VMRK: Material agreement · Leadership change · Company disclosure · Other company developments

Item 1.01 Entry into a Material Definitive Agreement. On May 20, 2026, Equity Residential, a Maryland real estate investment trust (“Equity Residential”), and ERP Operating Limited Partnership, an Illinois limited partnership (the “ERP Operating Partnership”), entered into an Agreement and Plan of Merger (the “Merger Agreement”), by and among AvalonBay Communities, Inc., a Maryland corporation (“AvalonBay”), Equity Residential, the ERP Operating Partnership and Canopy Merger Sub LLC, a Maryland limited liability company and a direct wholly owned subsidiary of Equity Residential (“Merger Sub”). Capitalized terms used but not defined herein have the meanings ascribed to them in the Merger Agreement. The Merger Agreement provides for the combination of Equity Residential and AvalonBay in an all-stock merger-of-equals transaction upon the terms and subject to the conditions set forth in the Merger Agreement. The combined company will operate under a new name to be announced prior to the closing of the Transactions (as defined below) (the “closing”). The Board of Trustees of Equity Residential (the “Equity Residential Board”) and the Board of Directors of AvalonBay (the “AvalonBay Board”) have each unanimously approved the Merger Agreement and the Transactions. Upon the terms and subject to the conditions of the Merger Agreement, (i) on the closing date but prior to the Effective Time (as defined below), AvalonBay will contribute certain assets set forth in an exhibit to the Merger Agreement (the “Asset Contribution”) in exchange for units of partnership interest in the ERP Operating Partnership (“OP Units”) that have, in the aggregate, a value equal to the fair market value of such contributed assets and (ii) following the Asset Contribution and at the Effective Time, Avalo