FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * YALE UNIVERSITY   2. Issuer Name and Ticker or Trading Symbol ACADIA REALTY TRUST [AKR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) YALE UNIVERSITY INVESTMENTS OFFICE, 55 WHITNEY AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 05/14/2007 (Street) NEW HAVEN, CT 06510-1300 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares of Beneficial Interest 05/14/2007   S   2,500 D $ 27.85 1,822,729 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   3,800 D $ 27.86 1,818,929 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   900 D $ 27.87 1,818,029 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   200 D $ 27.88 1,817,829 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   100 D $ 27.89 1,817,729 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   1,900 D $ 27.9 1,815,829 (1) D   Common Shares of Beneficial Interest 05/14/2007   S   600 D $ 27.91 1,815,229 (1) D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
YALE UNIVERSITY YALE UNIVERSITY INVESTMENTS OFFICE 55 WHITNEY AVENUE NEW HAVEN, CT 06510-1300	X

Signatures

Yale University By: David F. Swensen, Chief Investment Officer		05/15/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Excludes 112,000 Common Shares of Beneficial Interest held by The Yale University Retirement Plan for Staff Employees ("YURPSE"). The Reporting Person has no pecuniary interest in the shares held by YURPSE and disclaims beneficial ownership of all shares held by YURPSE.
Remarks: An employee of Reporting Person serves on the Issuer's Board of Trustees.  Because of his position on the Trust's Board, it is possible that Reporting Person's investment in the Issuer could be viewed as having the purpose or affect of changing or influencing the control of Issuer or that the employee could be viewed as serving on the Board as the deputy of Reporting Person.  In order to avoid any question as to whether Reporting Person's beneficial ownership is being reported on the proper form, Reporting Person has decided to file this Statement of Changes in Beneficial Ownership on Form 4.  This Form 4 shall not be deemed an admission that Reporting Person is required to file beneficial ownership reports under Section 16(a) of the Securities Exchange Act of 1934, as amended, or that the employee is serving on the Board of Trustees of Issuer as the deputy of Reporting Person or in any capacity other than his personal capacity.

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