fund's portfolio, the investment manager employs
a rigorous process for evaluating the relationship between the risk associated
with each security and its potential for positive returns. This process includes
factors such as:

- -  Limits on positions relative to the benchmark through overweighting or
   underweighting.

- -  Limits on sector and industry allocations relative to the benchmark.

- -  Limits on size of holdings relative to market liquidity.


BOTH FUNDS:


- -  UNUSUAL MARKET CONDITIONS. During unusual market conditions, each of the
   Funds may temporarily invest more of its assets in money market securities
   than during normal market conditions. Although investing in these securities
   would serve primarily to avoid losses, this type of investing also could
   prevent the Fund from achieving its investment objective. During these times,
   the portfolio managers may make frequent securities trades that could result
   in increased fees, expenses and taxes, and decreased performance.

- -  OTHER INVESTMENT STRATEGIES. Each Fund may invest in other securities and may
   use other investment strategies that are not principal investment strategies.
   Additionally, each Fund may use derivatives (financial instruments where the
   value depends upon, or is derived from, the value of something else) such as
   futures, options and forward contracts, to produce incremental earnings, to
   hedge existing positions or to increase flexibility. Just as with securities
   in which the Fund invests directly, derivatives are subject to a number of
   risks, including market, liquidity, interest rate and credit risk. In
   addition, a relatively small price movement in the underlying security,
   currency or index may result in a substantial gain or loss for the Fund using
   derivatives. Even though the Fund's policies permit the use of derivatives in
   this manner, the portfolio managers are not required to use derivatives.

COMPARISON OF FUNDAMENTAL POLICIES

The Buying Fund shareholders will vote on changes to the fundamental policies
for the Buying Fund at a meeting scheduled to be held on the same day as the
Selling Fund shareholder meeting. The proposed changes are shown in Exhibit B.
If all of the proposed changes to the Buying Fund's fundamental policies are
approved, the differences in investment policies will be as follows:

Both Funds have substantially similar fundamental investment policies. The
Buying Fund has a policy permitting borrowing money for temporary purposes in an
amount not exceeding one-third of the market value of its total assets. The
Selling Fund has a similar policy that applies to money or property and permits
borrowing only for extraordinary or emergency purposes. The Buying Fund has a
policy prohibiting the issuing of senior securities, except as

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       11
<Page>

permitted under the 1940 Act. Even though this is not stated as a fundamental
policy of the Selling Fund, the Fund is nonetheless subject to that restriction
under the provisions of the 1940 Act.

The Buying Fund has a policy that it will not purchase more than 10% of the
outstanding voting securities of an issuer, except up to 25% of its total assets
may be invested without regard to this 10% limitation. The Selling Fund has a
similar policy, but does not have the 25% exception.


The Buying Fund has a policy that it will not invest more than 5% of its total
assets in securities of any one company, government or political subdivision
thereof, except the limitation will not apply to investments in securities
issued by the U.S. government, its agencies, or instrumentalities or other
investment companies, and except that up to 25% of its total assets may be
invested without regard to this 5% limitation. The Selling Fund has a similar
policy, but does not include other investment companies in the exception.

The Buying Fund has a policy permitting the Fund to lend fund securities and
participate in an interfund lending program up to 33 1/3% of the value of the
fund's total assets. This policy does not prohibit the Buying Fund from
purchasing money market securities, loans, loan participation or other debt
securities, or from entering into repurchase agreements. The Selling Fund has a
policy permitting the Selling Fund to lend fund securities up to 30% of its net
assets. In addition, the Selling Fund has a policy that it may make cash loans
up to 5% of its total assets. The Buying Fund has a policy prohibiting loans of
any part of its assets to the investment manager, its board members and officers
and to the board members and officers of the Buying Fund. Even though this is
not stated as the fundamental policy of the Selling Fund, the Fund is
nonetheless subject to that restriction under the provisions of the 1940 Act.


If shareholders of the Selling Fund approve the Reorganization, they will be
subject to the fundamental investment policies of the Buying Fund. The
investment manager does not believe that the differences between the fundamental
investment policies will result in any material difference in the way the Funds
are managed.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       12
<Page>

RISK FACTORS


The principal risks of investing in each of the Selling Fund and the Buying Fund
are similar. However, because more of its net assets are dedicated to
quantitative methodologies, the Buying Fund may have increased exposure to the
potential risks of such quantitative methodologies. These risks are highlighted
under Market Risk.

The principal risks associated with an investment in each of the Buying Fund and
the Selling Fund are shown below:



<Table>
<Caption>
RISK                                     STOCK               DISCIPLINED EQUITY
                                                       
Active Management Risk                     x                         x
Issuer Risk                                x                         x
Market Risk                                x                         x
</Table>


- -  ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance
   therefore will reflect in part the ability of the portfolio managers to make
   investment decisions that are suited to achieving the Fund's investment
   objective. Due to its active management, the Fund could underperform other
   mutual funds with similar investment objectives.


- -  ISSUER RISK. An issuer may perform poorly and therefore, the value of its
   stocks and bonds may decline. Poor performance may be caused by poor
   management decisions, competitive pressures, breakthroughs in technology,
   reliance on suppliers, labor problems or shortages, corporate restructurings,
   fraudulent disclosures, or other factors.


- -  MARKET RISK. The market value of securities may fall or fail to rise. Market
   risk may affect a single issuer, sector of the economy, industry, or the
   market as a whole. The market value of securities may fluctuate, sometimes
   rapidly and unpredictably. This risk is generally greater for small and
   mid-sized companies, which tend to be more vulnerable to adverse
   developments. In addition, focus on a particular style, for example,
   investment in growth or value securities, may cause the Fund to underperform
   other mutual funds if that style falls out of favor with the market. The
   quantitative methodology employed by the investment manager has been
   extensively tested using historical securities market data, but has only
   recently begun to be used to manage open-end mutual funds. There can be no
   assurance that the methodology will enable the Fund to achieve its objective.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       13
<Page>

PERFORMANCE

Performance information for Class A shares of the Funds is shown below.

TABLE A-1

AVERAGE ANNUAL TOTAL RETURNS AS OF SEPT. 30, 2005(a)


<Table>
<Caption>
                                                                    SINCE      INCEPTION
FUND                          1 YEAR         5 YEARS   10 YEARS   INCEPTION      DATE
                                                                
Stock                         6.11%          -3.66%      5.84%       N/A          N/A
Disciplined Equity            8.92%            N/A        N/A      13.09%      4/24/2003
</Table>


(a) Returns include the 5.75% Class A sales charge.


TAX CONSEQUENCES

The Reorganization is expected to be tax-free for federal income tax purposes
and will not take place unless the Selling Fund and the Buying Fund receive a
satisfactory opinion of tax counsel, substantially to that effect. Accordingly,
no gain or loss is expected to be recognized by the Selling Fund or its
shareholders as a direct result of the Reorganization. Prior to or after
completion of the Reorganization, no major sell-offs to realign the portfolio
are expected in relation to, or as a result of the Reorganization. However, the
Reorganization will end the tax year of the Selling Fund, and so it will
accelerate distributions from the Selling Fund for its short tax year ending on
the date of the Reorganization to shareholders. Those tax year-end
distributions, which are taxable, will also include any capital gains resulting
from portfolio turnover prior to the implementation of the Reorganization. At
any time prior to the consummation of the Reorganization a shareholder may
redeem shares. This would likely result in recognition of gain or loss to the
shareholder for federal income tax purposes.

The tax basis and holding period of the shareholders' Selling Fund shares are
expected to carry over to the shareholders' new shares in the Buying Fund.


For more information about the federal income tax consequences of the
Reorganization, see the section entitled "Tax Status of the Reorganization."




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       14
<Page>

FEES AND EXPENSES


The following table describes the fees and expenses, adjusted to reflect current
fees, that you pay if you buy and hold shares of the Selling Fund or shares of
the Buying Fund. The table also shows pro forma expenses of the Buying Fund
assuming the proposed Reorganization had been effective during the most recent
fiscal year, adjusted to reflect current fees. If shareholders approve the
Reorganization, for a period of 12 months following implementation of the
Reorganization, the investment manager and its affiliates have agreed to waive
fees or to cap expenses of the Buying Fund sufficient to keep total expenses
within 5 basis points (0.05%) of the Selling Fund's expense ratio at the time of
the Reorganization. For a period of 5 years following the 12-month period, the
investment manager and its affiliates have agreed to waive fees or to cap
expenses of the Buying Fund at the median expense ratio of the Buying Fund's
Lipper peer group. The level of the Buying Fund's expense cap will be reviewed
and reset annually by the Buying Fund's Board. For purposes of these
calculations, the expense ratio will be determined prior to application of the
performance incentive adjustment.

The fees and expenses below exclude the costs of this Reorganization as these
will be paid by Ameriprise Financial.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       15
<Page>


TABLE A-2


ACTUAL AND PRO FORMA FUND EXPENSES FOR THE MOST RECENT FISCAL YEAR

SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

<Table>
<Caption>
                                                 CLASS A     CLASS B   CLASS C    CLASS I   CLASS Y
                                                                             
Maximum sales charge (load) imposed on
purchases(a) as a percentage of offering price    5.75%        none      none       none      none

Maximum deferred sales charge (load)
imposed on sales (as a percentage of offering
price at time of purchase)                        none(b)         5%        1%      none      none
</Table>

ANNUAL FUND OPERATING EXPENSES (EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:


<Table>
<Caption>
                                          CLASS A    CLASS B    CLASS C    CLASS I    CLASS Y
                                                                       
STOCK (SELLING FUND)(c)
Management fees(d)                         0.48%      0.48%      0.48%      0.48%      0.48%
Distribution (12b-1) fees                  0.25%      1.00%      1.00%      0.00%      0.00%
Other expenses(e)                          0.20%      0.23%      0.23%      0.10%      0.29%
Total                                      0.93%      1.71%      1.71%      0.58%      0.77%

DISCIPLINED EQUITY (BUYING FUND)
Management fees(f)                         0.62%      0.62%      0.62%      0.62%      0.62%
Distribution (12b-1) fees                  0.25%      1.00%      1.00%      0.00%      0.00%
Other expenses(e)                          0.49%      0.52%      0.52%      0.29%      0.57%
Total                                      1.36%      2.14%      2.14%      0.91%      1.19%
Fee waiver/expense reimbursement           0.09%      0.08%      0.06%      0.00%      0.11%
Net expenses(g)                            1.27%      2.06%      2.08%      0.91%      1.08%

DISCIPLINED EQUITY - PRO FORMA WITH STOCK
Management fees(f)                         0.60%      0.60%      0.60%      0.60%      0.60%
Distribution (12b-1) fees                  0.25%      1.00%      1.00%      0.00%      0.00%
Other expenses(i)                          0.21%      0.24%      0.23%      0.09%      0.29%
Total                                      1.06%      1.84%      1.83%      0.69%      0.89%
Fee waiver/expense reimbursement           0.04%      0.04%      0.04%      0.03%      0.03%
Net expenses(h)                            1.02%      1.80%      1.79%      0.66%      0.86%
</Table>


NOTES TO ANNUAL FUND OPERATING EXPENSES.

(a) This charge may be reduced depending on the value of your total investments
    in RiverSource funds.

(b) For Class A purchases over $1,000,000 on which no sales charge is assessed,
    a 1% sales charge may apply if you sell your shares within one year after
    purchase.

(c) Stock is a feeder fund that is part of a master/feeder structure. For Stock,
    both in this table and the following example fund operating expenses include
    expenses charged by both the Fund and its master portfolio.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       16
<Page>

NOTES TO ANNUAL FUND OPERATING EXPENSES (CONTINUED).


(d) The management fee rate is the actual fee rate charged as of fiscal year
    ended Sept. 30, 2005. It includes the impact of a performance incentive
    adjustment fee that decreased the management fee by 0.02% for the fiscal
    year ended Sept. 30, 2005 for Stock. The index against which Stock's
    performance is measured for purposes of determining the performance
    incentive adjustment is the Lipper Large-Cap Core Funds Index.


(e) Other expenses include an administrative services fee, a transfer agency
    fee, a custody fee and other nonadvisory expenses and, for Class Y shares, a
    shareholder service fee. The other expense ratios shown in this chart have
    been adjusted to reflect the new administrative fee that went into effect in
    Oct. 2005.

(f) The management fee ratio shown reflects what the ratio would be based on the
    Fund's average net assets as of July 31, 2005 under the proposed management
    fee schedule. The ratio includes the impact of a performance incentive
    adjustment fee that increased the management fee by .02% for the most recent
    fiscal year for Disciplined Equity. The index against which Disciplined
    Equity's performance is measured for purposes of determining the performance
    incentive adjustment is the Lipper Large-Cap Core Funds Index.

(g) For Disciplined Equity, the investment manager and its affiliates have
    contractually agreed to waive certain fees and to absorb certain expenses
    until July 31, 2006, unless sooner terminated at the discretion of the
    Fund's Board. Any amounts waived will not be reimbursed by the Fund. Under
    this agreement, net expenses, before giving effect to any performance
    incentive adjustment (.02% increase for the most recent fiscal year), will
    not exceed 1.25% for Class A, 2.04% for Class B, 2.06% for Class C, 0.93%
    for Class I and 1.06% for Class Y.


(h) If shareholders approve the Reorganization, the investment manager and its
    affiliates have contractually agreed to waive certain fees and to absorb
    certain expenses for six years following implementation of the
    Reorganization, unless sooner terminated at the discretion of the Fund's
    Board. Any amounts waived will not be reimbursed by the Fund. Under this
    agreement, in year one, net expenses, before giving effect to any
    performance incentive adjustment (.02% increase for the most recent fiscal
    year), will not exceed 1.00% for Class A, 1.78% for Class B, 1.77% for Class
    C, 0.64% for Class I and 0.84% for Class Y. In years two through six after
    the merger, expense caps of the Buying Fund will be at the median expense
    ratio of the Buying Fund Lipper peer group reviewed and reset annually by
    the Board.

(i) Other expenses include an administrative services fee, a transfer agency
    fee, a custody fee and other nonadvisory expenses and, for Class Y shares, a
    shareholder service fee. The other expense ratios shown have been adjusted
    to reflect the new administrative fee that went into effect in October 2005.
    In addition, these ratios have been adjusted to reflect closed account fees
    for accounts that will be closed following the Reorganization.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       17
<Page>

EXAMPLE: These examples are intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds.

These examples assume that you invest $10,000 in the Fund for the time periods
indicated and then redeem all of your shares at the end of those periods
indicated under the current arrangements and if the proposed Reorganization had
been in effect. These examples also assume that your investment has a 5% return
each year and that the Fund's operating expenses remain the same. Although your
actual costs may be higher or lower, based on these assumptions your costs would
be:


<Table>
<Caption>
FUND                                             1 YEAR         3 YEARS         5 YEARS         10 YEARS
                                                                                    
STOCK (SELLING FUND)
Class A(a)                                        $664           $  855          $1,061          $1,656
Class B                                           $674(b)        $  939(b)       $1,129(b)       $1,817(c)
Class C                                           $274(b)        $  539          $  929          $2,024
Class I                                           $ 59           $  186          $  324          $  729
Class Y                                           $ 79           $  246          $  429          $  958

DISCIPLINED EQUITY (BUYING FUND)(d)
Class A(a)                                        $697           $  973          $1,270          $2,113
Class B                                           $709(b)        $1,063(b)       $1,343(b)       $2,272(c)
Class C                                           $311(b)        $  665          $1,145          $2,472
Class I                                           $ 93           $  290          $  505          $1,124
Class Y                                           $110           $  367          $  645          $1,438

DISCIPLINED EQUITY - PRO FORMA WITH STOCK(d)
Class A(a)                                        $673           $  887          $1,119          $1,786
Class B                                           $683(b)        $  973(b)       $1,189(b)       $1,945(c)
Class C                                           $282(b)        $  572          $  988          $2,150
Class I                                           $ 67           $  218          $  382          $  859
Class Y                                           $ 88           $  281          $  491          $1,098
</Table>


(a) Includes a 5.75% sales charge.

(b) Includes the applicable contingent deferred sales charge.

(c) Based on conversion of Class B shares to Class A shares in the ninth year of
    ownership.

(d) Includes new expense waivers in year 1 only.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       18
<Page>

You would pay the following expenses if you did not redeem your shares.


<Table>
<Caption>
FUND                                             1 YEAR          3 YEARS         5 YEARS        10 YEARS
                                                                                    
STOCK (SELLING FUND)
Class A(a)                                        $664             $855           $1,061          $1,656
Class B                                           $174             $539           $  929          $1,817(c)
Class C                                           $174             $539           $  929          $2,024
Class I                                           $ 59             $186           $  324          $  729
Class Y                                           $ 79             $246           $  429          $  958

DISCIPLINED EQUITY (BUYING FUND)(c)
Class A(a)                                        $697             $973           $1,270          $2,113
Class B                                           $209             $663           $1,143          $2,272(b)
Class C                                           $211             $665           $1,145          $2,472
Class I                                           $ 93             $290           $  505          $1,124
Class Y                                           $110             $367           $  645          $1,438

DISCIPLINED EQUITY - PRO FORMA WITH STOCK(c)
Class A(a)                                        $673             $887           $1,119          $1,786
Class B                                           $183             $573           $  989          $1,945(b)
Class C                                           $182             $572           $  988          $2,150
Class I                                           $ 67             $218           $  382          $  859
Class Y                                           $ 88             $281           $  491          $1,098
</Table>


(a) Includes a 5.75% sales charge.

(b) Based on conversion of Class B shares to Class A shares in the ninth year of
    ownership.

(c) Includes new expense waivers for year 1 only.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       19
<Page>

THE REORGANIZATION

TERMS OF THE REORGANIZATION

The Board has approved the Agreement, a copy of which is attached as Exhibit A.
The Agreement provides for Reorganization on the following terms:

- -  The Reorganization is scheduled to occur on the first day that the New York
   Stock Exchange is open for business following shareholder approval and
   receipt of any necessary regulatory approvals, but may occur on any later
   date agreed to by the Selling Fund and the Buying Fund.

- -  The Selling Fund will transfer all of its assets to the Buying Fund and, in
   exchange, the Buying Fund will assume the Selling Fund's stated liabilities.

- -  The Buying Fund will issue Class A, B, C, I and Y shares to the Selling Fund
   in an amount equal to the value of the assets of Classes A, B, C, I and Y
   that it receives from the Selling Fund, less the liabilities assumed by the
   Buying Fund in the transaction. These shares will immediately be distributed
   by the Selling Fund to its shareholders in proportion to their holdings in
   the Selling Fund. As a result, shareholders of the Selling Fund will become
   Class A, B, C, I or Y shareholders of the Buying Fund.

- -  Neither the Selling Fund nor the shareholders of the Selling Fund will pay
   any sales charge in connection with the Reorganization.

- -  The net asset value of the Selling Fund and the Buying Fund will be computed
   as of 3:00 p.m. Central time, on the closing date.

- -  After the Reorganization, the Selling Fund will be terminated.

CONDITIONS TO CLOSING THE REORGANIZATION

The completion of the Reorganization is subject to certain conditions described
in the Agreement, including:

- -  The Selling Fund will have declared and paid a dividend that will distribute
   all of the Fund's taxable income, if any, to the shareholders of the Fund for
   the taxable years ending at or prior to the closing.

- -  The Funds will have received any approvals, consents or exemptions from the
   SEC or any regulatory body necessary to carry out the Reorganization.

- -  A registration statement on Form N-14 will have been filed with the SEC and
   declared effective.

- -  The shareholders of the Selling Fund will have approved the Agreement.

- -  The Selling Fund will have received an opinion of tax counsel that the
   proposed Reorganization will result in no gain or loss being recognized by
   any shareholder.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       20
<Page>

TERMINATION OF THE AGREEMENT

The Agreement and the transactions contemplated by it may be terminated and
abandoned by resolutions of the Board of the Selling Fund or the Buying Fund at
any time prior to closing. In the event of a termination, there will be no
liability for damages on the part of either the Selling Fund or the Buying Fund
or the Board members, officers or shareholders of the Selling Corporation or of
the Buying Corporation.

TAX STATUS OF THE REORGANIZATION

The Reorganization is expected to be tax-free for federal income tax purposes
and will not take place unless the Selling Fund and the Buying Fund receive a
satisfactory opinion of tax counsel (which opinion will be based on certain
factual representations and certain customary assumptions), to the effect that,
although not entirely free from doubt, on the basis of existing provisions of
the Internal Revenue Code of 1986, as amended (the "Code"):

- -  The transfer of the Selling Fund's assets to the Buying Fund in exchange for
   Class A, B, C, I and Y shares of the Buying Fund and the assumption of the
   Selling Fund's liabilities, followed by the distribution of those Class A, B,
   C, I and Y shares to the Selling Fund's shareholders and the termination of
   the Selling Fund will be a "reorganization" within the meaning of Section
   368(a)(1) of the Code, and the Selling Fund and the Buying Fund will each be
   a "party to the reorganization" within the meaning of Section 368(b) of the
   Code.

- -  Under Section 361 of the Code, no gain or loss will be recognized by the
   Selling Fund upon the transfer of all of its assets to the Buying Fund or on
   the distribution by the Selling Fund of Class A, B, C, I and Y shares of the
   Buying Fund to Selling Fund shareholders in liquidation.

- -  Under Section 354 of the Code, the shareholders of the Selling Fund will not
   recognize gain or loss upon the exchange of their Class A, B, C, I or Y
   shares of the Selling Fund solely for Buying Fund Class A, B, C, I or Y
   shares as part of the Reorganization.

- -  Under Section 358 of the Code, the aggregate basis of the Class A, B, C, I or
   Y shares of the Buying Fund that a Selling Fund shareholder receives in the
   Reorganization will be the same as the aggregate basis of the Class A, B, C,
   I or Y shares of the Selling Fund exchanged therefor.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       21
<Page>

- -  Under Section 1223(1) of the Code, the holding period for the Class A, B, C,
   I or Y shares of the Buying Fund that a Selling Fund shareholder receives in
   the Reorganization will include the period for which he or she held the Class
   A, B, C, I or Y shares of the Selling Fund exchanged therefor, provided that
   on the date of the exchange he or she held such Selling Fund shares as
   capital assets.

- -  Under Section 1032 of the Code, no gain or loss will be recognized by the
   Buying Fund upon the receipt of the Selling Fund's assets solely in exchange
   for the issuance of Buying Fund's Class A, B, C, I and Y shares to the
   Selling Fund and the assumption of all of the Selling Fund's liabilities by
   the Buying Fund.

- -  Under Section 362(b) of the Code, the Buying Fund's tax basis in the assets
   that the Buying Fund receives from the Selling Fund will be the same as the
   Selling Fund's tax basis in those assets immediately prior to the transfer.

- -  Under Section 1223(2) of the Code, the Buying Fund's holding periods in the
   assets received from the Selling Fund will include the Selling Fund's holding
   periods in such assets.

- -  Under Section 381 of the Code, the Buying Fund will succeed to and take into
   account the items of the Selling Fund described in Section 381(c) of the
   Code, subject to the conditions and limitations specified in Sections 381,
   382, 383 and 384 of the Code and Regulations thereunder.

Tax counsel will express no view with respect to the effect of the
Reorganization on any transferred asset as to which any unrealized gain or loss
is required to be recognized at the end of a taxable year (or on the termination
or transfer thereof) under federal income tax principles.

Prior to the closing of the Reorganization, the Selling Fund will, and the
Buying Fund may, declare a distribution to shareholders, which together with all
previous distributions, will have the effect of distributing to shareholders all
of its investment company taxable income (computed without regard to the
deduction for dividends paid) and net realized capital gains (after reduction by
any available capital loss carryforwards), if any, through the closing of the
Reorganization. These distributions will be taxable to shareholders.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       22
<Page>

A fund's ability to carry forward capital losses and use them to offset future
gains may be limited. First, one fund's "pre-acquisition losses" (including
capital loss carryforwards, net current-year capital losses, and unrealized
losses that exceed certain thresholds) cannot be used to offset unrealized gains
in another fund that are "built in" at the time of the reorganization and that
exceed certain thresholds ("non-de minimis built-in gains") for five tax years.
Second, a portion of a fund's pre-acquisition losses may become unavailable to
offset any gains at all. Third, any remaining pre-acquisition losses will offset
capital gains realized after a reorganization and thus will reduce subsequent
capital gain distributions to a broader group of shareholders than would have
been the case absent such reorganization. Therefore, in certain circumstances,
former shareholders of a fund may pay taxes sooner, or pay more taxes, than they
would have had a reorganization not occurred.

The Buying Fund's ability to carry forward its own pre-acquisition losses, if
any, and use them to offset future gains will technically be limited as a result
of the Reorganization due to the effect of loss limitation rules under
applicable tax law. The effect of this limitation will depend on the losses and
gains in each fund at the time of the Reorganization. For example, based on data
as of Aug. 31, 2005, such limitation would have had no impact at all as neither
the Buying Fund nor the Selling Fund had pre-Reorganization "net losses" (i.e.,
capital loss carryforwards as of its last fiscal year end as adjusted by
year-to-date realized gains or losses and all net unrealized gains).

For five years beginning after the closing date, the combined fund will not be
allowed to offset gains "built in" to either fund at the time of the
Reorganization against capital losses (including capital loss carryforwards)
built in to the other fund.

The realized and unrealized gains and losses of each Fund at the time of the
Reorganization will determine the extent to which the combining Funds'
respective losses, both realized and unrealized, will be available to reduce
gains realized by the combined Fund following the Reorganization, and
consequently the extent to which the combined Fund may be required to distribute
gains to its shareholders earlier than would have been the case absent the
Reorganization.

This description of the federal income tax consequences of the Reorganization
does not take into account your particular facts and circumstances. Consult your
own tax adviser about the effect of state, local, foreign, and other tax laws.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       23
<Page>

REASONS FOR THE PROPOSED REORGANIZATION AND BOARD DELIBERATIONS


The Board believes that the proposed Reorganization will be advantageous to
Selling Fund shareholders based on its considerations of the following matters:


- -  TERMS AND CONDITIONS OF THE REORGANIZATION. The Board considered the terms
   and conditions of the Reorganization as described in the previous paragraphs.

- -  TAX CONSEQUENCES. The Board considered the tax-free nature of the
   Reorganization.


- -  CONTINUITY OF INVESTMENT. The Board took into account the fact that, because
   the Selling Fund is substantially larger than the Buying Fund, the portfolio
   of the combined Fund, following the Reorganization, will be represented
   mostly by the current holdings of the Selling Fund. The Board also considered
   the compatibility of the two portfolios. While the Board recognized that the
   two Funds have different investment objectives (e.g., the Selling Fund,
   unlike the Buying Fund, seeks current income in addition to capital growth)
   and different approaches (as half of the Selling Fund's portfolio is managed
   using a different strategy than that employed for the Buying Fund), the Board
   took into account the general compatibility of the two portfolios in that
   both Funds invest primarily in a portfolio of large cap stocks and are
   managed using the same benchmarks. The Board also took into account, in this
   regard, that like the Selling Fund (and consistent with the income element of
   its objective), a large percentage of the Buying Fund's portfolio consists of
   dividend-paying stocks.

- -  EXPENSE RATIOS. The Board considered the relative expenses of the Funds and
   took into account that, as of the end of each Fund's most recent fiscal year,
   the expense ratios for the Buying Fund were higher than the expense ratios
   for the Selling Fund. For example, the Selling Fund's expense ratio for Class
   A shares as of Sept. 30, 2005 fiscal year end, adjusted to reflect current
   fees after giving effect to the performance incentive adjustment was 0.93%
   (0.95%, before giving effect to any performance incentive adjustment). The
   Buying Fund's expense ratio for Class A shares as of July 31, 2005, its most
   recent fiscal year end, adjusted to reflect current fees, was capped at
   1.25%, before giving effect to any performance adjustment (1.27% after giving
   effect to the performance incentive adjustment). The Board accorded weight to
   the fact that, if shareholders approve the Reorganization, the investment
   manager has agreed to cap total expenses of the Buying Fund as follows: (i)
   for a period of 12 months following implementation of the Reorganization, the
   investment manager and its affiliates will waive fees or cap expenses of the
   Buying Fund sufficient to keep total expenses within 5 basis points (0.05%)
   of the Selling Fund's expense ratio at the time of the Reorganization; and
   (ii) for a period of 5 years following the 12-month period, the investment


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       24
<Page>


   manager and its affiliates will waive fees or cap expenses so that the Buying
   Fund's expense ratio is at or below the median expense ratio of comparable
   funds sold through investment advisers in the Buying Fund's Lipper peer
   group. (For purposes of these calculations, the expense ratio will be
   determined prior to application of the performance incentive adjustment.) The
   Board further accorded weight to the fact that the Buying Fund's current
   expense ratio was below the median expense ratio of its Lipper peer group and
   that, as a result, the current pricing of the Fund was in line with the
   "pricing philosophy" of the RiverSource Fund family.

- -  ECONOMIES OF SCALE. The Board believes that by combining the Funds, the
   shareholders continue to have available to them a Fund with a portfolio of
   larger capitalization stocks, but can at the same time take advantage of the
   economies of scale associated with a larger fund. Furthermore, a larger fund
   should have an enhanced ability to effect portfolio transactions on more
   favorable terms and should have greater investment flexibility. For example,
   expenses such as audit expenses and accounting expenses that are charged on a
   per fund basis will be reduced. In addition, if shareholders approve the
   Reorganization, the investment manager and its affiliates have agreed to cap
   total expenses of the Buying Fund as discussed in the paragraph on Expense
   Ratios.

- -  COSTS. The Board considered the fact that the investment manager has agreed
   to bear all solicitation expenses in order to achieve shareholder approval of
   the Reorganization and to bear any other costs of effecting the
   Reorganization (i.e., the filing, closing and other costs of consummating the
   transaction).

- -  DILUTION. The Board considered the fact that the Reorganization will not
   dilute the interests of the current shareholder because it would be effected
   on the basis of the relative net asset values per share of the Selling Fund
   and Buying Fund, respectively. Thus, a Class A shareholder of the Selling
   Fund will receive Class A shares of the Buying Fund equal in value to his or
   her Class A shares in the Selling Fund.

- -  PERFORMANCE AND OTHER CONSIDERATIONS. The Board considered the relative
   performance records of the Funds. The Board took into account the better
   track record of the Buying Fund. The Board recognized that the Buying Fund's
   track record covers a brief period because the Fund has only been in
   operation since April 2003. While the Board was cognizant of the fact that
   the Buying Fund's past performance is no guarantee of its future results, it
   did consider that the better track record of the Buying Fund (albeit a brief
   history), could help attract more assets into the combined Fund and therefore
   could help stem the stream of outflows that have been experienced by the
   Selling Fund. The Board considered that reduced outflows or increased inflows
   could help the Selling Fund shareholders achieve further economies of scale
   (see "Economies of Scale"above).


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       25
<Page>


   The Board also considered the fact that the Funds are in the same Lipper and
   Morningstar categories and that half of the Selling Fund portfolio is managed
   in an identical way to the Buying Fund. In light of these commonalities, the
   Board accorded weight to the investment manager's belief that, absent the
   Reorganization, the two Funds would be likely to compete against each other
   for the same investor base and, thus, could draw assets away from the other
   Fund. The Reorganization should allow for a concentrated selling effort
   thereby potentially benefiting both Funds. The Board further took into
   account the investment manager's belief that the Selling Fund, as a
   stand-alone Fund, was unlikely to experience any growth in assets as a result
   of investor inflows (based particularly on the recent rates of monthly
   outflows).

- -  POTENTIAL BENEFITS TO THE INVESTMENT MANAGER AND ITS AFFILIATES. The Board
   also considered the potential benefits from the Reorganization that could be
   realized by the investment manager and its affiliates. The Board recognized
   that the potential benefits to the investment manager consist principally of
   the elimination of expenses incurred in duplicative efforts to administer
   separate funds. The Board also noted, however, that shareholders of the
   Selling Fund will benefit over time from any decrease in overall operating
   expense ratios resulting from the proposed Reorganization.


BOARDS' DETERMINATIONS


After considering the factors described above and other relevant information, at
a meeting held on Nov. 9-10, 2005, the Selling Fund Board members, including a
majority of the independent Board members, found that participation in the
Reorganization is in the best interests of the Selling Fund and that the
interests of existing shareholders of the Fund will not be diluted as a result
of the Reorganization.

The Board of Directors of the Buying Fund approved the Agreement at a meeting
held on Nov. 9-10, 2005. Among other factors, the Board members considered the
terms of the Agreement, the provisions intended to avoid the dilution of
shareholder interests and the anticipated tax consequences of the
Reorganization. The Board also took into account that the Buying Fund expense
ratio will decline as a result of Reorganization. The Board found that
participation in the Reorganization is in the best interests of the Buying Fund
and that the interests of existing shareholders of the Buying Fund will not be
diluted as a result of the Reorganization.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       26
<Page>

RECOMMENDATION AND VOTE REQUIRED

The Board recommends that shareholders approve the proposed Agreement. The
Agreement must be approved by a majority of the voting power of all shares
entitled to vote. If the Agreement is not approved, the Board will consider what
further action should be taken.


If shareholders approve the Reorganization, it will take place shortly after the
shareholder meeting. During the period between the shareholder meeting and the
merger, or if the merger is not approved, it will be important for the Fund to
have a properly elected Board and an IMS Agreement that has been approved by
shareholders. Therefore, the Board is recommending that shareholders approve the
other proposals.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       27
<Page>

PROPOSAL 2. ELECT BOARD MEMBERS


REFERENCE TO THE 'FUND' IN THIS PROPOSAL IS A REFERENCE TO STOCK.

NOMINEES FOR THE BOARD. Nominees are listed in the following table. Each person
is a nominee for each of the 90 RiverSource Funds. The following nominees were
elected as members of the Board at the last regular shareholders' meeting: Mr.
Arne H. Carlson, Ms. Anne P. Jones, Mr. Stephen R. Lewis, Jr., Mr. Alan K.
Simpson, Ms. Alison Taunton-Rigby and Mr. William F. Truscott. The following
nominees are recommended for the position of Board member by the independent
Board members: Ms. Kathleen Blatz, Ms. Patricia M. Flynn, Mr. Jeffrey Laikind,
Ms. Catherine James Paglia and Ms. Vikki L. Pryor.

Each Board member will serve until the next regular shareholders' meeting or
until he or she reaches the mandatory retirement age established by the Board.
Under the current Board policy, members may serve until the end of the meeting
following their 75th birthday, or the fifteenth anniversary of the first Board
meeting they attend as members of the Board, whichever occurs first. This policy
does not apply to Ms. Jones, who may retire following her 75th birthday.


All nominees have agreed to serve. If an unforeseen event prevents a nominee
from serving, your votes will be cast for the election of a substitute selected
by the Board. Information on each nominee follows. Election requires a vote by a
majority of the fund's shares voted at the meeting.

TABLE A-3. INDEPENDENT NOMINEES


<Table>
<Caption>
NAME,                        POSITION HELD WITH
ADDRESS,                     FUND AND LENGTH        PRINCIPAL OCCUPATION
AGE                          OF SERVICE             DURING PAST FIVE YEARS     OTHER DIRECTORSHIPS       COMMITTEE MEMBERSHIPS
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Kathleen Blatz               Board member           Chief Justice, Minnesota
901 S. Marquette Ave.        since January 2006     Supreme Court, 1998-2005
Minneapolis, MN 55402
Age 51
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       28
<Page>

INDEPENDENT NOMINEES (CONTINUED)


<Table>
<Caption>
NAME,                        POSITION HELD WITH
ADDRESS,                     FUND AND LENGTH OF     PRINCIPAL OCCUPATION
AGE                          SERVICE                DURING PAST FIVE YEARS     OTHER DIRECTORSHIPS       COMMITTEE MEMBERSHIPS
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Arne H. Carlson              Board member           Chair, Board Services                                Contracts,
901 S. Marquette Ave.        since 1999             Corporation (provides                                Executive,
Minneapolis, MN 55402                               administrative services                              Investment Review,
Age 71                                              to boards); former                                   Board Effectiveness
                                                    Governor of Minnesota

Patricia M. Flynn            Board member           Trustee Professor of                                 Investment Review,
901 S. Marquette Ave.        since 2004             Economics and Management,                            Joint Audit
Minneapolis, MN 55402                               Bentley College; former
Age 54                                              Dean, McCallum Graduate
                                                    School of Business,
                                                    Bentley College

Anne P. Jones                Board member           Attorney and consultant                              Joint Audit, Board
901 S. Marquette Ave.        since 1985                                                                  Effectiveness,
Minneapolis, MN 55402                                                                                    Executive,
Age 70                                                                                                   Investment Review

Jeffrey Laikind              Board member           Former Managing Director,  American Progressive
901 S. Marquette Ave.        since 2005             Shikiar Asset Management   Insurance
Minneapolis, MN 55402
Age 70

Stephen R. Lewis, Jr.        Board member           President Emeritus and     Valmont Industries, Inc.  Contracts,
901 S. Marquette Ave.        since 2002             Professor of Economics,    (manufactures irrigation  Investment Review,
Minneapolis, MN 55402                               Carleton College           systems)                  Executive, Board
Age 65                                                                                                   Effectiveness
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       29
<Page>

INDEPENDENT NOMINEES (CONTINUED)


<Table>
<Caption>
NAME,                        POSITION HELD WITH
ADDRESS,                     FUND AND LENGTH OF     PRINCIPAL OCCUPATION
AGE                          SERVICE                DURING PAST FIVE YEARS      OTHER DIRECTORSHIPS       COMMITTEE MEMBERSHIPS
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                              
Catherine James Paglia       Board member           Director, Enterprise Asset  Strategic Distribution,   Contracts, Investment
901 S. Marquette Ave.        since 2004             Management, Inc. (private   Inc. (transportation,     Review
Minneapolis, MN 55402                               real estate and asset       distribution and
Age 53                                              management company)         logistics consultants)

Vikki L. Pryor                                      President and Chief
901 S. Marquette Ave.                               Executive Officer, SBLI
Minneapolis, MN 55402                               USA Mutual Life Insurance
Age 52                                              Company, Inc. since 1999

Alan K. Simpson              Board member           Former three-term United                              Investment Review,
1201 Sunshine Ave.           since 1997             States Senator for Wyoming                            Board Effectiveness
Cody, Wyoming 82414
Age 74

Alison Taunton-Rigby         Board member           Chief Executive Officer,    Hybridon, Inc.            Investment Review,
901 S. Marquette Ave.        since 2002             RiboNovix, Inc. since 2003  (biotechnology)           Contracts
Minneapolis, MN 55402                               (biotechnology); former
Age 61                                              President, Forester
                                                    Biotech
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       30
<Page>


TABLE A-4. NOMINEE AFFILIATED WITH RIVERSOURCE INVESTMENTS



<Table>
<Caption>
NAME,
ADDRESS,
AGE
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                             
William F. Truscott*         Board member           President - U.S Asset
53600 Ameriprise             since 2001,            Management and Chief
Financial Center             Vice President         Investment Officer,
Minneapolis, MN 55474        since 2002             Ameriprise Financial,
Age 45                                              Inc. and President,
                                                    Chairman of the Board and
                                                    Chief Investment Officer,
                                                    RiverSource Investments,
                                                    LLC since 2005; Senior
                                                    Vice President - Chief
                                                    Investment Officer,
                                                    Ameriprise Financial,
                                                    Inc. and Chairman of the
                                                    Board and Chief
                                                    Investment Officer,
                                                    RiverSource Investments,
                                                    LLC, 2001-2005; former
                                                    Chief Investment Officer
                                                    and Managing Director,
                                                    Zurich Scudder Investments
</Table>


*  Interested person by reason of being an officer, director, securityholder
   and/or employee of RiverSource Investments.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       31
<Page>

BOARD COMMITTEES. The Board has several committees that facilitate the work of
the Board. The Executive Committee has authority to act for the full Board
between meetings. The Contracts Committee receives and analyzes reports covering
the level and quality of services provided under contracts with the fund and
advises the Board regarding actions taken on these contracts during the annual
review process. The Investment Review Committee considers investment management
policies and strategies; investment performance; risk management techniques; and
securities trading practices and reports areas of concern to the Board.

The Board Effectiveness Committee's charter, Exhibit E, requires it to make
recommendations regarding nominees based on criteria approved by the Board. All
members of the Committee are independent. Nominee recommendations are based on a
matrix of skill sets, experience, and geographical location and each nominee
must have a background that demonstrates the ability to furthering the interest
of all shareholders. The Committee will consider recommendations from
shareholders who write to the Boards and provide detailed information about a
candidate. All candidates are processed in the same fashion; first by evaluating
a candidate's detailed information against the criteria; then interviewing those
candidates who best fill vacancies identified by the matrix.


You may write the Board by addressing a letter to Arne H. Carlson, the
independent Chair of the Board or any other independent member of the Board, at
Board Services Corporation, 901 Marquette Avenue South, Suite 2810, Minneapolis,
MN 55402-3268. However, do not address letters to this address if you are
requesting some action regarding your investments. In order to avoid any delay
in processing a request regarding an investment, please address these requests
to 70100 Ameriprise Financial Center, Minneapolis, MN 55474.


The Joint Audit Committee, made up entirely of independent Board members,
operates under a written charter, Exhibit F. The Joint Audit Committee meets
with the independent auditors, internal auditors and corporate officers to
review and discuss audited financial statements, reports, issues, and compliance
matters. This Committee reports significant issues to the Board and makes
recommendations to the independent Board members regarding the selection of the
independent public accountant. More information regarding this Committee and the
fund's independent auditor is found in Section C.

During the 12-month period ended Sept. 30, 2005, the Board met 8 times,
Executive 2 times, Contracts 7 times, Investment Review 5 times, Board
Effectiveness 6 times and Joint Audit 4 times. All Board members had 100%
attendance except for Mr. Simpson who had 82% attendance due to serious illness
in January 2005.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       32
<Page>

SHAREHOLDER COMMUNICATIONS WITH THE BOARD.

Shareholders may communicate directly with the Board by sending correspondence
to Arne H. Carlson, Chair of the Board, RiverSource Funds, 901 Marquette Avenue
South, Suite 2810, Minneapolis, MN 55402-3268. Correspondence to specific
individual Board members also may be directed to the same address.
Account-specific correspondence should be directed to RiverSource Funds, 70100
Ameriprise Financial Center, Minneapolis, MN 55474.

BOARD MEMBER COMPENSATION. The following table shows the total compensation
received by each Board member from all of the RiverSource Funds. The funds do
not pay retirement benefits to Board members. Under a Deferred Compensation
Plan, independent Board members may defer receipt of their compensation.
Deferred amounts are treated as though equivalent dollar amounts had been
invested in shares of one or more designated RiverSource funds.

TABLE A-5. BOARD MEMBER COMPENSATION(a)

<Table>
<Caption>
                    AGGREGATE COMPENSATION FROM          COMPENSATION FROM
                   ALL RIVERSOURCE FUNDS FOR THE      THE SELLING FUND DURING
NOMINEE              YEAR ENDED SEPT. 30, 2005         THE LAST FISCAL YEAR
                                                
Flynn                       $143,675(c)                       $    0
Jones                        185,892                           2,054
Lewis                        204,700(d)                        2,204(b)
Paglia                       157,708                               0
Simpson                      138,842                           1,850
Taunton-Rigby                166,842                           2,050
</Table>


(a)  Board members affiliated with RiverSource Investments or Board Services
     Corporation, a company providing administrative services to the RiverSource
     funds, are not paid by the RiverSource funds. Mr. Carlson's total
     compensation was $373,750. Board member compensation is a combination of a
     base fee and meeting fees. Because the spin-off of Ameriprise Financial
     from American Express Company necessitated 5 additional meetings, each
     Board member was paid $23,500 to cover those additional meetings. That
     cost, which is included in the aggregate compensation shown above, was
     borne by Ameriprise Financial. Ms. Blatz, Mr. Laikind and Ms. Pryor were
     not Board members prior to Sept. 30, 2005 and therefore are not included in
     the table.


(b)  Includes portion of compensation deferred in the amount of $889 from the
     Fund.


(c)  Includes portion of compensation deferred in the amount of $60,371 from the
     RiverSource funds.

(d)  Includes portion of compensation deferred in the amount of $54,839 from the
     RiverSource funds.

The following table shows the dollar range of shares of all the RiverSource
funds owned by the Board members and the dollar range of shares owned in the
Selling Fund.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       33
<Page>

TABLE A-6. BOARD MEMBER HOLDINGS*


Dollar range of equity securities beneficially owned as of Sept. 30, 2005



<Table>
<Caption>
                            AGGREGATE DOLLAR RANGE OF EQUITY                   DOLLAR RANGE OF
                           SECURITIES OF ALL RIVERSOURCE FUNDS               EQUITY SECURITIES IN
NOMINEE                         OVERSEEN BY BOARD MEMBER                      THE SELLING FUND**
                                                                       
Carlson                               over $100,000                                  None
Flynn                                $10,001-$50,000                                 None
Jones                                 over $100,000                                  None
Lewis                                 over $100,000                                  None
Paglia                              $50,001-$100,000                                 None
Simpson                             $50,001-$100,000                                 None
Taunton-Rigby                         over $100,000                                  None
Truscott                              over $100,000                                  None
</Table>



 *  Ms. Blatz, Mr. Laikind and Ms. Pryor were not Board members prior to Sept.
    30, 2005 and therefore are not included in the table.

