FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Expires: December 31, 2014 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person * Schall Benjamin (Last) (First) (Middle) C/O AVALONBAY COMMUNITIES, INC. 4040 WILSON BOULEVARD STE 1000 (Street) ARLINGTON VA 22203 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol AVALONBAY COMMUNITIES INC [ AVB ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner X Officer (give title below) Other (specify below) CEO & President
	3. Date of Earliest Transaction (Month/Day/Year) 08/17/2026
	4. If Amendment, Date of 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

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 Stock, par value $.01 per share	08/17/2026		A (1)		78,257	A	$ 0	178,819.7606 (4)	D
Common Stock, par value $.01 per share	08/17/2026		D (2) (3)		178,819.7606	D	$ 0	0	D

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 Securities Underlying Derivative Security (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: 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
Employee Stock Options (Right to Buy)	$ 179.67	08/17/2026		D (5)			21,772	03/01/2027 (6)	02/26/2036	Common Stock	21,772	(5)	0	D
Employee Stock Options (Right to Buy)	$ 221.58	08/17/2026		D (5)			9,473	03/01/2026 (7)	02/26/2035	Common Stock	9,473	(5)	0	D
Employee Stock Options (Right to Buy)	$ 172.11	08/17/2026		D (5)			12,651	03/01/2025 (8)	02/13/2034	Common Stock	12,651	(5)	0	D
Employee Stock Options (Right to Buy)	$ 177.83	08/17/2026		D (5)			10,073	03/01/2024 (9)	02/23/2033	Common Stock	10,073	(5)	0	D
Employee Stock Options (Right to Buy)	$ 236.14	08/17/2026		D (5)			8,304	03/01/2023 (10)	02/17/2032	Common Stock	8,304	(5)	0	D

Explanation of Responses:

1. Represents the deemed acquisition of common stock, par value $0.01 per share ("AVB Common Stock"), of AvalonBay Communities, Inc., a Maryland corporation ("AVB"), pursuant to restricted stock units that were subject to performance-based vesting conditions (each, a "PSU"), which were previously granted to the Reporting Person. The number of PSUs reflects deemed achievement at the greater of actual performance and the target level for each respective award, as determined by the Compensation Committee of AVB effective as of the Effective Time (as defined below), and the PSUs converted into the right to receive restricted shares of Equity Residential, a Maryland real estate investment trust ("EQR") or limited partnership interests in ERP Operating Limited Partnership, an Illinois limited partnership ("ERP OP"), the operating partnership of EQR, in each case, subject to the same time-based vesting conditions that were previously applicable to the PSUs.

2. Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the "Merger Agreement"), by and among AVB, EQR, ERP OP, and Canopy Merger Sub LLC, a Maryland limited liability company ("Merger Sub"), AVB and EQR combined in a merger of equals on August 17, 2026, with AVB merging with and into Merger Sub, with Merger Sub surviving as a wholly owned subsidiary of EQR (the "Merger"). In connection with the Merger, EQR changed its name to Vivmark Residential.

3. At the effective time of the Merger (the "Effective Time"), each issued and outstanding share of AVB Common Stock held by the Reporting Person was automatically converted into the right to receive 2.793 (the "Exchange Ratio") common shares of beneficial interest, $0.01 par value per share ("EQR Common Shares"), of EQR, plus the right to receive cash in lieu of fractional EQR Common Shares, if any, into which such AVB Common Stock would have been converted. On August 14, 2026, the closing price of AVB Common Stock was $184.06 per share and the closing price of EQR Common Shares was $65.97 per share.

4. This total includes shares of AVB Common Stock, restricted shares, PSUs deemed to have been earned as of the Effective Time and shares acquired through AVB's Employee Stock Purchase Plan.

5. Pursuant to the Merger Agreement, effective as of the Effective Time, the Reporting Person's options to acquire AVB Common Stock that were outstanding at the Effective Time were converted into the right to receive options to acquire EQR Common Shares, where the number of EQR Common Shares subject to such converted option is equal to (i) the number of shares of AVB Common Stock subject to the corresponding AVB option award immediately prior to the Effective Time multiplied by (ii) the Exchange Ratio (rounded down to the nearest whole number of shares), and the exercise price of each converted option award is equal to (A) the exercise price of the corresponding AVB option award immediately prior to the Effective Time divided by (B) the Exchange Ratio (rounded up to the nearest whole cent).

6. These options vest in three equal annual installments, with the first installment vesting on 3/1/2027.

7. These options vest in three equal annual installments, with the first installment having vested on 3/1/2026.

8. These options vest in three equal annual installments, with the first installment having vested on 3/1/2025.

9. These options vest in three equal annual installments, with the first installment having vested on 3/1/2024.

10. These options vest in three equal annual installments, with the first installment having vested on 3/1/2023.

	Edward M. Schulman, as attorney-in-fact under Power of Attorney dated January 19, 2021	08/17/2026
	** Signature of Reporting Person	Date
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