SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13D (Rule 13d-1) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) (Amendment No. 5) Acadia Realty Trust --------------------------------------------------------------- (Name of Issuer) Common Shares of Beneficial Interest, Par Value $.001 Per Share --------------------------------------------------------------- (Title of Class of Securities) 004239109 --------------------------------------------------------------- (CUSIP Number) COPY TO: Mark A. Barnard Timothy Diggins, Esq. Howard Hughes Medical Institute Ropes & Gray 4000 Jones Bridge Road One International Place Chevy Chase, MD 20815-6789 Boston, MA 02110 (301) 215-8500 (617) 951-7389 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) February 7, 2002 ------------------------------------------------------- (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 Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box: [ ] SCHEDULE 13D ----------------------------- --------------------- CUSIP No. 004239109 Page 2 of 4 Pages ----------------------------- --------------------- -------------------------------------------------------------------------------- 1. NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Howard Hughes Medical Institute -------------------------------------------------------------------------------- 2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (a) [ ] (b) [ ] -------------------------------------------------------------------------------- 3. SEC USE ONLY -------------------------------------------------------------------------------- 4. SOURCE OF FUNDS* WC -------------------------------------------------------------------------------- 5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e) [ ] -------------------------------------------------------------------------------- 6. CITIZENSHIP OR PLACE OF ORGANIZATION Delaware -------------------------------------------------------------------------------- 7. SOLE VOTING POWER NUMBER OF 0 shares SHARES ----------------------------------------------------- BENEFICIALLY 8. SHARED VOTING POWER OWNED BY ---- EACH ----------------------------------------------------- REPORTING 9. SOLE DISPOSITIVE POWER PERSON 0 shares WITH ----------------------------------------------------- 10. SHARED DISPOSITIVE POWER ---- -------------------------------------------------------------------------------- 11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 0 shares -------------------------------------------------------------------------------- 12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) [ ] EXCLUDES CERTAIN SHARES* -------------------------------------------------------------------------------- 13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) 0 % -------------------------------------------------------------------------------- 14. TYPE OF REPORTING PERSON* CO (Non-profit) -------------------------------------------------------------------------------- *SEE INSTRUCTIONS BEFORE FILLING OUT! Page 2 of 4 pages SCHEDULE 13D--Amendment No. 5 Acadia Realty Trust This Amendment No. 5 (the "Amendment") amends the statement on Schedule 13D ("Schedule 13D") filed by Howard Hughes Medical Institute ("HHMI"), a tax-exempt non-profit organization incorporated in the State of Delaware, on September 16, 1998 and as amended by Amendment No. 1 on May 21, 1999, Amendment No. 2 on May 24, 1999, Amendment No. 3 on May 23, 2000 and Amendment No. 4 on January 29, 2002, with respect to the common shares of beneficial interest, par value $.001 per share (the "Common Stock"), of Acadia Realty Trust (the "Trust"), a Maryland real estate investment trust, whose principal executive offices are located at 20 Soundview Marketplace, Port Washington, New York 11050. Except as specifically provided herein, this Amendment does not modify any of the information previously reported on Schedule 13D. Item 5 is hereby amended and restated as follows: Item 5. Interest in Securities of the Trust. ----------------------------------- (a) On February 7, 2002, pursuant to a Letter Agreement dated as of January 22, 2002, HHMI completed the sale of all 2,266,667 shares of Common Stock of the Trust owned by HHMI. As a consequence, as of such date HHMI ceased to be a Reporting Person for the purposes of Rule 13d-1. Page 3 of 4 pages Signature After reasonable inquiry and to the best of its knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct. Dated: February 8, 2002 HOWARD HUGHES MEDICAL INSTITUTE By:/s/ Mark A. Barnard ---------------------------------------------- Name: Mark A. Barnard Title: Managing Director - Private Investments Page 4 of 4 pages