**  The percentage of shares beneficially owned by all Board members and
    officers as a group does not exceed 1% of any class of shares of any fund.


FUND OFFICERS. In addition to Mr. Truscott, the fund's other executive officers
are:

LESLIE L. OGG, age 67. Vice president, general counsel and secretary since 1978.
President of Board Services Corporation.

JEFFREY P. FOX, age 50. Treasurer since 2002. Vice President - Investment
Accounting of Ameriprise Financial.


PAULA R. MEYER, age 51. President since 2002. Senior Vice President - Mutual
Funds, RiverSource Investments.

BETH E. WEIMER, age 52. Chief Compliance Officer since 2004. Vice President and
Chief Compliance Officer, Ameriprise Financial and Chief Compliance Officer,
RiverSource Investments.

Officers serve at the pleasure of the Board. Officers are paid by Ameriprise
Financial, RiverSource Investments or Board Services Corporation. During the
last fiscal year, no officer earned more than $60,000 from any fund.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       34
<Page>

PROPOSAL 3: APPROVE OR REJECT AN AMENDMENT TO THE ARTICLES OF INCORPORATION


REFERENCE TO THE "FUND" IN THIS PROPOSAL IS A REFERENCE TO STOCK.


The Fund is a Minnesota corporation and operates under an organizational
document called the articles of incorporation. The articles of incorporation set
forth various provisions relating to the authority of the fund to conduct
business and the governance of the fund.

The Board has approved, and recommends that shareholders approve, a proposal to
amend the fund's articles of incorporation (the "Articles"). The fund's
investments and investment policies will not change by virtue of the adoption of
the amendment to the Articles.

A. MINIMUM ACCOUNT VALUE

Generally, shareholders must invest at least $2,000 to open a fund account.
Section 7 of the Articles currently provides that the fund may redeem shares if
an account falls below a value of $1,000. Small accounts can be costly to
maintain and this provision allows the Board to close accounts that no longer
meet the fund's minimum standards. However, the current provision does not allow
the Board to redeem accounts if the value is higher than $1,000. In the future,
there may be circumstances in which a minimum account value higher than $1,000
is in the best interest of the fund and its shareholders. As a consequence, the
Board recommends that the Articles be amended to eliminate the reference to a
specific dollar amount. As proposed, the amended Articles will permit the Board
to establish a minimum account value that will be disclosed in the fund
prospectus. The Board will be able to change the minimum account value without
further action by shareholders.


If the change is approved, the Articles will be amended as follows ([underline]
additions are underlined [/underline] , [strikethrough] deletions are lined
through)[/strikethrough] :


Article III, Section 7 will be amended to read:


Section 7. The Fund may redeem the shares of a shareholder if the amount
invested is less than [strikethrough] $1,000 [/strikethrough] [underline] an
amount determined by the Board of Directors and set forth in the current Fund
prospectus. [/underline]


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       35
<Page>

B. NAME CHANGE.


Historically the name of the fund has reflected the name of the investment
manager. Since 1999, the name of the fund has included the letters AXP, which is
an abbreviated form of the name American Express. In August 2005, American
Express Financial Corporation ("AEFC"), the fund's investment manager changed
its name to Ameriprise Financial, Inc. in anticipation of its spin off from
American Express Company, its parent company. On Oct. 1, 2005, Ameriprise
Financial transferred responsibility for the fund's investment advisory services
to its wholly owned subsidiary, RiverSource Investments. The Board made a
corresponding change to the name of the fund by substituting the name
RiverSource for AXP. The fund is part of a corporation made up of one fund. The
name of the corporate entity can be changed only with approval of the
shareholders of all the underlying funds that make up the corporation. The Board
recommends that the name of the corporate entity also be changed to include the
name RiverSource instead of AXP. The change to the name of the corporation is
shown in the table below.


This is the first shareholder meeting since the spin off of the investment
manager and the first opportunity for shareholders to consider a name change for
the corporation.

TABLE A-7. PROPOSED NAME OF CORPORATION

<Table>
<Caption>
CURRENT NAME OF CORPORATION                  PROPOSED NAME OF CORPORATION
                                          
AXP Stock Series, Inc.                       RiverSource Stock Series, Inc.
</Table>

BOARD RECOMMENDATION AND VOTE REQUIRED. The Board recommends that you vote to
approve the amendments to the Articles. The changes require the approval by a
majority of the shares voted at the meeting. The changes will be effective when
the amendments are filed with the Secretary of State's office. This filing is
expected to occur shortly after the shareholder meeting.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       36
<Page>

PROPOSAL 4: APPROVE OR REJECT AN INVESTMENT MANAGEMENT SERVICES AGREEMENT WITH
RIVERSOURCE INVESTMENTS, LLC


REFERENCE TO THE "FUND" IN THIS PROPOSAL IS A REFERENCE TO STOCK.

The fund pays fees to RiverSource Investments under an Investment Management
Services Agreement (the "IMS Agreement") for investment management services. The
services include providing the personnel, equipment and office facilities
necessary for the management of the fund's assets. Subject to the oversight of
the Board and consistent with the fund's investment policies, the investment
manager decides what securities to buy, hold or sell. The investment manager
also executes buy and sell orders and provides research and statistical data to
support investment management activities. The Fund is part of a master/feeder
structure. In this structure, the fund invests all of its assets in a master
fund (the "portfolio") with the same policies as the fund. For purposes of this
discussion, the portfolio is referred to as a "fund".

INVESTMENT MANAGER. On Sept. 30, 2005, Ameriprise Financial became a publicly
traded company and on Oct. 1, 2005 transferred the investment management
functions and IMS Agreement to RiverSource Investments, a wholly-owned
subsidiary. While these transfers did not cause a termination of the IMS
Agreement, the Board determined that it would be prudent to give shareholders an
opportunity to vote on the arrangement and the changes described below.

SUMMARY OF KEY CHANGES

A. PERFORMANCE INCENTIVE ADJUSTMENT ("PIA"). The management fee includes a PIA
   as part of the fee calculation. The PIA calculation is based on the
   performance of the fund compared to the performance index of a group of
   comparable mutual funds compiled by Lipper, Inc. ("Lipper"). The proposed
   change clarifies the circumstances under which the Board may change an index
   for purposes of calculating the PIA.

B. STANDARD OF CARE. For all funds, the investment manager will be held to a
   higher standard of care than under the current IMS Agreement.

C. CONFIDENTIALITY. The proposed IMS Agreement contains an explicit
   acknowledgement from the fund that the investment manager may be prevented
   from divulging or acting upon certain confidential information learned in
   connection with its activities, including the provision of investment advice
   to clients other than the fund. In addition, the proposed IMS Agreement
   contains additional confidentiality provisions prohibiting the fund from
   disclosing to third parties any information or advice furnished by the
   investment manager to the fund, unless required by law or necessary to
   provide services to the fund.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       37
<Page>


D. AMENDMENTS. The proposed IMS Agreement clarifies that, as permitted under
   applicable law, the parties may make non-material amendments or modifications
   without obtaining shareholder approval.

TERMS OF THE CURRENT IMS AGREEMENT. The fee the fund pays to RiverSource
Investments for its services under the current IMS Agreement is based on the net
assets of the fund and decreases as the size of the fund increases. The complete
fee schedule for the fund and other similar funds managed by RiverSource
Investments is found in Section C. The fund also pays its taxes, brokerage
commission and nonadvisory expenses, which include custodian fees; audit and
certain legal fees; fidelity bond premiums; registration fees for shares;
consultant fees; Board compensation; corporate filing fees; organizational
expenses; expenses incurred in connection with lending portfolio securities; and
other expenses properly payable by the fund, approved by the Board. Section C
includes information on the date of the current IMS Agreement, the date it was
last approved by shareholders and the reason why it was submitted to
shareholders at that time.

A. PERFORMANCE INCENTIVE ADJUSTMENT ("PIA") CALCULATION. The management fee
   includes a PIA as part of the fee. The adjustment is based on the performance
   of the fund compared to the performance of a Lipper Index. The proposed
   modification does not change the IMS Agreement but clarifies the
   circumstances where the Board may change the index for purposes of this
   calculation. The provision in the current IMS Agreement will be modified to
    read as follows ([underline] additions are underlined /[underline],
    [strikethrough] deletions are lined through [/strikethrough] ):

     If an Index ceases to be published for a period of more than 90 days,
     changes in any material respect, otherwise becomes impracticable
     [underline] or, in the discretion of the Board, is no longer
     appropriate[/underline] to use for purposes of a performance incentive
     adjustment, [underline] for example, if Lipper reclassifies the Fund from
     one peer group to another, the Board may take action it deems appropriate
     and in the best interests of shareholders, including: (1) discontinuance of
     the performance incentive adjustment until such time as it approves a
     substitute index, or (2) adoption of a methodology to transition to a
     substitute index it has approved.[/underline] [strikethrough] no adjustment
     will be made until such time as the Board approves a substitute
     index.[/strikethrough]

   The PIA is determined by measuring the difference in the fund's performance
   from an appropriate Lipper Index over a rolling 12-month period. Should the
   Board approve the use of a substitute index, it may transition to the
   substitute index by introducing it gradually over time, to avoid unintended
   swings in the PIA.

B. STANDARD OF CARE. The proposed IMS Agreement revises the standard of care to
   provide that, except for bad faith, intentional misconduct or negligence in


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       38
<Page>


   regard to the performance of its duties pursuant to the agreement, neither
   the investment manager, nor any of its respective directors, officers,
   partners, principals, employees, or agents shall be liable for any acts or
   omissions or for any loss suffered by the fund or its shareholders or
   creditors. This means that the investment manager is held to a higher
   standard of care.

C. CONFIDENTIALITY. The current IMS Agreement contains an acknowledgement by the
   fund that the investment manager renders investment advice and other services
   to other investment companies and persons which may or may not have
   investment policies and investments similar to those of the fund. The
   proposed IMS Agreement adds an explicit acknowledgement from the fund that
   the investment manager may not be free to divulge to the fund or act, for the
   benefit of the fund, upon confidential information learned in connection with
   its activities, including the provision of investment advice to clients other
   than the fund.

   The current IMS Agreement is silent on the fund's obligation to refrain from
   divulging confidential information. The proposed IMS Agreement includes a new
   provision that prohibits the fund from disclosing to third parties any
   information or advice furnished to the fund by the investment manager, unless
   required by law or necessary to provide services to the fund.

D. AMENDMENTS. The current IMS Agreement does not address whether shareholder
   approval must be obtained before non-material amendments or modifications may
   be made. The proposed IMS Agreement includes a new provision clarifying that
   the parties may make non-material amendments or modifications without
   obtaining shareholder approval, as permitted under applicable law.


BASIS FOR RECOMMENDATION OF THE BOARD


Following announcement of the spin-off of Ameriprise Financial from American
Express Company, the Board and Ameriprise Financial agreed to review and revise,
where appropriate, the terms of all contracts, including the IMS Agreement,
pursuant to which Ameriprise Financial or its affiliates provides services to
the fund. Each year, the Board determines whether to continue the IMS Agreement
for the fund and, in doing so, evaluates the quality and level of service
received under the IMS Agreement and the costs associated with those services.
Accordingly, in March and April of each year, Ameriprise Financial prepares
detailed reports for the Board, which include data prepared by independent
organizations, to assist the Board in making this determination. The Board
accords considerable weight to the work, deliberations and conclusions of its
committees in determining whether to continue the IMS Agreement.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       39
<Page>


After thorough review of the reports and data provided at a meeting held in
person on April 14, 2005, the Board, including all of its independent members,
determined that the quality and level of advisory services provided pursuant to
the IMS Agreement for the fund were satisfactory and that fees were fair and
reasonable. However, in light of the announced plans of the spin-off, the Board
approved continuation of the IMS Agreement for only an interim period ending on
the later of (i) the effective date of the spin-off; or (ii) the approval of a
new investment management services agreement with Ameriprise Financial (or its
subsidiaries) by the shareholders of the fund, but in no event for a period
longer than one year. While it was expected that the spin-off would not result
in an "assignment" of an IMS Agreement under the 1940 Act and, therefore, would
not cause the termination of the IMS Agreement according to its terms, Schulte
Roth & Zabel LLP, retained as independent counsel to the Board, advised the
Board that the legal question of whether the spin-off would result in an
assignment turns on a highly fact-sensitive analysis. Therefore, the Board
determined, as a matter of prudence, to proceed as if the IMS Agreement would
terminate as a result of the spin-off. Accordingly, the Board determined to
renew the IMS Agreement for the interim period only and to consider a new IMS
Agreement for the fund prior to the spin-off.

For the six months following the April 2005 meeting, the Board and its
committees evaluated whether to approve a proposed IMS Agreement for the fund
with post-spin Ameriprise Financial (or its subsidiary). Schulte Roth & Zabel
LLP assisted the Board in fulfilling its statutory and other responsibilities
associated with the spin-off and the resulting consideration of new contracts,
including the proposed IMS Agreement. As a key step in this process, independent
counsel sent, on behalf of the independent members of the Board, a detailed and
expansive request for information to American Express Company and Ameriprise
Financial, seeking specified information thought to be relevant to the Board's
consideration of the proposed contracts with post-spin Ameriprise Financial. The
Board and its committees were provided with a wealth of written and oral
information intended to assist them in considering the proposed contracts,
including the proposed IMS Agreement. Furthermore, in connection with the
Board's considerations as to whether post-spin Ameriprise Financial, as an
independent entity, would be capable of continuing to provide a high quality of
services to the funds, the Board's independent members retained their own
financial adviser, Credit Suisse First Boston LLC ("CSFB"). At the Board's
requests, CSFB provided various written materials and oral presentations
analyzing the capital adequacy of Ameriprise Financial. The costs of independent
counsel and CSFB and of additional meetings of the Board were borne by
Ameriprise Financial as part of the commitment of American Express Company to
ensure a complete and thorough review of the proposed spin-off and its effect on
the services provided by Ameriprise Financial and its subsidiaries.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       40
<Page>


During the course of the six-month period following the April 2005 meeting, the
Board and its committees met at five in-person meetings to consider the
information provided by American Express Company, Ameriprise Financial,
independent counsel and CSFB. At an in-person meeting held on Sept. 8, 2005,
based on all of the information provided as well as the deliberations occurring
at that meeting and the previous meetings held since the announcement of the
spin-off, the Board, including all of its independent members, approved each of
the new contracts, including the proposed IMS Agreement.

On Oct. 1, 2005, pursuant to an agreement between the Fund and Ameriprise
Financial, the IMS Agreement was transferred to RiverSource Investments, a
wholly-owned subsidiary of Ameriprise Financial.

For these reasons, the Board, including all of its independent members,
recommends that you approve the proposed IMS Agreement for the fund.

THE BOARD'S SPECIFIC CONSIDERATIONS RELATING TO THE PROPOSED IMS AGREEMENT. In
carrying out its legal responsibilities associated with the consideration of he
proposed IMS Agreements, the Board evaluated the following four factors: (i) the
nature, extent and quality of services to be provided by RiverSource
Investments; (ii) the investment performance of the fund; (iii) the costs of the
services to be provided and the profits to be realized by Ameriprise Financial;
and (iv) the extent to which economies of scale would be realized as the fund
grows and whether the fee level reflects these economies of scale for the
benefit of fund investors.

NATURE, EXTENT AND QUALITY OF SERVICES TO BE PROVIDED BY POST-SPIN AMERIPRISE
FINANCIAL (AND ITS SUBSIDIARIES). The Board recognized that only a few months
had passed since its April 2005 determination to renew the IMS Agreement for the
fund and that in April 2005, it had concluded that the nature, extent and
quality of services provided by Ameriprise Financial were satisfactory and
consistent with those that would be expected for a fund family of the size of
the RiverSource funds. However, the Board also recognized that this assessment
must be supplemented with an evaluation of whether the spin-off or other factors
would result in any changes to the advisory services currently provided to the
funds. In this regard, the Board focused its evaluation on the following factors
potentially impacting the nature, extent and quality of advisory services to be
provided by RiverSource Investments: (i) Ameriprise Financial's projected
capital structure and capital adequacy as a stand-alone entity; (ii) its legal
and regulatory risks; (iii) its ability to retain and attract personnel; and
(iv) its ability to successfully rebrand its products and services. Based on
extensive presentations and reports by Ameriprise Financial, CSFB and
independent counsel, the Board concluded that the proposed capital structure
(which includes certain indemnification commitments made by American Express
Company) should enable RiverSource Investments to continue to provide a high
quality of advisory


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       41
<Page>


services to the funds. In making this determination, the Board took into account
representations by management of Ameriprise Financial that projected capital
levels would allow Ameriprise Financial (including RiverSource Investments) to
continue to meet its legal and compliance responsibilities, build its
distribution network, pursue technological upgrades, make capital commitments
necessary to retain and attract key personnel devoted to legal and compliance
responsibilities, portfolio management and distribution, and pursue smaller
asset management acquisitions to help grow its business. The Board accorded
significant weight to CSFB's confirmation as to the reasonableness of the
foregoing representations. The Board also considered the fact that there were no
expected departures of key personnel involved in the portfolio management,
operations and marketing of the funds as a result of the announcement of the
spin-off.

The Board concluded that, based on all of the materials and information provided
(and with the assistance of independent counsel), post-spin Ameriprise Financial
(including RiverSource Investments) would be in a position to continue to
provide a high quality of investment management services to the funds.

INVESTMENT PERFORMANCE. The Board next focused on investment performance. The
Board reviewed reports documenting the fund's performance over one-, three-
and/or five-year periods, as well as the entire period during which its current
portfolio manager has managed the fund, and compared the performance to relevant
Lipper and market indices. The Board took into account its considerations in
April 2005, in particular that investment performance over the past three years
was below median, but that Ameriprise Financial has taken steps to address the
underperformance and that the performance over the past year was above median.


The Board also considered that it has received monthly performance reports for
the funds. The Board and its committees concluded in September 2005 that there
have been no significant deviations from April's overall performance data.


COST OF SERVICES PROVIDED. The Board evaluated comparative fees and the costs of
services to be provided under the current and proposed IMS Agreements, including
fees charged by Ameriprise Financial (including RiverSource Investments and
other subsidiaries) to its institutional clients and paid to subadvisers. The
Board studied RiverSource Investments' effort (its "pricing philosophy") to set
most funds' total expense ratios at or below the median expense ratio of their
peer group. The Board considered that the fund's management fees would not
change under the proposed IMS Agreement. The Board also took into account the
effect of the proposed performance incentive adjustment on the advisory fee. In
this regard, the Board took into account its past determinations regarding the
appropriateness of: (i) the use of the


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       42
<Page>


appropriate index for the fund for the comparison of performance; (ii) the
methodology for determining when the Board may change an index used to calculate
the performance incentive adjustment; (iii) the periods used for averaging the
fund's assets and computing investment performance; and (iv) the length of the
period over which performance is computed.

The Board next considered the expected profitability to RiverSource Investments
and its affiliates derived from their relationship with the fund, recalling the
April 2005 determination that the profitability level was appropriate. The Board
noted that projected profitability of RiverSource Investments would allow it to
operate effectively and, at the same time, reinvest in its businesses. The Board
also considered that the proposed changes in advisory fees for certain
RiverSource funds as well as the mergers of certain funds would result in
revenue gains, while taking into account that these increases would not
materially alter profit margins due to expected increases in costs associated
with the spin-off, particularly rebranding and separation. CSFB also reported
that Ameriprise Financial's projected level of return on equity was generally
reasonable in light of the returns on equity of its industry competitors. In
evaluating profitability, the Board also considered the benefits Ameriprise
Financial obtains through the use of commission dollars paid on portfolio
transactions for the fund and from other business relationships that result from
managing the fund. The Board also considered the fees charged by Ameriprise
Financial to its institutional clients and paid to subadvisers, noting the
differences in services provided in each case. In light of these considerations,
the Board concluded that projected profitability levels were appropriate.

ECONOMIES OF SCALE. The Board also considered the breakpoints in fees that would
be triggered as the net asset levels of the fund grew and the extent to which
shareholders would benefit from such growth. The Board observed that the fee
schedule under the proposed IMS Agreement would continue to provide breakpoints
similar to those in place pursuant to the current IMS Agreement. Accordingly,
the Board concluded that the proposed IMS Agreement provides adequate
opportunity for shareholders to realize benefits as fund assets grow.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       43
<Page>


OTHER CONSIDERATIONS. In addition, the Board accorded weight to the fact that,
under the proposed IMS Agreement, RiverSource Investments is held to a higher
standard of care than under the current IMS Agreement. The Board also noted
Ameriprise Financial's commitment to a culture that adheres to ethical business
practice, assigns accountability to senior management and seeks to identify
conflicts and propose appropriate action to minimize the risks posed by the
conflicts. Furthermore, the Board recognized that it was not limited to
considering management's proposed contracts. In this regard, the Board evaluated
the circumstances under which it would consider the retention of an investment
adviser different from RiverSource Investments (or its subsidiaries). The Board
concluded, based on its consultation with independent counsel, that pursuing the
retention of a different adviser was not necessary, primarily because, in its
best judgment, RiverSource Investments continues to be basically the same
organization (from a functional and managerial standpoint) as it was prior to
the spin-off. The Board reasoned that shareholders purchased shares of the fund
with an expectation that the current investment advisory organization would be
servicing the fund.

As a result of all of the foregoing, the Board determined that the fees to be
paid under the proposed IMS Agreement were fair and reasonable in light of
services proposed to be provided.

BOARD RECOMMENDATION AND VOTE REQUIRED. For the foregoing reasons, the Board
recommends that shareholders of the fund approve the proposed IMS Agreement. The
proposed IMS Agreement must be approved by the lesser of (a) a majority of the
fund's outstanding shares or (b) 67% of the shares voted at the meeting, so long
as more than 50% of the shares actually vote. If shareholders approve the
proposed IMS Agreement, it will take effect shortly after the shareholder
meeting. If the proposed IMS Agreement is not approved, the Board will consider
appropriate steps to take.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       44
<Page>

SECTION B -- PROXY VOTING AND SHAREHOLDER MEETING INFORMATION


REFERENCE TO THE "FUND" IN THIS SECTION IS A REFERENCE TO STOCK.

VOTING. You are entitled to vote based on your total dollar interest in the
fund. Each dollar is entitled to one vote. For those of you who cannot come to
the meeting, the Board is asking permission to vote for you. The shares will be
voted as you instruct either by mail, telephone or internet. Signed proxy cards
returned without instructions will be voted in favor of all proposals.

In voting for Board members, you may vote all of your shares cumulatively. This
means that you have the right to give each nominee an equal number of votes or
divide the votes among the nominees as you wish. You have as many votes as the
number of dollars you own on the record date, multiplied by the number of Board
members to be elected. If you elect to withhold authority for any individual
nominee or nominees, you may do so by marking the box labeled "For All Except,"
and by striking the name of any excepted nominee, as is further explained on the
card itself. If you do withhold authority, the proxies will not vote shares
equivalent to the proportionate number applicable to the names for which
authority is withheld.


All votes count toward a quorum, regardless of how they are voted (For, Against
or Abstain). Broker non-votes will be counted toward a quorum but not toward the
approval of any proposals. (Broker non-votes are shares for which the underlying
owner has not voted and the broker holding the shares does not have authority to
vote.)

If your shares are held in an IRA account with Ameriprise Trust Company as
custodian, you have the right to instruct the IRA Custodian how to vote those
shares. The IRA Custodian will vote any shares for which it has not received
voting instructions in proportionately the same manner -- either For, Against,
or Abstain -- as other fund shareholders have voted.


MASTER/FEEDER FUNDS. Stock currently is part of a master/feeder structure. The
feeder fund seeks its investment objective by investing its assets in a master
fund with the same policies. The master fund invests in and manages the
securities. Immediately prior to the Reorganization, the Board intends to
withdraw the fund's assets from the master fund.

REVOKING YOUR PROXY. If you change your mind after you vote and you can attend
the meeting, simply inform the Secretary at the meeting that you will be voting
your shares in person. Also, if you change your mind after you vote, but cannot
attend the meeting, you may change your vote or revoke it by mail, telephone or
internet.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       45
<Page>

SIMULTANEOUS MEETINGS. The meeting will be held simultaneously with meetings of
other RiverSource mutual funds. Each proposal will be voted on separately by
shareholders of a corporation or by shareholders of a fund or by a class of
shares of the fund where appropriate. If any shareholder objects to the holding
of simultaneous meetings, the shareholder may move for an adjournment of his or
her fund's meeting to a time immediately after the simultaneous meetings so that
a meeting of that fund may be held separately. If a shareholder makes this
motion, the persons named as proxies will take into consideration the reasons
for the objection in deciding whether to vote in favor of the adjournment.

SOLICITATION OF PROXIES. The Board is asking for your vote and for you to vote
as promptly as possible. The investment manager will pay the expenses of the
solicitation. Supplementary solicitations may be made by mail, telephone,
electronic means or personal contact.


SHAREHOLDER PROPOSALS. No proposals were received from shareholders. The
RiverSource funds are not required to hold regular meetings of shareholders each
year. However, meetings of shareholders are held from time to time and proposals
of shareholders that are intended to be presented at future shareholder meetings
must be submitted in writing to the RiverSource funds in reasonable time prior
to the solicitation of proxies for the meeting.


DISSENTERS' RIGHT OF APPRAISAL. Under Sections 302A.471 and 302A.473 of the
Minnesota Business Corporation Act, Selling Fund shareholders are entitled to
assert dissenters' rights in connection with the Reorganization and obtain
payment of the "fair value" of their shares, provided that they comply with the
requirements of Minnesota law. A copy of the relevant provisions is attached as
Exhibit C.

Notwithstanding the provisions of Minnesota law, the SEC has taken the position
that use of state appraisal procedures by a mutual fund would be a violation of
Rule 22c-1, the forward pricing rule, under the 1940 Act. This rule states that
no mutual fund may redeem its shares other than at net asset value next computed
after receipt of a request for redemption. It is the SEC's position that Rule
22c-1 supersedes appraisal provisions in state statutes.

In the interest of ensuring equal valuation for all shareholders, dissenters'
rights will be determined in accordance with the SEC's interpretation. As a
result, if any shareholder elects to exercise dissenters' rights under Minnesota
law, the Selling Fund intends to submit this question to a court of competent
jurisdiction. In that event, a dissenting shareholder would not receive any
payment until the end of the court proceeding.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       46
<Page>

OTHER BUSINESS. The Board does not know at this time of any other business to
come before the meetings. If something does come up, the proxies will use their
best judgment to vote for you on the matter.


ADJOURNMENT. In the event that not enough votes are received by the time
scheduled for the meeting, the persons named as proxies may move for one or more
adjournments of the meeting for a period of not more than 120 days in the
aggregate to allow further solicitation of shareholders on the proposals. Any
adjournment requires the affirmative vote of a majority of the voting power of
the shares present at the meeting. The persons named as proxies will vote in
favor of adjournment those shares they are entitled to vote that have voted in
favor of the proposals. They will vote against any adjournment those shares that
have voted against the proposals. The investment manager will pay the costs of
any additional solicitation and of any adjourned meeting. A shareholder vote may
be taken on one or more of the items in this proxy statement prior to
adjournment if sufficient votes have been received.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       47
<Page>

SECTION C -- CAPITALIZATION, OWNERSHIP OF FUND SHARES AND OTHER FUND INFORMATION


REFERENCE TO THE "FUND" IN THIS SECTION IS A REFERENCE TO STOCK.

This section contains the following information about the funds, their
investment manager and the independent auditors:


TABLE   CONTENT
        (all information is shown for the last fiscal year unless noted
        otherwise)
C-1     Actual and pro forma capitalization of the Selling Fund and the Buying
        Fund
C-2     Current management fee schedule for the Fund and other RiverSource funds
        with similar investment objectives
C-3     The fund's current fee schedule under its management agreement
C-4     Payments the fund made to the investment manager and its affiliates
C-5     Brokerage commissions the fund paid to a broker-dealer affiliate
C-6     Information about shareholder approval of current management agreements
C-7A    Audit fees
C-7B    Audit-related, tax and other fees


THE FUND'S INVESTMENT MANAGER AND DISTRIBUTOR. RiverSource Investments is the
investment manager for each fund. Ameriprise Financial Services, Inc., a wholly
owned subsidiary of Ameriprise Financial, is the distributor for the fund. The
address for RiverSource Investments and Ameriprise Financial Services, Inc. is
200 Ameriprise Financial Center, Minneapolis, MN 55474.


PRESIDENT AND BOARD OF DIRECTORS OF RIVERSOURCE INVESTMENTS. William F. Truscott
is President of RiverSource Investments. The following individuals are directors
of RiverSource Investments. Each director is an officer of RiverSource
Investments, 200 Ameriprise Financial Center, Minneapolis, MN 55474. Directors:
William F. Truscott, Ward D. Armstrong and Michelle M. Keeley.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       48
<Page>

CAPITALIZATION

The following table shows the capitalization of the Funds as of Sept. 30, 2005
and on a pro forma basis, assuming the proposed Reorganization had taken place.

TABLE C-1. ACTUAL AND PRO FORMA CAPITALIZATION OF THE SELLING FUND AND THE
BUYING FUND


<Table>
<Caption>
                                          NET ASSET         SHARES
FUND                   NET ASSETS      VALUE PER SHARE   OUTSTANDING
                                                
STOCK
Class A              $1,465,935,660        $ 20.03        73,190,529
Class B                  96,845,429          19.86         4,876,852
Class C                   2,561,511          19.78           129,515
Class I                  29,863,009          20.03         1,491,161
Class Y                 332,418,938          20.03        16,599,166

DISCIPLINED EQUITY
Class A              $   32,276,709        $  6.79         4,753,442
Class B                   9,368,502           6.71         1,396,861
Class C                     215,153           6.71            32,080
Class I                  90,562,547           6.83        13,259,515
Class Y                      34,836           6.81             5,118

DISCIPLINED EQUITY - PRO FORMA WITH STOCK
Class A              $1,498,212,369        $  6.79       220,649,710
Class B                 106,213,931           6.71        15,829,861
Class C                   2,776,664           6.71           413,825
Class I                 120,425,556           6.83        17,631,844
Class Y                 332,453,774           6.81        48,818,472
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       49
<Page>

OWNERSHIP OF FUND SHARES

The following table provides information on shareholders who owned more than 5%
of each Fund's outstanding shares as of Sept. 30, 2005. As of Sept. 30, 2005,
officers and Board members of the Fund as a group owned less than 1% of the
outstanding shares of the Fund.

TABLE C-2. ACTUAL AND PRO FORMA OWNERSHIP OF FUND SHARES

<Table>
<Caption>
                                                      PERCENT OF
                                         PERCENT      SHARES HELD
                                        OF SHARES    FOLLOWING THE
FUND                   5% OWNERS          HELD      REORGANIZATION
                                           
STOCK
Class A                   None              --            --
Class B                   None              --            --
Class C                   None              --            --
Class I                   (1)               98%           24%
Class Y                   (2)              100%          100%

DISCIPLINED EQUITY
Class A                   (3)               10%            *
Class B                   None              --            --
Class C                   (4)               33%            3%
Class I                   (5)               98%           74%
Class Y                   (6)              100%            *
</Table>

(1)  RiverSource Portfolio Builder Moderate Aggressive Fund owns 32.96%.
     RiverSource Portfolio Builder Moderate Fund owns 20.62%. RiverSource
     Portfolio Builder Aggressive Fund owns 19.55%. RiverSource Portfolio
     Builder Total Equity Fund owns 19.25%. RiverSource Portfolio Builder
     Moderate Conservative Fund owns 5.82%.

(2)  Ameriprise Trust Company, Minneapolis, MN owns of record 99.52%.

(3)  Charles Schwab & Co Inc., a brokerage firm, owns of record 10.23%.


(4)  Emmanual A. and Kelly D. Madeira, S. Dartmouth, MA own 8.49%. Brian L. and
     Mary Jane Hopp, Beldenville, WI own 7.33%. IDS Life Insurance Company,
     Minneapolis, MN owns 6.23%. Linda L. Lane, Bay Pines, FL owns 5.59%. Paul
     M. and Nikki S. Farmer, Franklin, TN own 5.03%.

(5)  RiverSource Portfolio Builder Moderate Aggressive Fund owns 33.04%.
     RiverSource Portfolio Builder Moderate Fund owns 20.50%. RiverSource
     Portfolio Builder Aggressive Fund owns 19.57%. RiverSource Portfolio
     Builder Total Equity Fund owns 19.27%. RiverSource Portfolio Builder
     Moderate Conservative Fund owns 5.90%.


(6)  Charles Schwab & Co Inc., a brokerage firm, owns of record 60.92%. IDS Life
     Insurance Company, Minneapolis, MN owns 39.08%.

*    Less than 1%.

The following table shows the management fee schedule for the fund and other
domestic equity funds managed by the investment manager.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       50
<Page>

TABLE C-3. CURRENT MANAGEMENT FEE SCHEDULE FOR THE FUND AND OTHER RIVERSOURCE
FUNDS WITH SIMILAR INVESTMENT OBJECTIVES


<Table>
<Caption>
                                                    MANAGEMENT FEE                         FEE CAP OR WAIVERS(1)
       RETAIL FUNDS                          (ANNUAL RATE; IN BILLIONS)                       (IF APPLICABLE)
- ------------------------------------------------------------------------------------------------------------------
                                                                                   
Aggressive Growth(2),(4)       First $.5 - .89%; next $.5 - .865%; next $1 - .84%;       1.53% until 5/31/06
                               next $1 - .815%; next $3 - .79%; over $6 - .765%

Disciplined Equity(2)          First $1 - .60%; next $1 - .575%; next $1 - .55%;         Disciplined Equity:
Growth(2),(3)                  next $3 - .525%; next $6 - .50%; next $12 - .49%;         1.25% until 7/31/06
Large Cap Equity(2)            over $24 - .48%                                           Large Cap Value: 1.35%
Large Cap Value(2)                                                                       until 7/31/06
Mid Cap Growth(2)
New Dimensions(2),(3)

Discovery(2),(5)               First $.25 - .64%; next $.25 - .615%;                     1.49% until 7/31/06
                               next $.25 - .59%; next $.25 - .565%;
                               next $1 - .54%; over $2 - .515%

Diversified Equity             First $.5 - .53%; next $.5 - .505%; next $1 - .48%;
Income(2),(3)                  next $1 - .455%; next $3 - .43%; over $6 - .40%
Equity Value(2)
Stock(2),(3)
Strategic Allocation(2),(3)

Dividend Opportunity(2)        First $.5 - .61%; next $.5 - .585%; next $1 - .56%;
                               next $1 - .535%; next $3 - .51%; over $6 - .48%

Fundamental Growth(2),(6)      First $1 - .78%; next $1 - .755%; next $1 - .73%;         1.50% until 5/31/06
                               next $3 - .705%; over $6 - .68%

Fundamental Value(2),(7)       First $.5 - .73%; next $.5 - .705%; next $1 - .68%;
Value(2),(8)                   next $1 - .655%; next $3 - .63%; over $6 - .60%

Mid Cap Value(2)               First $1 - .70%; next $1 - .675%; next $1 - .65%;
                               next $3 - .625%; next $6 - .60%; next $12 - .59%;
                               over $24 - .58%

Select Value(2),(9)            First $.5 - .78%; next $.5 - .755%; next $1 - .73%;
                               next $1 - .705%; next $3 - .68%; over $6 - .65%

Small Cap                      First $.25 - .74%; next $.25 - .715%;
Advantage(2),(10)              next $.25 - .69%; next $.25 - .665%;
                               next $1 - .64%; over $2 - .615%

Small Cap Equity(2),(5)        First $.25 - .97%; next $.25 - .945%; next $.25 -         1.55% until 5/31/06
Small Cap Value(2),(11)        .92%; next $.25 - .895%; over $1 - .87%                   1.59% until 5/31/06

Small Cap Growth(2),(12)       First $.25 - .92%; next $.25 - .895%;                     1.70% until 3/31/07
                               next $.25 - .87%; next $.25 - .845%;
                               next $1 - .82%; over $2 - .795%

Strategy Aggressive(2),(4)     First $1 - .60%; next $1 - .575%; next $1 - .55%;
                               next $3 - .525%; over $6 - .50%
</Table>


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       51
<Page>

(1)  The information is shown for Class A shares. Fees and expenses in excess of
     the percentage shown will be waived. Fee caps for other classes of shares
     will vary slightly based on the expenses of those classes.

(2)  The fund has a PIA based on its performance compared to a Lipper index of
     comparable funds over a rolling 12-month period.

(3)  The fund is part of a master/feeder structure. Management fees are paid by
     the portfolio on behalf of the fund.

(4)  The fund has a subadvisory agreement with American Century Investment
     Management, Inc. and Turner Investment Partners, Inc.

(5)  The fund has subadvisory agreements with American Century Investment
     Management, Inc., Lord, Abbett & Co. and Wellington Management Company,
     LLP.

(6)  The fund has subadvisory agreements with Wellington Management Company, LLP
     and Goldman Sachs Asset Management L.P.


(7)  The fund has a subadvisory agreement with Davis Selected Advisers, L.P.


(8)  The fund has a subadvisory agreement with Lord, Abbett & Co.

(9)  The fund has a subadvisory agreement with Gabelli Asset Management Company.

(10) The fund has a subadvisory agreement with Kenwood Capital Management LLC.


(11) The fund has subadvisory agreements with Royce & Associates, LLC; Goldman
     Sachs Asset Management L.P.; Barrow, Hanley, Mewhinney & Strauss, Inc.;
     Donald Smith & Co., Inc.; and Franklin Portfolio Associates.


(12) The fund has subadvisory agreements with Turner Investment Partners, Inc.;
     UBS Global Asset Management (Americas) Inc.; Essex Investment Management
     Company, LLC; and MDT Advisers, a division of Harris Bietall Sullivan &
     Smith, LLC.

TABLE C-4. FUND PAYMENTS TO THE INVESTMENT MANAGER AND ITS AFFILIATES*


<Table>
<Caption>
FUND         ADMIN          DIST          IMS           SERVICE           TA         CUSTODY
                                                                   
Stock       $712,884     $5,170,642    $9,961,824       $398,708       $2,416,594    $181,769
</Table>



*  The Administrative Services Agreement ("Admin") is between the fund and
   Ameriprise Financial. The Agreement of Distribution ("Dist") and Shareholder
   Service Agreement ("Service") are between the fund and Ameriprise Financial
   Services, Inc. The Investment Management Services Agreement ("IMS") is
   between the fund and RiverSource Investments. The Transfer Agent Agreement
   ("TA") is between the fund and RiverSource Service Corporation. The Custodian
   Agreement ("Custody") is between the fund and Ameriprise Trust Company.
   Services under these agreements will continue to be provided by the same
   companies after the IMS Agreement is approved.


TABLE C-5. BROKERAGE COMMISSIONS PAID TO BROKER-DEALER AFFILIATES


<Table>
<Caption>
              BROKER/         AMOUNT OF         % OF ALL
FUND          DEALER         COMMISSIONS       COMMISSIONS
                                      
Stock         AEIS(1)           $23,308            0.05%
</Table>



(1)  Wholly-owned subsidiary of Ameriprise Financial. The amount shown reflects
     brokerage clearing fees.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       52
<Page>

TABLE C-6. DATES RELATING TO APPROVAL OF MANAGEMENT AGREEMENT

<Table>
<Caption>
                                              DATE LAST          REASON
                              DATE OF        APPROVED BY      SUBMITTED TO
FUND                         CONTRACT       SHAREHOLDERS      SHAREHOLDERS
                                                     
Stock                        12/1/02        11/13/2002             1
</Table>

(1)  Shareholders approved modifications to the performance incentive
     adjustment.


THE FUND'S INDEPENDENT REGISTERED PUBLIC ACCOUNTANT. The 1940 Act provides that
every registered investment company must be audited at least once each year by
independent registered public accountants selected by a majority of the
independent Board members. The Selling Fund's Board has selected KPMG LLP to be
the Fund's independent registered public accountant for the current fiscal year.
KPMG LLP, in accordance with Independence Standards Board Standard No. 1 ("ISB
No. 1"), has confirmed in writing to the Board's Joint Audit Committee that they
are independent accountants with respect to the Fund.


The independent accountants examine the financial statements for the Fund that
are set forth in the annual report to shareholders and provide other requested
non-audit and tax-related services to the Fund. The Joint Audit Committee
reviewed and discussed the audited financial statements with RiverSource
Investments and reviewed with KPMG LLP the matters required to be discussed by
SAS 61 (for example, methods used to account for significant unusual
transactions).

The Joint Audit Committee does not consider other non-audit services provided by
KPMG LLP to be incompatible with maintaining the independence of KPMG LLP in its
audits of the Fund, taking into account representations from KPMG LLP, in
accordance with ISB No. 1, regarding its independence from the Fund and its
related entities.

Representatives of KPMG LLP are expected to be present at the meeting. They will
be given the opportunity to make a statement to shareholders and are expected to
be available to respond to any questions that may be raised at the meeting.

JOINT AUDIT COMMITTEE PRE-APPROVAL POLICIES AND PROCEDURES. Pursuant to the
pre-approval requirements of the Sarbanes-Oxley Act of 2002, all services to be
performed by KPMG LLP for the Fund; the Fund's investment adviser; and any
entity controlling, controlled by, or under common control with the investment
adviser that provides ongoing services to the Fund, must be pre-approved by the
Joint Audit Committee.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       53
<Page>

AUDIT FEES. During the last two fiscal years, the aggregate fees paid to KPMG
LLP for professional services rendered for the audit of the annual financial
statements or services that are normally provided in connection with statutory
and regulatory filings for the fund were as follows:

TABLE C-7A. AUDIT FEES

DURING THE FUND'S LAST TWO FISCAL YEARS



<Table>
<Caption>
FUND                             LAST FISCAL YEAR         PREVIOUS FISCAL YEAR
                                                    
Stock                                $45,000                    $43,000
</Table>


The following table shows aggregate fees paid by the Fund to KPMG LLP in each of
the last two fiscal years for services that are not included in Table C-7A. All
of the services performed were pre-approved by the Joint Audit Committee.

- -  AUDIT-RELATED FEES. Assurance and related services that are reasonably
   related to the performance of the audit or review.

- -  TAX FEES. Tax compliance, tax advice and tax planning.


- -  ALL OTHER FEES. All other services rendered by KPMG LLP.


TABLE C-7B. AUDIT-RELATED, TAX AND OTHER FEES

DURING THE FUND'S LAST TWO FISCAL YEARS



<Table>
<Caption>
                        AGGREGATE           AGGREGATE            AGGREGATE
                   AUDIT-RELATED FEES        TAX FEES           OTHER FEES
- -------------------------------------------------------------------------------
                    LAST     PREVIOUS    LAST    PREVIOUS    LAST     PREVIOUS
                   FISCAL     FISCAL    FISCAL    FISCAL    FISCAL     FISCAL
FUND                YEAR       YEAR      YEAR      YEAR      YEAR       YEAR
                                                    
Stock               $464       $502     $7,100    $6,650     $673        $0
</Table>



AGGREGATE NON-AUDIT FEES TO STOCK, INVESTMENT MANAGER AND ITS AFFILIATES


For the year ended Sept. 30, 2005, the aggregate non-audit fees billed for
services rendered to the Fund, to the investment manager and to any entity
controlling, controlled by or under common control with the investment manager
that provides ongoing services to the funds was $94,152. For the year ended
Sept. 30, 2004, the aggregate amount was $133,823.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       54
<Page>

EXHIBIT A

FORM OF AGREEMENT AND PLAN OF REORGANIZATION


This Agreement and Plan of Reorganization dated as of Nov. 10, 2005 (the
"Agreement") is between AXP Stock Series, Inc. (the "Selling Corporation"), a
Minnesota corporation, on behalf of its series, RiverSource Stock Fund (the
"Selling Fund"), and AXP Growth Series, Inc. (the "Buying Corporation), a
Minnesota corporation, on behalf of its series, RiverSource Disciplined Equity
Fund (the "Buying Fund"), and RiverSource Investments, LLC (solely for the
purposes of Section 3c and 10 of the Agreement).


In consideration of their mutual promises, the parties agree as follows:

1.   SHAREHOLDER APPROVAL. The Selling Fund will call a meeting of its
     shareholders for the purpose of approving the Agreement and the
     transactions it contemplates (the "Reorganization"). The Buying Fund agrees
     to furnish data and information, as reasonably requested, for the proxy
     statement to be furnished to shareholders of the Selling Fund.

