SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                   Under the Securities Exchange Act of 1934
                               (Amendment No. 35)

                        American Select Portfolio, Inc.
                                     (SLA)
- -------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- -------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                   029570108
- -------------------------------------------------------------------------------
                                 (CUSIP Number)

                               Paul E. Rasmussen
                                3300 IDS Center
                             80 South Eighth Street
                           Minneapolis, MN 55402-4130
- -------------------------------------------------------------------------------
                 (Name, Address, and Telephone Number of Person
               Authorized to Receive Notices and Communications)

                                 March 10, 2010
- -------------------------------------------------------------------------------
            (Date of Event which Requires Filing of this Statement)

If  the filing person has previously filed a statement on Schedule 13G to report
the  acquisition  which  is the subject of this Schedule 13D, and is filing this
schedule  because  of sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check
the following box. [ ]

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7(b) for other
parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for an subsequent amendment containing information which would alter disclosures
provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).





CUSIP No. 029570108
- -------------------------------------------------------------------------------
1  NAME OF REPORTING PERSON
   I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY).

   Sit Investment Associates, Inc. IRS Identification No. 41-1404829
   See Exhibit 1 for schedule of affiliated entities.
- -------------------------------------------------------------------------------
2  CHECK THE APPROPRIATE BOX IF  A  MEMBER  OF A GROUP (See  instructions)
                                                                        (a) [ ]
                                                                        (b) [x]
- -------------------------------------------------------------------------------
3  SEC USE ONLY
- -------------------------------------------------------------------------------
4  SOURCE OF FUNDS*

      00 Cash deposited in investment accounts regarding which Sit Investment
      Associates, Inc. and Sit Investment Fixed Income Advisors, Inc. have
      investment discretion.
- -------------------------------------------------------------------------------
5  CHECK  BOX  IF  DISCLOSURE  OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
   ITEMS 2(d) or 2(e)                                                    [ ]
- -------------------------------------------------------------------------------
6  CITIZENSHIP OR PLACE OF ORGANIZATION

   Incorporated in Minnesota
- -------------------------------------------------------------------------------
                    7.  SOLE VOTING POWER

   NUMBER OF            3,513,874 Shares
   SHARES           -----------------------------------------------------------
   BENEFICIALLY     8.  SHARED VOTING POWER
   OWNED BY
   EACH             -----------------------------------------------------------
   REPORTING        9.  SOLE DISPOSITIVE POWER
   PERSON
   WITH                 3,513,874 Shares
                    -----------------------------------------------------------
                    10. SHARED DISPOSITIVE POWER

- -------------------------------------------------------------------------------
11 AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

   3,513,874 Shares
- -------------------------------------------------------------------------------
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (See
   instructions)                                                         [ ]
- -------------------------------------------------------------------------------
13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

   32.96%
- -------------------------------------------------------------------------------
14 TYPE OF REPORTING PERSON (See instructions)

   IA
- -------------------------------------------------------------------------------




ITEM 1  Security and Issuer

        Common Stock
        American Select Portfolio, Inc.
        c/o Julie Kuck
        U.S. Bancorp Asset Management
        800 Nicollet Mall, BC-MN-H05F
        Minneapolis, MN 55402

ITEM 2  Identity and Background

        a) Sit Investment Associates, Inc.
           Roger  Jerome  Sit,  Chairman, President, CEO and Global CIO
           Michael Clinton Brilley, Sr. VP and Sr. Fixed Income Officer
           Paul E. Rasmussen, Vice President, Secretary
           Frederick Richard Adler, Director
           William E. Frenzel, Director
           Ralph Strangis, Director

        b) Incorporated in the State of Minnesota
           3300 IDS Center, 80 South Eighth Street,
           Minneapolis, MN 55402

        c) Investment Management

        d) None  of  the individuals listed above or Sit Investment Associates,
           Inc.  has  been  convicted  during  the last 5 years of any criminal
           proceeding (excluding traffic violations).

        e) During the last five years none of the individuals listed above or
           Sit Investment Associates, Inc. has been a party to a civil
           proceeding as a result of which any of them is subject to a
           judgment, decree, or final order enjoining future violations of or
           prohibiting or mandating activities subject to, federal or state
           securities laws or finding any violation with respect to such laws.

        f) Each of the individuals listed above is a United States citizen.

ITEM 3  Source and Amount of Funds or Other Considerations

        00 Cash deposited in investment accounts regarding which Sit
        Investment Associates, Inc. and its subsidiaries, Sit Investment
        Fixed Income Advisors, Inc. and Sit Fixed Income Advisors II, LLC
        (together "SIA") have investment discretion.

ITEM 4  Purpose of Transaction

        Shares of the Issuer have been acquired and sold over a period of
        time beginning March 11, 1996, and since the filing of the previous
        amendments to this Schedule 13D, in the ordinary course of business
        as an investment manager for investment purposes.

        The shares of the Issuer have been trading at a significant discount
        to net asset value during the past several years. SIA has determined
        that it is in the best interests of certain of its clients to pursue
        with the Issuer changes in the Issuer's practices or policies that,
        if adopted, would tend to reduce or eliminate the discount at which
        the shares of the Issuer will trade in the future.

        SIA otherwise does not seek to influence or control the management
        of the Issuer. SIA will continue to acquire and sell shares of the
        Issuer on behalf of its clients for investment purposes in the
        ordinary course of business and will vote such additionally acquired
        shares in favor of any proposal submitted to shareholders that
        satisfactorily meets the objectives described above.

