Avalonbay Communities (AVB)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-08-17 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: AVALONBAY COMMUNITIES INC (AVB) CIK: 0000915912 --- Reporting Owner --- Name: Lynch Nnenna CIK: 0001862674 Role: Director --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock, par value $.01 per share Date: 2026-08-17 | Code: D (Sale to issuer) Shares: -7,052.0462 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] 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. [F2] 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. [F3] This total includes deferred stock units. [F1] 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. [F2] 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. --- Footnotes (Complete Index) --- F1: 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. F2: 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. F3: This total includes deferred stock units. --- Signature --- /s/ Nnenna Lynch by Edward M. Schulman pursuant to a Power of Attorney dated as of May 20, 2021 (2026-08-17)