2.   REORGANIZATION.

     a.   Plan of Reorganization. The Reorganization will be a reorganization
          within the meaning of Section 368 of the Internal Revenue Code of
          1986, as amended (the "Code"). At the Closing, the Selling Corporation
          will convey all of the assets of the Selling Fund to the Buying Fund.
          The Buying Fund will assume all liabilities of the Selling Fund. At
          the Closing, the Buying Corporation will deliver shares of the Buying
          Fund, including fractional shares, to the Selling Corporation. The
          number of shares will be determined by dividing the value of the net
          assets of shares of the Selling Fund, computed as described in
          paragraph 3(a), by the net asset value of one share of the Buying
          Fund, computed as described in paragraph 3(b). The Selling Fund will
          not pay a sales charge on the receipt of Buying Fund shares in
          exchange for the assets of the Selling Fund. In addition, the
          shareholders of the Selling Fund will not pay a sales charge on
          distribution to them of shares of the Buying Fund.

     b.   Closing and Effective Time of the Reorganization. The Reorganization
          and all related acts necessary to complete the Reorganization (the
          "Closing") will occur on the first day on which the New York Stock
          Exchange (the "NYSE") is open for business following approval of
          shareholders of the Selling Fund and receipt of all necessary
          regulatory approvals, or such later date as the parties may agree.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.1
<Page>

3.   VALUATION OF NET ASSETS.

     a.   The net asset value of shares of the Selling Fund will be computed as
          of the close of regular trading on the NYSE on the day of Closing (the
          "Valuation Date") using the valuation procedures in the Buying Fund's
          prospectus.

     b.   The net asset value per share of shares of the Buying Fund will be
          determined as of the close of regular trading on the NYSE on the
          Valuation Date, using the valuation procedures in the Buying Fund's
          prospectus.

     c.   At the Closing, the Selling Fund will provide the Buying Fund with a
          copy of the computation showing the valuation of the net asset value
          per share of shares of the Selling Fund on the Valuation Date. The
          Buying Fund will provide the Selling Fund with a copy of the
          computation showing the determination of the net asset value per share
          of shares of the Buying Fund on the Valuation Date. Both computations
          will be certified by an officer of RiverSource Investments, LLC, the
          investment manager.

4.   LIQUIDATION AND DISSOLUTION OF THE SELLING FUND.

     a.   As soon as practicable after the Valuation Date, the Selling
          Corporation will liquidate the Selling Fund and distribute shares of
          the Buying Fund to the Selling Fund's shareholders of record. The
          Buying Fund will establish shareholder accounts in the names of each
          Selling Fund shareholder, representing the respective pro rata number
          of full and fractional shares of the Buying Fund due to each
          shareholder. All issued and outstanding shares of the Selling Fund
          will simultaneously be cancelled on the books of the Selling
          Corporation. The Buying Fund or its transfer agent will establish
          shareholder accounts in accordance with instructions from the Selling
          Corporation.

     b.   Immediately after the Valuation Date, the share transfer books of the
          Selling Corporation relating to the Selling Fund will be closed and no
          further transfer of shares will be made.

     c.   Promptly after the distribution, the Buying Fund or its transfer agent
          will notify each shareholder of the Selling Fund of the number of
          shares distributed to the shareholder and confirm the registration in
          the shareholder's name.

     d.   As promptly as practicable after the liquidation of the Selling Fund,
          and in no event later than twelve months from the date of the Closing,
          the Selling Fund will be dissolved.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.2
<Page>

5.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE BUYING CORPORATION. The
     Buying Corporation represents and warrants to the Selling Fund as follows:

     a.   Organization, Existence, etc. The Buying Corporation is a corporation
          duly organized, validly existing and in good standing under the laws
          of the state of Minnesota and has the power to carry on its business
          as it is now being conducted.

     b.   Registration as Investment Company. The Buying Fund is a series of the
          Buying Corporation, registered under the Investment Company Act of
          1940 (the "1940 Act") as an open-end, management investment company.

     c.   Capitalization. The Buying Corporation has authorized capital of
          10,000,000,000 shares of common stock, par value $0.01 per share. All
          of the outstanding shares have been duly authorized and are validly
          issued, fully paid and non-assessable. Since the Buying Fund is
          engaged in the continuous offering and redemption of its shares, the
          number of outstanding shares may vary daily.

     d.   Financial Statements. The audited financial statements as of the end
          of the last fiscal year, and the subsequent unaudited semi-annual
          financial statements, if any (the "Buying Fund Financial Statements"),
          fairly present the financial position of the Buying Fund, and the
          results of its operations and changes in its net assets for the
          periods shown.

     e.   Shares to be Issued Upon Reorganization. The shares to be issued in
          connection with the Reorganization will be duly authorized and, at the
          time of the Closing, will be validly issued, fully paid and
          non-assessable.

     f.   Authority Relative to the Agreement. The Buying Corporation has the
          power to enter into and carry out the obligations described in this
          Agreement. The Agreement and the transactions contemplated by it have
          been duly authorized by the Board of Directors of the Buying
          Corporation and no other proceedings by the Buying Corporation or the
          Buying Fund are necessary.

     g.   No Violation. The Buying Corporation is not in violation of its
          Articles of Incorporation or By-Laws (the "Articles") or in default in
          the performance of any material agreement to which it is a party. The
          execution of this Agreement and the completion of the transactions
          contemplated by it will not conflict with, or constitute a breach of,
          any material contract or other instrument to which the Buying Fund is
          subject. The transactions will not result in any violation of the
          provisions of the Articles or any law, administrative regulation or
          administrative or court decree applicable to the Buying Fund.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.3
<Page>

     h.   Liabilities. There are no liabilities of the Buying Fund other than:

          -  liabilities disclosed in the Buying Fund Financial Statements,

          -  liabilities incurred in the ordinary course of business subsequent
             to the date of the latest annual or semi-annual financial
             statements, or

          -  liabilities previously disclosed to the Selling Fund, none of which
             has been materially adverse to the business, assets or results of
             operation of the Buying Fund.

     i.   Litigation. There is no litigation, administrative proceeding or
          investigation before any court or governmental body currently pending
          or, to the knowledge of the Buying Fund, threatened, that would
          materially and adversely affect the Buying Fund, its financial
          condition or the conduct of its business, or that would prevent or
          hinder completion of the transactions contemplated by this Agreement.
          The Buying Fund knows of no facts that might form the basis for the
          institution of any such litigation, proceeding or investigation and
          the Buying Fund is not a party to or subject to the provisions of any
          order, decree or judgment.

     j.   Contracts. Except for contracts and agreements previously disclosed to
          the Selling Corporation, the Buying Fund is not a party to or subject
          to any material contract, debt instrument, plan, lease, franchise,
          license or permit.

     k.   Taxes. The Buying Fund has qualified as a regulated investment company
          under the Internal Revenue Code with respect to each taxable year
          since commencement of its operations and will qualify as a regulated
          investment company at all times through the Closing. As of the
          Closing, the Buying Fund will (i) have filed all federal and other tax
          returns and reports that have been required to be filed, (ii) have
          paid or provided for payment of all federal and other taxes shown to
          be due on such returns or on any assessments received, (iii) have
          adequately provided for all tax liabilities on its books, (iv) except
          as disclosed to the Selling Fund, not have had any tax deficiency or
          liability asserted against it or question with respect thereto raised,
          and (v) except as disclosed to the Selling Fund, not be under audit by
          the Internal Revenue Service or by any state or local tax authority
          for taxes in excess of those already paid.

     l.   Registration Statement. The Buying Fund will file a registration
          statement on Form N-14 (the "Registration Statement") with the
          Securities and Exchange Commission under the Securities Act of 1933
          (the "1933 Act") relating to the shares to be issued in the
          Reorganization. At the time the Registration Statement becomes

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.4
<Page>

          effective, at the time of the shareholders' meeting and at the
          Closing, the Registration Statement will not contain an untrue
          statement of a material fact or omit to state a material fact
          necessary to make the statements therein not misleading. However, none
          of the representations and warranties in this subsection apply to
          statements in, or omissions from, the Registration Statement made in
          reliance on information furnished by the Selling Fund for use in the
          Registration Statement.

6.   REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE SELLING CORPORATION. The
     Selling Corporation represents and warrants to the Buying Fund as follows:

     a.   Organization, Existence, etc. The Selling Corporation is a corporation
          duly organized, validly existing and in good standing under the laws
          of the state of Minnesota and has the power to carry on its business
          as it is now being conducted.

     b.   Registration as Investment Company. The Selling Fund is a series of
          the Selling Corporation, registered under the 1940 Act as an open-end,
          management investment company.

     c.   Capitalization. The Selling Corporation has authorized capital of
          10,000,000,000 shares of common stock, par value $0.01 per share. All
          of the outstanding shares have been duly authorized and are validly
          issued, fully paid and non-assessable. Since the Selling Fund is
          engaged in the continuous offering and redemption of its shares, the
          number of outstanding shares may vary daily.

     d.   Financial Statements. The audited financial statements as of the end
          of the last fiscal year, and the subsequent unaudited semi-annual
          financial statements, if any (the "Selling Fund Financial
          Statements"), fairly present the financial position of the Selling
          Fund, and the results of its operations and changes in its net assets
          for the periods shown.

     e.   Authority Relative to the Agreement. The Selling Corporation has the
          power to enter into and to carry out its obligations under this
          Agreement. The Agreement and the transactions contemplated by it have
          been duly authorized by the Board of Directors of the Selling
          Corporation and no other proceedings by the Selling Corporation or the
          Selling Fund are necessary.

     f.   No Violation. The Selling Corporation is not in violation of its
          Articles or in default in the performance of any material agreement to
          which it is a party. The execution of this Agreement and the
          completion of the transactions contemplated by it will not conflict
          with or constitute a breach of, any material contract to which the
          Selling Fund is subject.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.5
<Page>

          The transactions will not result in any violation of the provisions of
          the Articles or any law, administrative regulation or administrative
          or court decree applicable to the Selling Fund.

     g.   Liabilities. There are no liabilities of the Selling Fund other than:

          -  liabilities disclosed in the Selling Fund Financial Statements,

          -  liabilities incurred in the ordinary course of business subsequent
             to the date of the latest annual or semi-annual financial
             statements, or

          -  liabilities previously disclosed to the Buying Fund, none of which
             has been materially adverse to the business, assets or results of
             operation of the Selling Fund.

     h.   Litigation. There is no litigation, administrative proceeding or
          investigation before any court or governmental body currently pending
          or, to the knowledge of the Selling Fund, threatened, that would
          materially and adversely affect the Selling Fund, its financial
          condition or the conduct of its business, or that would prevent or
          hinder completion of the transactions contemplated by this Agreement.
          The Selling Fund knows of no facts that might form the basis for the
          institution of any such litigation, proceeding or investigation and is
          not a party to or subject to the provisions of any order, decree or
          judgment.

     i.   Contracts. Except for contracts and agreements previously disclosed to
          the Buying Corporation, the Selling Fund is not a party to or subject
          to any material contract, debt instrument, plan, lease, franchise,
          license or permit.

     j.   Taxes. The Selling Fund has qualified as a regulated investment
          company under the Internal Revenue Code with respect to each taxable
          year since commencement of its operations and will qualify as
          regulated investment company at all times through the Closing. As of
          the Closing, the Selling Fund will (i) have filed all federal and
          other tax returns and reports that have been required to be filed,
          (ii) have paid or provided for payment of all federal and other taxes
          shown to be due on such returns or on any assessments received, (iii)
          have adequately provided for all tax liabilities on its books, (iv)
          except as disclosed to the Buying Fund, not have had any tax
          deficiency or liability asserted against it or question with respect
          thereto raised, and (v) except as disclosed to the Buying Fund, not be
          under audit by the Internal Revenue Service or by any state or local
          tax authority for taxes in excess of those already paid.

     k.   Fund Securities. All securities listed in the schedule of investments
          of the Selling Fund as of the Closing will be owned by the Selling
          Fund free and clear of any encumbrances, except as indicated in the
          schedule.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.6
<Page>


     l.   Registration Statement. The Selling Fund will cooperate with the
          Buying Fund and will furnish information relating to the Selling
          Corporation and the Selling Fund required in the Registration
          Statement. At the time the Registration Statement becomes effective,
          at the time of the shareholders' meeting and at the Closing, the
          Registration Statement, as it relates to the Selling Corporation or
          the Selling Fund, will not contain an untrue statement of a material
          fact or omit to state a material fact necessary to make the statements
          therein not misleading. However, the representations and warranties in
          this subsection apply only to statements in or omissions from the
          Registration Statement made in reliance upon information furnished by
          the Selling Corporation or the Selling Fund for use in the
          Registration Statement.


7.   CONDITIONS TO OBLIGATIONS OF THE BUYING CORPORATION. The obligations of the
     Buying Corporation with respect to the Reorganization are subject to the
     satisfaction of the following conditions:

     a.   Shareholder Approval. This Agreement will have been approved by the
          affirmative vote of the holders of the majority of the voting power of
          all Selling Fund shares entitled to vote.

     b.   Representations, Warranties and Agreements. The Selling Corporation
          and the Selling Fund will have complied with this Agreement and each
          of the representations and warranties in this Agreement will be true
          in all material respects as of the Closing. An officer of the Selling
          Corporation will provide a certificate to the Buying Fund confirming
          that, as of the Closing, the representations and warranties set forth
          in Section 6 are true and correct and that there have been no material
          adverse changes in the financial condition, results of operations,
          business, properties or assets of the Selling Fund since the date of
          its last financial statement, except as otherwise indicated in any
          financial statements, certified by an officer of the Selling
          Corporation, and delivered to the Buying Fund on or prior to the last
          business day before the Closing.

     c.   Regulatory Approvals.

          -  The Registration Statement referred to in Section 5(l) will be
             effective and no stop orders under the 1933 Act will have been
             issued.

          -  All necessary approvals, consents and exemptions from federal and
             state regulatory authorities will have been obtained.

     d.   Tax Opinion. The Buying Corporation will have received the opinion of
          Ropes & Gray LLP dated as of the Closing, as to the federal income tax
          consequences of the Reorganization to the Buying Fund

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.7
<Page>

          and its shareholders. For purposes of rendering their opinion, Ropes &
          Gray LLP may rely, as to factual matters, upon the statements made in
          this Agreement, the proxy statement which will be distributed to the
          shareholders of the Selling Fund, and other written representations as
          an officer of the Selling Corporation will have verified as of
          Closing. The opinion of Ropes & Gray LLP will be to the effect that:
          (i) neither the Selling Fund nor the Buying Fund will recognize any
          gain or loss upon the transfer of the assets of the Selling Fund to,
          and assumption of its liabilities by, the Buying Fund in exchange for
          shares of the Buying Fund and upon the distribution of the shares to
          the Selling Fund shareholders in exchange for their shares of the
          Selling Fund; (ii) the shareholders of the Selling Fund who receive
          shares of the Buying Fund in the Reorganization will not recognize any
          gain or loss on the exchange of their shares of the Selling Fund for
          the shares of the Buying Fund; (iii) the holding period and the basis
          of the shares received by the Selling Fund shareholders will be the
          same as the holding period and the basis of the shares of the Selling
          Fund surrendered in the exchange; (iv) the holding period and the
          basis of the assets acquired by the Buying Fund will be the same as
          the holding period and the basis of the assets to the Selling Fund
          immediately prior to the Reorganization.

     e.   Opinion of Counsel. The Buying Corporation will have received an
          opinion of counsel for the Selling Corporation, dated as of the
          Closing, to the effect that: (i) the Selling Corporation is a
          corporation duly organized and validly existing under the laws of the
          state of Minnesota; (ii) the Selling Fund is a series of the Selling
          Corporation, an open-end investment company registered under the 1940
          Act; (iii) this Agreement and the Reorganization have been duly
          authorized and approved by all requisite action of the Selling
          Corporation and the Selling Fund and this Agreement has been duly
          executed by, and is a valid and binding obligation of, the Selling
          Corporation.

     f.   Declaration of Dividend. The Selling Fund, prior to the Closing, has
          declared a dividend or dividends, which, together with all previous
          such dividends, shall have the effect of distributing to the Selling
          Fund shareholders (i) all of the excess of (x) the Selling Fund's
          investment income excludable from gross income under Section 103 of
          the Code over (y) the Selling Fund's deductions disallowed under
          Sections 265 and 171 of the Code, (ii) all of the Selling Fund's
          investment company taxable income as defined in Section 852 of the
          Code (in each case computed without regard to any deduction for
          dividends paid) and (iii) all of the Selling Fund's net capital gain
          realized (after reduction

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.8
<Page>

          for any capital loss carryover), in each case for the current taxable
          year (which will end on the Closing date) and any preceding taxable
          years for which such a dividend is eligible to be made under Section
          855 of the Code.

8.   CONDITIONS TO OBLIGATIONS OF THE SELLING CORPORATION. The obligations of
     the Selling Corporation with respect to the Reorganization are subject to
     the satisfaction of the following conditions:

     a.   Shareholder Approval. This Agreement will have been approved by the
          affirmative vote of the holders of the majority of the voting power of
          all Selling Fund shares entitled to vote.

     b.   Representations, Warranties and Agreements. The Buying Fund will have
          complied with this Agreement and each of the representations and
          warranties in this Agreement will be true in all material respects as
          of the Closing. An officer of the Buying Corporation will provide a
          certificate to the Selling Fund confirming that, as of the Closing,
          the representations and warranties set forth in Section 5 are true and
          correct and that there have been no material adverse changes in the
          financial condition, results of operations, business, properties or
          assets of the Buying Fund since the date of its last financial
          statement, except as otherwise indicated in any financial statements,
          certified by an officer of the Buying Corporation, and delivered to
          the Selling Fund on or prior to the last business day before the
          Closing.

     c.   Regulatory Approvals.

          -  The Registration Statement referred to in Section 5(l) will be
             effective and no stop orders under the 1933 Act will have been
             issued.

          -  All necessary approvals, consents and exemptions from federal and
             state regulatory authorities will have been obtained.

     d.   Tax Opinion. The Selling Corporation will have received the opinion of
          Ropes & Gray LLP dated as of the Closing, as to the federal income tax
          consequences of the Reorganization to the Selling Fund and its
          shareholders. For purposes of rendering their opinion, Ropes & Gray
          LLP may rely, as to factual matters, upon the statements made in this
          Agreement, the proxy statement which will be distributed to the
          shareholders of the Selling Fund, and other written representations as
          an officer of the Buying Corporation will have verified as of Closing.
          The opinion of Ropes & Gray LLP will be to the effect that: (i)
          neither the Selling Fund nor the Buying Fund will recognize any gain
          or loss upon the transfer of the assets of the Selling Fund to, and
          assumption of its liabilities by, the Buying Fund in exchange for
          shares of the Buying Fund and upon the distribution of the shares to
          the Selling

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       A.9
<Page>

          Fund shareholders in exchange for their shares of the Selling Fund;
          (ii) the shareholders of the Selling Fund who receive shares of the
          Buying Fund in the Reorganization will not recognize any gain or loss
          on the exchange of their shares of the Selling Fund for the shares of
          the Buying Fund; (iii) the holding period and the basis of the shares
          received by the Selling Fund shareholders will be the same as the
          holding period and the basis of the shares of the Selling Fund
          surrendered in the exchange; (iv) the holding period and the basis of
          the assets acquired by the Buying Fund will be the same as the holding
          period and the basis of the assets to the Selling Fund immediately
          prior to the Reorganization; and (v) the Buying Fund will succeed to
          and take into account the items of the Selling Fund described in
          Section 381(c) of the Code, subject to the conditions and limitations
          specified in Sections 381, 382, 383, and 384 of the Code and the
          regulations thereunder.

     e.   Opinion of Counsel. The Selling Corporation will have received the
          opinion of counsel for the Buying Corporation, dated as of the
          Closing, to the effect that: (i) the Buying Corporation is a
          corporation duly organized and validly existing under the laws of the
          state of Minnesota; (ii) the Buying Fund is a series of the Buying
          Corporation, an open-end investment company registered under the 1940
          Act; (iii) this Agreement and the Reorganization have been authorized
          and approved by all requisite action of the Buying Corporation and the
          Buying Fund and this Agreement has been duly executed by, and is a
          valid and binding obligation of, the Buying Corporation; and (iv) the
          shares to be issued in the Reorganization are duly authorized and upon
          issuance in accordance with this Agreement will be validly issued,
          fully paid and non-assessable shares of the Buying Fund.

9.   AMENDMENT; TERMINATION; NON-SURVIVAL OF COVENANTS, WARRANTIES AND
     REPRESENTATIONS.

     a.   This Agreement may be amended in writing if authorized by the
          respective Boards of Directors. The Agreement may be amended at any
          time before or after approval by the shareholders of the Selling Fund,
          but after shareholder approval, no amendment shall be made that
          substantially changes the terms of paragraphs 2 or 3.

     b.   At any time prior to the Closing, any of the parties may waive in
          writing (i) any inaccuracies in the representations and warranties
          made to it and (ii) compliance with any of the covenants or conditions
          made for its benefit. However, neither party may waive the requirement
          to obtain shareholder approval or the requirement to obtain a tax
          opinion.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      A.10
<Page>

     c.   The Selling Corporation may terminate this Agreement at any time prior
          to the Closing by notice to the Buying Corporation if a material
          condition to its performance or a material covenant of the Buying
          Corporation on behalf of the Buying Fund is not fulfilled on or before
          the date specified for its fulfillment or a material breach of this
          Agreement is made by the Buying Corporation on behalf of the Buying
          Fund and is not cured.

     d.   The Buying Corporation may terminate this Agreement at any time prior
          to the Closing by notice to the Selling Corporation if a material
          condition to its performance or a material covenant of the Selling
          Corporation on behalf of the Selling Fund is not fulfilled on or
          before the date specified for its fulfillment or a material breach of
          this Agreement is made by the Selling Corporation on behalf of the
          Selling Fund and is not cured.

     e.   This Agreement may be terminated by any party at any time prior to the
          Closing, whether before or after approval by the shareholders of the
          Selling Fund, without any liability on the part of either party or its
          respective directors, officers, or shareholders, on written notice to
          the other party, and shall be terminated without liability as of the
          close of business on Dec. 31, 2006, or a later date agreed upon by the
          parties, if the Closing is not on or prior to that date.

     f.   The representations, warranties and covenants contained in this
          Agreement, or in any document delivered in connection with this
          Agreement, will survive the Reorganization.


10.  EXPENSES. RiverSource Investments, LLC will pay all solicitation expenses
     in order to achieve shareholder approval of the Reorganization whether or
     not the Reorganization is completed and will bear the other costs of
     effecting the Reorganization.


11.  GENERAL.

     a.   Headings. The headings contained in this Agreement are for reference
          purposes only and will not affect the meaning or interpretation of
          this Agreement. Nothing in this Agreement is intended to confer upon
          any other person any rights or remedies by reason of this Agreement.

     b.   Governing Law. This Agreement will be governed by the laws of the
          state of Minnesota.

12.  INDEMNIFICATION.

     Each party will indemnify and hold the other and its officers and directors
     (each an "Indemnitee") harmless from and against any liability or other
     cost and expense, in connection with the defense or disposition of any
     action, suit, or other proceeding, before any court or administrative or

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      A.11
<Page>

     investigative body in which the Indemnitee may be involved as a party, with
     respect to actions taken under this Agreement. However, no Indemnitee will
     be indemnified against any liability or expense arising by reason of
     willful misfeasance, bad faith, gross negligence or reckless disregard of
     the duties involved in the conduct of the Indemnitee's position.

IN WITNESS WHEREOF, each of the parties has caused this Agreement to be signed.

AXP Stock Series, Inc.
   on behalf of RiverSource Stock Fund


By
   -----------------------------------
   Leslie L. Ogg
   Vice President


AXP Growth Series, Inc.
   on behalf of RiverSource Disciplined Equity Fund


By
   -----------------------------------
   Leslie L. Ogg
   Vice President


The undersigned is a party to this Agreement for purposes of Section 3c and 10
only.

RiverSource Investments, LLC

By
   -----------------------------------
   Paula R. Meyer

   Senior Vice President - Mutual Funds


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      A.12

<Page>

EXHIBIT B


REFERENCE TO THE "FUND" IN THIS EXHIBIT IS A REFERENCE TO DISCIPLINED EQUITY.


MATTERS SUBJECT TO APPROVAL AT REGULAR MEETING OF BUYING FUND

In addition to voting on proposals to elect Board members, to amend the Articles
of Incorporation, and to approve the IMS Agreement, Buying Fund shareholders
will consider the following:

APPROVE OR REJECT CHANGES IN FUNDAMENTAL INVESTMENT POLICIES


The fund has some investment policies that are fundamental. This means the
policies can be changed only with the approval of shareholders. RiverSource
Investments recommended to the Board that certain of those policies be modified
in order to standardize the policies for all RiverSource funds and to eliminate
unnecessary limitations.


RiverSource Investments believes that increased standardization will help to
promote operational efficiencies and facilitate monitoring of compliance with
fundamental investment policies. Adoption of a new or revised policy is not
intended to change current investment techniques employed for the fund. The
Board recommends the following changes to the fund's fundamental investment
policies:

A. DIVERSIFICATION


The Board recommends that the fund's fundamental policy with respect to
diversification be revised to give the fund the maximum flexibility permitted by
the 1940 Act. The Board recommends that shareholders vote to replace the fund's
current fundamental investment policy with the following policy (additional or
revised language is underlined):

     The fund will not invest more than 5% of its total assets in securities of
     any company, government, or political subdivision thereof, except the
     limitation will not apply to investments in securities issued or guaranteed
     by the U.S. government, its agencies or instrumentalities or other
     investment companies, and except that up to 25% of the fund's total assets
     may be invested without regard to this 5% limitation.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       B.1
<Page>

The percentage limits in the proposed policy are required under the 1940 Act.
The amended policy makes one change from the current policy: subject to
applicable 1940 Act requirements, it would permit the fund to invest without
limit in the securities of other investment companies. Pursuant to an exemptive
order granted by the Securities and Exchange Commission (the "SEC"), the fund
may invest up to 25% of its total assets in a non-publicly offered money market
fund managed by RiverSource Investments (the "cash pool fund"). The cash pool
fund is not expected to pay investment advisory, management, or transfer agent
fees, although it may do so subject to the conditions of the SEC order and Board
approval. The cash pool fund will incur minimal costs for services, such as
custodian and auditor fees. The investment manager anticipates that making use
of the cash pool fund will benefit the fund by enhancing the efficiency of cash
management and by providing increased short-term investment opportunities. If
the proposal is approved, the cash pool fund is expected to serve as a principal
option for managing the cash positions of the fund. Future amendments to the
fund's fundamental diversification policy would continue to require shareholder
approval.

B.   LENDING

The Board recommends that the fund's fundamental policies with respect to
lending be replaced with the following policy:


     The Fund will not lend securities or participate in an interfund lending
     program if the total of all such loans would exceed 33 1/3% of the Fund's
     total assets except this fundamental investment policy shall not prohibit
     the Fund from purchasing money market securities, loans, loan participation
     or other debt securities, or from entering into repurchases agreements.

Currently the fund has two policies with respect to lending. One policy limits
lending of portfolio securities to 30% of net assets and the other policy limits
cash loans to 5% of total assets. In addition, the fund has a policy prohibiting
loans to the investment manager, or to board members and officers of the
investment manager or the fund. This third policy simply states a prohibition of
the 1940 Act and the fund is not required to declare this policy as a
fundamental policy. It is proposed that all three of these policies be
superseded by the policy stated above.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       B.2
<Page>


The proposal is not expected to materially affect the operation of the fund.
However, the proposed policy would clarify that the fund can participate in an
interfund borrowing and lending program with other RiverSource Funds, subject to
the requirements of an SEC exemptive order. A fund may only borrow money for
temporary purposes and may not borrow for leverage or investment purposes.
Appropriate safeguards will be implemented to assure that the fund will not be
disadvantaged by making loans to affiliated funds. The proposed policy also
would confirm the fund's ability to invest in direct debt instruments such as
loans and loan participations, which are interests in amounts owed to another
party by a company, government or other borrower. These types of securities may
have additional risks beyond conventional debt securities because they may
provide less legal protection for the fund, or there may be a requirement that
the fund supply additional cash to a borrower on demand. Finally, the adoption
of the proposed investment policy will advance the goal of standardizing
investment policies.


C. BORROWING

The Board recommends that the fund's fundamental policy with respect to
borrowing be replaced with the following policy:

     The fund may not borrow money, except for temporary purposes (not for
     leveraging or investment) in an amount not exceeding 33 1/3% of its total
     assets (including the amount borrowed) less liabilities (other than
     borrowings) immediately after the borrowings.


Funds typically borrow money to meet redemptions in order to avoid forced,
unplanned sales of portfolio securities. This technique allows RiverSource
Investments greater flexibility in managing the fund's cash flow. The current
policy limits borrowing to "emergency or extraordinary purposes". In order to
avoid debate over what constitutes emergency or extraordinary purposes, it is
proposed to revise the policy to reflect that the purposes, whatever the
circumstances, must be temporary. The fund may not use borrowing for leverage or
for investment purposes. In addition, the policy for certain funds includes a
prohibition on borrowing "property". The Board recommends that this prohibition
be deleted in order to standardize investment policies.


                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       B.3
<Page>

BOARD RECOMMENDATION AND VOTE REQUIRED. The Board recommends that shareholders
approve the proposed changes. Changes in fundamental policies must be approved
by the lesser of (a) a majority of the fund's outstanding shares or (b) 67% of
the shares voted at the meeting, so long as more than 50% of the shares actually
vote. If the any of the proposed changes is not approved, the fund will continue
to operate under its current policy.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       B.4
<Page>

EXHIBIT C

MINNESOTA BUSINESS CORPORATION ACT SECTIONS 302A.471 AND 302A.473

Minnesota law requires that we provide you with a copy of the state law on
dissenters' rights. Notwithstanding the provisions of the law set out below, the
SEC has taken the position that use of state appraisal procedures by a
registered mutual fund such as the Fund would be a violation of Rule 22c-1, the
forward pricing rule, under the 1940 Act. As a result, if any shareholder elects
to exercise dissenters' rights under Minnesota law, the Fund intends to submit
this question to a court of competent jurisdiction. In that event, a dissenting
shareholder would not receive any payment until the end of the court proceeding.

302A.471. RIGHTS OF DISSENTING SHAREHOLDERS

SUBDIVISION 1. ACTIONS CREATING RIGHTS. A shareholder of a corporation may
dissent from, and obtain payment for the fair value of the shareholder's shares
in the event of, any of the following corporate actions:

(a)  An amendment of the articles that materially and adversely affects the
     rights or preferences of the shares of the dissenting shareholder in that
     it:

     (1)  alters or abolishes a preferential right of the shares;

     (2)  creates, alters, or abolishes a right in respect of the redemption of
          the shares, including a provision respecting a sinking fund for the
          redemption or repurchase of the shares;

     (3)  alters or abolishes a preemptive right of the holder of the shares to
          acquire shares, securities other than shares, or rights to purchase
          shares or securities other than shares;

     (4)  excludes or limits the right of a shareholder to vote on a matter, or
          to cumulate votes, except as the right may be excluded or limited
          through the authorization or issuance of securities of an existing or
          new class or series with similar or different voting rights; except
          that an amendment to the articles of an issuing public corporation
          that provides that section 302A.671 does not apply to a control share
          acquisition does not give rise to the right to obtain payment under
          this section;

(b)  A sale, lease, transfer, or other disposition of all or substantially all
     of the property and assets of the corporation, but not including a
     transaction permitted without shareholder approval in section 302A.661,
     subdivision 1, or a disposition in dissolution described in section
     302A.725, subdivision 2, or a disposition pursuant to an order of a court,
     or a disposition for cash on terms requiring that all or substantially all
     of the net proceeds of disposition be distributed to the shareholders in
     accordance with their respective interests within one year after the date
     of disposition;

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.1
<Page>

(c)  A plan of merger, whether under this chapter or under chapter 322B, to
     which the corporation is a party, except as provided in subdivision 3, and
     except for a plan of merger adopted under section 302A.626;

(d)  A plan of exchange, whether under this chapter or under chapter 322B, to
     which the corporation is a party as the corporation whose shares will be
     acquired by the acquiring corporation, except as provided in subdivision 3;
     or

(e)  Any other corporate action taken pursuant to a shareholder vote with
     respect to which the articles, the bylaws, or a resolution approved by the
     board directs that dissenting shareholders may obtain payment for their
     shares.

SUBDIVISION 2. BENEFICIAL OWNERS.

(a)  A shareholder shall not assert dissenters' rights as to less than all of
     the shares registered in the name of the shareholder, unless the
     shareholder dissents with respect to all the shares that are beneficially
     owned by another person but registered in the name of the shareholder and
     discloses the name and address of each beneficial owner on whose behalf the
     shareholder dissents. In that event, the rights of the dissenter shall be
     determined as if the shares as to which the shareholder has dissented and
     the other shares were registered in the names of different shareholders.

(b)  The beneficial owner of shares who is not the shareholder may assert
     dissenters' rights with respect to shares held on behalf of the beneficial
     owner, and shall be treated as a dissenting shareholder under the terms of
     this section and section 302A.473, if the beneficial owner submits to the
     corporation at the time of or before the assertion of the rights a written
     consent of the shareholder.

SUBDIVISION 3. RIGHTS NOT TO APPLY.

(a)  Unless the articles, the bylaws, or a resolution approved by the board
     otherwise provide, the right to obtain payment under this section does not
     apply to a shareholder of (1) the surviving corporation in a merger with
     respect to shares of the shareholder that are not entitled to be voted on
     the merger or (2) the corporation whose shares will be acquired by the
     acquiring corporation in a plan of exchange with respect to shares of the
     shareholder that are not entitled to be voted on the plan of exchange and
     are not exchanged in the plan of exchange.

(b)  If a date is fixed according to section 302A.445, subdivision 1, for the
     determination of shareholders entitled to receive notice of and to vote on
     an action described in subdivision 1, only shareholders as of the date
     fixed, and beneficial owners as of the date fixed who hold through
     shareholders, as provided in subdivision 2, may exercise dissenters'
     rights.

SUBDIVISION 4. OTHER RIGHTS. The shareholders of a corporation who have a right
under this section to obtain payment for their shares do not have a right at

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.2
<Page>

law or in equity to have a corporate action described in subdivision 1 set aside
or rescinded, except when the corporate action is fraudulent with regard to the
complaining shareholder or the corporation.

302A.473. PROCEDURES FOR ASSERTING DISSENTERS' RIGHTS

SUBDIVISION 1. DEFINITIONS.

(a)  For purposes of this section, the terms defined in this subdivision have
     the meanings given them.

(b)  "Corporation" means the issuer of the shares held by a dissenter before the
     corporate action referred to in section 302A.471, subdivision 1 or the
     successor by merger of that issuer.

(c)  "Fair value of the shares" means the value of the shares of a corporation
     immediately before the effective date of the corporate action referred to
     in section 302A.471, subdivision 1.

(d)  "Interest" means interest commencing five days after the effective date of
     the corporate action referred to in section 302A.471, subdivision 1, up to
     and including the date of payment, calculated at the rate provided in
     section 549.09 for interest on verdicts and judgments.

SUBDIVISION 2. NOTICE OF ACTION. If a corporation calls a shareholder meeting at
which any action described in section 302A.471, subdivision 1 is to be voted
upon, the notice of the meeting shall inform each shareholder of the right to
dissent and shall include a copy of section 302A.471 and this section and a
brief description of the procedure to be followed under these sections.

SUBDIVISION 3. NOTICE OF DISSENT. If the proposed action must be approved by the
shareholders, a shareholder who is entitled to dissent under section 302A.471
and who wishes to exercise dissenters' rights must file with the corporation
before the vote on the proposed action a written notice of intent to demand the
fair value of the shares owned by the shareholder and must not vote the shares
in favor of the proposed action.

SUBDIVISION 4. NOTICE OF PROCEDURE; DEPOSIT OF SHARES.

(a)  After the proposed action has been approved by the board and, if necessary,
     the shareholders, the corporation shall send to all shareholders who have
     complied with subdivision 3 and to all shareholders entitled to dissent if
     no shareholder vote was required, a notice that contains:

     (1)  The address to which a demand for payment and certificates of
          certificated shares must be sent in order to obtain payment and the
          date by which they must be received;

     (2)  Any restrictions on transfer of uncertificated shares that will apply
          after the demand for payment is received;

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.3
<Page>

     (3)  A form to be used to certify the date on which the shareholder, or the
          beneficial owner on whose behalf the shareholder dissents, acquired
          the shares or an interest in them and to demand payment; and

     (4)  A copy of section 302A.471 and this section and a brief description of
          the procedures to be followed under these sections.

(b)  In order to receive the fair value of the shares, a dissenting shareholder
     must demand payment and deposit certificated shares or comply with any
     restrictions on transfer of uncertificated shares within 30 days after the
     notice required by paragraph (a) was given, but the dissenter retains all
     other rights of a shareholder until the proposed action takes effect.

SUBDIVISION 5. PAYMENT; RETURN OF SHARES.

(a)  After the corporate action takes effect, or after the corporation receives
     a valid demand for payment, whichever is later, the corporation shall remit
     to each dissenting shareholder who has complied with subdivisions 3 and 4
     the amount the corporation estimates to be the fair value of the shares,
     plus interest, accompanied by:

     (1)  The corporation's closing balance sheet and statement of income for a
          fiscal year ending not more than 16 months before the effective date
          of the corporate action, together with the latest available interim
          financial statements;

     (2)  An estimate by the corporation of the fair value of the shares and a
          brief description of the method used to reach the estimate; and

     (3)  A copy of section 302A.471 and this section, and a brief description
          of the procedure to be followed in demanding supplemental payment.

(b)  The corporation may withhold the remittance described in paragraph (a) from
     a person who was not a shareholder on the date the action dissented from
     was first announced to the public or who is dissenting on behalf of a
     person who was not a beneficial owner on that date. If the dissenter has
     complied with subdivisions 3 and 4, the corporation shall forward to the
     dissenter the materials described in paragraph (a), a statement of the
     reason for withholding the remittance, and an offer to pay to the dissenter
     the amount listed in the materials if the dissenter agrees to accept that
     amount in full satisfaction. The dissenter may decline the offer and demand
     payment under subdivision 6. Failure to do so entitles the dissenter only
     to the amount offered. If the dissenter makes demand, subdivision 7 and 8
     apply.

(c)  If the corporation fails to remit payment within 60 days of the deposit of
     certificates or the imposition of transfer restrictions on uncertificated
     shares, it shall return all deposited certificates and cancel all transfer
     restrictions. However, the corporation may again give notice under
     subdivision 4 and require deposit or restrict transfer at a later time.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.4
<Page>

SUBDIVISION 6. SUPPLEMENTAL PAYMENT; DEMAND. If a dissenter believes that the
amount remitted under subdivision 5 is less than the fair value of the shares
plus interest, the dissenter may give written notice to the corporation of the
dissenter's own estimate of the fair value of the shares, plus interest, within
30 days after the corporation mails the remittance under subdivision 5, and
demand payment of the difference. Otherwise, a dissenter is entitled only to the
amount remitted by the corporation.

SUBDIVISION 7. PETITION; DETERMINATION. If the corporation receives a demand
under subdivision 6, it shall, within 60 days after receiving the demand, either
pay to the dissenter the amount demanded or agreed to by the dissenter after
discussion with the corporation or file in a court a petition requesting that
the court determine the fair value of the shares, plus interest. The petition
shall be filed in the county in which the registered office of the corporation
is located, except that a surviving foreign corporation that receives a demand
relating to the shares of a constituent domestic corporation shall file the
petition in the county in this state in which the last registered office of the
constituent corporation was located. The petition shall name as parties all
dissenters who have demanded payment under subdivision 6 and who have not
reached agreement with the corporation. The corporation shall, after filing the
petition, serve all parties with a summons and copy of the petition under the
rules of civil procedure. Nonresidents of this state may be served by registered
or certified mail or by publication as provided by law. Except as otherwise
provided, the rules of civil procedures apply to this proceeding. The
jurisdiction of the court is plenary and exclusive. The court may appoint
appraisers, with powers and authorities the court deems proper, to receive
evidence on and recommend the amount of the fair value of the shares. The court
shall determine whether the shareholder or shareholders in question have fully
complied with the requirements of this section, and shall determine the fair
value of the shares, taking into account any and all factors the court finds
relevant, computed by any method or combination of methods that the court, in
its discretion, sees fit to use, whether or not used by the corporation or by a
dissenter. The fair value of the shares as determined by the court is binding on
all shareholders, wherever located. A dissenter is entitled to judgment in cash
for the amount by which the fair value of the shares as determined by the court,
plus interest, exceeds the amount, if any, remitted under subdivision 5, but
shall not be liable to the corporation for the amount, if any, by which the
amount, if any, remitted to the dissenter under subdivision 5 exceeds the fair
value of the shares as determined by the court, plus interest.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.5
<Page>

SUBDIVISION 8. COSTS; FEES; EXPENSES.

(a)  The court shall determine the costs and expenses of a proceeding under
     subdivision 7, including the reasonable expenses and compensation of any
     appraisers appointed by the court, and shall assess those costs and
     expenses against the corporation, except that the court may assess part or
     all of those costs and expenses against a dissenter whose action in
     demanding payment under subdivision 6 is found to be arbitrary, vexatious,
     or not in good faith.

(b)  If the court finds that the corporation has failed to comply substantially
     with this section, the court may assess all fees and expenses of any
     experts or attorneys as the court deems equitable. These fees and expenses
     may also be assessed against a person who has acted arbitrarily,
     vexatiously, or not in good faith in bringing the proceeding, and may be
     awarded to a party injured by those actions.

(c)  The court may award, in its discretion, fees and expenses to an attorney
     for the dissenters out of the amount awarded to the dissenters, if any.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       C.6
<Page>


EXHIBIT D

   Prospectus

[RIVERSOURCE INVESTMENT(SM) LOGO]

   RIVERSOURCE(SM)
   DISCIPLINED EQUITY FUND

   PROSPECTUS OCT. 3, 2005

- -  RIVERSOURCE DISCIPLINED EQUITY FUND (FORMERLY AXP(R) QUANTITATIVE LARGE CAP
   EQUITY FUND) SEEKS TO PROVIDE SHAREHOLDERS WITH LONG-TERM CAPITAL GROWTH.

   As with all mutual funds, the Securities and Exchange Commission has not
   approved or disapproved these securities or passed upon the adequacy of this
   prospectus. Any representation to the contrary is a criminal offense.

   You may qualify for sales charge discounts on purchases of Class A shares.
   Please notify your financial advisor or investment professional if you have
   other accounts holding shares of RiverSource funds to determine whether you
   qualify for a sales charge discount. See "Buying and Selling Shares" for more
   information.

   NOT FDIC INSURED - MAY LOSE VALUE - NO BANK GUARANTEE

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.1
<Page>

TABLE OF CONTENTS

THE FUND                                                                   D.  3
Objective                                                                  D.  3
Principal Investment Strategies                                            D.  3
Principal Risks                                                            D.  4
Past Performance                                                           D.  5
Fees and Expenses                                                          D.  8
Other Investment Strategies and Risks                                      D.  9
Fund Management and Compensation                                           D. 11

BUYING AND SELLING SHARES                                                  D. 16
Transactions Through Unaffiliated Financial Intermediaries                 D. 16
Valuing Fund Shares                                                        D. 17
Investment Options                                                         D. 18
Purchasing Shares                                                          D. 20
Sales Charges                                                              D. 23
Exchanging/Selling Shares                                                  D. 29

DISTRIBUTIONS AND TAXES                                                    D. 34
Dividends and Capital Gain Distributions                                   D. 34
Reinvestments                                                              D. 34
Taxes                                                                      D. 35

FINANCIAL HIGHLIGHTS                                                       D. 36

CORPORATE REORGANIZATION

On Sept. 30, 2005, Ameriprise Financial, Inc. (Ameriprise Financial) (formerly
American Express Financial Corporation), was spun off to shareholders of its
parent corporation, American Express Company (American Express), and is now a
separate public company, trading under the ticker symbol AMP. Ameriprise
Financial provides administrative services to the Fund and is the parent company
of the Fund's investment manager, RiverSource Investments, LLC; the Fund's
distributor, Ameriprise Financial Services, Inc. (formerly American Express
Financial Advisors, Inc.); the Fund's transfer agent, RiverSource Service
Corporation (formerly American Express Client Service Corporation); and the
Fund's custodian, Ameriprise Trust Company (formerly American Express Trust
Company). On Oct. 1, 2005, the Fund changed its name, such that it no longer is
branded AXP(R). The Fund now bears the RiverSource(SM) brand. Ameriprise
Financial and its subsidiaries are no longer affiliated with American Express.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.2
<Page>

THE FUND

OBJECTIVE

RiverSource Disciplined Equity Fund (the Fund) seeks to provide shareholders
with long-term capital growth. Because any investment involves risk, achieving
this objective cannot be guaranteed.

PRINCIPAL INVESTMENT STRATEGIES

Under normal market conditions, at least 80% of the Fund's net assets are
invested in equity securities of companies listed on U.S. exchanges with market
capitalizations greater than $5 billion at the time of purchase. The Fund will
provide shareholders with at least 60 days' notice of any change in the 80%
policy.

In pursuit of the Fund's objective, the investment manager (RiverSource
Investments, LLC) will choose equity investments by employing proprietary
quantitative methods based on sophisticated statistical analysis.

The universe of stocks from which the investment manager selects the Fund's
investments primarily will be those included in the Fund's benchmark, the S&P
500. Through extensive analysis of the domestic equity markets, the investment
manager has identified characteristics of certain stocks that have historically
outperformed their benchmarks. The Fund will hold both growth and value stocks.
Characteristics used to select stocks for the Fund include:

- -  Superior growth characteristics such as:

   -  strong earnings growth,

   -  positive earnings that exceed expectations published by third-party
      business analysts,

   -  consistency of earnings, and

   -  strong positive price trend.

