SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                   Under the Securities Exchange Act of 1934
                               (Amendment No. 36)

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

                                  Common Stock
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                         (Title of Class of Securities)

                                   029570108
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                                 (CUSIP Number)

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

                                 April 27, 2010
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            (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
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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.

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2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See instructions)  (a) [ ]
                                                                         (b) [x]
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3   SEC USE ONLY
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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.
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5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
    ITEMS 2(d) or 2(e)                                                       [ ]
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6   CITIZENSHIP OR PLACE OF ORGANIZATION

    Incorporated in Minnesota
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                     7.  SOLE VOTING POWER

    NUMBER OF            3,392,178 Shares
    SHARES           -----------------------------------------------------------
    BENEFICIALLY     8.  SHARED VOTING POWER
    OWNED BY
    EACH             -----------------------------------------------------------
    REPORTING        9.  SOLE DISPOSITIVE POWER
    PERSON
    WITH                 3,392,178 Shares
                    -----------------------------------------------------------
                    10.  SHARED DISPOSITIVE POWER

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11  AGGREGATE AMOUNT BENEFICALLY OWNED BY EACH REPORTING PERSON

    3,392,178 Shares
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12  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
    (See instructions)                                                       [ ]
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13  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

    31.82%
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14   TYPE OF REPORTING PERSON (See instructions)

     IA
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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(the
         letter was attached as an exhibit to Schedule 13D filed on July 9,
         2009). On September 25, 2009, the Issuer announced the adoption of a
         level distribution policy effective with the Issuer's December 2009
         distributions whereby the Issuer will pay a fixed monthly distribution
         to shareholders. The level distribution policy is subject to
         termination at any time.







ITEM 5   Interest in Securities of the Issuer

         a) As of April 27, 2010, SIA and its affiliates own 3,392,178 shares
            which represents 31.82% of the outstanding Shares. None of the
            executive officers or directors of SIA owns any other shares.

         Entity                                       Shares      Percentage
         ----------------                            ---------    ----------
         SIA (client accounts)                       3,385,869      31.76%
         Sit Balanced Fund                               6,309       0.06%
                                                     ---------    ----------
         Total Owned by SIA and Affiliated Entities  3,392,178      31.82%

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

         c) Shares have been sold and acquired since March 11, 2010 as
            previously reported. Transactions (all open market transactions)
            effected since March 11, 2010 ranged in price from $11.58 to $12.49.

         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.

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April 28, 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 April 27, 2010.