X0508 4 2026-03-01 0000915912 AVALONBAY COMMUNITIES INC AVB 0001544531 Schall Benjamin C/O AVALONBAY COMMUNITIES, INC. 4040 WILSON BOULEVARD STE 1000 ARLINGTON VA 22203 true true false false CEO & President false Common Stock, par value $.01 per share 2026-03-01 4 F false 15766 177.23 D 102914.2339 D Reflects withholding of shares by the Company to cover tax withholding obligations on the vesting of restricted stock and performance share unit awards under the Company's Second Amended and Restated 2009 Equity Incentive Plan. The amount of securities owned following the reported transaction reflects direct ownership of all shares of common stock, including restricted shares. Edward M. Schulman, as attorney-in-fact under Power of Attorney dated January 19, 2021 2026-03-03