- -  Superior value characteristics based on analysis of current stock prices
   relative to estimates of future prices.

In selecting the stocks for the Fund's portfolio, the investment manager employs
a rigorous process for evaluating the relationship between the risk associated
with each security and its potential for positive returns. This process includes
factors such as:

- -  Limits on positions relative to the benchmark through overweighting or
   underweighting.

- -  Limits on sector and industry allocations relative to the benchmark.

- -  Limits on size of holdings relative to market liquidity.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.3
<Page>

PRINCIPAL RISKS

This Fund is designed for investors with above-average risk tolerance. Please
remember that with any mutual fund investment you may lose money. Principal
risks associated with an investment in the Fund include:

ACTIVE MANAGEMENT RISK. The Fund is actively managed and its performance
therefore will reflect in part the ability of the portfolio managers to make
investment decisions that are suited to achieving the Fund's investment
objective. Due to its active management, the Fund could underperform other
mutual funds with similar investment objectives.

ISSUER RISK. An issuer may perform poorly, and therefore, the value of its
stocks and bonds may decline. Poor performance may be caused by poor management
decisions, competitive pressures, breakthroughs in technology, reliance on
suppliers, labor problems or shortages, corporate restructurings, fraudulent
disclosures, or other factors.

MARKET RISK. The market value of securities may fall or fail to rise. Market
risk may affect a single issuer, sector of the economy, industry, or the market
as a whole. The market value of securities may fluctuate, sometimes rapidly and
unpredictably. This risk is generally greater for small and mid-sized companies,
which tend to be more vulnerable to adverse developments. In addition, focus on
a particular style, for example, investment in growth or value securities, may
cause the Fund to underperform other mutual funds if that style falls out of
favor with the market. The quantitative methodology employed by the investment
manager has been extensively tested using historical securities market data, but
has only recently begun to be used to manage open-end mutual funds. There can be
no assurance that the methodology will enable the Fund to achieve its objective.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.4
<Page>

PAST PERFORMANCE

The following bar chart and table provide some illustration of the risks of
investing in the Fund by showing, respectively:

- -  how the Fund's performance has varied for each full calendar year shown on
   the bar chart, and

- -  how the Fund's average annual total returns compare to recognized indexes
   shown on the table.

Both the bar chart and the table assume that all distributions have been
reinvested. The performance of different classes varies because of differences
in sales charges and other fees and expenses. How the Fund has performed in the
past (before and after taxes) does not indicate how the Fund will perform in the
future. Performance reflects any fee waivers/expense caps in effect for the
periods reported. In the absence of such fee waivers/expense caps, performance
would have been lower. See "Fees and Expenses" for any current fee
waivers/expense caps.

BAR CHART. Class A share information is shown in the bar chart; the sales charge
for Class A shares is not reflected in the bar chart.

TABLE. The table shows total returns from hypothetical investments in Class A,
Class B, Class C and Class Y shares of the Fund. These returns are compared to
the indexes shown for the same periods. For purposes of the performance
calculation in the table we assumed:

- -  the maximum sales charge for Class A shares,

- -  sales at the end of the period and deduction of the applicable contingent
   deferred sales charge (CDSC) for Class B and Class C shares,

- -  no sales charge for Class Y shares, and

- -  no adjustments for taxes paid by an investor on the reinvested income and
   capital gains.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.5
<Page>

AFTER-TAX RETURNS

After-tax returns are shown only for Class A shares. After-tax returns for the
other classes will vary. After-tax returns are calculated using the highest
historical individual federal marginal income tax rate and do not reflect the
impact of state and local taxes. Actual after-tax returns will depend on your
tax situation and most likely will differ from the returns shown in the table.
If you hold your shares in a tax-deferred account, such as a 401(k) plan or an
IRA, the after-tax returns do not apply to you since you will not incur taxes
until you begin to withdraw from your account.

The return after taxes on distributions for a period may be the same as the
return before taxes for the same period if there were no distributions or if the
distributions were small. The return after taxes on distributions and sale of
Fund shares for a period may be greater than the return before taxes for the
same period if there was a tax loss realized on sale of Fund shares. The benefit
of the tax loss (since it can be used to offset other gains) may result in a
higher return.

[CHART]

                            CLASS A SHARE PERFORMANCE
                            (BASED ON CALENDAR YEARS)

<Table>
     
2004    +9.96%
</Table>

During the period shown in the bar chart, the highest return for a calendar
quarter was +9.77% (quarter ended Dec. 31, 2004) and the lowest return for a
calendar quarter was -3.05% (quarter ended Sept. 30, 2004).

The 5.75% sales charge applicable to Class A shares of the Fund is not reflected
in the bar chart; if reflected, returns would be lower than those shown. The
performance of other classes may vary from that shown because of differences in
expenses.

The Fund's Class A year-to-date return at June 30, 2005 was -0.15%.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.6
<Page>

AVERAGE ANNUAL TOTAL RETURNS (FOR PERIODS ENDED DEC. 31, 2004)

<Table>
<Caption>
                                                                                  SINCE
                                                                     1 YEAR     INCEPTION
                                                                          
RiverSource Disciplined Equity:
  Class A
     Return before taxes                                             +3.64%     +15.85%(a)
     Return after taxes on distributions                             +2.89%     +14.94%(a)
     Return after taxes on distributions and sale of fund shares     +2.65%     +13.16%(a)
  Class B
     Return before taxes                                             +4.16%     +16.92%(a)
  Class C
     Return before taxes                                             +8.16%     +19.05%(a)
  Class Y
     Return before taxes                                            +10.26%     +20.23%(a)
S&P 500 Index (reflects no deduction for fees, expenses or taxes)   +10.88%     +20.32%(b)
Lipper Large-Cap Core Funds Index                                    +8.29%     +17.00%(b)
</Table>

(a)  Inception date is April 24, 2003.

(b)  Measurement period started May 1, 2003.

The Standard & Poor's 500 Index (S&P 500 Index), an unmanaged index of common
stocks, is frequently used as a general measure of market performance. The index
reflects reinvestment of all distributions and changes in market prices, but
excludes brokerage commissions or other fees.

The Lipper Large-Cap Core Funds Index includes the 30 largest large-cap core
funds tracked by Lipper Inc. The index's returns include net reinvested
dividends. The Fund's performance is currently measured against this index for
purposes of determining the performance incentive adjustment. See "Fund
Management and Compensation" for more information.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.7
<Page>

FEES AND EXPENSES

Fund investors pay various expenses. The table below describes the fees and
expenses that you may pay if you buy and hold shares of the Fund. Expenses are
based on the Fund's most recent fiscal year, adjusted to reflect current fees.

SHAREHOLDER FEES (FEES PAID DIRECTLY FROM YOUR INVESTMENT)

<Table>
<Caption>
                                                               CLASS A    CLASS B    CLASS C    CLASS Y
                                                                                    
Maximum sales charge (load) imposed on purchases(a)
(as a percentage of offering price)                             5.75%      none       none       none

Maximum deferred sales charge (load) imposed on sales
(as a percentage of offering price at time of purchase)         none(b)       5%         1%      none
</Table>

ANNUAL FUND OPERATING EXPENSES

(EXPENSES THAT ARE DEDUCTED FROM FUND ASSETS)

<Table>
<Caption>
AS A PERCENTAGE OF AVERAGE DAILY NET ASSETS:                   CLASS A    CLASS B    CLASS C    CLASS Y
                                                                                    
Management fees(c)                                              0.62%      0.62%      0.62%      0.62%
Distribution (12b-1) fees                                       0.25%      1.00%      1.00%      0.00%
Other expenses(d)                                               0.49%      0.52%      0.52%      0.57%
Total                                                           1.36%      2.14%      2.14%      1.19%
Fee waiver/expense reimbursement                                0.09%      0.08%      0.06%      0.11%
Net expenses(e)                                                 1.27%      2.06%      2.08%      1.08%
</Table>

(a)  This charge may be reduced depending on the value of your total investments
     in RiverSource funds. See "Sales Charges."

(b)  For Class A purchases over $1,000,000 on which no sales charge is assessed,
     a 1% sales charge may apply if you sell your shares within one year after
     purchase.

(c)  Includes the impact of a performance incentive adjustment fee that
     increased the management fee by 0.02% for the most recent fiscal year. The
     index against which the Fund's performance is measured for purposes of
     determining the performance incentive adjustment is the Lipper Large-Cap
     Core Funds Index. See "Fund Management and Compensation" for more
     information.

(d)  Other expenses include an administrative services fee, a transfer agency
     fee, a custody fee and other nonadvisory expenses and, for Class Y shares,
     a shareholder service fee.

(e)  The investment manager and its affiliates have contractually agreed to
     waive certain fees and to absorb certain expenses until July 31, 2006,
     unless sooner terminated at the discretion of the Fund's Board. Any amounts
     waived will not be reimbursed by the Fund. Under this agreement, net
     expenses, before giving effect to any performance incentive adjustment,
     will not exceed 1.25% for Class A; 2.04% for Class B; 2.06% for Class C and
     1.06% for Class Y.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.8
<Page>

EXAMPLES

These examples are intended to help you compare the cost of investing in the
Fund with the cost of investing in other mutual funds.

These examples assume that you invest $10,000 in the Fund for the time periods
indicated and then redeem all of your shares at the end of those periods. These
examples also assume that your investment has a 5% return each year and that the
Fund's operating expenses remain the same. Although your actual costs may be
higher or lower, based on these assumptions your costs would be:

<Table>
<Caption>
                                                                1 YEAR    3 YEARS    5 YEARS   10 YEARS
                                                                                   
Class A(a)                                                       $697     $  973      $1,270     $2,113
Class B                                                          $709(b)  $1,063(b)   $1,343(b)  $2,272(c)
Class C                                                          $311(b)  $  665      $1,145     $2,472
Class Y                                                          $110     $  367      $  645     $1,438
</Table>

(a)  Includes a 5.75% sales charge.

(b)  Includes the applicable CDSC.

(c)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

You would pay the following expenses if you did not redeem your shares:

<Table>
<Caption>
                                                               1 YEAR     3 YEARS    5 YEARS   10 YEARS
                                                                                   
Class A(a)                                                      $697       $973       $1,270    $2,113
Class B                                                         $209       $663       $1,143    $2,272(b)
Class C                                                         $211       $665       $1,145    $2,472
Class Y                                                         $110       $367       $  645    $1,438
</Table>

(a)  Includes a 5.75% sales charge.

(b)  Based on conversion of Class B shares to Class A shares in the ninth year
     of ownership.

OTHER INVESTMENT STRATEGIES AND RISKS

OTHER INVESTMENT STRATEGIES. In addition to the principal investment strategies
previously described, the Fund may invest in other securities and may use other
investment strategies that are not principal investment strategies.
Additionally, the Fund may use derivatives (financial instruments where the
value depends upon, or is derived from, the value of something else) such as
futures, options and forward contracts, to produce incremental earnings, to
hedge existing positions or to increase flexibility. Just as with securities in
which the Fund invests directly, derivatives are subject to a number of risks,
including market, liquidity, interest rate and credit risk. In addition, a
relatively small price movement in the underlying security, currency or index
may result in a substantial gain or loss for the Fund using derivatives. Even
though the Fund's policies permit the use of derivatives in this manner, the
portfolio managers are not required to use derivatives. For more information on
strategies and

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       D.9
<Page>

holdings, and the risks of such strategies, including other derivative
instruments that the Fund may use, see the Fund's Statement of Additional
Information (SAI) and its annual and semiannual reports.

UNUSUAL MARKET CONDITIONS. During unusual market conditions, the Fund may
temporarily invest more of its assets in money market securities than during
normal market conditions. Although investing in these securities would serve
primarily to avoid losses, this type of investing also could prevent the Fund
from achieving its investment objective. During these times, the portfolio
managers may make frequent securities trades that could result in increased
fees, expenses and taxes, and decreased performance.

PORTFOLIO TURNOVER. Trading of securities may produce capital gains, which are
taxable to shareholders when distributed. Active trading may also increase the
amount of commissions or mark-ups paid to broker-dealers that the Fund pays when
it buys and sells securities. The Fund's historical portfolio turnover rate,
which measures how frequently the Fund buys and sells investments, is shown in
the "Financial Highlights."

SECURITIES TRANSACTION COMMISSIONS. Securities transactions involve the payment
by the Fund of brokerage commissions to broker-dealers, on occasion as
compensation for research or brokerage services (commonly referred to as "soft
dollars"), as the portfolio managers buy and sell securities for the Fund in
pursuit of its objective. A description of the policies governing the Fund's
securities transactions and the dollar value of brokerage commissions paid by
the Fund are set forth in the SAI. The brokerage commissions set forth in the
SAI do not include implied commissions or mark-ups (implied commissions) paid by
the Fund for principal transactions (transactions made directly with a dealer or
other counterparty), including most fixed income securities and certain
derivatives. In addition, brokerage commissions do not reflect other elements of
transaction costs, including the extent to which the Fund's purchase and sale
transactions may cause the market to move and change the market price for an
investment.

Although brokerage commissions and implied commissions are not reflected in the
expense table under "Fees and Expenses," they are reflected in the total return
of the Fund.

DIRECTED BROKERAGE. The Fund's Board of Directors (Board) has adopted a policy
prohibiting the investment manager, or any subadviser, from considering sales of
shares of the Fund as a factor in the selection of broker-dealers through which
to execute securities transactions.

Additional information regarding securities transactions can be found in the
SAI.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.10
<Page>

FUND MANAGEMENT AND COMPENSATION

INVESTMENT MANAGER

RiverSource Investments, LLC (the investment manager or RiverSource
Investments), 200 Ameriprise Financial Center, Minneapolis, Minnesota 55474, is
the investment manager to the RiverSource funds, and is a wholly-owned
subsidiary of Ameriprise Financial, Inc. (Ameriprise Financial). Ameriprise
Financial is a financial planning and financial services company that has been
offering solutions for clients' asset accumulation, income management and
protection needs for more than 110 years. In addition to managing investments
for all of the RiverSource funds, RiverSource Investments manages investments
for itself and its affiliates. For institutional clients, RiverSource
Investments and its affiliates provide investment management and related
services, such as separate account asset management, institutional trust and
custody, and employee benefit plan administration, as well as other investment
products. For all of its clients, RiverSource Investments seeks to allocate
investment opportunities in an equitable manner over time. See the SAI for more
information.

The Fund pays RiverSource Investments a fee for managing its assets. Under the
Investment Management Services Agreement (Agreement), the fee for the most
recent fiscal year was 0.62% of the Fund's average daily net assets, including
an adjustment under the terms of a performance incentive arrangement. The
adjustment is computed by comparing the Fund's performance to the performance of
an index of comparable funds published by Lipper Inc. The index against which
the Fund's performance is currently measured for purposes of the performance
incentive adjustment is the Lipper Large-Cap Core Funds Index. In certain
circumstances, the Fund's Board may approve a change in the index. The maximum
adjustment (increase or decrease) is 0.12% of the Fund's average net assets on
an annual basis. Under the Agreement, the Fund also pays taxes, brokerage
commissions, and nonadvisory expenses. A discussion regarding the basis for the
Board approving the Agreement is available in the Fund's most recent shareholder
report.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.11
<Page>

PORTFOLIO MANAGER(S). The portfolio managers responsible for the Fund's
day-to-day management are:

Dimitris J. Bertsimas, Senior Portfolio Manager

- -  Managed the Fund since 2003.

- -  Joined RiverSource Investments (previously American Express Financial
   Corporation (AEFC)) as a portfolio manager in 2002.

- -  Co-founded Dynamic Ideas, LLC, a consulting firm specializing in the
   development of quantitative tools for the asset management industry, where he
   served as Managing Partner, 1999 to 2002. Currently, Boeing Professor of
   Operations Research, Sloan School of Management and the Operations Research
   Center, MIT.

- -  Began investment career as a consultant to asset managers in 1993; became
   portfolio manager in 2002.

- -  MS and Ph.D., MIT.

Gina K. Mourtzinou, Portfolio Manager

- -  Managed the Fund since 2003.

- -  Joined RiverSource Investments (previously AEFC) as a portfolio manager in
   2002.

- -  Co-founded Dynamic Ideas, LLC, a consulting firm specializing in the
   development of quantitative tools for the asset management industry, where
   she served as Vice President of Research and Analytics, 1999 to 2002.

- -  Began investment career as a consultant to asset managers in 1996; became
   portfolio manager in 2002.

- -  Ph.D., MIT.

The SAI provides additional information about portfolio manager compensation,
management of other accounts and ownership of shares in the Fund.

ADDITIONAL SERVICES AND COMPENSATION

As described above, RiverSource Investments receives compensation for acting as
the Fund's investment manager. RiverSource Investments and its affiliates also
receive compensation for providing other services to the Fund.

ADMINISTRATION SERVICES. Ameriprise Financial, 200 Ameriprise Financial Center,
Minneapolis, Minnesota 55474, provides or compensates others to provide
administrative services to the RiverSource funds. These services include
administrative, accounting, treasury, and other services. Fees paid by the Fund
for these services are included under "Other expenses" in the expense table
under "Fees and Expenses."

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.12
<Page>

CUSTODY SERVICES. Ameriprise Trust Company, 200 Ameriprise Financial Center,
Minneapolis, Minnesota 55474 (the custodian or Ameriprise Trust Company),
provides custody services to all but a limited number of the RiverSource funds,
for which U.S. Bank National Association provides custody services. In addition,
Ameriprise Trust Company is paid for certain transaction fees and out-of-pocket
expenses incurred while providing services to the funds. Fees paid by the Fund
for these services are included under "Other expenses" in the expense table
under "Fees and Expenses."

DISTRIBUTION SERVICES. Ameriprise Financial Services, Inc., 70100 Ameriprise
Financial Center, Minneapolis, Minnesota 55474 (the distributor or Ameriprise
Financial Services), provides underwriting and distribution services to the
RiverSource funds. Under the Distribution Agreement and related distribution and
shareholder servicing plan(s), the distributor receives distribution and
shareholder servicing fees. The distributor pays a portion of these fees to
financial advisors and retains a portion of these fees to support its
distribution and shareholder servicing activity. For third party sales, the
distributor re-allows a portion of these fees to the financial intermediaries
that sell Fund shares and provide services to shareholders, and retains a
portion of these fees to support its distribution and shareholder servicing
activity. Fees paid by the Fund for these services are set forth under
"Distribution (12b-1) fees" in the expense table under "Fees and Expenses." More
information on how these fees are used is set forth under "Investment Options"
and in the SAI. The distributor also administers any sales charges paid by an
investor at the time of purchase or at the time of sale (deferred sales charge).
See "Shareholder Fees (fees paid directly from your investment)" under "Fees and
Expenses" for the scheduled sales charge of each share class. See "Buying and
Selling Shares" for variations in the scheduled sales charges, and for how these
sales charges are used by the distributor. See "Other Investment Strategies and
Risks" for Fund policy regarding directed brokerage.

TRANSFER AGENCY SERVICES. RiverSource Service Corporation, 70100 Ameriprise
Financial Center, Minneapolis, Minnesota 55474 (the transfer agent or
RiverSource Service Corporation), provides or compensates others to provide
transfer agency services to the RiverSource funds. The RiverSource funds pay the
transfer agent a fee, which varies by share class, as set forth in the SAI and
reimburses the transfer agent for its out-of-pocket expenses incurred while
providing these transfer agency services to the funds. Fees paid by the Fund for
these services are included under "Other expenses" in the expense table under
"Fees and Expenses." RiverSource funds are primarily sold through Ameriprise
Financial Services which is allocated a portion of these fees for providing
services to Fund shareholders. RiverSource Service Corporation may also pay a
portion of these fees to other financial intermediaries that provide
sub-recordkeeping and other services to Fund shareholders.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.13
<Page>

The SAI provides additional information about the services provided and the fee
schedules for the agreements set forth above.

PAYMENTS TO FINANCIAL INTERMEDIARIES

RiverSource Investments and its affiliates may make additional cash payments out
of their own resources to financial intermediaries, such as broker-dealers,
banks, qualified plan administrators and recordkeepers, or other institutions,
including inter-company allocation of resources to affiliated broker-dealers
such as Ameriprise Financial Services (financial intermediaries) in connection
with the sale of shares of the Fund and/or the provision of services to the Fund
or its shareholders. These payments may create an incentive for the financial
intermediary, its employees or registered representatives to recommend or sell
shares of the Fund to its customers. These payments and inter-company
allocations are in addition to any 12b-1 distribution and/or shareholder service
fees or other amounts paid by the Fund under distribution or shareholder
servicing plans, or paid by the Fund for shareholder account maintenance,
sub-accounting or recordkeeping services provided directly by the financial
intermediary providing such services. In exchange for these payments and
inter-company allocations, RiverSource Investments and its affiliates may
receive preferred access to registered representatives of a financial
intermediary (for example, the ability to make presentations in branch offices
or at conferences) or preferred access to customers of the financial
intermediary (for example, the ability to advertise or directly interact with
the financial intermediary's customers in order to sell the Fund). These
arrangements are sometimes referred to as "revenue sharing payments." In some
cases, these arrangements may create an incentive for a financial intermediary
or its representatives to recommend or sell shares of a fund and may create a
conflict of interest between a financial intermediary's financial interest and
its duties to its customers. Please contact the financial intermediary through
which you are purchasing shares of the Fund for details about any payments it
may receive in connection with the sale of Fund shares or the provision of
services to the Fund.

These payments and inter-company allocations are usually calculated based on a
percentage of fund sales, and/or as a percentage of fund assets attributable to
a particular financial intermediary. These payments may also be negotiated based
on other criteria or factors including, but not limited to, the financial
intermediary's affiliation with the investment manager, its reputation in the
industry, its ability to attract and retain assets, its access to target
markets, its customer relationships and the scope and quality of services it
provides. The amount of payment or inter-company allocation may vary by
financial intermediary and by type of sale (e.g., purchases of different share
classes or purchases of the Fund through a qualified plan or through a wrap
program), and may be significant.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.14
<Page>

From time to time, RiverSource Investments and its affiliates may make other
payments, including non-cash compensation, to financial intermediaries or their
representatives in the form of gifts of nominal value, occasional meals,
tickets, or other entertainment, support for due diligence trips, educational
meetings or conference sponsorships, support for recognition programs, and other
forms of non-cash compensation permissible under regulations to which these
financial intermediaries and their representatives are subject.

ADDITIONAL MANAGEMENT INFORMATION

MANAGER OF MANAGER EXEMPTION. The Fund operates under an order from the
Securities and Exchange Commission that permits RiverSource Investments, subject
to the approval of the Board, to appoint a subadviser or change the terms of a
subadvisory agreement for the Fund without first obtaining shareholder approval.
The order permits the Fund to add or change unaffiliated subadvisers or the fees
paid to subadvisers from time to time without the expense and delays associated
with obtaining shareholder approval of the change.

AFFILIATED FUNDS-OF-FUNDS. RiverSource Investments also serves as investment
manager to the RiverSource Portfolio Builder Funds (Portfolio Builder Funds), a
group of six funds-of-funds that provide asset-allocation services to
shareholders by investing in shares of other RiverSource funds, including the
Fund. The Fund may experience relatively large purchases or redemptions from the
Portfolio Builder Funds. Although RiverSource Investments seeks to minimize the
impact of these transactions by structuring them over a reasonable period of
time, the Fund may experience increased expenses as it buys and sells securities
to manage transactions for the Portfolio Builder Funds. In addition, because the
Portfolio Builder Funds may own a substantial portion of the Fund, a redemption
by the Portfolio Builder Funds could cause the Fund's expense ratio to increase
as the Fund's fixed costs would be spread over a smaller asset base. RiverSource
Investments monitors expense levels and is committed to offering funds that are
competitively priced. RiverSource Investments will report to the Fund's Board on
the steps it has taken to manage any potential conflicts.

FUND HOLDINGS DISCLOSURE. The Fund's Board has adopted policies and procedures
that govern the timing and circumstances of disclosure to shareholders and third
parties of information regarding the securities owned by the Fund. A description
of these policies and procedures is included in the Fund's SAI.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.15
<Page>

BUYING AND SELLING SHARES

TRANSACTIONS THROUGH UNAFFILIATED FINANCIAL INTERMEDIARIES

Where authorized by the distributor, shares of the Fund may be available through
certain 401(k) or other qualified plans, banks, broker-dealers or other
institutions (financial intermediaries). These financial intermediaries may
charge you additional fees for the services they provide and they may have
different policies not described in this prospectus. Some policy differences may
include different minimum investment amounts, exchange privileges, fund choices
and cutoff times for investments. Additionally, recordkeeping, transaction
processing and payments of distributions relating to your account may be
performed by the financial intermediaries or their representatives through whom
shares are held. Since the Fund may not have a record of your transactions, you
should always contact the financial intermediary through whom you purchased the
Fund to make changes to or give instructions concerning your account or to
obtain information about your account. The Fund and the distributor are not
responsible for the failure of one of these financial intermediaries to carry
out its obligations to its customers.

AVAILABILITY AND TRANSFERABILITY OF FUND SHARES. Please consult your investment
professional or financial intermediary to determine availability of the Fund.
Currently, RiverSource funds may be purchased or sold through affiliated
broker-dealers of RiverSource Investments, including Ameriprise Financial
Services and Securities America, Inc. (Securities America), and through a
limited number of unaffiliated institutions. If you set up an account at another
financial intermediary, you will not be able to transfer RiverSource fund
holdings to that account unless that institution has obtained a selling
agreement with the distributor of the RiverSource funds. If you set up an
account with an unaffiliated financial intermediary that does not have, and is
unable to obtain, such a selling agreement, you must either maintain your
position with Ameriprise Financial Services or Securities America, find another
financial intermediary with such a selling agreement, or sell your shares,
paying any applicable deferred sales charge. Please be aware that transactions
in taxable accounts would generate a taxable event and may result in an
increased income tax liability.

For more information, please call RiverSource Service Corporation at
(888) 791-3380.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.16
<Page>

The public offering price for Class A shares of the Fund is the net asset value
(NAV) plus a sales charge, and for Class B, C, and Y shares, the NAV. Orders in
good form are priced at the NAV next determined after you place your order. Good
form or good order means that your instructions have been received in the form
required by the distributor. This may include, for example, providing the fund
name and account number, the amount of the transaction and all required
signatures. For more information, refer to the sections on "Purchasing Shares"
and "Exchanging/Selling Shares," or contact your financial advisor or investment
professional. If you buy or sell shares through an authorized financial
intermediary, consult that firm to determine its procedures for accepting and
processing orders. The financial intermediary may charge a fee for its services.

VALUING FUND SHARES

The NAV is the value of a single share of the Fund. The NAV is determined by
dividing the value of the Fund's assets, minus any liabilities, by the number of
shares outstanding. The NAV is calculated as of the close of business on the
New York Stock Exchange (NYSE), normally 4:00 p.m. Eastern time, on each day
that the NYSE is open. The Fund's securities are valued primarily on the basis
of market quotations obtained from outside pricing services approved and
monitored under procedures adopted by the Board. Certain short-term securities
with maturities of 60 days or less are valued at amortized cost.

When reliable market quotations are not readily available, securities are priced
at fair value based on procedures adopted by the Board. These procedures are
also used when the value of a security held by the Fund is materially affected
by events that occur after the close of the primary market on which the security
is traded but prior to the time as of which the Fund's NAV is determined.
Valuing securities at fair value involves reliance on judgment. The fair value
of a security is likely to differ from any available quoted or published price.

Foreign investments are valued in U.S. dollars. Some of the Fund's securities
may be listed on foreign exchanges that trade on weekends or other days when the
Fund does not price its shares. In that event, the NAV of the Fund's shares may
change on days when shareholders will not be able to purchase or sell the Fund's
shares.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.17
<Page>

INVESTMENT OPTIONS

1. CLASS A shares are sold to the public with a sales charge at the time of
   purchase and an annual distribution and shareholder servicing (12b-1) fee of
   0.25%.

2. CLASS B shares are sold to the public with a contingent deferred sales charge
   (CDSC) and an annual distribution and shareholder servicing (12b-1) fee of
   1.00%.

3. CLASS C shares are sold to the public without a sales charge at the time of
   purchase and with an annual distribution and shareholder servicing (12b-1)
   fee of 1.00%. Class C shares redeemed within one year after purchase may be
   subject to a CDSC.

4. CLASS Y shares are sold to qualifying institutional investors without a sales
   charge or distribution fee, but with a separate shareholder servicing fee of
   0.10%. Please see the SAI for information on eligibility requirements to
   purchase Class Y shares.

The distribution and shareholder servicing fees for Class A, Class B and Class C
shares are subject to the requirements of Rule 12b-1 under the Investment
Company Act of 1940, as amended, and are used to reimburse the distributor for
certain expenses it incurs in connection with distributing the Fund's shares and
providing services to Fund shareholders. These expenses include payment of
distribution and shareholder servicing fees to financial intermediaries that
sell shares of the Fund. Financial intermediaries receive shareholder servicing
fees equal to 0.25% of the average daily net assets of Class A, Class B and
Class C shares sold and held through them. For Class A and Class B shares, the
distributor begins to pay these fees immediately after purchase. For Class C
shares, the distributor begins to pay these fees one year after purchase.
Financial intermediaries also receive distribution fees equal to 0.75% of the
average daily net assets of Class C shares sold and held through them, which the
distributor begins to pay one year after purchase. For Class B shares, the
Fund's distributor retains the 0.75% distribution fee in order to finance the
payment of sales commissions to financial intermediaries that sell Class B
shares, and to pay for other distribution related expenses. Financial
intermediaries may compensate their financial advisors and investment
professionals with the shareholder servicing and distribution fees paid to them
by the distributor.

The shareholder servicing fees for Class Y shares are used to reimburse the
distributor for providing services and assistance to shareholders regarding
ownership of their shares or their accounts.

The Fund also offers an additional class of shares, Class I, exclusively to
certain institutional investors. Class I shares are made available through a
separate prospectus supplement provided to investors eligible to purchase the
shares.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.18
<Page>

INVESTMENT OPTIONS SUMMARY

The Fund offers different classes of shares. There are differences among the
fees and expenses for each class. Not everyone is eligible to buy every class.
After determining which classes you are eligible to buy, decide which class best
suits your needs. Your financial advisor or investment professional can help you
with this decision.

The following table shows the key features of each class:

<Table>
<Caption>
                           CLASS A              CLASS B              CLASS C              CLASS Y
- --------------------------------------------------------------------------------------------------------
                                                                              
AVAILABILITY               Available to all     Available to all     Available to all     Limited to
                           investors.           investors.           investors.           qualifying
                                                                                          institutional
                                                                                          investors.

INITIAL SALES CHARGE       Yes. Payable at      No. Entire           No. Entire           No. Entire
                           time of purchase.    purchase price is    purchase price is    purchase price is
                           Lower sales charge   invested in shares   invested in shares   invested in shares
                           for larger           of the Fund.         of the Fund.         of the Fund.
                           investments.

DEFERRED SALES CHARGE      On purchases over    Maximum 5% CDSC      1% CDSC may apply    None.
                           $1,000,000, 1%       during the first     if you sell your
                           CDSC may apply if    year decreasing      shares within one
                           you sell your        to 0% after six      year after
                           shares within one    years.               purchase.
                           year after
                           purchase.

12b-1 DISTRIBUTION FEE     Yes.                 Yes.                 Yes.                 Yes.
AND/OR SHAREHOLDER         0.25%                1.00%                1.00%                0.10%
SERVICE FEE*

CONVERSION TO CLASS A      N/A                  Yes, automatically   No.                  No.
                                                in ninth year of
                                                ownership.
</Table>

*  The Fund has adopted a plan under Rule 12b-1 of the Investment Company Act of
   1940, as amended, that allows it to pay distribution and shareholder
   servicing-related expenses for the sale of Class A, Class B and Class C
   shares. The Fund has also adopted a separate shareholder servicing plan to
   pay for servicing-related expenses related to Class Y shares. Because these
   fees are paid out of the Fund's assets on an on-going basis, over time, these
   fees will increase the cost of your investment and may cost you more than
   paying other types of distribution (sales) or servicing charges.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.19
<Page>

SHOULD YOU PURCHASE CLASS A, CLASS B OR CLASS C SHARES?

If your investments in RiverSource funds total $100,000 or more, Class A shares
may be the better option because the sales charge is reduced for larger
purchases. If you qualify for a waiver of the sales charge, Class A shares will
be the best option.

If you invest less than $100,000, consider how long you plan to hold your
shares. Class B shares have a higher annual distribution fee than Class A shares
and a CDSC for six years. Class B shares convert to Class A shares in the ninth
year of ownership. Class B shares purchased through reinvested dividends and
distributions also will convert to Class A shares in the same proportion as the
other Class B shares.

Class C shares also have a higher annual distribution fee than Class A shares.
Class C shares have no sales charge if you hold the shares for longer than one
year. Unlike Class B shares, Class C shares do not convert to Class A. As a
result, you will pay a 1% distribution fee for as long as you hold Class C
shares. If you choose a deferred sales charge option (Class B or Class C), you
should consider the length of time you intend to hold your shares. To help you
determine which investment is best for you, consult your financial advisor or
investment professional.

For more information, see the SAI.

PURCHASING SHARES

Financial intermediaries are required by law to obtain certain personal
information from each person who opens an account in order to verify the
identity of the person. As a result, when you open an account you will be asked
to provide your name, permanent street address, date of birth, and Social
Security or Employer Identification number. You may also be asked for other
identifying documents or information. If you do not provide this information,
the Fund, or the financial intermediary through which you are investing in the
Fund, may not be able to open an account for you. If the Fund or if the
financial intermediary through which you are investing in the Fund is unable to
verify your identity, your account may be closed, or other steps may be taken,
as deemed appropriate.

TO PURCHASE SHARES WITH A FINANCIAL INTERMEDIARY OTHER THAN AMERIPRISE FINANCIAL
SERVICES, PLEASE CONSULT YOUR FINANCIAL INTERMEDIARY. SEE "TRANSACTIONS THROUGH
UNAFFILIATED FINANCIAL INTERMEDIARIES" FOR MORE INFORMATION. THE FOLLOWING
SECTION EXPLAINS POLICIES OF THE RIVERSOURCE FUNDS AND HOW YOU CAN PURCHASE FUND
SHARES FROM AMERIPRISE FINANCIAL SERVICES.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.20
<Page>

If you do not have an existing RiverSource fund account with Ameriprise
Financial Services, you will need to establish a brokerage account. Your
financial advisor or investment professional will help you fill out and submit
an application. Once your account is set up, you can choose among several
convenient ways to invest.

When you purchase, your order will be priced at the next NAV calculated after
your order is accepted by the Fund. If your application does not specify which
class of shares you are purchasing, we will assume you are investing in Class A
shares.

IMPORTANT: When you open an account, you must provide your correct Taxpayer
Identification Number (TIN), which is either your Social Security or Employer
Identification number.

If you do not provide and certify the correct TIN, you could be subject to
backup withholding of 28% of taxable distributions and proceeds from certain
sales and exchanges. You also could be subject to further penalties, such as:

- -  a $50 penalty for each failure to supply your correct TIN,

- -  a civil penalty of $500 if you make a false statement that results in no
   backup withholding, and

- -  criminal penalties for falsifying information.

You also could be subject to backup withholding, if the IRS notifies us to do
so, because you failed to report required interest or dividends on your tax
return.

HOW TO DETERMINE THE CORRECT TIN

<Table>
<Caption>
FOR THIS TYPE OF ACCOUNT:                 USE THE SOCIAL SECURITY OR EMPLOYER IDENTIFICATION NUMBER OF:
                                       
Individual or joint account               The individual or one of the owners listed on the joint
                                          account

Custodian account of a minor              The minor
(Uniform Gifts/Transfers to Minors Act)

A revocable living trust                  The grantor-trustee (the person who puts the money into the
                                          trust)

An irrevocable trust, pension trust or    The legal entity (not the personal representative or trustee,
estate                                    unless no legal entity is designated in the account title)

Sole proprietorship or single-owner LLC   The owner

Partnership or multi-member LLC           The partnership

Corporate or LLC electing corporate       The corporation
status on Form 8832

Association, club or tax-exempt           The organization
organization
</Table>

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.21
<Page>

For details on TIN requirements, contact your financial advisor or investment
professional to obtain a copy of Form W-9, "Request for Taxpayer Identification
Number and Certification." You also may obtain the form on the Internet at
www.irs.gov.

METHODS OF PURCHASING SHARES

BY MAIL

Once your account has been established, send your check to:

AMERIPRISE FINANCIAL SERVICES
70200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474

MINIMUM AMOUNTS
Initial investment:         $2,000*
Additional investments:     $500**
Account balances:           $300
Qualified account balances: none

If your Fund account balance falls below $300 for any reason, including a market
decline, you will be asked to increase it to $300 or establish a scheduled
investment plan. If you do not do so within 30 days, your shares may be
automatically redeemed and the proceeds mailed to you.

 * $1,000 for tax qualified accounts.

** $100 minimum add-on for existing mutual fund accounts outside of a brokerage
   account.

BY SCHEDULED INVESTMENT PLAN

MINIMUM AMOUNTS
Initial investment:         $2,000*
Additional investments:     $100**
Account balances:           none (on a scheduled investment plan with
                            monthly payments)

If your Fund account balance is below $2,000, you must make payments at least
monthly.

 * $100 for accounts outside of a brokerage account.

** $50 minimum per payment for qualified accounts outside of a brokerage
   account.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.22
<Page>

BY WIRE OR ELECTRONIC FUNDS TRANSFER

Please contact your financial advisor or investment professional for specific
instructions.

Minimum wire purchase amount: $1,000 or new account minimum, as applicable.

BY TELEPHONE

If you have a brokerage account, you may use the money in your account to make
initial and subsequent purchases.

To place your order, call:

(800) 297-7378 for brokerage accounts

(800) 967-4377 for wrap accounts

SALES CHARGES

CLASS A -- INITIAL SALES CHARGE ALTERNATIVE

Your purchase price for Class A shares is generally the NAV plus a front-end
sales charge. Sales charges vary depending on the amount of your purchase. The
distributor receives the sales charge and re-allows a portion of the sales
charge to the financial intermediary through which you purchased the shares. The
distributor retains the balance of the sales charge. Sales charge* for Class A
shares:

<Table>
<Caption>
                           AS A % OF           AS A % OF         MAXIMUM RE-ALLOWANCE
TOTAL MARKET VALUE      PURCHASE PRICE**  NET AMOUNT INVESTED  AS A % OF PURCHASE PRICE
                                                      
Up to $49,999                5.75%               6.10%                  5.00%
$50,000-$99,999              4.75                4.99                   4.00
$100,000-$249,999            3.50                3.63                   3.00
$250,000-$499,999            2.50                2.56                   2.15
$500,000-$999,999            2.00                2.04                   1.75
$1,000,000 or more***        0.00                0.00                   0.00
</Table>

  *  Because of rounding in the calculation of the offering price, the portion
     of the sales charge retained by the distributor may vary and the actual
     sales charge you pay may be more or less than the sales charge calculated
     using these percentages.

 **  Offering price includes the sales charge.

***  Although there is no sales charge for purchases with a total market value
     over $1,000,000, and therefore no re-allowance, the distributor may pay a
     sales commission to a financial intermediary making a sale with a total
     market value of $1,000,000 to $3,000,000, a sales commission up to 1.00%;
     $3,000,000 to $10,000,000, a sales commission up to 0.50%; and $10,000,000
     or more, a sales commission up to 0.25%.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.23
<Page>

RIGHTS OF ACCUMULATION

YOU MAY BE ABLE TO REDUCE THE SALES CHARGE ON CLASS A SHARES, BASED ON THE
COMBINED MARKET VALUE OF YOUR ACCOUNTS.

The current market values of the following investments are eligible to be added
together for purposes of determining the sales charge on your purchase:

- -  Your current investment in this Fund, and

- -  Previous investments you and members of your primary household group have
   made in Class A, Class B or Class C shares in this and other RiverSource
   funds, provided your investment was subject to a sales charge.

   -  Your primary household group consists of you, your spouse or domestic
      partner, and your unmarried children under age 21 sharing a mailing
      address. For purposes of this policy a domestic partner is an individual
      who shares your primary residence and with whom you own joint property. If
      you or any member of your primary household group elects to separate from
      the primary household group (for example, by asking that account
      statements be sent to separate addresses), your assets will no longer be
      combined for purposes of reducing your sales charge.

The following accounts are eligible to be included in determining the sales
charge on your purchase:

- -  Individual or joint accounts held outside of a brokerage account;

- -  Individual or joint accounts held through a brokerage account;

- -  Roth and traditional IRAs, SEPs, SIMPLEs and TSCAs, provided they are
   invested in Class A, Class B or Class C shares that are subject to a sales
   charge;

- -  UGMA/UTMA accounts for which you, your spouse, or your domestic partner is
   parent or guardian of the minor child;

- -  Revocable trust accounts for which you or a member of your primary household
   group, individually, is the beneficiary;

- -  Accounts held in the name of your, your spouse's, or your domestic partner's
   sole proprietorship or single owner limited liability company or S
   corporation; and

- -  Qualified retirement plan assets, provided that you are the sole owner of the
   business sponsoring the plan, are the sole participant (other than a spouse)
   in the plan, and have no intention of adding participants to the plan.

The following accounts are NOT eligible to be included in determining the sales
charge on your purchase:

- -  Accounts of pension and retirement plans with multiple participants, such as
   401(k) plans (which are combined to reduce the sales charge for the entire
   pension or retirement plan and therefore are not used to reduce the sales
   charge for your individual accounts);

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.24
<Page>

- -  Investments in Class A shares where the sales charge is waived, for example,
   purchases through wrap accounts, including Ameriprise Strategic Portfolio
   Service ADVANTAGE (SPS);

- -  Investments in Class D, Class E, or Class Y shares;

- -  Investments in 529 plans, donor advised funds, variable annuities, variable
   life insurance products, wrap accounts or managed separate accounts; and

- -  Charitable and irrevocable trust accounts.

If you purchase RiverSource fund shares through different channels or different
financial intermediaries, and you want to include those assets toward a reduced
sales charge, you must inform Ameriprise Financial Services, your financial
advisor or investment professional in writing about the other accounts when
placing your purchase order. When placing your purchase order, you must provide
your most recent account statement and contact information regarding the other
accounts. A financial intermediary other than Ameriprise Financial Services may
require additional information.

UNLESS YOU PROVIDE AMERIPRISE FINANCIAL SERVICES, YOUR FINANCIAL ADVISOR OR YOUR
INVESTMENT PROFESSIONAL IN WRITING WITH INFORMATION ABOUT ALL OF THE ACCOUNTS
THAT MAY COUNT TOWARD A SALES CHARGE REDUCTION, THERE CAN BE NO ASSURANCE THAT
YOU WILL RECEIVE ALL OF THE REDUCTIONS FOR WHICH YOU MAY BE ELIGIBLE.

For more information on rights of accumulation, please see the SAI.

LETTER OF INTENT (LOI)

Generally, if you intend to invest $50,000 or more over a period of 13 months,
you may be able to reduce the front-end sales charges for investments in Class A
shares by completing and filing a LOI form. The LOI becomes effective only after
the form is processed in good order by the distributor. An LOI can be backdated
up to a maximum of 90 days. If the LOI is backdated, you may include prior
investments in Class A shares that were charged a front-end sales load toward
the LOI commitment amount. If the LOI is backdated, the 13 month period begins
on the date of the earliest purchase included in the LOI.

HOLDINGS MORE THAN 90 DAYS OLD. Purchases made more than 90 days before your LOI
is processed by the distributor will not be counted towards the commitment
amount of the LOI and cannot be used as the starting point for the LOI. While
these purchases cannot be included in an LOI, they may help you obtain a reduced
sales charge on future purchases as described in "Rights of Accumulation."

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.25
<Page>

NOTIFICATION OBLIGATION. If purchasing shares in a brokerage account or through
a financial intermediary, you must request the reduced sales charge when you buy
shares. If you do not complete and file the LOI form, or do not request the
reduced sales charge at the time of purchase, you will not be eligible for the
reduced sales charge.

For more details on LOIs, please contact your financial advisor, investment
professional or see the SAI.

WAIVERS OF THE SALES CHARGE FOR CLASS A SHARES

Sales charges do not apply to:

- -  current or retired Board members, officers or employees of the Fund or
   Ameriprise Financial or its subsidiaries, their spouses or domestic partners,
   children and parents.

- -  current or retired Ameriprise Financial Services financial advisors,
   employees of financial advisors, their spouses or domestic partners, children
   and parents.

- -  portfolio managers employed by subadvisers of the RiverSource funds,
   including their spouses or domestic partners, children and parents.

- -  registered representatives and other employees of financial intermediaries
   having a sub-distribution agreement with the distributor, including their
   spouses, domestic partners, children and parents.

- -  qualified employee benefit plans offering participants daily access to
   RiverSource funds. Eligibility must be determined in advance. For assistance,
   please contact your financial advisor or investment professional.
   Participants in certain qualified plans where the initial sales charge is
   waived may be subject to a deferred sales charge of up to 4%.

