by reference. On the Closing Date, AvalonBay notified the NYSE of the completion of the Merger and requested that the trading of shares of AvalonBay Common Stock on the NYSE be halted prior to the market open on August 17, 2026. As a result, all shares of AvalonBay Common Stock were removed from trading on the NYSE prior to the market open on August 17, 2026. The NYSE has filed with the SEC a Notification of Removal From Listing and/or Registration on Form 25 in order to delist the AvalonBay…

by reference. At the Effective Time, as contemplated under the Merger Agreement, AvalonBay merged with and into Merger Sub, with Merger Sub continuing as the surviving entity and a direct, wholly owned subsidiary of Vivmark. Additionally, following the consummation of the Merger, Merger Sub merged with and into ERP Operating Partnership, with ERP Operating Partnership surviving.

by reference. At the Effective Time, all shares of AvalonBay Common Stock issued and outstanding immediately prior to the Effective Time (other than shares of AvalonBay Common Stock to be cancelled in accordance with the Merger Agreement) were converted into the right to receive the Merger Consideration and were cancelled and ceased to exist. On the Closing Date, in connection with the Mergers, Merger Sub, ERP Operating Partnership and The Bank of New York Mellon, as trustee, entered into the…

by reference. Treatment of AvalonBay Equity Awards At the effective time of the Merger (the “Effective Time”), each share of common stock, par value $0.01 per share of AvalonBay (“AvalonBay Common Stock”) issued and outstanding immediately prior to the Effective Time (other than certain excluded shares as described in the Merger Agreement) was automatically cancelled and converted into the right to receive 2.793 (the “Exchange Ratio”) common shares of beneficial interest, par value $0.01 per…

CEO — Benjamin W. Schall: The CEO continued in the same role within the surviving entity following a merger, representing an orderly succession rather than a departure.

Other Events. As previously disclosed, on May 20, 2026, AvalonBay Communities, Inc., a Maryland corporation (“AvalonBay”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Equity Residential, a Maryland real estate investment trust (“Equity Residential”), ERP Operating Limited Partnership, an Illinois limited partnership, and Canopy Merger Sub LLC, a Maryland limited liability company and a direct wholly owned subsidiary of Equity Residential. The Merger Agreement pr…

Results of Operations and Financial Condition. On July 22, 2026 , AvalonBay Communities, Inc. issued a press release announcing its second quarter 2026 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Other Events. As previously disclosed, on May 20, 2026, AvalonBay Communities, Inc., a Maryland corporation (“AvalonBay"), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Equity Residential, a Maryland real estate investment trust (“Equity Residential”), ERP Operating Partnership, an Illinois limited partnership, and Canopy Merger Sub LLC, a Maryland limited liability company and a direct wholly owned subsidiary of Equity Residential. The Merger Agreement provides f…

The excerpt is incomplete and does not provide specific details about the event.

Entry into a Material Definitive Agreement. On May 20, 2026, AvalonBay Communities, Inc., a Maryland corporation (“AvalonBay”), Equity Residential, a Maryland real estate investment trust (“Equity Residential”), ERP Operating Limited Partnership, an Illinois limited partnership (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”), entered into an Agreement and Plan of Merger…

Results of Operations and Financial Condition. On April 27, 2026 , AvalonBay Communities, Inc. issued a press release announcing its first quarter 2026 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Results of Operations and Financial Condition. On February 4, 2026 , AvalonBay Communities, Inc. issued a press release announcing its fourth quarter 2025 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Other Events. On December 1, 2025, AvalonBay Communities, Inc. (the “Company”) closed the public offering (the “Offering”) of an aggregate of $400,000,000 principal amount of its 4.350% Senior Notes due 2030 (the “Notes”). The Offering was made pursuant to a prospectus supplement dated November 19, 2025 and a base prospectus dated February 23, 2024 relating to the Company’s registration statement on Form S-3 (File No. 333-277313) (the “Registration Statement”). In connection with the Offering…

Director — Conor C. Flynn: Appointment of Conor C. Flynn as a member of the Board of Directors.

Results of Operations and Financial Condition. On October 29, 2025 , AvalonBay Communities, Inc. issued a press release announcing its third quarter 2025 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Results of Operations and Financial Condition. On July 30, 2025 , AvalonBay Communities, Inc. issued a press release announcing its second quarter 2025 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Other Events. On July 10, 2025, AvalonBay Communities, Inc. (the “Company”) closed the public offering (the “Offering”) of an aggregate of $400,000,000 principal amount of its 5.000% Senior Notes due 2035 (the “Notes”). The Offering was made pursuant to a prospectus supplement dated June 30, 2025 and a base prospectus dated February 23, 2024 relating to the Company’s registration statement on Form S-3 (File No. 333-277313) (the “Registration Statement”). In connection with the Offering of the…

Results of Operations and Financial Condition. On April 30, 2025 , AvalonBay Communities, Inc. issued a press release announcing its first quarter 2025 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth under

Entry into a Material Definitive Agreement. Revolving Credit Facility On April 3, 2025, AvalonBay Communities, Inc. (the “Company”) entered into a $2,500,000,000 Seventh Amended and Restated Revolving Loan Agreement (the “Revolving Credit Facility”) with Bank of America, N.A., as administrative agent, an issuing bank and a bank, JPMorgan Chase Bank, N.A., as an issuing bank, a bank and a syndication agent, Wells Fargo Bank, N.A., as an issuing bank, a bank and a syndication agent, the co-docu…

Results of Operations and Financial Condition. On February 5, 2025 , AvalonBay Communities, Inc. issued a press release announcing its fourth quarter 2024 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Results of Operations and Financial Condition. On November 4, 2024 , AvalonBay Communities, Inc. issued a press release announcing its third quarter 2024 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Other Events. On September 5, 2024, AvalonBay Communities, Inc. (the “ Company ”) entered into an underwriting agreement (the “ Underwriting Agreement ”) with Goldman Sachs & Co. LLC, BofA Securities, Inc., Deutsche Bank Securities Inc. and Morgan Stanley & Co. LLC, in their capacities as underwriters (together, in such capacities, the “ Underwriters ”), Goldman Sachs & Co. LLC, BofA Securities, Inc., Deutsche Bank Securities Inc. and Morgan Stanley & Co. LLC, in their capacities as forward s…

Results of Operations and Financial Condition. On July 31, 2024 , AvalonBay Communities, Inc. issued a press release announcing its second quarter 2024 operating results. That release referred to certain attachments with supplemental information that were available on the Company's website. The full text of the press release, including the supplemental information and attachments referred to within the release, are furnished as Exhibit 99.1 and Exhibit 99.2 hereto.

Other Events. On May 14, 2024, AvalonBay Communities, Inc. (the “Company”) closed the public offering (the “Offering”) of an aggregate of $400,000,000 principal amount of its 5.350% Senior Notes due 2034 (the “Notes”). The Offering was made pursuant to a prospectus supplement dated May 7, 2024 and a base prospectus dated February 23, 2024 relating to the Company’s registration statement on Form S-3 (File No. 333-277313) (the “Registration Statement”). In connection with the Offering of the No…