X0609 4 2026-08-17 true 0000915912 AVALONBAY COMMUNITIES INC AVB 0001862706 Howard Christopher B. false 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 2026-08-17 4 D false 7596.0349 D 0 D Pursuant to the Agreement and Plan of Merger, dated as of May 20, 2026 (the "Merger Agreement"), by and among AvalonBay Communities, Inc., a Maryland corporation ("AVB"), Equity Residential, a Maryland real estate investment trust ("EQR"), ERP Operating Limited Partnership, an Illinois limited partnership, 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. At the effective time of the Merger (the "Effective Time"), each issued and outstanding deferred stock unit 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. 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. This total includes deferred stock units. Christopher B. Howard by Edward M. Schulman pursuant to a Power of Attorney dated as of May 20, 2021 2026-08-17