- -  shareholders who have at least $1 million in RiverSource funds. If the
   investment is sold within one year after purchase, a CDSC of 1% may be
   charged.

- -  direct rollovers from Ameriprise Retirement Services, provided that the
   rollover involves a transfer of Class Y shares in this Fund to Class A shares
   in this Fund.

- -  purchases made:

   -  with dividend or capital gain distributions from this Fund or from the
      same class of another RiverSource fund,

   -  through or under a wrap fee product or other investment product sponsored
      by the distributor or another authorized broker-dealer, investment
      advisor, bank or investment professional,

   -  within a segregated separate account offered by Nationwide Life Insurance
      Company or Nationwide Life and Annuity Insurance Company,

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.26
<Page>

   -  through American Express Personal Trust Services' Asset-Based pricing
      alternative, provided by American Express Bank, FSB.

- -  shareholders whose original purchase was in a Strategist fund merged into a
   RiverSource fund in 2000.

Policies related to reducing or waiving the sales charge may be modified or
withdrawn at any time.

UNLESS YOU PROVIDE AMERIPRISE FINANCIAL SERVICES, YOUR FINANCIAL ADVISOR OR
INVESTMENT PROFESSIONAL WITH INFORMATION IN WRITING ABOUT ALL OF THE FACTORS
THAT MAY COUNT TOWARD A WAIVER OF THE SALES CHARGE, THERE CAN BE NO ASSURANCE
THAT YOU WILL RECEIVE ALL OF THE WAIVERS FOR WHICH YOU MAY BE ELIGIBLE.

You also may view this information about sales charges and breakpoints free of
charge on the Fund's website. Go to www.riversource.com/investments and click on
the hyperlink "Sales Charge Discount Information."

CLASS B AND CLASS C -- CONTINGENT DEFERRED SALES CHARGE (CDSC) ALTERNATIVE

FOR CLASS B, the CDSC is based on the sale amount and the number of years --
including the year of purchase -- between purchase and sale. The following table
shows how CDSC percentages on sales decline:

<Table>
<Caption>
IF THE SALE IS MADE DURING THE:                    THE CDSC PERCENTAGE RATE IS:*
                                                
First year                                                      5%
Second year                                                     4%
Third year                                                      4%
Fourth year                                                     3%
Fifth year                                                      2%
Sixth year                                                      1%
Seventh year                                                    0%
</Table>

*  Because of rounding in the calculation, the portion of the CDSC retained by
   the distributor may vary and the actual CDSC you pay may be more or less than
   the CDSC calculated using these percentages.

Although there is no front-end sales charge when you buy Class B shares, the
distributor pays a sales commission of 4% to financial intermediaries that sell
Class B shares. A portion of this commission may, in turn, be paid to your
financial advisor. The distributor receives any CDSC imposed when you sell your
Class B shares.

Purchases made prior to May 21, 2005 age on a calendar year basis. Purchases
made beginning May 21, 2005 age on a daily basis. For example, a purchase made
on Nov. 12, 2004 will complete its first year on Dec. 31, 2004 under calendar
year aging. However, a purchase made on Nov. 12, 2005 will complete its first
year on Nov. 11, 2006 under daily aging.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.27
<Page>

For Class B shares purchased prior to May 21, 2005, those shares will convert to
Class A shares in the ninth calendar year of ownership. For Class B shares
purchased beginning May 21, 2005, those shares will convert to Class A shares
one month after the completion of the eighth year of ownership.

FOR CLASS C, a 1% CDSC may be charged if you sell your shares within one year
after purchase. Although there is no front-end sales charge when you buy Class C
shares, the distributor pays a sales commission of 1% to financial
intermediaries that sell Class C shares. A portion of this commission may, in
turn, be paid to your financial advisor. The distributor receives any CDSC
imposed when you sell your Class C shares.

For both Class B and Class C, if the amount you sell causes the value of your
investment to fall below the cost of the shares you have purchased, the CDSC
will be based on the lower of the cost of those shares purchased or market
value. Because the CDSC is imposed only on sales that reduce your total purchase
payments, you do not have to pay a CDSC on any amount that represents
appreciation in the value of your shares, income earned by your shares, or
capital gains.

In addition, the CDSC on your sale, if any, will be based on your oldest
purchase payment. The CDSC on the next amount sold will be based on the next
oldest purchase payment.

EXAMPLE

Assume you had invested $10,000 in Class B shares and that your investment had
appreciated in value to $12,000 after 3 1/2 years, including reinvested
dividends and capital gain distributions. You could sell up to $2,000 worth of
shares without paying a CDSC ($12,000 current value less $10,000 purchase
amount). If you sold $2,500 worth of shares, the CDSC would apply to the $500
representing part of your original purchase price. The CDSC rate would be 3%
because the sale was made during the fourth year after the purchase.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.28
<Page>

WAIVERS OF THE CDSC FOR CLASS B SHARES

The CDSC will be waived on sales of shares:

- -  in the event of the shareholder's death,

- -  held in trust for an employee benefit plan, or

- -  held in IRAs or certain qualified plans if Ameriprise Trust Company is the
   custodian, such as Keogh plans, tax-sheltered custodial accounts or corporate
   pension plans, provided that the shareholder is:

   -  at least 59 1/2 years old AND

   -  taking a retirement distribution (if the sale is part of a transfer to an
      IRA or qualified plan, or a custodian-to-custodian transfer, the CDSC will
      not be waived) OR

   -  selling under an approved substantially equal periodic payment
      arrangement.

WAIVERS OF THE CDSC FOR CLASS C SHARES

The CDSC will be waived on sales of shares in the event of the shareholder's
death.

EXCHANGING/SELLING SHARES

TO SELL OR EXCHANGE SHARES HELD WITH FINANCIAL INTERMEDIARIES OTHER THAN
AMERIPRISE FINANCIAL SERVICES, PLEASE CONSULT YOUR FINANCIAL INTERMEDIARY. SEE
"TRANSACTIONS THROUGH UNAFFILIATED FINANCIAL INTERMEDIARIES" FOR MORE
INFORMATION. THE FOLLOWING SECTION EXPLAINS POLICIES OF THE RIVERSOURCE FUNDS ON
HOW YOU CAN EXCHANGE OR SELL SHARES HELD WITH AMERIPRISE FINANCIAL SERVICES.

EXCHANGES

You may exchange your Fund shares at no charge for shares of the same class of
any other publicly offered RiverSource fund. Exchanges into RiverSource
Tax-Exempt Money Market Fund may only be made from Class A shares. For complete
information on the other fund, including fees and expenses, read that fund's
prospectus carefully. Your exchange will be priced at the next NAV calculated
after your transaction request is received in good order.

MARKET TIMING IS FREQUENT OR SHORT-TERM TRADING BY CERTAIN SHAREHOLDERS INTENDED
TO PROFIT AT THE EXPENSE OF OTHER SHAREHOLDERS BY SELLING SHARES OF A FUND
SHORTLY AFTER PURCHASE. MARKET TIMING MAY ADVERSELY IMPACT A FUND'S PERFORMANCE
BY PREVENTING THE INVESTMENT MANAGER FROM FULLY INVESTING THE ASSETS OF THE
FUND, DILUTING THE VALUE OF SHARES HELD BY LONG-TERM SHAREHOLDERS, OR INCREASING
THE FUND'S TRANSACTION COSTS. SEE "VALUING FUND SHARES" FOR A DISCUSSION OF THE
FUND'S POLICY ON FAIR VALUE PRICING, WHICH IS INTENDED, IN PART, TO REDUCE THE
FREQUENCY AND EFFECT OF MARKET TIMING.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.29
<Page>

THE FUND'S BOARD HAS ADOPTED A POLICY THAT IS DESIGNED TO DETECT AND DETER
MARKET TIMING. THE FUND SEEKS TO ENFORCE THIS POLICY AS FOLLOWS:

- -  The Fund tries to distinguish market timing from trading that it believes is
   not harmful, such as periodic rebalancing for purposes of asset allocation or
   dollar cost averaging. Under the Fund's procedures, there is no set number of
   transactions in the Fund that constitutes market timing. Even one purchase
   and subsequent sale by related accounts may be market timing. Generally, the
   Fund seeks to restrict the exchange privilege of an investor who makes more
   than three exchanges into or out of the Fund in any 90-day period. Accounts
   held by a retirement plan or an institution for the benefit of its
   participants or clients, which typically engage in daily transactions, are
   not subject to this limit. The Fund seeks the assistance of financial
   intermediaries in applying similar restrictions on the sub-accounts of their
   participants or clients.

- -  If an investor's trading activity is determined to be market timing or
   otherwise harmful to existing shareholders, the Fund reserves the right to
   modify or discontinue the investor's exchange privilege or reject the
   investor's purchases or exchanges, including purchases or exchanges accepted
   by a financial intermediary. The Fund may treat accounts it believes to be
   under common control as a single account for these purposes, although it may
   not be able to identify all such accounts.

- -  Although the Fund does not knowingly permit market timing, it cannot
   guarantee that it will be able to identify and restrict all short-term
   trading activity. The Fund receives purchase and sale orders through
   financial intermediaries where market timing activity may not always be
   successfully detected.

Other exchange policies:

- -  Exchanges must be made into the same class of shares of the new fund.

- -  If your exchange creates a new account, it must satisfy the minimum
   investment amount for new purchases.

- -  Once we receive your exchange request, you cannot cancel it.

- -  Shares of the new fund may not be used on the same day for another exchange.

- -  If your shares are pledged as collateral, the exchange will be delayed until
   written approval is received from the secured party.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.30
<Page>

SELLING SHARES

You may sell your shares at any time. The payment will be mailed within seven
days after your request is received in good order.

When you sell shares, the amount you receive may be more or less than the amount
you invested. Your sale price will be the next NAV calculated after your request
is received in good order, minus any applicable CDSC.

REPURCHASES. You can change your mind after requesting a sale and use all or
part of the proceeds to purchase new shares in the same account from which you
sold. If you reinvest in Class A, you will purchase the new shares at NAV rather
than the offering price on the date of a new purchase. If you reinvest in Class
B or Class C, any CDSC you paid on the amount you are reinvesting also will be
reinvested. To take advantage of this waiver, you must send a written request
within 90 days of the date your sale request was processed and include your
account number. This privilege may be limited or withdrawn at any time and use
of this option may have tax consequences.

The Fund reserves the right to redeem in kind.

For more details and a description of other sales policies, please see the SAI.

If you decide to sell your shares within 30 days of a telephoned-in address
change, a written request is required.

IMPORTANT: Payments sent by a bank authorization, check or money order that are
not guaranteed may take up to ten days to clear. This may cause your scheduled
arrangement or unscheduled request to fail to process if the requested amount
includes unguaranteed funds.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.31
<Page>

WAYS TO REQUEST AN EXCHANGE OR SALE OF SHARES

BY REGULAR OR EXPRESS MAIL

AMERIPRISE FINANCIAL SERVICES
70200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474

Include in your letter:

- -  your account number

- -  the name of the fund(s)

- -  the class of shares to be exchanged or sold

- -  your Social Security number or Employer Identification number

- -  the dollar amount or number of shares you want to exchange or sell

- -  specific instructions regarding delivery or exchange destination

- -  signature(s) of registered account owner(s) (All signatures may be required.
   Contact your financial advisor or Ameriprise Financial Services for more
   information.)

- -  any paper certificates of shares you hold

Payment will be mailed to the address of record and made payable to the names
listed on the account, unless your request specifies differently and is signed
by all owners.

The express mail delivery charges you pay will vary depending on domestic or
international delivery instructions.

BY TELEPHONE

(800) 297-7378 for brokerage accounts

(800) 967-4377 for wrap accounts

(800) 862-7919 for non-brokerage/wrap accounts

- -  Reasonable procedures will be used to confirm authenticity of telephone
   exchange or sale requests.

- -  Telephone exchange and sale privileges automatically apply to all accounts
   except custodial, corporate or qualified retirement accounts. You may request
   that these privileges NOT apply by writing the distributor. Each registered
   owner must sign the request.

- -  Acting on your instructions, your financial advisor may conduct telephone
   transactions on your behalf.

- -  Telephone privileges may be modified or discontinued at any time.

MINIMUM SALE AMOUNT:     $100

MAXIMUM SALE AMOUNT:     $100,000

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.32
<Page>

BY WIRE

You can wire money from your account to your bank account. Contact your
financial advisor or Ameriprise Financial Services at the above numbers for
additional information.

- -  Minimum amount: $1,000

- -  Pre-authorization is required.

- -  A service fee may be charged against your account for each wire sent.

BY SCHEDULED PAYOUT PLAN

- -  Minimum payment: $100*

- -  Contact your financial advisor or the Ameriprise Financial Services to set up
   regular payments.

- -  Purchasing new shares while under a payout plan may be disadvantageous
   because of the sales charges.

* Minimum is $50 in a non-brokerage/wrap account.

ELECTRONIC TRANSACTIONS

The ability to initiate transactions via the internet may be unavailable or
delayed at certain times (for example, during periods of unusual market
activity). The Fund and the distributor are not responsible for any losses
associated with unexecuted transactions. In addition, the Fund and the
distributor are not responsible for any losses resulting from unauthorized
transactions if reasonable security measures are followed to validate the
investor's identity. The Fund may modify or discontinue electronic privileges at
any time for any shareholder without prior notice as deemed necessary and in the
best interests of the Fund.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.33
<Page>

DISTRIBUTIONS AND TAXES

As a shareholder you are entitled to your share of the Fund's net income and net
gains. The Fund distributes dividends and capital gains to qualify as a
regulated investment company and to avoid paying corporate income and excise
taxes.

DIVIDENDS AND CAPITAL GAIN DISTRIBUTIONS

The Fund's net investment income is distributed to you as DIVIDENDS. Dividends
may be composed of qualifying dividend income, which is eligible for
preferential tax rates under current tax law, as well as other ordinary dividend
income, which may include non-qualifying dividends, interest income and
short-term capital gains. Capital gains are realized when a security is sold for
a higher price than was paid for it. Each realized capital gain or loss is
long-term or short-term depending on the length of time the Fund held the
security. Realized capital gains and losses offset each other. The Fund offsets
any net realized capital gains by any available capital loss carryovers. Net
short-term capital gains are included in net investment income. Net realized
long-term capital gains, if any, are distributed by the end of the calendar year
as CAPITAL GAIN DISTRIBUTIONS.

REINVESTMENTS

Dividends and capital gain distributions are automatically reinvested in
additional shares in the same class of the Fund, unless:

- -  you request distributions in cash, or

- -  you direct the Fund to invest your distributions in the same class of any
   publicly offered RiverSource fund for which you have previously opened an
   account.

We reinvest the distributions for you at the next calculated NAV after the
distribution is paid.

If you choose cash distributions, you will receive cash only for distributions
declared after your request has been processed.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.34
<Page>

TAXES

Distributions are subject to federal income tax and may be subject to state and
local taxes in the year they are declared. You must report distributions on your
tax returns, even if they are reinvested in additional shares.

If you buy shares shortly before the record date of a distribution, you may pay
taxes on money earned by the Fund before you were a shareholder. You will pay
the full pre-distribution price for the shares, then receive a portion of your
investment back as a distribution, which may be taxable.

For tax purposes, an exchange is considered a sale and purchase, and may result
in a gain or loss. A sale is a taxable transaction. If you sell shares for less
than their cost, the difference is a capital loss. If you sell shares for more
than their cost, the difference is a capital gain. Your gain may be short term
(for shares held for one year or less) or long term (for shares held for more
than one year).

You may not create a tax loss, based on paying a sales charge, by exchanging
shares within 91 days of purchase. If you buy Class A shares and within 91 days
exchange into another fund, you may not include the sales charge in your
calculation of tax gain or loss on the sale of the first fund you purchased. The
sales charge may be included in the calculation of your tax gain or loss on a
subsequent sale of the second fund you purchased. For more information, see the
SAI.

Selling shares held in an IRA or qualified retirement account may subject you to
federal taxes, penalties and reporting requirements. Please consult your tax
advisor.

IMPORTANT: This information is a brief and selective summary of some of the tax
rules that apply to this Fund. Because tax matters are highly individual and
complex, you should consult a qualified tax advisor.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.35
<Page>

FINANCIAL HIGHLIGHTS

THE FINANCIAL HIGHLIGHTS TABLES ARE INTENDED TO HELP YOU UNDERSTAND THE FUND'S
FINANCIAL PERFORMANCE. CERTAIN INFORMATION REFLECTS FINANCIAL RESULTS FOR A
SINGLE FUND SHARE. THE TOTAL RETURNS IN THE TABLES REPRESENT THE RATE THAT AN
INVESTOR WOULD HAVE EARNED OR LOST ON AN INVESTMENT IN THE FUND (ASSUMING
REINVESTMENT OF ALL DIVIDENDS AND DISTRIBUTIONS). THIS INFORMATION HAS BEEN
AUDITED BY KPMG LLP, WHOSE REPORT, ALONG WITH THE FUND'S FINANCIAL STATEMENTS,
IS INCLUDED IN THE ANNUAL REPORT WHICH, IF NOT INCLUDED WITH THIS PROSPECTUS, IS
AVAILABLE UPON REQUEST.

CLASS A

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                                           2005         2004         2003(b)
                                                                                        
PER SHARE INCOME AND CAPITAL CHANGES(a)

Net asset value, beginning of period                                  $ 5.95       $ 5.44       $ 5.00
- ------------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                             .04          .02          .01
Net gains (losses) (both realized and unrealized)                        .90          .63          .43
- ------------------------------------------------------------------------------------------------------------
Total from investment operations                                         .94          .65          .44
- ------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Dividends from net investment income                                    (.03)        (.02)          --
Distributions from realized gains                                       (.16)        (.12)          --
- ------------------------------------------------------------------------------------------------------------
Total distributions                                                     (.19)        (.14)          --
- ------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                        $ 6.70       $ 5.95       $ 5.44
- ------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                               $   28       $   13       $    8
- ------------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)                    1.25%        1.13%        1.22%(e)
- ------------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss) to average daily net assets        .84%         .65%         .81%(e)
- ------------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term securities)                 64%          64%          17%
- ------------------------------------------------------------------------------------------------------------
Total return(f)                                                        15.95%       11.99%        8.80%(g)
- ------------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.

(b)  For the period from April 24, 2003 (when shares became publicly available)
     to July 31, 2003.

(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.

(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class A
     would have been 1.35%, 1.91% and 7.39% for the periods ended July 31, 2005,
     2004 and 2003, respectively.

(e)  Adjusted to an annual basis.

(f)  Total return does not reflect payment of a sales charge.

(g)  Not annualized.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.36
<Page>

CLASS B

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                                           2005         2004         2003(b)
                                                                                        
PER SHARE INCOME AND CAPITAL CHANGES(a)

Net asset value, beginning of period                                  $ 5.90       $ 5.43        $5.00
- ------------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                             .02         (.02)          --
Net gains (losses) (both realized and unrealized)                        .86          .61          .43
- ------------------------------------------------------------------------------------------------------------
Total from investment operations                                         .88          .59          .43
- ------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Distributions from realized gains                                       (.16)        (.12)          --
- ------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                        $ 6.62       $ 5.90        $5.43
- ------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                               $    9       $    3        $   1
- ------------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)                    2.04%        1.95%        2.01%(e)
- ------------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss) to average daily net assets        .06%        (.16%)       (.08%)(e)
- ------------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term securities)                 64%          64%          17%
- ------------------------------------------------------------------------------------------------------------
Total return(f)                                                        15.03%       10.95%        8.60%(g)
- ------------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.

(b)  For the period from April 24, 2003 (when shares became publicly available)
     to July 31, 2003.

(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.

(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class B
     would have been 2.13%, 2.73% and 8.18% for the periods ended July 31, 2005,
     2004 and 2003, respectively.

(e)  Adjusted to an annual basis.

(f)  Total return does not reflect payment of a sales charge.

(g)  Not annualized.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.37
<Page>

CLASS C

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                                           2005         2004         2003(b)
                                                                                        
PER SHARE INCOME AND CAPITAL CHANGES(a)

Net asset value, beginning of period                                  $ 5.90       $ 5.43        $5.00
- ------------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                             .01         (.02)          --
Net gains (losses) (both realized and unrealized)                        .87          .61          .43
- ------------------------------------------------------------------------------------------------------------
Total from investment operations                                         .88          .59          .43
- ------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Distributions from realized gains                                       (.16)        (.12)          --
- ------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                        $ 6.62       $ 5.90        $5.43
- ------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                               $   --       $   --        $  --
- ------------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)                    2.06%        1.95%        2.01%(e)
- ------------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss) to average daily net assets        .02%        (.17%)       (.05%)(e)
- ------------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term securities)                 64%          64%          17%
- ------------------------------------------------------------------------------------------------------------
Total return(f)                                                        15.03%       10.96%        8.60%(g)
- ------------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.

(b)  For the period from April 24, 2003 (when shares became publicly available)
     to July 31, 2003.

(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.

(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class C
     would have been 2.13%, 2.73% and 8.20% for the periods ended July 31, 2005,
     2004 and 2003, respectively.

(e)  Adjusted to an annual basis.

(f)  Total return does not reflect payment of a sales charge.

(g)  Not annualized.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.38
<Page>

CLASS Y

<Table>
<Caption>
FISCAL PERIOD ENDED JULY 31,                                           2005         2004         2003(b)
                                                                                        
PER SHARE INCOME AND CAPITAL CHANGES(a)

Net asset value, beginning of period                                  $ 5.95       $ 5.45        $5.00
- ------------------------------------------------------------------------------------------------------------
INCOME FROM INVESTMENT OPERATIONS:
Net investment income (loss)                                             .05          .03          .01
Net gains (losses) (both realized and unrealized)                        .91          .61          .44
- ------------------------------------------------------------------------------------------------------------
Total from investment operations                                         .96          .64          .45
- ------------------------------------------------------------------------------------------------------------
LESS DISTRIBUTIONS:
Dividends from net investment income                                    (.04)        (.02)          --
Distributions from realized gains                                       (.16)        (.12)          --
- ------------------------------------------------------------------------------------------------------------
Total distributions                                                     (.20)        (.14)          --
- ------------------------------------------------------------------------------------------------------------
Net asset value, end of period                                        $ 6.71       $ 5.95        $5.45
- ------------------------------------------------------------------------------------------------------------

RATIOS/SUPPLEMENTAL DATA

Net assets, end of period (in millions)                               $   --       $   --        $  --
- ------------------------------------------------------------------------------------------------------------
Ratio of expenses to average daily net assets(c),(d)                    1.06%         .98%        1.01%(e)
- ------------------------------------------------------------------------------------------------------------
Ratio of net investment income (loss) to average daily net assets       1.03%         .78%         .90%(e)
- ------------------------------------------------------------------------------------------------------------
Portfolio turnover rate (excluding short-term securities)                 64%          64%          17%
- ------------------------------------------------------------------------------------------------------------
Total return(f)                                                        16.25%       11.87%        9.00%(g)
- ------------------------------------------------------------------------------------------------------------
</Table>

(a)  For a share outstanding throughout the period. Rounded to the nearest cent.

(b)  For the period from April 24, 2003 (when shares became publicly available)
     to July 31, 2003.

(c)  Expense ratio is based on total expenses of the Fund before reduction of
     earnings credits on cash balances.

(d)  Ameriprise Financial waived/reimbursed the Fund for certain expenses. Had
     Ameriprise Financial not done so, the annual ratios of expenses for Class Y
     would have been 1.18%, 1.76% and 7.20% for the periods ended July 31, 2005,
     2004 and 2003, respectively.

(e)  Adjusted to an annual basis.

(f)  Total return does not reflect payment of a sales charge.

(g)  Not annualized.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.39
<Page>

This Fund, along with the other RiverSource funds, is distributed by Ameriprise
Financial Services, Inc. and can be purchased from Ameriprise Financial Services
or from a limited number of other authorized financial intermediaries. The Fund
can be found under the "RiverSource" banner in most mutual fund quotations.

Additional information about the Fund and its investments is available in the
Fund's SAI, and annual and semiannual reports to shareholders. In the Fund's
annual report, you will find a discussion of market conditions and investment
strategies that significantly affected the Fund's performance during its most
recent fiscal year. The SAI is incorporated by reference in this prospectus. For
a free copy of the SAI, the annual report, or the semiannual report, or to
request other information about the Fund or make a shareholder inquiry, contact
your financial advisor, investment professional or Ameriprise Financial
Services.

Ameriprise Financial Services
70100 Ameriprise Financial Center
Minneapolis, MN 55474
(800) 862-7919
TTY: (800) 846-4852

RiverSource Investments Website address:
riversource.com/investments

You may review and copy information about the Fund, including the SAI, at the
Securities and Exchange Commission's (Commission) Public Reference Room in
Washington, D.C. (for information about the public reference room call
1-202-942-8090). Reports and other information about the Fund are available on
the EDGAR Database on the Commission's Internet site at www.sec.gov. Copies of
this information may be obtained, after paying a duplicating fee, by electronic
request at the following E-mail address: publicinfo@sec.gov, or by writing to
the Public Reference Section of the Commission, Washington, D.C. 20549-0102.

Investment Company Act File #811-2111

TICKER SYMBOL

CLASS A: AQEAX    CLASS B: --
CLASS C: --       CLASS I: ALEIX
CLASS Y: --


[RIVERSOURCE(SM) INVESTMENTS LOGO]


RIVERSOURCE INVESTMENTS
200 AMERIPRISE FINANCIAL CENTER
MINNEAPOLIS, MN 55474

                                                             S-6263-99 E (10/05)

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                      D.40



EXHIBIT E

BOARD EFFECTIVENESS COMMITTEE CHARTER

RESOLVED, That the Board Effectiveness Committee be composed of the independent
members appointed annually by the Board and the Chair of the Board;

RESOLVED, That one member shall be appointed to Chair the Committee and the
Committee shall meet upon call of the Chair;

RESOLVED, That the Committee will make recommendations to the Board on:

- -    The responsibilities and duties of the Board;

- -    The criteria to be used to determine the size and structure of the Boards
     and the background and characteristics of independent Board members;

- -    The persons to serve as Board members based on approved criteria whenever
     necessary to fill a vacancy or in conjunction with a regular meeting of
     shareholders in which nominees are required to be submitted for a vote of
     shareholders;

- -    The annual evaluation of the Board's performance and the attendance of
     members; and

- -    The compensation to be paid to independent members; and further

RESOLVED, That the Committee shall be assigned such further areas of
responsibility as appropriate to assist the Board in meeting its fiduciary
duties in an efficient and effective manner.

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       E.1
<Page>

EXHIBIT F


THIS CHARTER IS SCHEDULED TO BE REVIEWED AT AN UPCOMING MEETING OF THE BOARD. AT
THAT TIME, THE BOARD IS EXPECTED TO UPDATE THE CHARTER, INCLUDING CHANGING
REFERENCES FROM AMERICAN EXPRESS FINANCIAL CORPORATION AND ITS SUBSIDIARIES TO
AMERIPRISE FINANCIAL AND ITS SUBSIDIARIES. IN ADDITION, REFERENCES TO AMERICAN
EXPRESS COMPANY WILL BE ELIMINATED.

JOINT AUDIT COMMITTEE CHARTER


MEMBERSHIP AND QUALIFICATIONS

The Joint Audit Committee shall consist of at least three members appointed by
the Board. The Board may replace members of the Committee for any reason.

No member shall be an "interested person" as that term is defined in Section
2(a)(19) of the Investment Company Act, nor shall any member receive any
compensations from the Fund except compensations for service as a member of the
Board and Board committees.

At least one member of the Committee shall be an "audit committee financial
expert." An "audit committee financial expert" means a person who has the
following attributes:

- -  An understanding of generally accepted accounting principles and financial
   statements;

- -  The ability to assess the general application of such principles in
   connection with the accounting for estimates, accruals, and reserves;

- -  Experience preparing, auditing, analyzing, or evaluating financial statements
   that present a breadth and level of complexity of accounting issues that are
   generally comparable to the breadth and complexity of issues that can
   reasonably be expected to be raised by the registrant's financial statements,
   or experience actively supervising one or more persons engaged in such
   activities;

- -  An understanding of internal controls and procedures for financial reporting;
   and

- -  An understanding of audit committee functions.

A person shall have acquired such attributes through:

- -  Education and experience as a principal financial officer, principal
   accounting officer, controller, public accountant, or auditor or experience
   in one or more positions that involve the performance of similar functions;

- -  Experience actively supervising a principal financial officer, principal
   accounting officer, controller, public accountant, auditor, or person
   performing similar functions;

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.1
<Page>

- -  Experience overseeing or assessing the performance of companies or public
   accountants with respect to the preparation, auditing, or evaluation of
   financial statements; or

- -  Other relevant experience.

The Board shall determine "audit committee financial experts" annually.

PURPOSES OF THE COMMITTEE

The Committee is to assist independent members of the Boards in fulfilling their
oversight responsibilities to the shareholders, potential shareholders and
investment community relating to the reliability of financial reporting, the
effectiveness and efficiency of operations, the work done by external auditors,
the adequacy of internal controls, and the compliance with applicable laws and
regulations by:

- -  Overseeing the accounting and financial reporting processes of the Fund and
   its internal control over financial reporting and, as the Committee deems
   appropriate, to inquire into the internal control over financial reporting of
   certain third-party service providers;

- -  Overseeing, or, as appropriate, assisting Board oversight of, the quality and
   integrity of the Fund's financial statements and the independent audit
   thereof;

- -  Overseeing, or, as appropriate, assisting Board oversight of, the Fund's
   compliance with legal and regulatory requirements that relate to the Fund's
   accounting and financial reporting, internal control over financial reporting
   and independent audits; and

- -  Approving prior to appointment the engagement of the Fund's independent
   auditor (Auditor) and, in connection therewith, to review and evaluate the
   qualifications, independence and performance of the Fund's Auditor.

The Auditor for the Fund shall report directly to the Committee.

DUTIES AND POWERS

To carry out its purposes, the Committee shall have the following duties and
powers:

- -  Recommend the Auditor that the Committee believes is qualified to examine and
   report on the financial statements to the independent members of the Board
   within 90 days before or after the fiscal year end of the Fund;

- -  Meet with representatives of the Auditor to:

   -  Review and evaluate matters potentially affecting its independence and
      capabilities by:

      -  Approving prior to appointment the professional services the Auditor
         requests to perform for American Express Financial Corporation and any
         of its subsidiaries that provide services to the Fund;




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.2
<Page>

      -  Considering the controls applied by the Auditor and measures taken by
         American Express Financial Corporation to assure that all items
         requiring pre-approval are identified and referred to the Committee in
         a timely fashion; and

      -  Evaluating the auditor's independence by receiving a report on business
         relationships at each meeting setting forth the work it has been
         engaged to do for American Express Company or its subsidiaries.

   -  Consider the scope of the annual audit and any special audits and review
      and approve the estimated fees to be charged;

   -  Consider the information and comments from the Auditor with respect to the
      Fund's accounting and financial reporting policies, procedures and
      internal controls over financial reporting; the responses to the comments
      by American Express Financial Corporation; and possible improvements that
      can be made in the quality of the Fund's accounting and financial
      reporting;

- -  Meet with representatives of American Express Enterprise Risk and Assurance
   Services to:

   -  Discuss its responsibility to the Fund with respect to its review of
      operations of American Express Financial Corporation and affiliates to the
      extent they pertain to the registered investment companies;

   -  Consider its authority, including the support it receives from American
      Express Financial Corporation's senior management and American Express
      Company's General Auditor;

   -  Discuss whether it complies with the Institute of Internal Auditors'
      "Standard for the Professional Practice of Internal Auditing;"

   -  Review its budget, staffing and proposed audit plans each year; and

   -  Review reports issued by American Express Enterprise Risk and Assurance
      Services that pertain to American Express Financial Corporation's
      operations related to the registered investment companies.

- -  Encourage open lines of communications among the Committee, the Auditor, and
   American Express Enterprise Risk and Assurance Services to:

   -  Consider information and comments from the Auditor with respect to the
      Fund's financial statements, including any adjustments to such statements
      recommended by the Auditor and to review the opinion of the Auditor;

   -  Resolve any disagreements between American Express Financial Corporation
      and the Auditor;

   -  Review, in connection with required certifications of Form N-CSR, any
      significant deficiencies in the design or operations of internal control
      over financial reporting or material weaknesses therein and any reported
      evidence of fraud involving any person who has a significant role in the

                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.3
<Page>

      Fund's internal control over financial reporting;

   -  Establish procedures for the receipt, retention and treatment of
      complaints received by the Fund relating to accounting, internal
      accounting controls, or auditing matters, and the confidential, anonymous
      submission by employees of American Express Financial Corporation of
      concerns about accounting or auditing matters, and address reports from
      attorneys or auditors of possible violations of federal or state laws or
      fiduciary duty;

   -  Investigate or initiate an investigation of reports of improprieties or
      suspected improprieties in connection with the Fund's accounting or
      financial reporting;

- -  Consider the adequacy and effectiveness of internal controls, including the
   controls over computerized information systems, through discussions with the
   Auditor, American Express Enterprise Risk and Assurance Services and
   appropriate American Express Financial Corporation managers who provide
   reports to the Committee and elicit their recommendations for improving or
   identifying particular areas where new or more detailed controls or
   procedures are desirable giving particular emphasis to the adequacy of
   internal controls for exposing any payments, transactions, or procedures that
   might be deemed illegal or otherwise improper;

- -  Request to be informed about all new or changed accounting principles and
   disclosure practices on a timely basis and inquire regarding the judgment and
   reasoning regarding the appropriateness, not just the acceptability, of the
   changes or proposed changes;

- -  Report the work of the Committee to the Board as frequently as the Committee
   deems appropriate;

- -  Review and assess the adequacy of the Committee's charter at least annually
   and recommend any changes to the Board;

- -  Meet at least once a year in a private meeting with each of the three
   following groups: the Auditor, the American Express Financial Corporation's
   management personnel responsible for the financial statements and
   recordkeeping of the Fund, the Senior Vice President - Enterprise Risk and
   Assurance Services for American Express Financial Corporation, and the
   General Auditor and Chief Operational Risk Officer for American Express
   Company;

- -  Consider such other matters as any Board or Committee deems appropriate and
   perform such additional tasks as directed by resolution of any Board;

- -  Conduct its own investigations into issues related to its responsibilities
   and is authorized to employ such professional and technical assistance as it
   deems necessary.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.4
<Page>

The Committee shall have the resources and authority appropriate to discharge
its responsibilities, including appropriate funding, as determined by the
Committee, for payment of compensation to the Auditor for the purpose of
conducting the audit and rendering their audit report, the authority to retain
and compensate special counsel and other experts or consultants as the Committee
deems necessary, and the authority to obtain specialized training for Committee
members, at the expense of the Fund, as appropriate.


The Committee may delegate any portion of its authority, including the authority
to grant pre-approvals of audit and permitted non-audit services to one or more
members. Any decisions of the member to grant pre-approvals shall be presented
to the Committee at its next regularly scheduled meeting.


ROLE AND RESPONSIBILITIES

The function of the Committee is oversight; it is American Express Financial
Corporation's responsibility to maintain appropriate systems for accounting and
internal control over financial reporting, and the Auditor's responsibility to
plan and carry out a proper audit. Specifically, American Express Financial
Corporation is responsible for: (1) the preparation, presentation and integrity
of the Fund's financial statements; (2) the maintenance of appropriate
accounting and financial reporting principles and policies; and (3) the
maintenance of internal control over financial reporting and other procedures
designed to assure compliance with accounting standards and related laws and
regulations. The Auditor is responsible for planning and carrying out an audit
consistent with applicable legal and professional standards and the terms of
their engagement letter. Nothing in the Charter shall be construed to reduce the
responsibilities or liabilities of the Fund's service providers, including the
Auditor.

Although the Committee is expected to take a detached and questioning approach
to the matters that come before it, the review of a Fund's financial statements
by the Committee is not an audit, nor does the Committee's review substitute for
the responsibilities of American Express Financial Corporation's for preparing,
or the Auditor for auditing, the financial statements. Members of the Committee
are not employees of the Fund and, in serving on this Committee, are not, and do
not hold themselves out to be, acting as accountants or auditors. As such, it is
not the duty or responsibility of the Committee or its members to conduct "field
work" or other types of auditing or accounting reviews or procedures.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.5
<Page>

In discharging their duties, the members of the Committee are entitled to rely
on information, opinions, reports, or statements, including financial statements
and other financial data, if prepared or presented by: (1) one or more officers
of the Fund whom the director reasonably believes to be reliable and competent
in the matters presented; (2) legal counsel, public accountants, or other
persons as to matters the director reasonably believes are within the person's
professional or expert competence; or (3) a Board committee of which the
director is not a member.


OPERATIONS


The Board shall adopt and approve this Charter and may amend it on the Board's
own motion. The Committee shall review this Charter at least annually and
recommend to the full Board any changes the Committee deems appropriate.

The Committee may select one of its members to be the chair and may select a
vice chair. A majority of the members of the Committee shall constitute a quorum
for the transaction of business at any meeting of the Committee. The action of a
majority of the members of the Audit Committee present at a meeting at which a
quorum is present shall be the action of the Committee.

The Committee shall meet on a regular basis and at least four times annually and
is empowered to hold special meetings as circumstances require. The Chairperson
or a majority of the members shall be authorized to call a meeting of the
Committee or meetings may be fixed in advance by the Committee.

The agenda shall be prepared under the direction and control of the Chairperson.

The Committee shall ordinarily meet in person; however, members may attend
telephonically, and the Committee may act by written consent, to the extent
permitted by law and by the Fund's bylaws.

The Committee shall have the authority to meet privately and to admit
non-members individually. The Committee may also request to meet with internal
legal counsel and compliance personnel of American Express Financial Corporation
and with entities that provide significant accounting or administrative services
to the Fund to discuss matters relating to the Fund's accounting and compliance
as well as other Fund-related matters.

The Committee shall prepare and retain minutes of its meetings and appropriate
documentation of decisions made outside of meetings by delegated authority.

The Committee shall evaluate its performance at least annually.




                    RIVERSOURCE STOCK FUND -- PROXY STATEMENT
                                       F.6
<Page>

                                                                S-6389 A (12/05)




                                             
                                                ezVote(SM)Consolidated Proxy Card
        RIVERSOURCE(SM) FUNDS
formerly known as American Express(R) Funds     This form is your EzVote Consolidated Proxy.
            P.O. BOX 9132                       It reflects all of your accounts registered to
        HINGHAM, MA 02043-9132                  the same Social Security or Tax I.D. number at
                                                this address. By voting and signing the
                                                Consolidated Proxy Card, you are voting all of
                                                these accounts in the same manner as indicated
                                                on the reverse side of the form.


999 999 999 999 99 <-
                                                           RIVERSOURCE(SM) FUNDS
                                      (formerly known as AMERICAN EXPRESS FUNDS)
AXP STOCK SERIES, INC.             PROXY FOR THE REGULAR MEETING OF SHAREHOLDERS
RIVERSOURCE STOCK FUND                                         FEBRUARY 15, 2006

Your fund will hold a shareholders' meeting in the Galaxy Room on the 50th floor
of the IDS Center, 80 South Eight Street, Minneapolis, MN, at 10:00 a.m. on
February 15, 2006. You are entitled to vote at the meeting if you were a
shareholder on December 16, 2005. Please read the proxy statement and vote
immediately by mail, telephone or internet, even if you plan to attend the
meeting. Just follow the instructions on this proxy card. The Board of Directors
recommends that you vote FOR each proposal.

The undersigned hereby appoints Arne H. Carlson and Leslie L. Ogg or either of
them, as proxies, with full power of substitution, to represent and to vote all
of the shares of the undersigned at the regular meeting to be held on February
15, 2006, and any adjournment thereof.

                                         Date __________________


                              Signature(s) (Joint owners)    (Sign in the Box)

                              Note: Please sign this proxy exactly as your
                              name (or names) appears on this card. Joint owners
                              should each sign personally. Trustees and other
                              fiduciaries should indicate the capacity in
                              which they sign, and where more than one name
                              appears, a majority must sign. If a corporation,
                              this signature should be that of an authorized
                              officer who should state his or her title.


                                                              AMPF Stock EZ - DH

IF VOTING THE CONSOLIDATED PROXY CARD DO NOT SIGN, DATE OR RETURN THE INDIVIDUAL
BALLOTS




                                              THREE EASY WAYS TO VOTE

        To vote by Telephone                       To vote by Internet                        To vote by Mail
                                                                               
1) Read the proxy statement and have the   1) Read the proxy statement and have      1) Read the Proxy Statement.
   Consolidated Proxy Card at hand.           Consolidated Proxy Card at hand.       2) Check the appropriate boxes on the
2) Call 1-888-221-0697.                    2) Go to www.proxyweb.com                    reverse side.
3) Follow the recorded instructions.       3) Follow the on-line directions.         3) Sign and date the proxy card.
                                                                                     4) Return the proxy card in the envelope
                                                                                        provided.


          IF YOU VOTE BY TELEPHONE OR INTERNET, DO NOT MAIL YOUR CARD.





                                                                 INDIVIDUAL BALLOTS
                                                              
                                                                 On the reverse side of this form (and on accompanying pages,
                                                                 if necessary) you will find individual ballots, one for each of
                                                                 your accounts. If you would wish to vote each of these accounts
                                                                 separately, sign in the signature box below, mark each individual
                                                                 ballot to indicate your vote, detach the form at the perforation
                                                                 above and return the individual ballots portion only.

                                                                 NOTE: If you choose to vote each account separately, do
                                                                 not return the Consolidated Proxy Card above.


                                                                 Date _____________________________


                                                                 -------------------------------------------------------
                                                                 Signature(s) (Joint owners)          (Sign in the Box)
                                                                 Note: Please sign this proxy exactly as your
                                                                 name or names appears on this card. Joint owners
                                                                 should each sign personally. Trustees and other
                                                                 fiduciaries should indicate the capacity in
                                                                 which they sign, and where more than one name
                                                                 appears, a majority must sign. If a corporation,
                                                                 this signature should be that of an authorized
                                                                 officer who should state his or her title.

                                                                                            AMPF Stock EZ - DH


                                ezVote(SM)Consolidated Proxy Card


                                Please fill in box(es) as shown using black or
                                blue ink or number 2 pencil. [X]

                                PLEASE DO NOT USE FINE POINT PENS.




                                                                                                     
To vote FOR on all Proposals, MARK this box (no other vote is necessary)                                [ ]

                                                                                                        FOR  AGAINST  ABSTAIN
1. Approve the Agreement and Plan of Reorganization.                                                    [ ]    [ ]      [ ]   1.
2. ELECTION OF BOARD MEMBERS.
                                                                                                        FOR  WITHHOLD  FOR ALL
                                                                                                        ALL     ALL     EXCEPT
   (01) Kathleen Blatz         (05) Jeffrey Laikind             (09) Alan K. Simpson
   (02) Arne H. Carlson        (06) Stephen R. Lewis, Jr.       (10) Alison Taunton-Rigby
   (03) Patricia M. Flynn      (07) Catherine James Paglia      (11) William F. Truscott                [ ]    [ ]      [ ]   2.
   (04) Anne P. Jones          (08) Vikki L. Pryor

(INSTRUCTIONS: To withhold authority to vote for any individual nominee, mark
the "FOR ALL EXCEPT" box and write the nominee's number on the line below.)

                                                                                                        FOR  AGAINST  ABSTAIN
3. Approve an Amendment to the Articles of
   Incorporation.                                                                                       [ ]    [ ]      [ ]   3.

4. Approve an Investment Management Services Agreement with RiverSource Investments, LLC.               [ ]    [ ]      [ ]   4.

                                    PLEASE SIGN AND DATE ON THE REVERSE SIDE.



                                                              AMPF Stock EZ - DH

                IF VOTING THE CONSOLIDATED PROXY CARD DO NOT SIGN, DATE OR RETURN THE INDIVIDUAL BALLOTS

                               INDIVIDUAL BALLOTS

NOTE: IF YOU HAVE USED THE CONSOLIDATED BALLOT ABOVE, DO NOT VOTE THE INDIVIDUAL BALLOTS BELOW.




     000 0000000000 000 0                                              000 0000000000 000 0
     JOHN Q. PUBLIC                                                    JOHN Q. PUBLIC
     123 MAIN STREET                                                   123 MAIN STREET
     ANYTOWN, MA 02030          999 999 999 999 99                     ANYTOWN, MA 02030          999 999 999 999 99
     RIVERSOURCE STOCK FUND                                            RIVERSOURCE STOCK FUND

                               FOR       AGAINST     ABSTAIN                                          FOR       AGAINST     ABSTAIN
                                                                    
1. Approve the Agreement                                               1. Approve the Agreement
   and Plan of                                                            and Plan of
   Reorganization.             [ ]         [ ]         [ ]                Reorganization.             [ ]         [ ]         [ ]

2. ELECTION OF BOARD                                                   2. ELECTION OF BOARD
   MEMBERS.                    FOR       WITHHOLD    FOR ALL              MEMBERS.                    FOR       WITHHOLD    FOR ALL
(See Nominee list on           ALL         ALL       EXCEPT*           (See Nominee list on           ALL         ALL       EXCEPT*
consolidated ballot.)                                                  consolidated ballot.)

