X0508 4 2024-03-01 0000915912 AVALONBAY COMMUNITIES INC AVB 0001219700 NAUGHTON TIMOTHY J C/O AVALONBAY COMMUNITIES, INC. 4040 WILSON BOULEVARD STE 1000 ARLINGTON VA 22203 true false false false false Common Stock, par value $.01 per share 2024-03-01 4 F false 22200 0 D 55123.6154 D Common Stock, par value $.01 per share 89073 I By GRAT Common Stock, par value $.01 per share 14024 I By Family Trust 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 and deferred stock units, some of which may be subject to vesting requirements. No transaction is reported. The amount of securities owned indirectly following the reported transaction is included for informational purposes only. No transaction is reported. Reflects indirect beneficial ownership by spouse through Family Trust and the reporting person disclaims any beneficial ownership in these shares. Edward M. Schulman, as attorney-in-fact under Power of Attorney dated January 1, 2000 2024-03-05