        Practices that SIA has discussed with management of the Issuer that,
        if adopted, may reduce or eliminate the discount at which the shares
        of the Issuer will trade in the future include: a.) investment
        strategies that may increase the Issuer's income and maintain an
        investment grade quality rating such as utilizing equity based
        leverage; investing in shares of closed-end funds with high returns
        and investment objectives similar to the Issuer's, including funds
        affiliated with the Issuer; and utilizing repurchase agreements on
        agency mortgage securities; b.) policies to re-purchase the Issuer's
        shares such as authorizing a tender offer; and c.) adoption of a
        distribution policy that provides for including in dividends the
        Issuer's principal repayments in addition to interest and other
        income and capital gains (if any), which, if adopted, would
        constitute a return of capital. SIA has also discussed the ability
        of a closed-end fund to initiate a rights offering.

        SIA sent a letter to the management of the Issuer dated January 28,
        1998 proposing changes to the Issuer's practices (the letter was
        attached as an exhibit to Schedule 13D filed on February 28, 1998).
        On March 18, 1998 the management of the Issuer announced that it
        intended to recommend to the Issuer's board of directors that the
        board authorize new discretionary repurchase offers during December
        1999 and December 2001. The Issuer repurchased 10% of its shares at
        net asset value in December 1999, and did not offer to repurchase
        shares in December 2001.

        On July 7, 2009, SIA sent a letter to management of the Issuer
        requesting the adoption of a distribution policy that would include
        in the periodic distributions to the Issuer's shareholders the
        principal payments received on the Issuer's mortgage related
        investments. SIA requested that if management does not adopt such a
        distribution policy that a proposal to adopt such a policy be
        included in the proxy statement for consideration at the next annual
        meeting by the Issuer's shareholders (the letter was attached as an
        exhibit to Schedule 13D filed on July 9, 2009).





ITEM 5 Interest in Securities of the Issuer

        a) As of March 10, 2010, SIA and its affiliates own 3,513,874 shares
           which represents 32.96% of the outstanding Shares. None of the
           executive officers or directors of SIA owns any other shares.

        Entity                                        Shares        Percentage
        ----------------                             ---------      ----------
        SIA (client accounts)                        3,507,565          32.90%
        Sit Balanced Fund                                6,309           0.06%
        ----------------                             ---------      ----------
        Total Owned by SIA and Affiliated Entities   3,513,874         32.96%

        b) SIA has the sole power to vote and dispose of all of such shares.

        c) Shares have been sold and acquired since November 20, 2009 as
           previously reported. Transactions (all open market transactions)
           effected since November 20, 2009 ranged in price from $10.47 to
           $11.93.

        d) Client accounts have the right to receive all dividends from and any
           proceeds from the sale of the shares. None of the client accounts
           owns more than 5% of the shares outstanding.

        e) Not applicable

ITEM 6  Contracts, Arrangements, Understandings, or Relationships with Respect
        to Securities of the Issuer

        SIA has entered into investment management agreements with each of
        its clients pursuant to which SIA has assumed the responsibility to
        vote on behalf of its clients all shares held by its clients in
        portfolios managed by SIA.

ITEM 7  Materials to be Filed as Exhibits

        Not applicable.

Signature

      After  reasonable  inquiry  and  to the best of my knowledge and belief, I
      certify  that  the  information  set  forth  in  this  statement  is true,
      complete, and correct.

- ------------------
March 11, 2010

Sit Investment Associates, Inc.

By:   /s/ Paul E. Rasmussen
      ---------------------------------------------
      Name/Title: Paul E. Rasmussen, Vice President





                                   EXHIBIT 1

The Reporting Person.
Sit Investment Associates, Inc. is an investment adviser registered under
section 203 of the Investment Advisers Act of 1940 ("Advisers Act").

Sit Investment Associates, Inc.'s two subsidiaries, Sit Investment Fixed Income
Advisors, Inc. and Sit Fixed Income Advisors II, LLC are each registered
investment advisers under section 203 of the Advisers Act.

Sit Investment Associates, Inc. is the investment adviser for twelve no-load,
open-end mutual funds (the "Funds") which are comprised of five registered
investment companies, two of that consist of series funds as listed below. SIA
has the voting power and dispositive power for all securities held in SIA client
accounts and the following twelve mutual funds.

        1)  Sit Mid Cap Growth Fund, Inc.
        2)  Sit Large Cap Growth Fund, Inc.
        3)  Sit U.S. Government Securities Fund, Inc.
        Sit Mutual Funds, Inc.
            4)  Sit International Growth Fund (series A)
            5)  Sit Balanced Fund (series B)
            6)  Sit Developing Markets Growth Fund (series C)
            7)  Sit Small Cap Growth fund (series D)
            8)  Sit Dividend Growth Fund (Series G)
            9)  Sit  Global  Dividend  Growth Fund (Series H)
        Sit Mutual Funds II, Inc.
            10) Sit Tax-Free Income Fund (series A)
            11) Sit Minnesota Tax-Free Income Fund (series B)
            12) Sit High Income Municipal Bond Fund (series D)

Out of the affiliated entities indicated above, only SIA (client accounts), and
Sit Balanced Fund beneficially owned shares of the American Strategic Income
Portfolio Inc. common stock as of March 10, 2010.