*EXCEPT____________________    [ ]         [ ]         [ ]             *EXCEPT____________________    [ ]         [ ]         [ ]

                               FOR       AGAINST     ABSTAIN                                          FOR       AGAINST     ABSTAIN
3. Amend the Articles of                                               3. Amend the Articles of
   Incorporation.              [ ]         [ ]         [ ]                Incorporation.              [ ]         [ ]         [ ]

4. Approve Investment                                                  4. Approve Investment
   Management Services                                                    Management Services
   Agreement.                  [ ]         [ ]         [ ]                Agreement.                  [ ]         [ ]         [ ]


                                                              AMPF Stock EZ - DH



AXP(R) STOCK SERIES, INC.
   - RiverSource(SM) Stock Fund
     (formerly AXP Stock Fund)


PROXY STATEMENT


                                                                   Dec. 16, 2005


HERE IS A BRIEF OVERVIEW OF THE CHANGES BEING RECOMMENDED FOR YOUR RIVERSOURCE
MUTUAL FUND. WE ENCOURAGE YOU TO READ THE FULL TEXT OF THE ENCLOSED PROXY
STATEMENT.


Q: WHAT CHANGES HAVE RECENTLY TAKEN PLACE?

On Sept. 30, the Fund's investment manager, Ameriprise Financial, Inc.
("Ameriprise Financial") (formerly American Express Financial Corporation) was
spun off from its parent company, American Express Company. The investment
management functions were then moved to RiverSource Investments, LLC
("RiverSource Investments"), a wholly-owned subsidiary of Ameriprise Financial.
The Board of Directors ("Board") changed the name of each fund and the funds are
now listed in newspapers under RiverSource.


Q: WHY AM I BEING ASKED TO VOTE?


Mutual funds are required to get shareholders' approval for certain contracts
and certain kinds of changes, like the ones included in this proxy statement.


Q: IS MY VOTE IMPORTANT?


Absolutely! While the Board of each RiverSource Fund has reviewed these changes
and recommends you approve them, you have the right to voice your opinion. Until
the Fund is sure that a quorum has been reached (50% of existing shares), it
will continue to contact shareholders asking them to vote. These efforts cost
money -- so please, vote immediately.


Q: WHAT AM I BEING ASKED TO VOTE ON?

Shareholders are being asked to vote on:

- -  The merger ("Reorganization") of RiverSource Stock Fund and RiverSource
   Disciplined Equity Fund.

- -  Election of Board members.




<Page>


- -  An amendment to the Fund's Articles of Incorporation to permit the Board to
   establish the minimum account value and to change the name of the corporation
   to "RiverSource" consistent with the name of the fund.

- -  An Investment Management Services Agreement ("IMS Agreement") with
   RiverSource Investments.


We encourage you to read the full text of the proxy statement to obtain a more
detailed understanding of the issues.


Q: IF APPROVED, WHEN WILL THE REORGANIZATION HAPPEN?

If shareholders approve the Reorganization, it will take place shortly after the
shareholder meeting. In the interim, however, it will be important for the Fund
to have a properly elected Board and an IMS Agreement that has been approved by
shareholders.


Q: WHAT DO BOARD MEMBERS DO?

Board members represent the interests of the shareholders and oversee the
management of the Fund.

Q: WHAT CHANGES ARE PROPOSED TO THE INVESTMENT MANAGEMENT SERVICES AGREEMENT?


While the spin off of Ameriprise Financial and transfer of the IMS Agreement to
RiverSource Investments did not cause a termination of the IMS Agreement, the
Board determined that it would be prudent to give shareholders an opportunity to
vote on the IMS Agreement. The IMS Agreement also clarifies the circumstances
under which the Board may change an index for purposes of calculating a
performance incentive adjustment.


Q: HOW DOES THE BOARD RECOMMEND THAT I VOTE?

After careful consideration, the Board recommends that you vote FOR each
proposal.

Q: HOW DO I VOTE?

You can vote in one of four ways:

- -  By mail with the enclosed proxy card

- -  By telephone

- -  By web site

- -  In person at the meeting

Please refer to the enclosed voting instruction card for the telephone number
and internet address.

Q: WHOM SHOULD I CALL IF I HAVE QUESTIONS?


If you have questions about any of the proposals described in the proxy
statement or about voting procedures, please call your financial advisor or call
client services toll free at (877) 256-6085.



                       Statement of Additional Information

                                  Dec. 16, 2005

                           AXP(R) Growth Series, Inc.

                        RiverSource Large Cap Equity Fund

This Statement of Additional Information ("SAI") consists of this cover page and
incorporates by reference the following described documents, each of which has
been previously filed and accompanies this Statement of Additional Information.


1. RiverSource Large Cap Equity Fund's most recent SAI, dated Nov. 29, 2005.


2. RiverSource Large Cap Equity Fund's most recent annual report, for the period
   ended July 31, 2005.


3. RiverSource New Dimensions Fund's most recent SAI, dated Nov. 29, 2005.


4. RiverSource New Dimensions Fund's most recent annual report, for the period
   ended July 31, 2005.


This SAI is not a prospectus. It should be read in conjunction with the proxy
statement/prospectus, which may be obtained by calling (877) 256-6085 or writing
RiverSource Service Corporation, 70100 Ameriprise Financial Center, Minneapolis,
MN 55474.



RiverSource Large Cap Equity Fund (Buying Fund)

RiverSource New Dimensions Fund (Selling Fund)

Introduction to Proposed Fund Merger

July 31, 2005

The accompanying unaudited pro forma combining statement of assets and
liabilities and the statement of operations reflect the accounts of the two
funds at and for the 12-month period ending July 31, 2005. These statements have
been derived from financial statements prepared for RiverSource Large Cap Equity
Fund and RiverSource New Dimensions Fund as of July 31, 2005. RiverSource Large
Cap Equity Fund invests primarily in equity securities with a market
capitalization greater than $5 billion at the time of purchase. RiverSource New
Dimensions Fund invests all of its assets in Growth Trends Portfolio, a series
of Growth Trust, an open-end investment company that has the same objectives as
the Fund. The Portfolio invests primarily in common stocks showing potential for
significant growth and operating in areas where economic or technological
changes are occurring.

Under the proposed Agreement and Plan of Reorganization, Class A shares of the
RiverSource New Dimensions Fund would be exchanged for Class A shares of the
RiverSource Large Cap Equity Fund. Class B shares of the RiverSource New
Dimensions Fund would be exchanged for Class B shares of the RiverSource Large
Cap Equity Fund. Class C shares of the RiverSource New Dimensions Fund would be
exchanged for Class C shares of the RiverSource Large Cap Equity Fund. Class I
shares of the RiverSource New Dimensions Fund would be exchanged for Class I
shares of the RiverSource Large Cap Equity Fund. Class Y shares of the
RiverSource New Dimensions Fund would be exchanged for Class Y shares of the
RiverSource Large Cap Equity Fund.

The pro forma combining statements have been prepared to give effect to the
proposed transaction on the historical operations of the accounting survivor,
RiverSource Large Cap Equity Fund, as if the transaction had occurred at the
beginning of the fiscal year ending July 31, 2005.

2   --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


RiverSource Large Cap Equity Fund (Buying Fund)

RiverSource New Dimensions Fund (Selling Fund)

Pro forma combining



Statement of assets and liabilities


                                                                  RiverSource     RiverSource
                                                                  Large Cap     New Dimensions   Pro forma            Pro forma
July 31, 2005 (Unaudited)                                         Equity Fund        Fund       Adjustments           Combined
Assets
                                                                                                      
Investments in securities, at cost (Note 2)                   $1,496,044,828  $            -- $ 10,117,675,481(a) $11,613,720,309
                                                              --------------  --------------- ----------------    ---------------
Investments in securities, at value* (Note 2)                 $1,593,969,074  $            -- $ 11,599,049,973(a) $13,193,019,047
Investment in Portfolio (Note 2)                                          --   11,522,269,040  (11,522,269,040)(a)             --
Foreign currency holdings (identified cost $5,524
   for RiverSource New Dimensions Fund) (Note 2)                          --               --            6,033(a)           6,033
Capital shares receivable                                            183,393          936,935               --          1,120,328
Expense reimbursement receivable from Ameriprise Financial
   (Note 2)                                                          854,035               --         (854,035)(b)             --
Dividends and accrued interest receivable (Note 2)                 1,474,567               --        6,564,311(a)       8,038,878
Receivable for investment securities sold (Note 2)                25,448,033               --      134,153,505(a)     159,601,538
                                                              --------------  --------------- ----------------    ---------------
Total assets                                                   1,621,929,102   11,523,205,975      216,650,747     13,361,785,824
                                                              --------------  --------------- ----------------    ---------------
Liabilities
Disbursements in excess of cash on demand deposit (Note 2)           574,129               --        3,209,619(a)       3,783,748
Capital shares payable                                               233,627          975,810               --          1,209,437
Payable for investment securities purchased (Note 2)              32,555,009               --      139,724,399(a)     172,279,408
Payable upon return of securities loaned (Note 2)                 34,147,000               --       64,419,582(a)      98,566,582
Accrued investment management services fee (Note 2)                   25,327               --        1,729,086(a),(c)   1,754,413
Accrued distribution fee                                              20,384          104,227               --            124,611
Accrued service fee                                                        1            7,072               --              7,073
Accrued transfer agency fee                                            5,066            7,488          611,071(h),(i)     623,625
Accrued administrative services fee (Note 2)                           2,066           11,218        3,249,409(d)       3,262,693
Other accrued expenses (Note 2)                                      290,046          737,043          691,017(a),      1,718,106
                                                                                                              (b),
                                                                                                              (e),
                                                                                                              (f),
                                                                                                              (g)
Options contracts written, at value (premiums received
   $6,283,012 for RiverSource New Dimensions Fund) (Note 2)               --               --        9,529,493(a)       9,529,493
                                                              --------------  --------------- ----------------    ---------------
Total liabilities                                                 67,852,655        1,842,858      223,163,676        292,859,189
                                                              --------------  --------------- ----------------    ---------------
Net assets applicable to outstanding capital stock            $1,554,076,447  $11,521,363,117 $     (6,512,929)   $13,068,926,635
                                                              ==============  =============== ================    ===============
Represented by
Capital stock -- $.01 par value (Note 3)                      $    2,973,060  $     4,847,114 $     17,107,578    $    24,927,752
Additional paid-in capital (Note 3)                            2,430,766,764    9,354,954,421      (17,107,578)    11,768,613,607
Undistributed (excess of distributions over)
   net investment income (Note 2)                                  4,353,601       19,084,775       (6,512,929)        16,925,447
Accumulated net realized gain (loss)                            (981,941,224)     664,348,286               --       (317,592,938)
Unrealized appreciation (depreciation) on investments
   and on translation of assets and liabilities
   in foreign currencies                                          97,924,246    1,478,128,521               --      1,576,052,767
                                                              --------------  --------------- ----------------    ---------------
Total -- representing net assets applicable
   to outstanding capital stock                               $1,554,076,447  $11,521,363,117 $     (6,512,929)   $13,068,926,635
                                                              ==============  =============== ================    ===============
Net assets applicable to outstanding shares: Class A          $1,030,109,387  $ 6,845,241,780 $     (3,869,557)   $ 7,871,481,610
                                             Class B          $  471,864,336  $ 2,003,569,556 $     (1,132,601)   $ 2,474,301,291
                                             Class C          $    9,284,115  $    45,662,322 $        (25,813)   $    54,920,624
                                             Class I          $   42,610,172  $    69,748,064 $        (39,428)   $   112,318,808
                                             Class Y          $      208,437  $ 2,557,141,395 $     (1,445,530)   $ 2,555,904,302
Shares outstanding (Note 3):                 Class A shares      195,824,050      285,315,473               --      1,496,465,157
                                             Class B shares       91,616,485       88,486,457               --        480,439,195
                                             Class C shares        1,799,299        2,019,120               --         10,643,584
                                             Class I shares        8,026,676        2,889,590               --         21,154,479
                                             Class Y shares           39,442      106,000,741               --        484,072,750
Net asset value per share of
   outstanding capital stock:                Class A          $         5.26  $         23.99 $             --    $          5.26
                                             Class B          $         5.15  $         22.64 $             --    $          5.15
                                             Class C          $         5.16  $         22.61 $             --    $          5.16
                                             Class I          $         5.31  $         24.14 $             --    $          5.31
                                             Class Y          $         5.28  $         24.12 $             --    $          5.28
                                                              --------------  --------------- ----------------    ---------------
* Including securities on loan, at value (Note 2)             $   32,867,866  $            -- $     60,816,462(a) $    93,684,328
                                                              --------------  --------------- ----------------    ---------------



See accompanying notes to pro forma financial statements.

3   --   AXP Fixed Income Series, Inc. -- RiverSource Large Cap Equity Fund


RiverSource Large Cap Equity Fund (Buying Fund)

RiverSource New Dimensions Fund (Selling Fund)Pro forma combining



Statement of operations


                                                                  RiverSource     RiverSource
Large Cap                                                       New Dimensions     Pro forma       Pro forma
Year ended July 31, 2005 (Unaudited)                              Equity Fund        Fund         Adjustments            Combined
Investment income
Income:
                                                                                                       
Dividends                                                        $ 31,753,996 $  233,044,387   $         --        $  264,798,383
Interest                                                              871,611     12,020,030             --            12,891,641
Fee income from securities lending                                    227,206        320,444             --               547,650
   Less foreign taxes withheld                                       (304,627)      (442,235)            --              (746,862)
                                                                 ------------ --------------   ------------        --------------
Total income                                                       32,548,186    244,942,626             --           277,490,812
                                                                 ------------ --------------   ------------        --------------
Expenses:
Expenses allocated from Portfolio (Note 2)                                 --     62,533,534    (62,533,534)(a)                --
Investment management services fee (Note 2)                         9,680,873             --     62,457,211(a),(c)     72,138,084
Distribution fee
   Class A                                                          2,866,767     20,565,923             --            23,432,690
   Class B                                                          5,272,525     24,839,333             --            30,111,858
   Class C                                                            101,520        559,396             --               660,916
Transfer agency fee                                                 3,572,606     22,354,541        775,248(h),(i)     26,702,395
Incremental transfer agency fee
   Class A                                                            253,892      1,352,830        (93,656)(i)         1,513,066
   Class B                                                            214,592      1,005,784        (69,861)(i)         1,150,515
   Class C                                                              4,181         26,158           (660)(i)            29,679
Service fee -- Class Y                                                  3,664      2,800,648             --             2,804,312
Administrative services fees and expenses (Note 2)                    860,387      4,756,123      3,249,409(d)          8,865,919
Custodian fees (Note 2)                                               296,060             --        803,940(a),(e)      1,100,000
Compensation of board members (Note 2)                                 17,545         32,620         39,835(a),(f)         90,000
Printing and postage                                                  626,976      3,426,659             --             4,053,635
Registration fees                                                      42,760         92,530             --               135,290
Audit fees (Note 2)                                                    30,000         12,500          7,500(a),(g)         50,000
Other (Note 2)                                                         67,503        233,261        499,085(a)            799,849
                                                                 ------------ --------------   ------------        --------------
Total expenses                                                     23,911,851    144,591,840      5,134,517           173,638,208
   Expenses waived/reimbursed by RiverSource
   Investments, LLC (Note 2)                                         (859,581)      (522,229)     1,381,810(b)                 --
                                                                 ------------ --------------   ------------        --------------
                                                                   23,052,270    144,069,611      6,516,327           173,638,208
   Earnings credits on cash balances (Note 2)                         (59,729)            --         (3,398)(a)           (63,127)
                                                                 ------------ --------------   ------------        --------------
Total net expenses                                                 22,992,541    144,069,611      6,512,929           173,575,081
                                                                 ------------ --------------   ------------        --------------
Investment income (loss) -- net                                     9,555,645    100,873,015     (6,512,929)          103,915,731
                                                                 ------------ --------------   ------------        --------------
Realized and unrealized gain (loss) -- net
Net realized gain (loss) on:
   Security transactions                                           81,303,618    757,404,472             --           838,708,090
   Foreign currency transactions                                       (8,433)      (554,419)            --              (562,852)
   Futures contracts                                                       --     (1,726,839)            --            (1,726,839)
   Options contracts written                                               --       (427,448)            --              (427,448)
                                                                 ------------ --------------   ------------        --------------
Net realized gain (loss) on investments                            81,295,185    754,695,766             --           835,990,951
Net change in unrealized appreciation (depreciation)
   on investments and on translation of assets and
   liabilities in foreign currencies                              128,747,672    158,658,167             --           287,405,839
                                                                 ------------ --------------   ------------        --------------
Net gain (loss) on investments and foreign currencies             210,042,857    913,353,933             --         1,123,396,790
                                                                 ------------ --------------   ------------        --------------
Net increase (decrease) in net assets resulting from operations $ 219,598,502 $1,014,226,948   $ (6,512,929)       $1,227,312,521
                                                                ============= ==============   ============        ==============



See accompanying notes to pro forma financial statements.

4   --   AXP Fixed Income Series, Inc. -- RiverSource Large Cap Equity Fund


RiverSource Large Cap Equity Fund (Buying Fund)

RiverSource New Dimensions Fund (Selling Fund)

Notes to Pro Forma Financial Statements

(Unaudited as to July 31, 2005)

1. BASIS OF COMBINATION

The unaudited pro forma combining statement of assets and liabilities and the
statement of operations reflect the accounts of the two funds at and for the
12-month period ending July 31, 2005. These statements have been derived from
financial statements prepared for the RiverSource Large Cap Equity Fund and
RiverSource New Dimensions Fund as of July 31, 2005.

Each Fund is registered under the Investment Company Act of 1940 (as amended) as
a diversified, open-end management investment company. The primary investments
of each Fund are as follows:

RiverSource Large Cap Equity Fund invests primarily in equity securities with a
market capitalization greater than $5 billion at the time of purchase.

RiverSource New Dimensions Fund invests all of its assets in Growth Trends
Portfolio, a series of Growth Trust, an open-end investment company that has the
same objectives as the Fund. The Portfolio invests primarily in common stocks
showing potential for significant growth and operating in areas where economic
or technological changes are occurring.

The pro forma statements give effect to the proposed transfer of the assets and
liabilities of RiverSource New Dimensions Fund in exchange for Class A, B, C, I
and Y shares of RiverSource Large Cap Equity Fund under U.S. generally accepted
accounting principles. The pro forma statements also reflect changes needed
regarding the change in structure of RiverSource New Dimensions Fund. Finally,
the pro forma statements reflect estimates for the combined RiverSource Large
Cap Equity Fund based on the increased asset level of the merger and associated
economies of scale, adjusted to reflect current fees.

The pro forma combining statements should be read in conjunction with the
historical financial statements of the funds incorporated by reference in the
Statement of Additional Information.

The pro forma statement of operations give effect to the proposed transaction on
the historical operations of the accounting survivor, RiverSource Large Cap
Equity Fund, as if the transaction had occurred at the beginning of the year
presented.

2.   PRO FORMA ADJUSTMENTS

(a)  To reflect adjustments needed regarding the change in structure of
     RiverSource New Dimensions Fund from a feeder fund presentation into a
     reporting format comparable with the accounting survivor.

(b)  To adjust for the termination of the agreement that RiverSource Investments
     and its affiliates would waive certain fees and absorb certain expenses.


(c)  To reflect the increase in investment management services fee due to the
     Reorganization. The Performance Incentive Adjustment (PIA) for RiverSource
     New Dimensions Fund was removed and a new PIA adjustment was calculated
     based on the RiverSource New Dimensions Fund average net assets as of July
     31, 2005 and the RiverSource Large Cap Equity Fund PIA rate. The adjustment
     also includes the impact of a special management fee waiver that will be in
     effect until August 2006 on the merged fund. This special management fee
     waiver is estimated to reduce the management fee ratio by approximately
     0.02%.

(d)  To reflect the net increase in administrative services fees due to the
     Reorganization and the revised administrative services agreement.


(e)  To reflect the decrease in custodian fees due to the Reorganization.

(f)  To adjust for the change in the compensation of board members due to the
     Reorganization.


(g)  To reflect the reduction in audit fees due to the Reorganization.

(h)  To adjust for closed account fees for each RiverSource New Dimensions Fund
     account that will be closed on the system as a result of this merger.

(i)  To reflect the anticipated reduction in the transfer agent fees due to the
     RiverSource Large Cap Equity Fund and RiverSource New Dimensions Fund
     accounts that will be combined as a result of the merger.



5   --   AXP Fixed Income Series, Inc. -- RiverSource Large Cap Equity Fund


3. CAPITAL SHARES


The pro forma net asset value per share assumes the issuance of additional Class
A, Class B, Class C, Class I and Class Y shares of RiverSource Large Cap Equity
Fund if the reorganization were to have taken place on July 31, 2005. The pro
forma number of Class A shares outstanding of 1,496,465,157 consists of
1,300,641,107 shares assumed to be issued to Class A shareholders of the
RiverSource New Dimensions Fund, plus 195,824,050 Class A shares of the
RiverSource Large Cap Equity Fund outstanding as of July 31, 2005. The pro forma
number of Class B shares outstanding of 480,439,195 consists of 388,822,710
shares assumed to be issued to Class B shareholders of the RiverSource New
Dimensions Fund, plus 91,616,485 Class B shares of the RiverSource Large Cap
Equity Fund outstanding as of July 31, 2005. The pro forma number of Class C
shares outstanding of 10,643,584 consists of 8,844,285 shares assumed to be
issued to Class C shareholders of the RiverSource New Dimensions Fund, plus
1,799,299 Class C shares of the RiverSource Large Cap Equity Fund outstanding as
of July 31, 2005. The pro forma number of Class I shares outstanding of
21,154,479 consists of 13,127,803 shares assumed to be issued to Class I
shareholders of the RiverSource New Dimensions Fund, plus 8,026,676 Class I
shares of the RiverSource Large Cap Equity Fund outstanding as of July 31, 2005.
The pro forma number of Class Y shares outstanding of 484,072,750 consists of
484,033,308 shares assumed to be issued to Class Y shareholders of the
RiverSource New Dimensions Fund, plus 39,442 Class Y shares of the RiverSource
Large Cap Equity Fund outstanding as of July 31, 2005.


6   --   AXP Fixed Income Series, Inc. -- RiverSource Large Cap Equity Fund


COMBINED INVESTMENTS IN SECURITIES

RiverSource Large Cap Equity Fund

JULY 31, 2005 (Unaudited)
(Percentages represent value of investments compared to net assets)

COMMON STOCKS (97.5%)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
AEROSPACE & DEFENSE (6.2%)
Boeing                                      132,630     5,439,893     5,572,523      $  8,754,907  $ 359,087,337  $ 367,842,244
Empresa Brasileira de Aeronautica ADR       119,302            --       119,302(c)      3,858,227             --      3,858,227
General Dynamics                             12,727            --        12,727         1,466,023             --      1,466,023
Goodrich                                    116,774            --       116,774         5,166,082             --      5,166,082
Honeywell Intl                              210,201            --       210,201         8,256,695             --      8,256,695
Lockheed Martin                             137,816     2,057,720     2,195,536         8,599,718    128,401,728    137,001,446
Northrop Grumman                             80,844     1,000,000     1,080,844         4,482,800     55,450,000     59,932,800
United Technologies                         158,889     4,368,984     4,527,873         8,055,672    221,507,489    229,563,161
                                                                                     ------------------------------------------
Total                                                                                  48,640,124    764,446,554    813,086,678
- -------------------------------------------------------------------------------------------------------------------------------
AUTO COMPONENTS (--%)
Johnson Controls                              8,639            --         8,639           496,224             --        496,224
Lear                                         11,436            --        11,436           489,118             --        489,118
                                                                                     ------------------------------------------
Total                                                                                     985,342             --        985,342
- -------------------------------------------------------------------------------------------------------------------------------
AUTOMOBILES (--%)
Ford Motor                                   85,134            --        85,134           914,339             --        914,339
General Motors                               64,760            --        64,760(e)      2,384,463             --      2,384,463
Harley-Davidson                              13,137            --        13,137           698,757             --        698,757
                                                                                     ------------------------------------------
Total                                                                                   3,997,559             --      3,997,559
- -------------------------------------------------------------------------------------------------------------------------------
BEVERAGES (2.2%)
Coca-Cola                                    18,776            --        18,776           821,638             --        821,638
Coca-Cola Enterprises                        42,291            --        42,291           993,839             --        993,839
PepsiCo                                     245,882     5,000,000     5,245,882        13,407,945    272,650,000    286,057,945
                                                                                     ------------------------------------------
Total                                                                                  15,223,422    272,650,000    287,873,422
- -------------------------------------------------------------------------------------------------------------------------------
BIOTECHNOLOGY (4.5%)
Amgen                                       162,488     3,463,407     3,625,895(b)     12,958,418    276,206,708    289,165,126
Biogen Idec                                  68,514       800,000       868,514(b,d)    2,691,915     31,432,000     34,123,915
Genentech                                    65,830     1,000,000     1,065,830(b,d)    5,880,594     89,330,000     95,210,594
Genzyme                                          --     1,100,000     1,100,000(b)             --     81,851,000     81,851,000
Gilead Sciences                              53,201     1,800,000     1,853,201(b)      2,383,937     80,658,000     83,041,937
                                                                                     ------------------------------------------
Total                                                                                  23,914,864    559,477,708    583,392,572
- -------------------------------------------------------------------------------------------------------------------------------
BUILDING PRODUCTS (0.1%)
American Standard Companies                  27,504       361,948       389,452         1,217,877     16,027,057     17,244,934
Masco                                        44,839            --        44,839         1,520,491             --      1,520,491
                                                                                     ------------------------------------------
Total                                                                                   2,738,368     16,027,057     18,765,425
- -------------------------------------------------------------------------------------------------------------------------------
CAPITAL MARKETS (2.1%)
Bank of New York                            107,433            --       107,433(b)      3,306,788             --      3,306,788
Charles Schwab                                   --    17,272,001    17,272,001                --    236,626,414    236,626,414
E*TRADE Financial                           107,034            --       107,034         1,660,097             --      1,660,097
Franklin Resources                           74,301            --        74,301         6,005,007             --      6,005,007
Investors Financial Services                207,410            --       207,410         7,139,052             --      7,139,052
Legg Mason                                   11,332            --        11,332         1,157,564             --      1,157,564
Lehman Brothers Holdings                     50,518            --        50,518         5,310,957             --      5,310,957
Merrill Lynch & Co                           52,867            --        52,867         3,107,522             --      3,107,522
Morgan Stanley                              191,367            --       191,367        10,152,019             --     10,152,019
National Financial Partners                  10,574            --        10,574           478,474             --        478,474
Nomura Holdings                              97,200            --        97,200(c)      1,150,616             --      1,150,616
State Street                                 88,509            --        88,509         4,402,438             --      4,402,438
                                                                                     ------------------------------------------
Total                                                                                  43,870,534    236,626,414    280,496,948
- -------------------------------------------------------------------------------------------------------------------------------


See accompanying notes to combined investments in securities.

7   --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
CHEMICALS (1.7%)
Dow Chemical                                195,329            --       195,329      $  9,366,026  $          --  $   9,366,026
Eastman Chemical                             18,408            --        18,408         1,019,619             --      1,019,619
El du Pont de Nemours & Co                   41,999     4,829,004     4,871,003         1,792,517    206,101,891    207,894,408
Lyondell Chemical                            46,581            --        46,581         1,301,473             --      1,301,473
Monsanto                                     54,927            --        54,927         3,700,432             --      3,700,432
RPM Intl                                     27,333            --        27,333           512,494             --        512,494
                                                                                     ------------------------------------------
Total                                                                                  17,692,561    206,101,891    223,794,452
- -------------------------------------------------------------------------------------------------------------------------------
COMMERCIAL BANKS (2.5%)
Bank of America                             632,640     5,000,000     5,632,640        27,583,104    218,000,000    245,583,104
Commerce Bancorp                            108,171       842,027       950,198(e)      3,670,242     28,569,976     32,240,218
Fifth Third Bancorp                          26,291            --        26,291         1,133,142             --      1,133,142
ICICI Bank ADR                               38,269            --        38,269(c)      1,010,684             --      1,010,684
PNC Financial Services Group                 82,245            --        82,245         4,508,671             --      4,508,671
Regions Financial                            23,288            --        23,288           783,408             --        783,408
US Bancorp                                  160,442       522,018       682,460         4,822,887     15,691,861     20,514,748
Wachovia                                    199,329            --       199,329        10,042,195             --     10,042,195
Wells Fargo & Co                            230,404            --       230,404        14,132,981             --     14,132,981
Western Alliance Bancorp                        304            --           304(b)          9,394             --          9,394
                                                                                     ------------------------------------------
Total                                                                                  67,696,708    262,261,837    329,958,545
- -------------------------------------------------------------------------------------------------------------------------------
COMMERCIAL SERVICES & SUPPLIES (0.2%)
Avery Dennison                               20,285            --        20,285         1,149,551             --      1,149,551
Career Education                             15,200            --        15,200(b)        589,608             --        589,608
Cendant                                     693,946            --       693,946        14,822,687             --     14,822,687
Waste Management                                 --       424,994       424,994                --     11,950,831     11,950,831
                                                                                     ------------------------------------------
Total                                                                                  16,561,846     11,950,831     28,512,677
- -------------------------------------------------------------------------------------------------------------------------------
COMMUNICATIONS EQUIPMENT (4.6%)
CIENA                                       658,925            --       658,925(b)      1,475,992             --      1,475,992
Cisco Systems                               606,218    10,912,340    11,518,558(b)     11,609,075    208,971,311    220,580,386
Corning                                      94,665            --        94,665(b)      1,803,368             --      1,803,368
Motorola                                    291,050    15,843,471    16,134,521         6,164,439    335,564,715    341,729,154
Nokia ADR                                 1,064,288       756,166     1,820,454(c)     16,975,394     12,060,848     29,036,242
QUALCOMM                                     55,709            --        55,709         2,199,948             --      2,199,948
                                                                                     ------------------------------------------
Total                                                                                  40,228,216    556,596,874    596,825,090
- -------------------------------------------------------------------------------------------------------------------------------
COMPUTERS & PERIPHERALS (7.6%)
Apple Computer                                   --     5,500,000     5,500,000(b,d)           --    234,575,000    234,575,000
Brocade Communications Systems              330,190            --       330,190         1,479,251             --      1,479,251
Dell                                        543,394     5,163,772     5,707,166(b)     21,991,156    208,977,853    230,969,009
EMC                                         626,589    21,116,129    21,742,718(b)      8,578,003    289,079,806    297,657,809
Hewlett-Packard                             519,650            --       519,650        12,793,783             --     12,793,783
Intl Business Machines                      151,477            --       151,477        12,642,270             --     12,642,270
NCR                                              --     5,371,843     5,371,843(b)             --    186,456,671    186,456,671
SanDisk                                          --       429,661       429,661(b)             --     14,531,135     14,531,135
                                                                                     ------------------------------------------
Total                                                                                  57,484,463    933,620,465    991,104,928
- -------------------------------------------------------------------------------------------------------------------------------
CONSUMER FINANCE (0.1%)
Capital One Financial                        98,291            --        98,291         8,109,007             --      8,109,007
First Marblehead                             41,434            --        41,434(b)      1,439,832             --      1,439,832
MBNA                                        185,929            --       185,929         4,677,974             --      4,677,974
                                                                                     ------------------------------------------
Total                                                                                  14,226,813             --     14,226,813
- -------------------------------------------------------------------------------------------------------------------------------
CONTAINERS & PACKAGING (--%)
Temple-Inland                                57,494            --        57,494         2,287,686             --      2,287,686
- -------------------------------------------------------------------------------------------------------------------------------
DISTRIBUTORS (--%)
Genuine Parts                                 8,142            --         8,142           372,822             --        372,822
- -------------------------------------------------------------------------------------------------------------------------------


                   See accompanying notes to combined investments in securities.

8   --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund



COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
DIVERSIFIED FINANCIAL SERVICES (2.5%)
CapitalSource                                    --     1,200,151     1,200,151(b,e) $         --  $  23,498,957  $  23,498,957
Citigroup                                   595,194     4,393,640     4,988,834        25,890,939    191,123,340    217,014,279
Consumer Discretionary Select
Sector SPDR Fund                            148,564            --       148,564         5,149,228             --      5,149,228
Energy Select Sector SPDR Fund              285,008            --       285,008(e)     13,566,381             --     13,566,381
Health Care Select Sector SPDR Fund         276,173            --       276,173         8,762,969             --      8,762,969
Industrial Select Sector SPDR Fund          291,477            --       291,477(e)      8,898,793             --      8,898,793
iShares Dow Jones US Healthcare
Sector Index Fund                           141,848            --       141,848         8,916,565             --      8,916,565
JPMorgan Chase & Co                         414,710            --       414,710        14,572,909             --     14,572,909
Materials Select Sector SPDR Fund           332,618            --       332,618(e)      9,526,180             --      9,526,180
Utilities Select Sector SPDR Fund           348,316            --       348,316(e)     11,240,157             --     11,240,157
                                                                                     ------------------------------------------
Total                                                                                 106,524,121    214,622,297    321,146,418
- -------------------------------------------------------------------------------------------------------------------------------
DIVERSIFIED TELECOMMUNICATION
SERVICES (1.7%)
ALLTEL                                       93,518            --        93,518         6,218,947             --      6,218,947
BellSouth                                   188,312            --       188,312         5,197,411             --      5,197,411
Citizens Communications                      39,163            --        39,163           514,602             --        514,602
KT ADR                                       63,547            --        63,547(c)      1,406,931             --      1,406,931
MCI                                         138,857            --       138,857         3,543,631             --      3,543,631
SBC Communications                          581,756            --       581,756        14,223,934             --     14,223,934
Sprint Nextel                             2,659,750     4,000,000     6,659,750        71,547,274    107,600,000    179,147,274
Telewest Global                             601,498            --       601,498(b,c)   13,437,465             --     13,437,465
Verizon Communications                      107,110            --       107,110         3,666,375             --      3,666,375
                                                                                     ------------------------------------------
Total                                                                                 119,756,570    107,600,000    227,356,570
- -------------------------------------------------------------------------------------------------------------------------------
ELECTRIC UTILITIES (0.1%)
Entergy                                      42,775            --        42,775         3,333,884             --      3,333,884
Exelon                                      113,730            --       113,730         6,086,830             --      6,086,830
FPL Group                                    37,773            --        37,773         1,628,772             --      1,628,772
PPL                                          27,194            --        27,194         1,674,607             --      1,674,607
Southern                                    120,771            --       120,771         4,225,777             --      4,225,777
TXU                                           9,907            --         9,907           858,342             --        858,342
Xcel Energy                                  49,501            --        49,501           960,814             --        960,814
                                                                                     ------------------------------------------
Total                                                                                  18,769,026             --     18,769,026
- -------------------------------------------------------------------------------------------------------------------------------
ELECTRICAL EQUIPMENT (--%)
Emerson Electric                             19,489            --        19,489         1,282,376             --      1,282,376
- -------------------------------------------------------------------------------------------------------------------------------
ELECTRONIC EQUIPMENT &
INSTRUMENTS (--%)
Flextronics Intl                            177,295            --       177,295(b,c)    2,400,575             --      2,400,575
Solectron                                   418,329            --       418,329(b)      1,606,383             --      1,606,383
                                                                                     ------------------------------------------
Total                                                                                   4,006,958             --      4,006,958
- -------------------------------------------------------------------------------------------------------------------------------
ENERGY EQUIPMENT & SERVICES (3.1%)
Cooper Cameron                               18,622            --        18,622(b)      1,321,790             --      1,321,790
GlobalSantaFe                                    --       295,746       295,746                --     13,305,613     13,305,613
Halliburton                                  86,399     2,000,000     2,086,399         4,842,663    112,100,000    116,942,663
Schlumberger                                 48,563     1,500,000     1,548,563         4,066,666    125,610,000    129,676,666
Transocean                                   49,698     2,500,000     2,549,698(b)      2,804,458    141,075,000    143,879,458
Weatherford Intl                             31,022            --        31,022(b)      1,963,072             --      1,963,072
                                                                                     ------------------------------------------
Total                                                                                  14,998,649    392,090,613    407,089,262
- -------------------------------------------------------------------------------------------------------------------------------
FOOD & STAPLES RETAILING (1.5%)
CVS                                         121,638            --       121,638         3,774,427             --      3,774,427
Safeway                                          --     5,718,860     5,718,860                --    138,968,298    138,968,298
Wal-Mart Stores                             291,079            --       291,079        14,364,749             --     14,364,749
Whole Foods Market                               --       300,000       300,000                --     40,953,000     40,953,000
                                                                                     ------------------------------------------
Total                                                                                  18,139,176    179,921,298    198,060,474
- -------------------------------------------------------------------------------------------------------------------------------


See accompanying notes to combined investments in securities.

9   --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
FOOD PRODUCTS (0.1%)
General Mills                                50,591            --        50,591      $  2,398,013  $          --  $   2,398,013
Kellogg                                     235,450            --       235,450        10,668,240             --     10,668,240
                                                                                     ------------------------------------------
Total                                                                                  13,066,253             --     13,066,253
- -------------------------------------------------------------------------------------------------------------------------------
GAS UTILITIES (--%)
ONEOK                                        48,928            --        48,928         1,710,034             --      1,710,034
- -------------------------------------------------------------------------------------------------------------------------------
HEALTH CARE EQUIPMENT &
SUPPLIES (2.3%)
Alcon                                         9,300       550,000       559,300(c,d)    1,065,315     63,002,500     64,067,815
Baxter Intl                                 189,390            --       189,390         7,437,346             --      7,437,346
Boston Scientific                            84,706            --        84,706(b)      2,452,239             --      2,452,239
Guidant                                      99,243            --        99,243         6,827,918             --      6,827,918
Hospira                                      40,635            --        40,635(b)      1,554,289             --      1,554,289
Medtronic                                   102,643     2,809,717     2,912,360         5,536,563    151,556,135    157,092,698
St. Jude Medical                                 --     1,300,000     1,300,000(b)             --     61,633,000     61,633,000
                                                                                     ------------------------------------------
Total                                                                                  24,873,670    276,191,635    301,065,305
- -------------------------------------------------------------------------------------------------------------------------------
HEALTH CARE PROVIDERS &
SERVICES (4.1%)
Aetna                                        21,998            --        21,998         1,702,645             --      1,702,645
AmerisourceBergen                            16,474            --        16,474         1,182,668             --      1,182,668
Cardinal Health                             170,032            --       170,032        10,130,507             --     10,130,507
Caremark Rx                                      --     2,996,491     2,996,491(b)             --    133,583,569    133,583,569
CIGNA                                        16,885            --        16,885         1,802,474             --      1,802,474
HCA                                         242,155     1,037,600     1,279,755        11,926,134     51,101,800     63,027,934
HealthSouth                                 196,272            --       196,272(b)      1,052,018             --      1,052,018
Magellan Health Services                     69,925            --        69,925(b)      2,504,714             --      2,504,714
McKesson                                     21,072            --        21,072           948,240             --        948,240
Medco Health Solutions                       76,317            --        76,317(b)      3,696,795             --      3,696,795
UnitedHealth Group                          157,393     5,866,983     6,024,376         8,231,654    306,843,211    315,074,865
WellPoint                                     6,526            --         6,526(b)        461,649             --        461,649
                                                                                     ------------------------------------------
Total                                                                                  43,639,498    491,528,580    535,168,078
- -------------------------------------------------------------------------------------------------------------------------------
HOTELS, RESTAURANTS & LEISURE (2.2%)
Applebee's Intl                              64,208            --        64,208         1,702,154             --      1,702,154
Carnival Unit                                    --     3,600,000     3,600,000                --    188,640,000    188,640,000
GTECH Holdings                               32,726            --        32,726           980,471             --        980,471
Royal Caribbean Cruises                          --       593,200       593,200                --     26,960,940     26,960,940
Starbucks                                        --     1,200,000     1,200,000(b)             --     63,060,000     63,060,000
                                                                                     ------------------------------------------
Total                                                                                   2,682,625    278,660,940    281,343,565
- -------------------------------------------------------------------------------------------------------------------------------
HOUSEHOLD DURABLES (2.1%)
Centex                                        5,650            --         5,650           417,987             --        417,987
DR Horton                                        --       424,590       424,590                --     17,442,157     17,442,157
Fortune Brands                                6,614            --         6,614           625,354             --        625,354
Harman Intl Inds                              1,881            --         1,881           161,672             --        161,672
Leggett & Platt                              21,366            --        21,366           540,346             --        540,346
Pulte Homes                                   5,796     2,637,442     2,643,238           542,622    246,917,320    247,459,942
Sony                                         53,100            --        53,100(c)      1,752,522             --      1,752,522
Tempur-Pedic Intl                           164,977            --       164,977(b)      2,839,254             --      2,839,254
                                                                                     ------------------------------------------
Total                                                                                   6,879,757    264,359,477    271,239,234
- -------------------------------------------------------------------------------------------------------------------------------
HOUSEHOLD PRODUCTS (3.2%)
Colgate-Palmolive                            98,478            --        98,478         5,213,425             --      5,213,425
Procter & Gamble                            360,305     6,771,048     7,131,353        20,043,767    376,673,400    396,717,167
Spectrum Brands                             610,210            --       610,210(b)     18,916,510             --     18,916,510
                                                                                     ------------------------------------------
Total                                                                                  44,173,702    376,673,400    420,847,102
- -------------------------------------------------------------------------------------------------------------------------------
INDUSTRIAL CONGLOMERATES (3.1%)
3M                                           20,624            --        20,624         1,546,800             --      1,546,800
General Electric                            578,112    10,698,829    11,276,941        19,944,864    369,109,601    389,054,465
Tyco Intl                                   554,264            --       554,264(c)     16,888,424             --     16,888,424
                                                                                     ------------------------------------------
Total                                                                                  38,380,088    369,109,601    407,489,689
- -------------------------------------------------------------------------------------------------------------------------------

                   See accompanying notes to combined investments in securities.

10  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
INSURANCE (0.4%)
ACE                                         243,468            --       243,468(c)   $ 11,250,656  $          --  $  11,250,656
AFLAC                                        47,433            --        47,433         2,139,228             --      2,139,228
Allstate                                     20,165            --        20,165         1,235,308             --      1,235,308
American Intl Group                         455,744            --       455,744        27,435,789             --     27,435,789
Assurant                                     21,150            --        21,150           781,493             --        781,493
Chubb                                        64,770            --        64,770         5,752,871             --      5,752,871
Endurance Specialty Holdings                 36,019            --        36,019(c)      1,404,741             --      1,404,741
First American                               27,136            --        27,136         1,192,627             --      1,192,627
Hartford Financial Services Group            33,324            --        33,324         2,684,915             --      2,684,915
Montpelier Re Holdings                       12,101            --        12,101(c)        434,668             --        434,668
State Auto Financial                         77,788            --        77,788         2,446,433             --      2,446,433
United America Indemnity Cl A                 9,883            --         9,883(b,c)      181,155             --        181,155
                                                                                     ------------------------------------------
Total                                                                                  56,939,884             --     56,939,884
- -------------------------------------------------------------------------------------------------------------------------------
INTERNET & Catalog Retail (0.9%)
Amazon.com                                       --       300,000       300,000(b)             --     13,551,000     13,551,000
eBay                                        115,102     2,364,395     2,479,497(b)      4,808,962     98,784,423    103,593,385
                                                                                     ------------------------------------------
Total                                                                                   4,808,962    112,335,423    117,144,385
- -------------------------------------------------------------------------------------------------------------------------------
INTERNET SOFTWARE & Services (1.9%)
Google Cl A                                  34,413       331,914       366,327(b)      9,902,685     95,511,573    105,414,258
Yahoo!                                       64,892     4,183,556     4,248,448(b,e)    2,163,499    139,479,757    141,643,256
                                                                                     ------------------------------------------
Total                                                                                  12,066,184    234,991,330    247,057,514
- -------------------------------------------------------------------------------------------------------------------------------
IT SERVICES (0.9%)
Accenture Cl A                               65,124            --        65,124(b,c)    1,630,705             --      1,630,705
Affiliated Computer Services Cl A            65,566            --        65,566(b)      3,276,333             --      3,276,333
Automatic Data Processing                    21,183            --        21,183           940,737             --        940,737
First Data                                    7,613       500,000       507,613           313,199     20,570,000     20,883,199
Fiserv                                           --       239,216       239,216(b)             --     10,614,014     10,614,014
Infosys Technologies ADR                      8,257     1,000,000     1,008,257(c,e)      587,733     71,180,000     71,767,733
Ness Technologies                            42,993            --        42,993(b,c)      429,930             --        429,930
Paychex                                      36,092            --        36,092         1,259,972             --      1,259,972
Satyam Computer Services ADR                 20,765            --        20,765(c)        593,464             --        593,464
                                                                                     ------------------------------------------
Total                                                                                   9,032,073    102,364,014    111,396,087
- -------------------------------------------------------------------------------------------------------------------------------
LEISURE EQUIPMENT & Products (--%)
Mattel                                       51,659            --        51,659           963,440             --        963,440
- -------------------------------------------------------------------------------------------------------------------------------
MACHINERY (0.1%)
Caterpillar                                  62,655            --        62,655         3,377,731             --      3,377,731
Illinois Tool Works                          23,710            --        23,710         2,030,762             --      2,030,762
Ingersoll-Rand Cl A                          11,944            --        11,944(c)        933,662             --        933,662
ITT Inds                                      8,804            --         8,804           936,746             --        936,746
                                                                                     ------------------------------------------
Total                                                                                   7,278,901             --      7,278,901
- -------------------------------------------------------------------------------------------------------------------------------
MEDIA (2.7%)
Clear Channel Communications                 25,453            --        25,453           830,786             --        830,786
Comcast Cl A                                339,366            --       339,366(b)     10,428,717             --     10,428,717
Comcast Special Cl A                        105,129     7,914,044     8,019,173(b)      3,153,870    237,421,320    240,575,190
DreamWorks Animation SKG Cl AF                   --       538,415       538,415(b)             --     12,679,673     12,679,673
EchoStar Communications Cl A                 32,363            --        32,363           929,465             --        929,465
Gannett                                      12,256            --        12,256           894,198             --        894,198
Liberty Global Cl A                          46,713            --        46,713(b)      2,216,065             --      2,216,065
Liberty Media Cl A                          482,881            --       482,881(b)      4,244,524             --      4,244,524
McGraw-Hill Companies                        17,243            --        17,243           793,350             --        793,350
News Corp Cl A                              120,527            --       120,527         1,974,232             --      1,974,232
NTL                                         712,427            --       712,427(b)     47,469,011             --     47,469,011
Omnicom Group                                 8,406            --         8,406           713,417             --        713,417


See accompanying notes to combined investments in securities.

