UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Van Kampen Income Trust (VIN) ------------------------------------------------------------------------ (Name of Issuer) Common Stock ------------------------------------------------------------------------ (Title of Class of Securities) 920957107 ------------------------------------------------------------------------ (CUSIP Number) December 31, 2004 ------------------------------------------------------------------------ (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [X] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) * 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 any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in 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. 920957107 13G Page 2 of 6 Pages ----------------------------- ------------------------------ ------------------------------------------------------------------------- 1 NAME OF REPORTING PERSON I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Sit Investment Associates, Inc. 41-1404829 --------------------------------------------------------------------------- 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) |___| (b) |_X_| --------------------------------------------------------------------------- 3 SEC USE ONLY --------------------------------------------------------------------------- 4 CITIZENSHIP OR PLACE OF ORGANIZATION State of Minnesota --------------------------------------------------------------------------- 5 SOLE VOTING POWER 1,102,200 NUMBER OF ------------------------------------------------------- SHARES 6 SHARED VOTING POWER BENEFICIALLY -0- OWNED BY ------------------------------------------------------- EACH 7 SOLE DISPOSITIVE POWER REPORTING 1,102,200 PERSON ------------------------------------------------------- WITH 8 SHARED DISPOSITIVE POWER -0- --------------------------------------------------------------------------- 9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,102,200 -------------------------------------------------------------------------- 10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) Not Applicable --------------------------------------------------------------------------- 11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 7.17% --------------------------------------------------------------------------- 12 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) Sit Investment Associates, Inc. (client accounts) IA -------------------------------------------------------------------------- ------------------------------ -------------------------- CUSIP No. 920957107 13G Page 3 of 6 Pages ------------------------------ -------------------------- ITEM 1 (a) Name of Issuer: Van Kampen Income Trust ITEM 1 (b) Address of Issuer's Principal Executive Offices: Van Kampen Investments Inc. 1221 Avenue of the Americas New York, NY 10020 ITEM 2 (a) Name of Person Filing: Sit Investment Associates, Inc. Sit Investment Associates, Inc. ("SIA") is an Investment Adviser registered under section 203 of the Investment Advisers Act of 1940. SIA has four subsidiaries, each of which are registered Investment Advisers: 1. Sit Investment Fixed Income Advisors ("SIFIA") 41-1845054 2. Sit/Kim International Investment Associates, Inc. ("SKI") 36-3627319 3. Sit Fixed Income Advisors II, LLC 41-1894024 4. Sit/Kim International Investment Associates II, LLC ("SKI II") 41-1918565 SIA is the Investment Advisor for fourteen mutual funds (the "Funds") which are comprised of six registered investment companies, two of which consist of series funds as listed below, and one Delaware statutory trust which consists of one series fund as listed below. SIA has the voting power and dispositive power for all securities owned by SIA and the following fourteen mutual funds. 1) Sit Mid Cap Growth Fund, Inc. 2) Sit Large Cap Growth Fund, Inc. 3) Sit U.S. Government Securities Fund, Inc. 4) Sit Money Market Fund, Inc. Sit Mutual Funds, Inc. 5) Sit International Growth Fund (series A) 6) Sit Balanced Fund (series B) 7) Sit Developing Markets Growth Fund (series C) 8) Sit Small Cap Growth fund (series D) 9) Sit Science and Technology Growth Fund (series E) 10) Sit Dividend Growth Fund (series G) Sit Mutual Funds II, Inc. 11) Sit Tax-Free Income Fund (series A) 12) Sit Minnesota Tax-Free Income Fund (series B) 13) Sit Bond Fund (series C) Sit Mutual Funds Trust 14) Sit Florida Tax-Free Income Fund (series A) Of the affiliated entities indicated above, only SIA and its affiliates (client accounts) beneficially owned shares of the Issuer common stock as of December 31, 2004. ------------------------------ -------------------------- CUSIP No. 920957107 13G Page 4 of 6 Pages ------------------------------ -------------------------- ITEM 2 (b) Address of Principal Business Office or, if none, Residence: 3300 IDS Center 80 South Eighth Street Minneapolis, MN 55402 ITEM 2 (c) Citizenship: Minnesota Corporation ITEM 2 (d) Title of Class of Securities: Common Stock ITEM 2 (e) CUSIP Number: 920957107 ITEM 3 (e) (a) [ ] Broker or Dealer registered under Section 15 of the Act (b) [ ] Bank as defined in section 3(a)(6) of the Act (c) [ ] Insurance Company as defined in section 3(a)(19) of the Act (d) [ ] Investment company registered under section 8 of the Investment Company Act (e) [ X ] Investment Adviser registered under section 203 of the Investment Advisers Act of 1940. (f) [ ] Employee Benefit Plan, Pension Fund which is subject to the provisions of the Employee Retirement Income Security Act of 1974 or Endowment Fund: see section 240.13d-1(b)(1)(ii)(F) (g) [ ] Parent Holding Company, in accordance with section 240.13d- 1(b)(ii)(G) (Note: see Item 7) (h) [ ] Group, in accordance with section 240.13d-1(b)(1)(ii)(H) ITEM 4 Ownership (a) Amount Beneficially Owned: Number of shares beneficially owned by each reporting person with sole voting power; and aggregate amount beneficially owned by each reporting person: SIA and Affiliates Ownership as of 12/31/04: Shares SIA (client accounts) 1,102,200 Total Shares Owned By SIA and Affiliated Entities 1,102,200 ------------------------------ -------------------------- CUSIP No. 920957107 13G Page 5 of 6 Pages ------------------------------ --------------------------- (b) Percent of Class: Outstanding as of 12/31/04: 15,372,000 SIA and Affiliates Ownership @ 12/31/04: % Owned SIA (client accounts) 7.17% Total Shares Owned By SIA and Affiliated Entities 7.17% (c) Number of shares as to which such person has: (i) Sole power to vote or direct the vote: 1,102,200 (ii) Shared power to vote or to direct the vote: 0 (iii) Sole power to dispose or to direct the disposition of: 1,102,200 (iv) Shared power to dispose or to direct the disposition of: 0 ITEM 5 Ownership of Five Percent or Less of a Class: If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following [ ]. ITEM 6 Ownership of More than Five Percent on Behalf of Another Person: N/A ITEM 7 Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company: N/A ITEM 8 Identification and Classification of Members of the Group: N/A ITEM 9 Notice of Dissolution of Group: N/A ------------------------------ --------------------------- CUSIP No. 920957107 13G Page 6 of 6 Pages ------------------------------ --------------------------- ITEM 10 Certification By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired in connection with or as a participant in any transaction having such purposes of effect. 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. SIT INVESTMENT ASSOCIATES, INC. Date: January 27, 2005 By: /s/ Paul E. Rasmussen Title: Vice President