X0508 4 2023-09-01 0 0000915912 AVALONBAY COMMUNITIES INC AVB 0001627576 Brown Terry S. 4040 WILSON BOULEVARD SUITE 1000 ARLINGTON VA 22203 1 0 0 0 0 Common Stock, par value $.01 per share 2023-09-01 4 A 0 186 0.00 A 13948.3683 D Reflects grant of Deferred Stock Units ("Units") under the issuer's Second Amended and Restated 2009 Equity Incentive Plan pursuant to an election previously made by the reporting person to receive Units in lieu of the quarterly cash director's fee otherwise due. The Units will convert into common stock on a one for one bases when the reporting person ceases to be a director of the issuer. The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including Units, which may be subject to vesting requirements. By Edward M. Schulman under Power of Attorney dated as of November 26, 2014 2023-09-06