11  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
MEDIA (cont.)
Reader's Digest Assn                         33,909            --        33,909      $    550,682  $          --  $     550,682
Time Warner                                 361,370            --       361,370(b)      6,150,517             --      6,150,517
Tribune                                      72,919            --        72,919         2,661,544             --      2,661,544
Univision Communications Cl A                14,712            --        14,712(b)        416,055             --        416,055
Viacom Cl B                                 231,973            --       231,973         7,768,776             --      7,768,776
Vivendi Universal ADR                       346,059            --       346,059(c)     10,997,755             --     10,997,755
Walt Disney                                 208,297            --       208,297         5,340,735             --      5,340,735
                                                                                     ------------------------------------------
Total                                                                                 107,533,699    250,100,993    357,634,692
- -------------------------------------------------------------------------------------------------------------------------------
METALS & MINING (0.1%)
Alcan                                        31,738            --        31,738(c)      1,072,110             --      1,072,110
Alcoa                                        79,085            --        79,085         2,218,334             --      2,218,334
Barrick Gold                                  3,921            --         3,921(c)         96,065             --         96,065
Coeur d'Alene Mines                         804,721            --       804,721(b)      2,856,760             --      2,856,760
Glamis Gold                                  48,447            --        48,447(b,c)      846,369             --        846,369
Harmony Gold Mining ADR                      72,268            --        72,268(c)        592,598             --        592,598
Kinross Gold                                111,924            --       111,924(b,c)      622,297             --        622,297
Newmont Mining                              168,531            --       168,531         6,328,338             --      6,328,338
PAN American Silver                           6,200            --         6,200(b,c)       98,270             --         98,270
Stillwater Mining                            48,183            --        48,183(b)        393,173             --        393,173
                                                                                     ------------------------------------------
Total                                                                                  15,124,314             --     15,124,314
- -------------------------------------------------------------------------------------------------------------------------------
MULTI-UTILITIES &
UNREGULATED POWER (1.8%)
Dominion Resources                           77,642     3,100,000     3,177,642         5,734,638    228,966,000    234,700,638
Duke Energy                                  43,153            --        43,153         1,274,740             --      1,274,740
                                                                                     ------------------------------------------
Total                                                                                   7,009,378    228,966,000    235,975,378
- -------------------------------------------------------------------------------------------------------------------------------
MULTILINE RETAIL (5.0%)
Dollar General                               30,530            --        30,530           620,370             --        620,370
Federated Dept Stores                        39,067     1,319,845     1,358,912         2,964,013    100,136,640    103,100,653
JC Penney                                    83,224            --        83,224         4,672,195             --      4,672,195
Kohl's                                       96,668            --        96,668(b)      5,447,242             --      5,447,242
Nordstrom                                        --     4,800,000     4,800,000                --    177,648,000    177,648,000
Target                                       98,138     6,000,000     6,098,138         5,765,608    352,500,000    358,265,608
                                                                                     ------------------------------------------
Total                                                                                  19,469,428    630,284,640    649,754,068
- -------------------------------------------------------------------------------------------------------------------------------
OFFICE ELECTRONICS (0.2%)
Xerox                                       103,982     1,517,773     1,621,755(b)      1,373,602     20,049,781     21,423,383
- -------------------------------------------------------------------------------------------------------------------------------
OIL & GAS (7.0%)
Anadarko Petroleum                          108,326            --       108,326         9,570,602             --      9,570,602
Apache                                           --     3,151,001     3,151,001                --    215,528,468    215,528,468
BP ADR                                       70,751            --        70,751(c)      4,661,076             --      4,661,076
Burlington Resources                         10,437       400,000       410,437           669,116     25,644,000     26,313,116
Chesapeake Energy                                --     1,020,682     1,020,682                --     26,650,007     26,650,007
Chevron                                     293,190            --       293,190        17,007,952             --     17,007,952
ConocoPhillips                              320,951     2,942,107     3,263,058        20,088,323    184,146,477    204,234,800
Devon Energy                                 38,197            --        38,197         2,142,470             --      2,142,470
Exxon Mobil                                 588,282     4,408,270     4,996,552        34,561,568    258,985,863    293,547,431
Marathon Oil                                 32,585            --        32,585         1,901,661             --      1,901,661
Murphy Oil                                       --     1,200,000     1,200,000                --     63,648,000     63,648,000
Newfield Exploration                         52,031            --        52,031(b)      2,210,797             --      2,210,797
Occidental Petroleum                         16,023            --        16,023         1,318,372             --      1,318,372
Royal Dutch Shell Cl A ADR                   21,960            --        21,960(b,c)    1,345,709             --      1,345,709
Suncor Energy                                    --     1,000,000     1,000,000(c)             --     48,900,000     48,900,000
Valero Energy                                24,935            --        24,935         2,064,119             --      2,064,119
                                                                                     ------------------------------------------
Total                                                                                  97,541,765    823,502,815    921,044,580
- -------------------------------------------------------------------------------------------------------------------------------


                   See accompanying notes to combined investments in securities.

12  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                    SHARES        SHARES        SHARES           VALUE(a)       VALUE(a)       VALUE(a)

                                        RIVERSOURCE     GROWTH                       RIVER SOURCE     GROWTH
                                        LARGE CAP       TRENDS      PRO FORMA          LARGE CAP      TRENDS        PRO FORMA
                                       EQUITY FUND    PORTFOLIO      COMBINED         EQUITY FUND    PORTFOLIO       COMBINED
- -------------------------------------  ------------  ------------  ------------      ------------  -------------  -------------
                                                                                                
PAPER & FOREST PRODUCTS (--%)
Bowater                                      50,701            --        50,701      $  1,714,201  $          --  $   1,714,201
Intl Paper                                   75,200            --        75,200         2,376,320             --      2,376,320
Weyerhaeuser                                 24,409            --        24,409         1,683,733             --      1,683,733
                                                                                     ------------------------------------------
Total                                                                                   5,774,254             --      5,774,254
- -------------------------------------------------------------------------------------------------------------------------------
PERSONAL PRODUCTS (0.2%)
Avon Products                               189,783            --       189,783         6,207,802             --      6,207,802
Gillette                                    346,990            --       346,990        18,622,953             --     18,622,953
                                                                                     ------------------------------------------
Total                                                                                  24,830,755             --     24,830,755
- -------------------------------------------------------------------------------------------------------------------------------
PHARMACEUTICALS (7.1%)
Abbott Laboratories                         156,775     2,500,000     2,656,775         7,310,418    116,575,000    123,885,418
AstraZeneca                                  19,021            --        19,021(c)        859,585             --        859,585
Bristol-Myers Squibb                        268,789            --       268,789         6,714,349             --      6,714,349
Eli Lilly & Co                               51,687       600,000       651,687         2,911,012     33,792,000     36,703,012
GlaxoSmithKline ADR                          59,322            --        59,322(c)      2,814,236             --      2,814,236
IVAX                                            200            --           200(b)          5,096             --          5,096
Johnson & Johnson                           281,978     4,544,890     4,826,868        18,035,313    290,691,164    308,726,477
Merck & Co                                  179,853            --       179,853         5,586,234             --      5,586,234
Novartis ADR                                146,528     2,500,000     2,646,528(c)      7,137,379    121,775,000    128,912,379
Pfizer                                    1,128,684     5,394,772     6,523,456        29,910,125    142,961,458    172,871,583
Roche Holding ADR                            32,920            --        32,920(c)      4,464,695             --      4,464,695
Schering-Plough                             259,205     3,200,084     3,459,289         5,396,648     66,625,749     72,022,397
Sepracor                                         --     1,000,000     1,000,000(b)             --     52,350,000     52,350,000
Wyeth                                       141,770            --       141,770         6,485,978             --      6,485,978
                                                                                     ------------------------------------------
Total                                                                                  97,631,068    824,770,371    922,401,439
- -------------------------------------------------------------------------------------------------------------------------------
REAL ESTATE INVESTMENT TRUST (0.1%)
Apartment Investment
& Management Cl A                            31,892            --        31,892         1,403,248             --      1,403,248
Equity Office Properties Trust              100,035            --       100,035         3,546,240             --      3,546,240
HomeBanc                                    360,044            --       360,044         3,261,999             --      3,261,999
Jer Investors Trust                          30,271            --        30,271(b)        559,408             --        559,408
                                                                                     ------------------------------------------
Total                                                                                   8,770,895             --      8,770,895
- -------------------------------------------------------------------------------------------------------------------------------
ROAD & RAIL (--%)
Norfolk Southern                             24,962            --        24,962           928,836             --        928,836
- -------------------------------------------------------------------------------------------------------------------------------
SEMICONDUCTORS &
SEMICONDUCTOR EQUIPMENT (4.3%)
Analog Devices                               72,157            --        72,157         2,828,554             --      2,828,554
Applied Materials                            68,848            --        68,848         1,270,934             --      1,270,934
ASML Holding                                 31,984            --        31,984(b,c)      562,918             --        562,918
ATI Technologies                             42,191            --        42,191(b,c)      531,185             --        531,185
Broadcom Cl A                               108,532            --       108,532(b)      4,641,914             --      4,641,914
Credence Systems                             69,912            --        69,912(b)        761,342             --        761,342
Cypress Semiconductor                       157,828            --       157,828(b)      2,266,410             --      2,266,410
Freescale Semiconductor Cl A                292,496            --       292,496(b)      7,464,498             --      7,464,498
Freescale Semiconductor Cl B                143,448            --       143,448(b)      3,693,786             --      3,693,786
Intel                                       719,479    12,847,325    13,566,804        19,526,660    348,676,401    368,203,061
Linear Technology                            47,007            --        47,007         1,826,692             --      1,826,692
Maxim Integrated Products                    15,453            --        15,453           647,017             --        647,017
MEMC Electronic Materials                   104,056            --       104,056(b)      1,767,911             --      1,767,911
Texas Instruments                           228,088     5,000,000     5,228,088         7,244,075    158,800,000    166,044,075
                                                                                     ------------------------------------------
Total                                                                                  55,033,896    507,476,401    562,510,297
- -------------------------------------------------------------------------------------------------------------------------------
SOFTWARE (3.7%)
Adobe Systems                                 3,883            --         3,883           115,092             --        115,092
Amdocs                                           --       380,295       380,295(b,c)           --     11,290,959     11,290,959
Autodesk                                         --     2,500,000     2,500,000                --     85,475,000     85,475,000
Cadence Design Systems                      118,643            --       118,643(b)      1,908,966             --      1,908,966


See accompanying notes to combined investments in securities.

13  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


COMMON STOCKS (continued)



ISSUER                                  SHARES        SHARES       SHARES            VALUE(a)         VALUE(a)         VALUE(a)

                                      RIVERSOURCE
                                       LARGE CAP      GROWTH                       RIVER SOURCE       GROWTH
                                         EQUITY       TRENDS     PRO FORMA          LARGE CAP         TRENDS          PRO FORMA
                                          FUND      PORTFOLIO     COMBINED         EQUITY FUND       PORTFOLIO        COMBINED
- ------------------------------------  -----------  ------------  ----------      ---------------  ---------------  ---------------
                                                                                                 
SOFTWARE (cont.)
Citrix Systems                              4,510            --       4,510(b)   $       107,473  $            --  $       107,473
Compuware                                  19,746            --      19,746(b)           166,459               --          166,459
Electronic Arts                            39,090            --      39,090(b)         2,251,584               --        2,251,584
Macromedia                                 12,986            --      12,986(b)           521,388               --          521,388
Mercury Interactive                        64,752            --      64,752(b)         2,549,286               --        2,549,286
Microsoft                                 755,127    11,239,975  11,995,102           19,338,802      287,855,759      307,194,561
Novell                                     43,447            --      43,447(b)           264,158               --          264,158
Oracle                                    471,834            --     471,834(b)         6,407,506               --        6,407,506
Siebel Systems                            309,488            --     309,488            2,599,699               --        2,599,699
Symantec                                  147,649     2,880,000   3,027,649(b)         3,243,849       63,273,600       66,517,449
                                                                                 -------------------------------------------------
Total                                                                                 39,474,262      447,895,318      487,369,580
- ----------------------------------------------------------------------------------------------------------------------------------
SPECIALTY RETAIL (1.5%)
AutoZone                                    3,207            --       3,207(b)           312,490               --          312,490
Advance Auto Parts                             --       561,009     561,009(b)                --       38,687,181       38,687,181
Bed Bath & Beyond                          14,246            --      14,246(b)           653,891               --          653,891
Best Buy                                   29,035            --      29,035            2,224,081               --        2,224,081
Circuit City Stores                        12,197            --      12,197              222,595               --          222,595
Gap                                        51,591            --      51,591            1,089,086               --        1,089,086
Home Depot                                162,683            --     162,683            7,078,338               --        7,078,338
Lowe's Companies                           34,159     2,218,498   2,252,657            2,262,009      146,908,937      149,170,946
PETCO Animal Supplies                      61,558            --      61,558(b)         1,715,621               --        1,715,621
Staples                                    36,218            --      36,218              824,684               --          824,684
                                                                                 -------------------------------------------------
Total                                                                                 16,382,795      185,596,118      201,978,913
- ----------------------------------------------------------------------------------------------------------------------------------
TEXTILES, APPAREL &
LUXURY GOODS (--%)
Coach                                      14,525            --      14,525(b)           509,973               --          509,973
Nike Cl B                                  12,580            --      12,580            1,054,204               --        1,054,204
                                                                                 -------------------------------------------------
Total                                                                                  1,564,177               --        1,564,177
- ----------------------------------------------------------------------------------------------------------------------------------
THRIFTS & MORTGAGE FINANCE (0.3%)
BankAtlantic Bancorp Cl A                  23,957            --      23,957              429,789               --          429,789
Countrywide Financial                     352,161            --     352,161           12,677,796               --       12,677,796
Fannie Mae                                195,176            --     195,176           10,902,531               --       10,902,531
Freddie Mac                               149,968            --     149,968            9,489,975               --        9,489,975
Washington Mutual                          36,843            --      36,843            1,565,091               --        1,565,091
                                                                                 -------------------------------------------------
Total                                                                                 35,065,182               --       35,065,182
- ----------------------------------------------------------------------------------------------------------------------------------
TOBACCO (0.9%)
Altria Group                              320,988     1,500,000   1,820,988           21,493,356      100,440,000      121,933,356
- ----------------------------------------------------------------------------------------------------------------------------------
WIRELESS TELECOMMUNICATION
SERVICES (0.3%)
Hutchison Telecommunications Intl ADR     105,422            --     105,422(b,c)       1,796,391               --        1,796,391
Millicom Intl Cellular                     63,718            --      63,718(b,c)       1,353,370               --        1,353,370
NeuStar Cl A                               19,532            --      19,532(b)           546,896               --          546,896
Nextel Communications Cl A                778,974            --     778,974(b)        27,108,296               --       27,108,296
Orascom Telecom GDR                        93,426            --      93,426(c)         4,542,372               --        4,542,372
Turkcell Iletisim Hizmetleri ADR           83,247            --      83,247(c)         1,145,479               --        1,145,479
Vodafone Group ADR                        267,704            --     267,704(c)         6,914,794               --        6,914,794
                                                                                 -------------------------------------------------
Total                                                                                 43,407,598               --       43,407,598
- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL COMMON STOCKS
(Cost: $11,164,245,420)                                                          $ 1,504,302,535  $11,239,290,676  $12,743,593,211
- ----------------------------------------------------------------------------------------------------------------------------------


                   See accompanying notes to combined investments in securities.

14  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


SHORT-TERM SECURITIES (3.4%)(f)



ISSUER                                 EFFECTIVE      AMOUNT       AMOUNT            VALUE(a)         VALUE(a)         VALUE(a)
                                         YIELD        PAYABLE    PAYABLE AT
                                                   AT MATURITY    MATURITY

                                                    RIVERSOURCE    GROWTH          RIVERSOURCE       GROWTH
                                                     LARGE CAP     TRENDS           LARGE CAP        TRENDS           PRO FORMA
                                                    EQUITY FUND   PORTFOLIO        EQUITY FUND      PORTFOLIO          COMBINED
- ------------------------------------  -----------  ------------  ----------      ---------------  ---------------  ---------------
                                                                                                 
U.S. GOVERNMENT AGENCY (0.1%)
Federal Home Loan Bank Disc Nt
   8/19/2005                                 3.21% $ 15,000,000  $       --(g)   $    14,972,001  $            --  $    14,972,001

COMMERCIAL PAPER (3.3%)
Alpine Securitization
   8/4/2005                                  3.27            --  20,000,000(g)                --       19,989,100       19,989,100
Barton Capital
   8/3/2005                                  3.27            --  43,500,000(g)                --       43,480,243       43,480,243
   8/10/2005                                 3.28            --  30,000,000(g)                --       29,967,200       29,967,200
   8/11/2005                                 3.28            --  25,000,000(g)                --       24,970,389       24,970,389
Beta Finance
   8/10/2005                                 3.28            --  20,000,000                   --       19,978,133       19,978,133
CAFCO LLC
   8/1/2005                                  3.30            --  13,300,000(g)                --       13,296,343       13,296,343
Chariot Funding LLC
   8/26/2005                                 3.45    15,000,000          --           14,959,867               --       14,959,867
Citibank Credit Card Dakota Nts
   8/1/2005                                  3.30            --  12,200,000(g)                --       12,196,645       12,196,645
Citigroup Funding
   8/1/2005                                  3.31    19,800,000  24,500,000           19,794,538       24,493,242       44,287,780
FCAR Owner Trust I
   8/4/2005                                  3.27    10,000,000          --            9,994,550               --        9,994,550
HSBC Finance
   8/1/2005                                  3.31            --  30,000,000                   --       29,991,724       29,991,724
Natl Australia Funding
   8/08/2005                                 3.27    10,000,000          --(g)         9,990,917               --        9,990,917
   8/09/2005                                 3.26            --  30,000,000(g)                --       29,970,116       29,970,116
Park Avenue Receivables
   8/25/2005                                 3.42            --  30,000,000(g)                --       29,923,275       29,923,275
Scaldis Capital LLC
   8/15/2005                                 3.36            --  25,000,000(g)                --       24,960,452       24,960,452
Sheffield Receivables
   8/01/2005                                 3.30            --  11,700,000(g)                --       11,696,783       11,696,783
   8/22/2005                                 3.41    20,000,000          --(g)        19,954,666               --       19,954,666
Societe Generale North America
   8/12/2005                                 3.28            --  25,000,000                   --       24,968,111       24,968,111
Windmill Funding
   8/23/2005                                 3.41            --  20,000,000(g)                --       19,952,778       19,952,778
                                                                                 -------------------------------------------------
                                                                                      74,694,538      359,834,534      434,529,072
- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL SHORT-TERM SECURITIES
(Cost: $449,542,440)                                                             $    89,666,539      359,834,534  $   449,501,073
- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES
(PRIOR TO PRO FORMA ADJUSTMENTS)
(Cost: $11,613,787,860)(h)                                                       $ 1,593,969,074  $11,599,125,210  $13,193,094,284
- ----------------------------------------------------------------------------------------------------------------------------------
Pro forma Adjustments(i)                                                                      --          (75,237)         (75,237)
- ----------------------------------------------------------------------------------------------------------------------------------
TOTAL INVESTMENTS IN SECURITIES
(AFTER PRO FORMA ADJUSTMENTS)
(Cost: $11,613,720,309)(i)                                                       $ 1,593,969,074  $11,599,049,973  $13,193,019,047
- ----------------------------------------------------------------------------------------------------------------------------------


15  --   AXP Growth Series, Inc. -- RiverSource Large Cap Equity Fund


NOTES TO COMBINED INVESTMENTS IN SECURITIES

(a)  Securities are valued by procedures described in Note 1 to the financial
     statements in the annual report.
(b)  Non-income producing.
(c)  Foreign security values are stated in U.S. dollars. At July 31, 2005, the
     value of foreign securities represented 3.5% of net assets.
(d)  At July 31, 2005, securities valued at $213,766,821 were held to cover open
     call options written as follows:



ISSUER                                          EXERCISE    EXPIRATION
                                  CONTRACTS      PRICE        DATE        VALUE(a)
- --------------------------------  ----------  ------------  ----------  -----------
                                                            
Alcon                                  3,000        120.00   Aug. 2005  $   232,500
Apple Computer                        13,750         47.50  Sept. 2005      687,500
Biogen Idec                            7,999         35.00   Aug. 2005    3,559,555
Genentech                             10,000         85.00   Aug. 2005    5,050,000
- -----------------------------------------------------------------------------------
Total value                                                             $ 9,529,555
- -----------------------------------------------------------------------------------


(e)  At July 31, 2005, security was partially or fully on loan.
(f)  Cash collateral received from security lending activity is invested in
     short-term securities and represents 2.4% of net assets. 1.0% of net assets
     is the Portfolio's cash equivalent position.
(g)  Commercial paper sold within terms of a private placement memorandum,
     exempt from registration under Section 4(2) of the Securities Act of 1933,
     as amended, and may be sold only to dealers in that program or other
     "accredited investors." This security has been determined to be liquid
     under guidelines established by the Fund's Board of Directors. These
     securities may be resold in transactions exempt from registration, normally
     to qualified institutional buyers. At July 31, 2005, the value of these
     securities amounted to $305,320,908 or 2.3% of net assets.
(h)  At July 31, 2005, the cost of securities for federal income tax purposes
     and the aggregate gross unrealized appreciation and depreciation based on
     that cost was:



                                                        RIVERSOURCE          GROWTH
                                                         LARGE CAP           TRENDS         PRO FORMA       PRO FORMA
                                                        EQUITY FUND        PORTFOLIO       ADJUSTMENTS       COMBINED
                                                      ---------------   ----------------   -----------   ----------------
                                                                                             
Cost of securities for federal income tax purposes:   $ 1,524,155,705   $ 10,140,479,002   $   (67,551)  $ 11,664,567,156

Unrealized appreciation                               $    98,862,905   $  1,673,893,157   $        --   $  1,772,756,062
Unrealized depreciation                                   (29,049,536)      (215,246,949)           --       (244,296,485)
- -------------------------------------------------------------------------------------------------------------------------
Net unrealized appreciation                           $    69,813,369   $  1,458,646,208   $        --   $  1,528,459,577
- -------------------------------------------------------------------------------------------------------------------------


(i)  To reflect the portion of the Growth Trends Portfolio net assets not owned
     by RiverSource New Dimensions Fund. (Cost decreased $67,551).

The Global Industry Classification Standard (GICS) was developed by and is the
exclusive property of Morgan Stanley Capital International Inc. and Standard &
Poor's, a division of The McGraw-Hill Companies, Inc.


                                                             S-6393-20 A (12/05)


                          Statement of Additional Information

                                     Dec. 16, 2005

                              AXP(R) Growth Series, Inc.

                        RiverSource(SM) Disciplined Equity Fund

This Statement of Additional Information ("SAI") consists of this cover page
and incorporates by reference the following described documents, each of which
has been previously filed and accompanies this SAI.


1. RiverSource Disciplined Equity Fund's most recent SAI, dated Nov. 29, 2005.


2. RiverSource Disciplined Equity Fund's most recent annual report, for the
   period ended July 31, 2005.


3. RiverSource Stock Fund's most recent SAI, dated Nov. 29, 2005.

4. RiverSource Stock Fund's most recent annual report, for the period ended
   Sept. 30, 2005.




This SAI is not a prospectus. It should be read in conjunction with the proxy
statement/prospectus, which may be obtained by calling (877) 256-6085 or writing
RiverSource Service Corporation, 70100 Ameriprise Financial Center, Minneapolis,
MN 55474.



RiverSource Disciplined Equity Fund (Buying Fund)

RiverSource Stock Fund (Selling Fund)

Introduction to Proposed Fund Merger

July 31, 2005

The accompanying unaudited pro forma combining statement of assets and
liabilities and the statement of operations reflect the accounts of the two
funds at and for the 12-month period ending July 31, 2005. These statements have
been derived from financial statements prepared for RiverSource Disciplined
Equity Fund and RiverSource Stock Fund as of July 31, 2005. RiverSource
Disciplined Equity Fund invests primarily in equity securities of companies
listed on U.S. exchanges with market capitalizations greater than $5 billion at
the time of purchase. RiverSource Stock Fund invests all of its assets in Equity
Portfolio, a series of Growth and Income Trust, an open-end investment company
that has the same objectives as the Fund. The Portfolio invests primarily in
income-producing equity securities (such as convertible securities and preferred
stocks) and short-term debt instruments (such as commercial paper).

Under the proposed Agreement and Plan of Reorganization, Class A shares of the
RiverSource Stock Fund would be exchanged for Class A shares of the RiverSource
Disciplined Equity Fund. Class B shares of the RiverSource Stock Fund would be
exchanged for Class B shares of the RiverSource Disciplined Equity Fund. Class C
shares of the RiverSource Stock Fund would be exchanged for Class C shares of
the RiverSource Disciplined Equity Fund. Class I shares of the RiverSource Stock
Fund would be exchanged for Class I shares of the RiverSource Disciplined Equity
Fund. Class Y shares of the RiverSource Stock Fund would be exchanged for Class
Y shares of the RiverSource Disciplined Equity Fund.

The pro forma combining statements have been prepared to give effect to the
proposed transaction on the historical operations of the accounting survivior,
RiverSource Disciplined Equity Fund, as if the transaction had occurred at the
beginning of the fiscal year ending July 31, 2005.

- --------------------------------------------------------------------------------
2   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




RiverSource Disciplined Equity Fund (Buying Fund)

RiverSource Stock Fund (Selling Fund)

Pro forma combining

Statement of assets and liabilities
                                                        RiverSource
                                                         Disciplined    RiverSource        Pro forma                    Pro forma
July 31, 2005 (Unaudited)                                Equity Fund    Stock Fund        Adjustments                    Combined
Assets
                                                                                                         
Investments in securities, at cost (Note 2)            $119,896,748   $           -- $ 1,846,110,248(a)              $1,966,006,996
                                                       ------------   -------------- ---------------                 --------------
Investments in securities, at value* (Note 2)          $126,040,421   $           -- $ 2,012,913,955(a)              $2,138,954,376
Investment in Portfolio (Note 2)                                 --    1,992,779,515  (1,992,779,515)(a)                        --
Cash in bank on demand deposit                               63,008               --              --                         63,008
Capital shares receivable                                    43,455          256,603              --                        300,058
Dividends and accrued interest receivable (Note 2)          194,530               --       2,281,794(a)                   2,476,324
Receivable for investment securities sold (Note 2)        5,782,959               --     387,479,818(a)                 393,262,777
Receivable from RiverSource Investments, LLC (Note 2)            --               --         895,413(g)                     895,413
Reclaims receivable (Note 2)                                     --               --         116,418(a)                     116,418
                                                       ------------   -------------- ---------------                 --------------
Total assets                                            132,124,373    1,993,036,118     410,907,883                  2,536,068,374
                                                       ------------   -------------- ---------------                 --------------

Liabilities
Disbursements in excess of cash
  on demand deposit (Note 2)                                     --               --         190,233(a)                     190,233
Capital shares payable                                       10,711           46,713              --                         57,424
Payable for investment securities purchased (Note 2)     12,666,426               --     395,292,092(a)                 407,958,518
Payable upon return of securities loaned (Note 2)                --               --      14,399,570(a)                  14,399,570
Accrued investment management services fee (Note 2)           1,976               --       3,012,191(a),(b)               3,014,167
Accrued distribution fee                                        455           13,667              --                         14,122
Accrued service fee                                              --              981              --                            981
Accrued transfer agency fee                                     141            2,594         196,318(h),(i)                 199,053
Accrued administrative services fee (Note 2)                    165            1,856         437,435(c)                     439,456
Other accrued expenses (Note 2)                              69,384           78,367          35,243(a),(d),(e),(f)         182,994
                                                       ------------   -------------- ---------------                 --------------
Total liabilities                                        12,749,258          144,178     413,563,082                    426,456,518
                                                       ------------   -------------- ---------------                 --------------
Net assets applicable to outstanding capital stock     $119,375,115   $1,992,891,940 $    (2,655,199)                $2,109,611,856
                                                       ============   ============== ===============                 ==============
Represented by
Capital stock -- $.01 par value (Note 3)               $    177,771   $    1,005,753 $     1,965,989                 $    3,149,513
Additional paid-in capital (Note 3)                     109,222,972    1,898,118,891      (1,965,989)                 2,005,375,874
Undistributed (excess of distributions over)
  net investment income (Note 2)                            503,820        1,395,678      (2,655,199)                      (755,701)
Accumulated net realized gain (loss)                      3,326,879      (74,432,089)             --                    (71,105,210)
Unrealized appreciation (depreciation) on investments
   and on translation of assets and liabilities
   in foreign currencies                                  6,143,673      166,803,707              --                    172,947,380
Total -- representing net assets applicable
   to outstanding capital stock                        $119,375,115   $1,992,891,940 $    (2,655,199)                $2,109,611,856
Net assets applicable to
  outstanding shares:               Class A            $ 28,058,336   $1,486,995,734 $   (1,981,175)                 $1,513,072,895
                                    Class B            $  9,287,787   $  120,111,527 $     (160,029)                 $  129,239,285
                                    Class C            $    188,938   $    2,635,680 $       (3,512)                 $    2,821,106
                                    Class I            $ 81,805,703   $   27,195,584 $      (36,234)                 $  108,965,053
                                    Class Y            $     34,351   $  355,953,415 $     (474,249)                 $  355,513,517
Shares outstanding (Note 3):        Class A shares        4,189,337       75,000,985              --                    225,833,301
                                    Class B shares        1,402,057        6,114,383              --                     19,521,619
                                    Class C shares           28,519          134,706              --                        426,127
                                    Class I shares       12,152,084        1,371,437              --                     16,187,649
                                    Class Y shares            5,118       17,953,802              --                     52,982,639
Net asset value per share of
  outstanding capital stock:        Class A            $       6.70   $        19.83 $            --                 $         6.70
                                    Class B            $       6.62   $        19.64 $            --                 $         6.62
                                    Class C            $       6.62   $        19.57 $            --                 $         6.62
                                    Class I            $       6.73   $        19.83 $            --                 $         6.73
                                    Class Y            $       6.71   $        19.83 $            --                 $         6.71
                                                       ------------   -------------- ---------------                 --------------
* Including securities on loan, at value (Note 2)      $         --   $           -- $ 13,841,900(a)                 $   13,841,900
                                                       ------------   -------------- ---------------                 --------------



See accompanying notes to financial statements.

- --------------------------------------------------------------------------------
3   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




RiverSource Disciplined Equity Fund (Buying Fund)

RiverSource Stock Fund (Selling Fund)

Pro forma combining

Statement of operations


                                                                    RiverSource
                                                                     Disciplined    RiverSource     Pro forma    Pro forma
Year ended July 31, 2005 (Unaudited)                                 Equity Fund    Stock Fund     Adjustments    Combined
Investment income
Income:
                                                                                                         
Dividends                                                           $1,295,906    $ 46,394,768  $         --         $ 47,690,674
Interest                                                                                73,221     1,282,770                   --
1,355,991
Fee income from securities lending                                                      90,203            --               90,203
   Less foreign taxes withheld                                              --         (33,646)           --              (33,646)
                                                                    ----------    ------------  ------------         ------------
Total income                                                         1,369,127      47,734,095            --           49,103,222
                                                                    ----------    ------------  ------------         ------------
Expenses:
Expenses allocated from Portfolio (Note 2)                                  --      10,304,529   (10,304,529)(a)              --
Investment management services fee (Note 2)                            408,720              --    12,988,850(a),(b)    13,397,570
Distribution fee
   Class A                                                              44,025       3,890,578            --            3,934,603
   Class B                                                              51,693       1,362,137            --            1,413,830
   Class C                                                               1,420          29,438            --               30,858
Transfer agency fee                                                     40,155       2,294,097       196,673(h),(i)     2,530,925
Incremental transfer agency fee
   Class A                                                               3,114         152,294          (250)(i)          155,158
   Class B                                                               2,060          48,873          (105)(i)           50,828
   Class C                                                                  71             989           --                 1,060
Service fee -- Class Y                                                      30         417,217            --              417,247
Administrative services fees and expenses (Note 2)                      29,441         721,402       437,435(c)         1,188,278
Custodian fees (Note 2)                                                 27,540              --       152,460(a),(d)       180,000
Compensation of board members (Note 2)                                   8,604          11,915        (2,519)(a),(e)       18,000
Printing and postage                                                    37,795         310,306            --              348,101
Registration fees                                                       57,489          48,106            --              105,595
Audit fees (Note 2)                                                     20,500          10,750         3,750(a),(f)        35,000
Other (Note 2)                                                           5,942          32,224        79,518(a)           117,684
                                                                    ----------    ------------  ------------         ------------
Total expenses                                                         738,599      19,634,855     3,551,283           23,924,737
   Expenses waived/reimbursed by RiverSource
   Investments, LLC (Note 2)                                           (23,127)             --      (895,413)(g)         (918,540)
                                                                    ----------    ------------  ------------         ------------
                                                                       715,472      19,634,855     2,655,870           23,006,197
   Earnings credits on cash balances                                    (4,727)        (73,177)         (671)(a)          (78,575)
                                                                    ----------    ------------  ------------         ------------
Total net expenses                                                     710,745      19,561,678     2,655,199           22,927,622
                                                                    ----------    ------------  ------------         ------------
Investment income (loss) -- net                                        658,382      28,172,417    (2,655,199)          26,175,600
                                                                    ----------    ------------  ------------         ------------
Realized and unrealized gain (loss) -- net
Net realized gain (loss) on:
   Security transactions                                             3,680,690     209,199,006            --          212,879,696
   Futures contracts                                                   115,625         877,992            --              993,617
                                                                    ----------    ------------  ------------         ------------
Net realized gain (loss) on investments                              3,796,315     210,076,998            --          213,873,313
Net change in unrealized appreciation (depreciation)
   on investments and on translation of assets and
   liabilities in foreign currencies                                 5,439,579       5,638,974            --           11,078,553
                                                                    ----------    ------------  ------------         ------------
Net gain (loss) on investments and foreign currencies                9,235,894     215,715,972            --          224,951,866
                                                                    ----------    ------------  ------------         ------------
Net increase (decrease) in net assets resulting from operations     $9,894,276    $243,888,389  $ (2,655,199)        $251,127,466
                                                                    ==========    ============  ============         ============



See accompanying notes to financial statements.

- --------------------------------------------------------------------------------
4   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund


RiverSource Disciplined Equity Fund (Buying Fund)

RiverSource Stock Fund (Selling Fund)

Notes to Pro Forma Financial Statements

(Unaudited as to July 31, 2005)

1. BASIS OF COMBINATION

The unaudited pro forma combining statement of assets and liabilities and the
statement of operations reflect the accounts of the two funds at and for the
12-month period ending July 31, 2005. These statements have been derived from
financial statements prepared for the RiverSource Disciplined Equity Fund and
RiverSource Stock Fund as of July 31, 2005.

Each Fund is registered under the Investment Company Act of 1940 (as amended) as
a diversified, open-end management investment company. The primary investments
of each Fund are as follows:

RiverSource Disciplined Equity Fund invests primarily in equity securities of
companies listed on U.S. exchanges with market capitalizations greater than $5
billion at the time of purchase.

RiverSource Stock Fund invests all of its assets in Equity Portfolio, a series
of Growth and Income Trust, an open-end investment company that has the same
objectives as the Fund. The Portfolio invests primarily in income-producing
equity securities (such as convertible securities and preferred stocks) and
short-term debt instruments (such as commercial paper).

The pro forma statements give effect to the proposed transfer of the assets and
liabilities of RiverSource Stock Fund in exchange for Class A, B, C, I and Y
shares of RiverSource Disciplined Equity Fund under U.S. generally accepted
accounting principles.
The pro forma statements also reflect changes needed regarding the change in
structure of RiverSource Stock Fund. Finally, the pro forma statements reflect
estimates for the combined RiverSource Disciplined Equity Fund based on the
increased asset level of the merger and associated economies of scale, adjusted
to reflect current fees.

The pro forma combining statements should be read in conjunction with the
historical financial statements of the funds incorporated by reference in the
Statement of Additional Information.

The pro forma statement of operations give effect to the proposed transaction on
the historical operations of the accounting survivor, RiverSource Disciplined
Equity Fund, as if the transaction had occurred at the beginning of the year
presented.

2. PRO FORMA ADJUSTMENTS

(a)  To reflect adjustments needed regarding the change in structure of
     RiverSource Stock Fund from a feeder fund presentation into a reporting
     format comparable with the accounting survivor.

(b)  To reflect the increase in investment management service fee due to the
     Reorganization. The Performance Incentive Adjustment (PIA) for RiverSource
     Stock Fund was removed and a new PIA adjustment was calculated based on the
     RiverSource Stock Fund average net assets as of July 31, 2005 and the
     RiverSource Disciplined Equity Fund PIA rate.

(c)  To reflect the increase in administrative services fees due to the
     Reorganization and to include the impact of the revised administrative
     services agreement.

(d)  To reflect the decrease in custodian fees due to the Reorganization.

(e)  To adjust for the change in the compensation of board members due to the
     Reorganization.

(f)  To reflect the reduction in audit fees due to the Reorganization.


(g)  To adjust the expense reimbursement to include the impact of the agreement
     by RiverSource Investments, LLC and its affiliates to waive certain fees
     and to absorb certain expenses following the merger.

(h)  To adjust for closed account fees for each RiverSource Stock Fund account
     that will be closed on the system as a result of this merger.

(i)  To reflect the anticipated reduction in the transfer agent fees due to the
     RiverSource Disciplined Equity Fund and RiverSource Stock Fund accounts
     that will be combined as a result of the merger.


- --------------------------------------------------------------------------------
5   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund


3. CAPITAL SHARES


The pro forma net asset value per share assumes the issuance of additional Class
A, Class B, Class C, Class I and Class Y shares of RiverSource Disciplined
Equity Fund if the reorganization were to have taken place on July 31, 2005. The
pro forma number of Class A shares outstanding of 225,833,301 consists of
221,643,964 shares assumed to be issued to Class A shareholders of the
RiverSource Stock Fund, plus 4,189,337 Class A shares of the RiverSource
Disciplined Equity Fund outstanding as of July 31, 2005. The pro forma number of
Class B shares outstanding of 19,521,619 consists of 18,119,562 shares assumed
to be issued to Class B shareholders of the RiverSource Stock Fund, plus
1,402,057 Class B shares of the RiverSource Disciplined Equity Fund outstanding
as of July 31, 2005. The pro forma number of Class C shares outstanding of
426,127 consists of 397,608 shares assumed to be issued to Class C shareholders
of the RiverSource Stock Fund, plus 28,519 Class C shares of the RiverSource
Disciplined Equity Fund outstanding as of July 31, 2005. The pro forma number of
Class I shares outstanding of 16,187,649 consists of 4,035,565 shares assumed to
be issued to Class I shareholders of the RiverSource Stock Fund, plus 12,152,084
Class I shares of the RiverSource Disciplined Equity Fund outstanding as of July
31, 2005. The pro forma number of Class Y shares outstanding of 52,982,639
consists of 52,977,521 shares assumed to be issued to Class Y shareholders of
the RiverSource Stock Fund, plus 5,118 Class Y shares of the RiverSource
Disciplined Equity Fund outstanding as of July 31, 2005.


- --------------------------------------------------------------------------------
6   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund


Combined Investments in Securities

RiverSource Disciplined Equity Fund

July 31, 2005 (Unaudited)

(Percentages represent value of investments compared to net assets)



Common Stocks (98.6%)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Aerospace & Defense (2.6%)
                                                                                                
Boeing                                     --        200,000       200,000                   $--   $13,202,000    $13,202,000
General Dynamics                           --          2,866         2,866                    --       330,135        330,135
Honeywell Intl                             --        220,000       220,000                    --     8,641,600      8,641,600
Lockheed Martin                         3,104        176,732       179,836               193,690    11,028,077     11,221,767
Rockwell Collins                        6,474         55,762        62,236               315,931     2,721,186      3,037,117
United Technologies                    17,742        361,500       379,242               899,519    18,328,049     19,227,568
Total                                                                                  1,409,140    54,251,047     55,660,187

Air Freight & Logistics (0.3%)
FedEx                                   8,070         11,782        19,852               678,607       990,748      1,669,355
United Parcel Service Cl B              8,119         68,175        76,294               592,443     4,974,730      5,567,173
Total                                                                                  1,271,050     5,965,478      7,236,528

Auto Components (0.1%)
Dana                                       --         30,576        30,576                    --       480,349        480,349
Delphi                                     --        111,477       111,477                    --       590,828        590,828
Johnson Controls                        2,710         25,635        28,345               155,662     1,472,474      1,628,136
Total                                                                                    155,662     2,543,651      2,699,313

Automobiles (0.7%)
Ford Motor                             59,497        512,472       571,969               638,998     5,503,949      6,142,947
General Motors                         19,047        151,189       170,236               701,310     5,566,779      6,268,089
Harley-Davidson                         7,703         51,295        58,998               409,723     2,728,381      3,138,104
Total                                                                                  1,750,031    13,799,109     15,549,140

Beverages (1.8%)
Coca-Cola                              54,536        480,104       534,640             2,386,495    21,009,351     23,395,846
Constellation Brands Cl A                  --         74,283        74,283(b)                 --     2,035,354      2,035,354
PepsiCo                                    --        234,777       234,777                    --    12,802,390     12,802,390
Total                                                                                  2,386,495    35,847,095     38,233,590

Biotechnology (0.6%)
Amgen                                      --        150,000       150,000(b)                 --    11,962,500     11,962,500
Genzyme                                    --          9,841         9,841(b)                 --       732,269        732,269
Gilead Sciences                         8,252             --         8,252(b)            369,772            --        369,772
Total                                                                                    369,772    12,694,769     13,064,541

Building Products (0.1%)
Masco                                   5,949         33,875        39,824               201,731     1,148,701      1,350,432

Capital Markets (1.8%)
Bear Stearns Companies                  2,977         13,037        16,014               303,981     1,331,208      1,635,189
Franklin Resources                     11,019         94,915       105,934               890,557     7,671,030      8,561,587
Goldman Sachs Group                        --        150,000       150,000                    --    16,122,000     16,122,000
Janus Capital Group                        --         64,951        64,951                    --       975,564        975,564
Lehman Brothers Holdings                6,573         61,553        68,126               691,019     6,471,067      7,162,086
Merrill Lynch & Co                      3,855         34,591        38,446               226,597     2,033,259      2,259,856
Morgan Stanley                          2,267         11,877        14,144               120,264       630,075        750,339
Total                                                                                  2,232,418    35,234,203     37,466,621


See accompanying notes to combined investments in securities.

- --------------------------------------------------------------------------------
7   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Chemicals (0.5%)
                                                                                                 
Dow Chemical                           11,766        118,658       130,424              $564,180    $5,689,651     $6,253,831
Monsanto                                7,987         68,798        76,785               538,084     4,634,921      5,173,005
Total                                                                                  1,102,264    10,324,572     11,426,836

Commercial Banks (2.4%)
Bank of America                        15,071        292,510       307,581               657,096    12,753,436     13,410,532
Comerica                                3,962         21,570        25,532               242,078     1,317,927      1,560,005
KeyCorp                                 5,983         43,553        49,536               204,858     1,491,255      1,696,113
Natl City                              18,078        172,364       190,442               667,258     6,361,955      7,029,213
PNC Financial Services Group           10,111         98,614       108,725               554,285     5,406,019      5,960,304
Regions Financial                       1,911             --         1,911                64,286            --         64,286
US Bancorp                                 --        220,000       220,000                    --     6,613,200      6,613,200
Wachovia                                2,649         27,465        30,114               133,457     1,383,687      1,517,144
Wells Fargo & Co                           --        220,000       220,000                    --    13,494,800     13,494,800
Total                                                                                  2,523,318    48,822,279     51,345,597

Commercial Services & Supplies (--%)
Equifax                                    --         27,434        27,434                    --       998,598        998,598

Communications Equipment (1.4%)
Cisco Systems                              --      1,000,000     1,000,000(b)                 --    19,150,000     19,150,000
Comverse Technology                     9,884         71,637        81,521(b)            249,966     1,811,700      2,061,666
Motorola                                   --        360,000       360,000                    --     7,624,800      7,624,800
Tellabs                                11,862        102,379       114,241(b)            115,299       995,124      1,110,423
Total                                                                                    365,265    29,581,624     29,946,889

Computers & Peripherals (3.6%)
Apple Computer                         29,129        222,057       251,186(b)          1,242,353     9,470,731     10,713,084
Dell                                       --        360,000       360,000(b)                 --    14,569,200     14,569,200
EMC                                        --        580,000       580,000(b)                 --     7,940,200      7,940,200
Gateway                                29,177        251,317       280,494(b)            116,124     1,000,242      1,116,366
Hewlett-Packard                        21,708        700,000       721,708               534,451    17,233,999     17,768,450
Intl Business Machines                     --        150,000       150,000                    --    12,519,000     12,519,000
Lexmark Intl Cl A                       1,816         15,641        17,457(b)            113,863       980,691      1,094,554
NCR                                    10,017         72,884        82,901(b)            347,690     2,529,804      2,877,494
Network Appliance                      12,591        107,784       120,375(b)            321,196     2,749,570      3,070,766
QLogic                                 19,572        145,178       164,750(b)            607,711     4,507,777      5,115,488
Total                                                                                  3,283,388    73,501,214     76,784,602

Construction & Engineering (--%)
Fluor                                      --         13,516        13,516                    --       862,321        862,321

Consumer Finance (0.8%)
MBNA                                   14,538         79,188        93,726               365,776     1,992,370      2,358,146
Providian Financial                     7,465         52,700        60,165(b)            141,089       996,030      1,137,119
SLM                                     2,933        245,259       248,192               151,020    12,628,386     12,779,406
Total                                                                                    657,885    15,616,786     16,274,671

Distributors (0.1%)
Genuine Parts                           4,854         28,762        33,616               222,265     1,317,012      1,539,277

Diversified Financial Services (2.7%)
CIT Group                               4,009         34,530        38,539               176,957     1,524,154      1,701,111
Citigroup                              65,559        784,686       850,245             2,851,817    34,133,841     36,985,658
iShares MSCI EAFE Index Fund           56,400         37,800        94,200             3,042,216     2,038,932      5,081,148
Moody's                                    --         20,581        20,581                    --       973,687        973,687
Technology Select Sector Index Fund    23,600        587,000       610,600               497,016    12,362,220     12,859,236
Total                                                                                  6,568,006    51,032,834     57,600,840


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
8   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Diversified Telecommunication Services (4.8%)
                                                                                                
AT&T                                   40,392        386,118       426,510              $799,762    $7,645,136     $8,444,898
BellSouth                              84,339        740,435       824,774             2,327,756    20,436,006     22,763,762
SBC Communications                    118,859      1,023,783     1,142,642             2,906,102    25,031,494     27,937,596
Sprint                                 45,198        656,354       701,552             1,215,826    17,655,923     18,871,749
Verizon Communications                 69,594        599,438       669,032             2,382,202    20,518,763     22,900,965
Total                                                                                  9,631,648    91,287,322    100,918,970

Electric Utilities (3.6%)
Allegheny Energy                        7,515         49,289        56,804(b)            214,178     1,404,737      1,618,915
American Electric Power                 8,425         61,522        69,947(b)            326,048     2,380,901      2,706,949
CenterPoint Energy                      9,851         81,337        91,188               135,353     1,117,570      1,252,923
DTE Energy                                 --          7,313         7,313                    --       343,711        343,711
Edison Intl                             4,888         31,102        35,990               199,821     1,271,450      1,471,271
Exelon                                 29,458        253,735       283,193             1,576,591    13,579,897     15,156,488
FPL Group                               5,382         51,979        57,361               232,072     2,241,334      2,473,406
PG&E                                   10,993        108,523       119,516               413,667     4,083,720      4,497,387
PPL                                        --        220,000       220,000                    --    13,547,600     13,547,600
Southern                                   --        360,000       360,000                    --    12,596,400     12,596,400
TECO Energy                             9,536         99,311       108,847               180,803     1,882,937      2,063,740
TXU                                    11,741        181,955       193,696             1,017,240    15,764,582     16,781,822
Xcel Energy                                --         51,961        51,961                    --     1,008,563      1,008,563
Total                                                                                  4,295,773    71,223,402     75,519,175

Electrical Equipment (0.6%)
American Power Conversion               6,587         72,997        79,584               185,161     2,051,946      2,237,107
Rockwell Automation                     7,068        195,320       202,388               364,072    10,060,933     10,425,005
Total                                                                                    549,233    12,112,879     12,662,112

Electronic Equipment & Instruments (0.2%)
Jabil Circuit                           3,704         31,906        35,610(b)            115,528       995,148      1,110,676
Sanminia-SCI                               --        787,345       787,345(b)                 --     3,763,509      3,763,509
Total                                                                                    115,528     4,758,657      4,874,185

Energy Equipment & Services (2.2%)
Baker Hughes                               --        290,000       290,000                    --    16,396,600     16,396,600
Halliburton                            13,539        218,157       231,696               758,861    12,227,700     12,986,561
Noble                                   5,789         46,055        51,844               388,905     3,093,975      3,482,880
Schlumberger                               --         70,000        70,000                    --     5,861,800      5,861,800
Transocean                             13,356        123,396       136,752(b)            753,679     6,963,236      7,716,915
Total                                                                                  1,901,445    44,543,311     46,444,756

Food & Staples Retailing (3.6%)
Albertson's                             9,051         82,337        91,388               192,877     1,754,601      1,947,478
Costco Wholesale                           --        290,000       290,000                    --    13,331,300     13,331,300
CVS                                        --        492,478       492,478                    --    15,281,592     15,281,592
Kroger                                 18,677        183,056       201,733(b)            370,738     3,633,662      4,004,400
Safeway                                14,936        129,805       144,741               362,945     3,154,262      3,517,207
SYSCO                                   4,436         42,579        47,015               159,962     1,535,399      1,695,361
Wal-Mart Stores                        58,504        653,918       712,422             2,887,173    32,270,853     35,158,026
Total                                                                                  3,973,695    70,961,669     74,935,364

Food Products (1.4%)
Archer-Daniels-Midland                 28,840        248,411       277,251               661,590     5,698,548      6,360,138
Hershey                                    --         23,734        23,734                    --     1,515,891      1,515,891
Kellogg                                    --        220,000       220,000                    --     9,968,200      9,968,200
WM Wrigley Jr                              --        152,640       152,640                    --    10,858,810     10,858,810
Total                                                                                    661,590    28,041,449     28,703,039


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
9   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Health Care Equipment & Supplies (2.1%)
                                                                                                
Becton, Dickinson & Co                  3,982         24,737        28,719              $220,483    $1,369,688     $1,590,171
Biomet                                  2,427             --         2,427                92,542            --         92,542
Guidant                                    --         20,378        20,378                    --     1,402,006      1,402,006
Medtronic                              10,087        461,088       471,175               544,093    24,871,087     25,415,180
Stryker                                    --        290,000       290,000                    --    15,686,100     15,686,100
Zimmer Holdings                         2,417             --         2,417(b)            199,064            --        199,064
Total                                                                                  1,056,182    43,328,881     44,385,063

Health Care Providers & Services (5.9%)
Aetna                                  10,729        245,058       255,787               830,425    18,967,489     19,797,914
Cardinal Health                         9,078         78,195        87,273               540,867     4,658,858      5,199,725
Caremark Rx                             6,863         59,112        65,975(b)            305,953     2,635,213      2,941,166
CIGNA                                   9,990         86,047        96,037             1,066,433     9,185,517     10,251,950
Express Scripts                            --         20,594        20,594(b)                 --     1,077,066      1,077,066
HCA                                     9,971         85,883        95,854               491,072     4,229,738      4,720,810
Humana                                  8,427         78,257        86,684(b)            335,816     3,118,541      3,454,357
McKesson                                   --         39,892        39,892                    --     1,795,140      1,795,140
Medco Health Solutions                  2,805         24,159        26,964(b)            135,874     1,170,262      1,306,136
Quest Diagnostics                          --         39,405        39,405                    --     2,023,053      2,023,053
Tenet Healthcare                       11,188         69,745        80,933(b)            135,822       846,704        982,526
UnitedHealth Group                     55,138      1,134,922     1,190,060             2,883,716    59,356,421     62,240,137
WellPoint                              13,851        119,305       133,156(b)            979,820     8,439,636      9,419,456
Total                                                                                  7,705,798   117,503,638    125,209,436

Hotels, Restaurants & Leisure (3.0%)
Carnival Unit                              --        220,000       220,000                    --    11,528,000     11,528,000
Darden Restaurants                      4,418         50,646        55,064               153,305     1,757,416      1,910,721
Harrrah's Entertainment                 8,056        219,387       227,443               634,329    17,274,532     17,908,861
Marriott Intl Cl A                      7,230        343,387       350,617               495,038    23,511,708     24,006,746
Starbucks                               5,346         30,445        35,791(b)            280,932     1,599,885      1,880,817
Starwood Hotels & Resorts
  Worldwide Unit                        6,800         18,082        24,882               430,576     1,144,952      1,575,528
Wendy's Intl                               --         22,198        22,198                    --     1,147,637      1,147,637
Yum! Brands                             6,453         55,583        62,036               337,815     2,909,770      3,247,585
Total                                                                                  2,331,995    60,873,900     63,205,895

Household Durables (1.2%)
Black & Decker                          2,610          4,818         7,428               235,709       435,114        670,823
Centex                                  7,611         73,255        80,866               563,062     5,419,405      5,982,467
DR Horton                              22,231        191,481       213,712               913,249     7,866,039      8,779,288
KB HOME                                 5,316         53,290        58,606               435,434     4,364,984      4,800,418
Pulte Homes                             3,146         29,157        32,303               294,529     2,729,678      3,024,207
Stanley Works                              --          4,742         4,742                    --       232,026        232,026
Whirlpool                               1,247         21,968        23,215                99,735     1,757,001      1,856,736
Total                                                                                  2,541,718    22,804,247     25,345,965

Household Products (1.6%)
Kimberly-Clark                          3,802         38,134        41,936               242,416     2,431,424      2,673,840
Procter & Gamble                           --        580,000       580,000                    --    32,265,400     32,265,400
Total                                                                                    242,416    34,696,824     34,939,240

Industrial Conglomerates (2.7%)
3M                                     14,197        122,286       136,483             1,064,775     9,171,450     10,236,225
General Electric                           --      1,000,000     1,000,000                    --    34,500,000     34,500,000
Textron                                 3,415        166,504       169,919               253,291    12,349,602     12,602,893
Total                                                                                  1,318,066    56,021,052     57,339,118


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
10  --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Insurance (3.3%)
                                                                                                 
ACE                                        --         12,982        12,982(c)                $--      $599,898       $599,898
Allstate                               15,708        354,851       370,559               962,272    21,738,172     22,700,444
Ambac Financial Group                   4,537         43,792        48,329               325,938     3,146,017      3,471,955
Aon                                    11,958         88,882       100,840               304,212     2,261,158      2,565,370
Chubb                                      --         74,009        74,009                    --     6,573,479      6,573,479
Jefferson-Pilot                         2,029         14,239        16,268               101,795       714,371        816,166
Lincoln Natl                            6,281         62,101        68,382               303,372     2,999,478      3,302,850
Loews                                   4,520         38,931        43,451               378,008     3,255,800      3,633,808
Marsh & McLennan Companies              9,979         95,414       105,393               289,092     2,764,144      3,053,236
MBIA                                    5,309         53,750        59,059               322,469     3,264,775      3,587,244
Prudential Financial                   11,757        106,840       118,597               786,543     7,147,596      7,934,139
Safeco                                  1,299         18,055        19,354                71,367       991,942      1,063,309
St. Paul Travelers Companies               --        150,000       150,000                    --     6,603,000      6,603,000
Torchmark                               3,597         22,084        25,681               188,015     1,154,331      1,342,346
UnumProvident                           9,896         76,942        86,838               189,508     1,473,439      1,662,947
Total                                                                                  4,222,591    64,687,600     68,910,191

Internet & Catalog Retail (0.6%)
eBay                                   12,445        315,571       328,016(b)            519,952    13,184,556     13,704,508

Internet Software & Services (0.6%)
Google Cl A                                --         25,000        25,000(b)                 --     7,194,000      7,194,000
Yahoo!                                     --        140,000       140,000(b)                 --     4,667,600      4,667,600
Total                                                                                         --    11,861,600     11,861,600

IT Services (0.6%)
Affiliated Computer Services Cl A       2,305         19,858        22,163(b)            115,181       992,304      1,107,485
Automatic Data Processing               5,141         45,453        50,594               228,311     2,018,568      2,246,879
Computer Sciences                       2,552         21,983        24,535(b)            116,831     1,006,382      1,123,213
Convergys                              11,645        108,755       120,400(b)            169,435     1,582,385      1,751,820
Electronic Data Systems                19,225        139,532       158,757               395,457     2,870,173      3,265,630
Sabre Holdings Cl A                     6,183         53,261        59,444               118,714     1,022,611      1,141,325
SunGard                                 3,167         27,877        31,044(b)            113,664     1,000,506      1,114,170
Unisys                                 17,838        153,647       171,485(b)            115,412       994,096      1,109,508
Total                                                                                  1,373,005    11,487,025     12,860,030

Leisure Equipment & Products (0.3%)
Eastman Kodak                          15,799        115,450       131,249               422,466     3,087,133      3,509,599
Mattel                                  8,419        120,252       128,671               157,014     2,242,700      2,399,714
Total                                                                                    579,480     5,329,833      5,909,313

Machinery (2.2%)
Caterpillar                            13,374        663,574       676,948               720,993    35,773,274     36,494,267
Ingersoll-Rand Cl A                        --         12,923        12,923(c)                 --     1,010,191      1,010,191
ITT Inds                                   --         71,487        71,487                    --     7,606,217      7,606,217
PACCAR                                  4,329         14,299        18,628               312,640     1,032,674      1,345,314
Total                                                                                  1,033,633    45,422,356     46,455,989

Media (0.8%)
Comcast Special Cl A                       --        290,000       290,000(b)                 --     8,700,000      8,700,000
Walt Disney                            13,238        341,048       354,286               339,422     8,744,471      9,083,893
Total                                                                                    339,422    17,444,471     17,783,893

Metals & Mining (1.1%)
Freeport-McMoRan Copper & Gold Cl B     4,687         22,697        27,384               188,792       914,235      1,103,027
Nucor                                   4,197         10,550        14,747               232,724       584,998        817,722
Peabody Energy                             --        150,000       150,000                    --     9,861,000      9,861,000
Phelps Dodge                            3,550         94,853        98,403               377,898    10,097,102     10,475,000
Total                                                                                    799,414    21,457,335     22,256,749


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
11   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Multi-Utilities & Unregulated Power (1.3%)
                                                                                                
AES                                    31,821        316,844       348,665(b)           $510,727    $5,085,346     $5,596,073
CMS Energy                             10,719        111,348       122,067(b)            169,789     1,763,752      1,933,541
Constellation Energy Group                 --         23,442        23,442                    --     1,411,443      1,411,443
Dominion Resources                         --         22,059        22,059                    --     1,629,278      1,629,278
Duke Energy                            24,072        286,053       310,125               711,087     8,450,006      9,161,093
Public Service Enterprise Group         7,731         82,300        90,031               497,103     5,291,890      5,788,993
Sempra Energy                           2,652         35,742        38,394               112,710     1,519,035      1,631,745
Total                                                                                  2,001,416    25,150,750     27,152,166

Multiline Retail (3.2%)
Dollar General                          7,198         81,264        88,462               146,263     1,651,284      1,797,547
Family Dollar Stores                       --         38,890        38,890                    --     1,003,362      1,003,362
Federated Dept Stores                   5,958         51,315        57,273               452,033     3,893,269      4,345,302
Kohl's                                     --        150,000       150,000(b)                 --     8,452,500      8,452,500
May Dept Stores                        12,818        124,726       137,544               526,179     5,120,002      5,646,181
Nordstrom                               9,150        376,390       385,540               338,642    13,930,194     14,268,836
Sears Holdings                          4,466          9,929        14,395(b)            688,791     1,531,411      2,220,202
Target                                     --        510,000       510,000                    --    29,962,501     29,962,501
Total                                                                                  2,151,908    65,544,523     67,696,431

Oil & Gas (9.6%)
Amerada Hess                            2,404          9,921        12,325               283,335     1,169,289      1,452,624
Anadarko Petroleum                      5,403         28,997        34,400               477,355     2,561,885      3,039,240
Apache                                  2,021         20,376        22,397               138,236     1,393,718      1,531,954
BG Group ADR                               --        290,000       290,000(c)                 --    12,084,300     12,084,300
Chevron                                60,101        517,671       577,772             3,486,459    30,030,095     33,516,554
ConocoPhillips                          7,228        200,211       207,439               452,401    12,531,206     12,983,607
Devon Energy                           19,319        147,924       167,243             1,083,603     8,297,057      9,380,660
El Paso                                37,470        227,662       265,132               449,640     2,731,944      3,181,584
EnCana                                     --        600,000       600,000(c)                 --    24,810,000     24,810,000
EOG Resources                           7,649         29,258        36,907               467,354     1,787,664      2,255,018
Exxon Mobil                            92,215      1,234,287     1,326,502             5,417,630    72,514,361     77,931,991
Kerr-McGee                                 --         14,959        14,959                    --     1,199,861      1,199,861
Kinder Morgan                           4,504         38,796        43,300               400,225     3,447,413      3,847,638
Marathon Oil                            2,863         31,607        34,470               167,085     1,844,585      2,011,670
Occidental Petroleum                       --         25,800        25,800                    --     2,122,824      2,122,824
Sunoco                                     --         13,301        13,301                    --     1,672,335      1,672,335
Unocal                                  8,370         72,091        80,461               542,795     4,675,101      5,217,896
Valero Energy                           6,815         47,307        54,122               564,146     3,916,073      4,480,219
Total                                                                                 13,930,264   188,789,711    202,719,975

Pharmaceuticals (7.4%)
Abbott Laboratories                     6,212         72,778        78,990               289,666     3,393,638      3,683,304
Bristo-Myers Squibb                    65,709        565,979       631,688             1,641,411    14,138,155     15,779,566
Johnson & Johnson                      62,672      1,119,822     1,182,494             4,008,500    71,623,815     75,632,315
Merck & Co                             81,218        699,563       780,781             2,522,631    21,728,427     24,251,058
Pfizer                                     --        642,764       642,764                    --    17,033,246     17,033,246
Roche Holding ADR                          --        220,000       220,000(c)                 --    14,995,904     14,995,904
Wyeth                                  10,467         82,097        92,564               478,865     3,755,938      4,234,803
Total                                                                                  8,941,073   146,669,123    155,610,196

Real Estate Investment Trust (0.2%)
Apartment Investment & Management Cl A     --         18,334        18,334                    --       806,696        806,696
Archstone-Smith Trust                   3,635         24,478        28,113               154,488     1,040,315      1,194,803
EquityResidential                          --         25,291        25,291                    --     1,021,756      1,021,756
ProLogis                                3,989         22,920        26,909               181,738     1,044,236      1,225,974
Total                                                                                    336,226     3,913,003      4,249,229


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
12   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares             Value(a)       Value(a)      Value(a)

                                   RiverSource                                        RiverSource
                                    Disciplined      Equity       Pro forma           Disciplined      Equity      Pro forma
                                    Equity Fund     Portfolio      Combined           Equity Fund     Portfolio     Combined
Road & Rail (1.4%)
                                                                                                 
Burlington Northern Santa Fe           16,941        130,240       147,181              $919,049    $7,065,520     $7,984,569
CSX                                     6,339        357,916       364,255               288,678    16,299,495     16,588,173
Norfolk Southern                       15,036         74,244        89,280               559,490     2,762,619      3,322,109
Union Pacific                              --         10,324        10,324                    --       725,880        725,880
Total                                                                                  1,767,217    26,853,514     28,620,731

Semiconductors & Semiconductor Equipment (1.1%)
Advanced Micro Devices                 13,354         96,742       110,096(b)            268,148     1,942,579      2,210,727
Applied Micro Circuits                     --        361,162       361,162(b)                 --     1,087,098      1,087,098
Intel                                      --        614,449       614,449                    --    16,676,145     16,676,145
LSI Logic                              11,706        100,831       112,537(b)            114,251       984,111      1,098,362
NVIDIA                                 11,473         82,546        94,019(b)            310,459     2,233,695      2,544,154
Total                                                                                    692,858    22,923,628     23,616,486

Software (3.4%)
Adobe Systems                          17,128         96,834       113,962               507,674     2,870,160      3,377,834
Autodesk                                9,357         41,982        51,339               319,916     1,435,365      1,755,281
Citrix Systems                             --         41,974        41,974(b)                 --     1,000,240      1,000,240
Compuware                              28,997        301,837       330,834(b)            244,445     2,544,486      2,788,931
Microsoft                              69,193      1,470,039     1,539,232             1,772,033    37,647,699     39,419,732
Oracle                                113,833        867,629       981,462(b)          1,545,852    11,782,402     13,328,254
SAP ADR                                    --        200,000       200,000(c)                 --     8,564,000      8,564,000
Symantec                               11,891         71,785        83,676(b)            261,245     1,577,116      1,838,361
Total                                                                                  4,651,165    67,421,468     72,072,633

Specialty Retail (2.8%)
AutoNation                                 --         46,675        46,675(b)                 --     1,007,713      1,007,713
Best Buy                                4,212        130,053       134,265               322,639     9,962,060     10,284,699
Home Depot                             46,869        743,978       790,847             2,039,271    32,370,483     34,409,754
Lowe's Companies                           --        150,000       150,000                    --     9,933,000      9,933,000
Office Depot                               --         46,048        46,048(b)                 --     1,306,842      1,306,842
Staples                                12,394         87,982       100,376               282,211     2,003,350      2,285,561
Total                                                                                  2,644,121    56,583,448     59,227,569

Textiles, Apparel & Luxury Goods (0.3%)
Coach                                      --         28,636        28,636(b)                 --     1,005,410      1,005,410
Liz Claiborne                              --         15,157        15,157                    --       630,683        630,683
Nike Cl B                               4,448         47,341        51,789               372,742     3,967,175      4,339,917
VF                                         --         16,538        16,538                    --       976,404        976,404
Total                                                                                    372,742     6,579,672      6,952,414

Thrifts & Mortgage Finance (1.8%)
Countrywide Financial                   6,048         55,068        61,116               217,728     1,982,448      2,200,176
Fannie Mae                             31,160        268,396       299,556             1,740,598    14,992,601     16,733,199
Freddie Mac                            10,326         88,943        99,269               653,429     5,628,313      6,281,742
MGIC Investment                         3,110         28,521        31,631               213,284     1,955,970      2,169,254
Washington Mutual                      24,008        206,790       230,798             1,019,860     8,784,439      9,804,299
Total                                                                                  3,844,899    33,343,771     37,188,670

Tobacco (3.6%)
Altria Group                          104,032        971,495     1,075,527             6,965,982    65,051,305     72,017,287
Reynolds American                          --          2,388         2,388                    --       198,944        198,944
UST                                     6,330         66,297        72,627               291,307     3,050,988      3,342,295
Total                                                                                  7,257,289    68,301,237     75,558,526


See accompanying notes to combined investments in securities.
- --------------------------------------------------------------------------------
13   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund




Common Stocks (continued)

Issuer                                Shares         Shares         Shares           Value(a)         Value(a)         Value(a)

                                   RiverSource                                      RiverSource
                                    Disciplined      Equity       Pro forma         Disciplined        Equity         Pro forma
                                    Equity Fund     Portfolio      Combined         Equity Fund       Portfolio        Combined
Trading Companies & Distributors (--%)
                                                                                                
WW Grainger                             2,096             --         2,096             $130,623             $--         $130,623

Wireless Telecommunication Services (0.4%)
Nextel Communications Cl A             21,414        203,961       225,375(b)           745,207       7,097,843        7,843,050

Total Common Stocks
(Cost: $1,907,986,283)                                                             $119,158,282  $1,961,744,991   $2,080,903,273

Short-Term Securities (2.8%)
Issuer                               Effective   Amount payable Amount payable       Value(a)         Value(a)         Value(a)
                                       yield      at maturity    at maturity

                                                  RiverSource                      RiverSource
                                                   Disciplined      Equity          Disciplined        Equity         Pro forma
                                                   Equity Fund     Portfolio        Equity Fund       Portfolio        Combined
U.S. Government Agencies (0.8%)
Federal Home Loan Bank Disc Nt
  8/12/2005                             3.22%            $--   $10,000,000                  $--      $9,987,478       $9,987,478
Federal Natl Mtge Assn Disc Nt
  8/22/2005                             3.28       2,600,000            --            2,594,332              --        2,594,332
  9/7/2005                              3.26       3,300,000            --            3,288,083              --        3,288,083
Total                                                                                 5,882,415       9,987,478       15,869,893

Commercial Paper (2.0%)
Amsterdam Funding
  8/1/2005                              3.30              --    13,200,000                   --      13,196,370       13,196,370
CAFCO
  8/1/2005                              3.30              --    13,100,000                   --      13,096,398       13,096,398
HSBC Finance
  8/1/2005                              3.31       1,000,000            --              999,724              --          999,724
Morgan Stanley
  8/12/2005                             3.33              --     5,000,000                   --       4,993,525        4,993,525
Ranger Funding
  8/16/2005                             3.36              --    10,000,000                   --       9,983,250        9,983,250
Total                                                                                   999,724      41,269,543       42,269,267

Total Short-Term Securities
(Cost: $58,144,483)                                                                  $6,882,139     $51,257,021      $58,139,160

Total Investments in Securities (prior to pro forma adjustments)
(Cost: $1,966,130,766)(d)                                                          $126,040,421  $2,013,002,012   $2,139,042,433

Pro forma Adjustments(e)                                                                     --         (88,057)         (88,057)

Total Investments in Securities (after pro forma adjustments)
(Cost: $1,966,006,996)(e)                                                          $126,040,421  $2,012,913,955   $2,138,954,376


See accompanying notes to combined investments in securities.

- --------------------------------------------------------------------------------
14   --   AXP Growth Series, Inc. -- RiverSource Disciplined Equity Fund


Notes To Combined Investments in Securities

(a)   Securities are valued by procedures described in Note 1 to the financial
      statements in the annual report.

(b)   Non-income producing.

(c)   Foreign security values are stated in U.S. dollars. At July 31, 2005, the
      value of foreign securities represented 2.9% of net assets.

(d)   At July 31, 2005, the approximate cost of securities for federal income
      tax purposes and the approximate aggregate gross unrealized appreciation
      and depreciation based on that cost was:



                                                                 RiverSource
                                                                 Disciplined        Equity      Pro forma      Pro forma
                                                                  Equity Fund      Portfolio    Adjustments     Combined
                                                                                                 
      Cost of securities for federal income tax purposes:        $119,897,000   $1,846,234,000   $(124,000)  $1,966,007,000

      Unrealized appreciation                                    $  7,961,000   $  192,545,000   $  36,000   $  200,542,000
      Unrealized depreciation                                      (1,818,000)     (25,777,000)         --      (27,595,000)
                                                                 ------------   --------------   ---------   --------------
      Net unrealized appreciation                                $  6,143,000   $  166,768,000   $  36,000   $  172,947,000
                                                                 ------------   --------------   ---------   --------------


(e)   To reflect the portion of the Equity Portfolio net assets not owned by
      RiverSource Stock Fund. (Cost decreased $123,770).

The Global Industry Classification Standard (GICS) was developed by and is the
exclusive property of Morgan Stanley Capital International Inc. and Standard &
Poor's, a division of The McGraw-Hill Companies, Inc.

                                                             S-6389-20 A (12/05)


PART C. OTHER INFORMATION


Item 15. Indemnification

The Articles of Incorporation of the registrant provide that the Fund shall
indemnify any person who was or is a party or is threatened to be made a party,
by reason of the fact that she or he is or was a director, officer, employee or
agent of the Fund, or is or was serving at the request of the Fund as a
director, officer, employee or agent of another company, partnership, joint
venture, trust or other enterprise, to any threatened, pending or completed
action, suit or proceeding, wherever brought, and the Fund may purchase
liability insurance and advance legal expenses, all to the fullest extent
permitted by the laws of the State of Minnesota, as now existing or hereafter
amended. The By-laws of the registrant provide that present or former directors
or officers of the Fund made or threatened to be made a party to or involved
(including as a witness) in an actual or threatened action, suit or proceeding
shall be indemnified by the Fund to the full extent authorized by the Minnesota
Business Corporation Act, all as more fully set forth in the By-laws filed as an
exhibit to this registration statement.

Insofar as indemnification for liability arising under the Securities Act of
1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.

Any indemnification hereunder shall not be exclusive of any other rights of
indemnification to which the directors, officers, employees or agents might
otherwise be entitled. No indemnification shall be made in violation of the
Investment Company Act of 1940.


Item 16. Exhibits

(1)(a)   Articles of  Incorporation,  as amended  November 10,  1988,  filed as
         Exhibit 1 to Post-Effective Amendment No. 38 to Registration Statement
         No. 2-38355, are incorporated by reference.

(1)(b)   Articles of Amendment,  dated June 16, 1999, filed electronically as
         Exhibit  (a)(2) to  Post-Effective  Amendment  No. 67 to  Registration
         Statement No. 2-38355, are incorporated by reference.

(1)(c)   Articles of Amendment,  dated November 14, 2002, filed electronically
         as Exhibit (a)(3) to Registrant's  Post-Effective  Amendment No. 74 to
         Registration Statement No. 2-38355, are incorporated by reference.

(2)      By-laws,  as amended January 11, 2001 filed  electronically as
         Exhibit (b) to Post-Effective  Amendment No. 67 to Registration
         Statement No. 2-38355, are incorporated by reference.

(3)      Not applicable.

(4)      Form of Agreement and Plan of Reorganization is included herein as
         Exhibit A to Part A of this Registration Statement.

(5)      Not applicable.

(6)(a)   Investment Management Services Agreement, dated December 1, 2002,
         between  Registrant, on behalf of AXP  Large Cap  Equity  Fund and AXP
         Large Cap Value Fund, and American Express  Financial  Corporation,
         filed electronically as Exhibit (d)(11) to Registrant's Post-Effective
         Amendment  No.  74  to   Registration   Statement  No.   2-38355,   is
         incorporated by reference.

(6)(b)   Investment Management Services Agreement, dated January 9, 2003,
         between Registrant, on behalf of AXP Quantitative Large Cap Equity
         Fund, and American Express Financial Corporation filed electronically
         as Exhibit (d)(9) to Registrant's  Post-Effective  Amendment No. 74 to
         Registration Statement No. 2-38355, is incorporated by reference.

(6)(c)   Investment Management Services Transfer Agreement, dated Sept. 29,
         2005, between Ameriprise Financial, Inc. (fka American Express
         Financial Corporation) and RiverSource Investments, LLC.(1)

(7)      Distribution Agreement dated Oct. 1, 2005, between Registrant and
         Ameriprise Financial Services, Inc.(2)

(8)      All employees are eligible to participate in a profit sharing plan.
         Entry into the plan is Jan. 1 or July 1. The Registrant contributes
         each year an amount up to 15 percent of their annual salaries, the
         maximum deductible amount permitted under Section 404(a) of the
         Internal Revenue Code.


(9)(a)   Custodian Agreement dated Oct. 1, 2005, between Registrant and
         Ameriprise Trust Company.(3)

(9)(b)   Custodian Agreement between American Express Trust Company and The Bank
         of New York dated May 13, 1999, filed electronically as Exhibit (g)(3)
         to AXP Precious Metals Fund, Inc. Post-Effective Amendment No. 33 to
         Registration Statement No. 2-93745, filed on or about May 28, 1999 is
         incorporated by reference.

(9)(c)   Custodian Agreement First Amendment between American Express Trust
         Company and The Bank of New York, dated December 1, 2000, filed
         electronically as Exhibit (g)(4) to AXP Precious Metals Fund, Inc.
         Post-Effective Amendment No. 37 to Registration Statement No. 2-93745,
         filed on or about May 28, 2002 is incorporated by reference.

(9)(d)   Custodian Agreement Second Amendment between American Express Trust
         Company and The Bank of New York, dated June 7, 2001, filed
         electronically as Exhibit (g)(5) to AXP Precious Metals Fund, Inc.
         Post-Effective Amendment No. 37 to Registration Statement No. 2-93745,
         filed on or about May 28, 2002 is incorporated by reference.

(9)(e)   Custodian Agreement Amendment between American Express Trust Company
         and The Bank of New York, dated January 31, 2002, filed electronically
         as Exhibit (g)(6) to AXP Precious Metals Fund, Inc. Post-Effective
         Amendment No. 37 to Registration Statement No. 2-93745, filed on or
         about May 28, 2002 is incorporated by reference.

(9)(f)   Custodian Agreement Amendment between American Express Trust Company
         and The Bank of New York, dated April 29, 2003, filed electronically as
         Exhibit (g)(8) to Registrant's Post-Effective Amendment No. 7 to
         Registration Statement No. 333-57852, filed on or about May 22, 2003,
         is incorporated by reference.

(10)(a)  Plan and Agreement of Distribution (for Class A and Class B Shares),
         dated Oct. 1, 2005, between Registrant and Ameriprise Financial
         Services, Inc.(8)

(10)(b)  Plan and Agreement of Distribution (for Class C Shares), dated Oct. 1,
         2005, between Registrant and Ameriprise Financial Services, Inc.(9)

(10)(c)  Amended 18f-3 Plan, dated as of May 26, 2004, filed electronically on
         or about July 29, 2004 as Exhibit (n) to AXP Discovery Series, Inc.
         Post-Effective Amendment No. 49 to Registration Statement No. 2-72174
         is incorporated by reference.


(11)     Opinion and consent of counsel as to the legality of the securities
         being registered filed electronically on or about Oct. 14, 2005 as
         Exhibit (11) to Registration Statement No. 333-129013 is incorporated
         by reference.

(12)     Tax opinion to be filed by amendment.

(13)(a)  Administrative Services Agreement, dated Oct. 1, 2005, between
         Registrant and Ameriprise Financial, Inc. (4)

(13)(b)  Class Y Shareholder Service Agreement, dated Oct. 1, 2005, between
         Registrant and Ameriprise Financial Services, Inc. (5)

(13)(c)  Transfer Agency Agreement, dated Oct. 1, 2005, between Registrant and
         RiverSource Service Corporation. (6)

(13)(d)  License Agreement, dated Oct. 1, 2005, between Ameriprise Financial
         Inc. and the RiverSource funds.(7)

(13)(e)  License Agreement, dated June 17, 1999, between American Express Funds
         and American  Express Company filed  electronically  on or about Sept.
         23, 1999 as Exhibit  (h)(4) to AXP Stock Fund,  Inc.'s  Post-Effective
         Amendment  No.  98  to   Registration   Statement  No.   2-11358,   is
         incorporated by reference.

(13)(f)  Addendum to Schedule A and Schedule B of the License Agreement between
         the American Express Funds and American Express Company, dated June 23,
         2004, filed electronically on or about June 28, 2004 as Exhibit (h)(2)
         to AXP Variable Portfolio - Select Series, Inc. Pre-Effective Amendment
         No. 1 to Registration Statement No. 333-113780 is incorporated by
         reference.

(13)(g)  License Agreement, dated Oct. 1, 2005, between Ameriprise Financial,
         Inc. and AXP Dimensions Series, Inc., AXP Growth Series, Inc. and AXP
         Variable Portfolio - Investment Series, Inc. filed electronically on or
         about Oct. 27, 2005 as Exhibit (h)(9) to AXP Variable Portfolio -
         Investment Series, Inc. Post-Effective Amendment No. 57 to Registration
         Statement No. 2-73115 is incorporated by reference.

(13)(h)  Master Fee Waiver Agreement, dated Dec. 1, 2005, between Ameriprise
         Financial, Inc., RiverSource Investments, LLC, Ameriprise Financial
         Services, Inc. and RiverSource Funds filed electronically on or about
         Dec. 5, 2005 as Exhibit (13)(g) to AXP Tax-Exempt Series, Inc.
         Pre-Effective Amendment No. 1 to Registration Statement No. 333-128983
         is incorporated by reference.

(14)(a)  Consent of Independent Registered Public Accounting Firm is filed
         electronically herewith.

(14)(b)  Consent of Independent Registered Public Accounting Firm is filed
         electronically herewith.

(15)     Financial Statements: Not applicable.

(16)(a)  Directors'/Trustees' Power of Attorney to sign this Registration
         Statement and its amendments, dated Nov. 11, 2004, filed electronically
         on or about Oct. 14, 2005 as Exhibit (16)(a) to Registration Statement
         No. 333-129013.

(16)(b)  Trustees' Power of Attorney to sign to this Registration Statement and
         its amendments, dated Nov. 11, 2004, filed electronically on or about
         Oct. 14, 2005 as Exhibit (16)(b) to Registration Statement No.
         333-129013.


(17)(a)  Code of Ethics adopted under Rule 17j-1 for Registrant filed
         electronically on or about March 28, 2005 as Exhibit (p)(1) to AXP
         Selected Series, Inc.'s Post-Effective Amendment No. 42 to Registration
         Statement No. 2-93745 is incorporated by reference.

(17)(b)  Code of Ethics adopted under Rule 17j-1 for Registrant's investment
         adviser and principal underwriter, dated Oct. 26, 2005, filed
         electronically on or about Nov. 22, 2005 as Exhibit (p)(2) to AXP
         Equity Series, Inc. Post-Effective Amendment No. 100 to Registration
         Statement No. 2-13188 is incorporated by reference.

(17)(c)  Prospectus, dated Oct. 17, 2005, for RiverSource New Dimensions Fund
         filed electronically as Exhibit (17)(c) to Registration Statement No.
         333-129013.

(17)(d)  Prospectus, dated Nov. 29, 2005, for RiverSource Stock Fund is filed
         electronically herewith.

(17)(e)  Prospectus, dated Oct. 3, 2005, for RiverSource Large Cap Equity Fund
         filed electronically as Exhibit (17)(e) to Registration Statement No.
         333-129013.

(17)(f)  Prospectus, dated Oct. 3, 2005, for RiverSource Disciplined Equity Fund
         filed electronically as Exhibit (17)(f) to Registration Statement No.
         333-129013.

(17)(g)  Statement of Additional Information, dated Nov. 29, 2005, for
         RiverSource New Dimensions Fund, for RiverSource Stock Fund, for
         RiverSource Large Cap Equity Fund and for RiverSource Disciplined
         Equity Fund is filed electronically herewith.

(17)(h)  Annual Report for the period ended July 31, 2005 for RiverSource New
         Dimensions Fund is filed electronically herewith.

(17)(i)  Annual Report for the period ended July 31, 2005 for RiverSource Large
         Cap Equity Fund is filed electronically herewith.

(17)(j)  Annual Report for the period ended July 31, 2005 for RiverSource
         Disciplined Equity Fund is filed electronically herewith.

(17)(k)  Annual Report for the period ended Sept. 30, 2005 for RiverSource Stock
         Fund is filed electronically herewith.

- --------------------

(1)  Incorporated by reference to Exhibit (d)(3) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(2)  Incorporated by reference to Exhibit (e) of AXP Fixed Income Series, Inc.
     Post-Effective Amendment No. 59 to Registration Statement No. 2-51586 filed
     on or about Oct. 27, 2005.

(3)  Incorporated by reference to Exhibit (g)(1) of AXP Variable Portfolio -
     Investment Series, Inc. Post-Effective Amendment No. 57 to Registration
     Statement No. 2-73115 filed on or about Oct. 27, 2005.

(4)  Incorporated by reference to Exhibit (h)(1) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(5)  Incorporated by reference to Exhibit (h)(4) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(6)  Incorporated by reference to Exhibit (h)(6) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(7)  Incorporated by reference to Exhibit (h)(7) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(8)  Incorporated by reference to Exhibit (m)(1) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.

(9)  Incorporated by reference to Exhibit (m)(2) of AXP Fixed Income Series,
     Inc. Post-Effective Amendment No. 59 to Registration Statement No. 2-51586
     filed on or about Oct. 27, 2005.


Item 17. Undertakings.

     (1)  The undersigned  registrant agrees that prior to any public reoffering
          of the securities  registered through the use of a prospectus which is
          a part of this  registration  statement  by any person or party who is
          deemed to be an  underwriter  within the meaning of Rule 145(c) of the
          Securities Act, the reoffering prospectus will contain the information
          called for by the  applicable  registration  form for  reofferings  by
          persons who may be deemed underwriters, in addition to the information
          called for by the other items of the applicable form.

     (2)  The undersigned  registrant agrees that every prospectus that is filed
          under  paragraph  (1) above will be filed as a part of an amendment to
          the registration statement and will not be used until the amendment is
          effective,  and that, in determining any liability under the 1933 Act,
          each post-effective amendment shall be deemed to be a new registration
          statement for the securities offered therein,  and the offering of the
          securities  at that time shall be deemed to be the  initial  bona fide
          offering of them.

     (3)  The  Registrant  undertakes  to file by  Post-Effective  Amendment  an
          Opinion of Counsel  supporting  the tax  consequences  of the proposed
          reorganization within a reasonable time after receipt of such opinion.


                                   SIGNATURES

As required by the Securities Act of 1933, as amended, this Amendment to the
Registration Statement has been signed on behalf of the Registrant, in the city
of Minneapolis, and State of Minnesota on the 5th day of Dec., 2005.

AXP GROWTH SERIES, INC.


By     /s/ Paula R. Meyer
       ---------------------
           Paula R. Meyer, President

By     /s/ Jeffrey P. Fox
       ------------------
           Jeffrey P. Fox, Treasurer

As required by the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities indicated on the 5th
day of Dec., 2005.

Signature                                            Capacity


/s/  Arne H. Carlson*                                Chair of the Board
- ---------------------
     Arne H. Carlson

/s/  Patricia M. Flynn*                              Director
- ------------------------
     Patricia M. Flynn

/s/  Anne P. Jones*                                  Director
- -------------------
     Anne P. Jones

/s/  Stephen R. Lewis, Jr.*                          Director
- -----------------------------
     Stephen R. Lewis, Jr.

/s/  Catherine James Paglia*                         Director
- -----------------------------
     Catherine James Paglia

/s/  Alan K. Simpson*                                Director
- ---------------------
     Alan K. Simpson

/s/  Alison Taunton-Rigby*                           Director
- ---------------------------
     Alison Taunton-Rigby

/s/  William F. Truscott*                            Director
- -------------------------
     William F. Truscott


*  Signed pursuant to Directors' Power of Attorney dated Nov. 11, 2004, filed
   electronically as Exhibit (16)(a) to Registration Statement No. 333-129013,
   by:



/s/  Leslie L. Ogg
- ---------------------
     Leslie L. Ogg


                                   SIGNATURES

As required by the Securities Act of 1933, as amended, this Amendment to the
Registration Statement has been signed on behalf of the Registrant, in the city
of Minneapolis, and State of Minnesota on the 5th day of Dec., 2005.

GROWTH TRUST


By     /s/ Paula R. Meyer
       ---------------------
           Paula R. Meyer, President

By     /s/ Jeffrey P. Fox
       ------------------
           Jeffrey P. Fox, Treasurer

As required by the Securities Act of 1933, this Registration Statement has been
signed below by the following persons in the capacities indicated on the 5th
day of Dec., 2005.


Signature                                            Capacity


/s/  Arne H. Carlson*                                Chair of the Board
- ---------------------
     Arne H. Carlson

/s/  Patricia M. Flynn*                              Director
- ------------------------
     Patricia M. Flynn

/s/  Anne P. Jones*                                  Director
- -------------------
     Anne P. Jones

/s/  Stephen R. Lewis, Jr.*                          Director
- -----------------------------
     Stephen R. Lewis, Jr.

/s/  Catherine James Paglia*                         Director
- -----------------------------
     Catherine James Paglia

/s/  Alan K. Simpson*                                Director
- ---------------------
     Alan K. Simpson

/s/  Alison Taunton-Rigby*                           Director
- ---------------------------
     Alison Taunton-Rigby

/s/  William F. Truscott*                            Director
- -------------------------
     William F. Truscott


*  Signed pursuant to Trustees' Power of Attorney dated Nov. 11, 2004, filed
   electronically as Exhibit (16)(b) to Registration Statement No. 333-129013,
   by:



/s/  Leslie L. Ogg
- ---------------------
     Leslie L. Ogg