approval of the proposed transaction and other related matters. Each of Equity Residential and AvalonBay may also file other relevant documents with the SEC regarding the proposed transaction.
This communication is not a substitute for the Registration Statement, Joint Proxy Statement/Prospectus or any other document that Equity Residential or AvalonBay (as applicable) may file with the SEC in connection with the proposed transaction.
BEFORE MAKING ANY VOTING OR INVESTMENT DECISION, INVESTORS AND SECURITY HOLDERS OF EQUITY RESIDENTIAL AND AVALONBAY ARE URGED TO READ CAREFULLY AND IN THEIR ENTIRETY THE REGISTRATION STATEMENT, THE JOINT PROXY STATEMENT/PROSPECTUS AND ANY OTHER
RELEVANT DOCUMENTS THAT ARE FILED OR WILL BE FILED WITH THE SEC, AS WELL AS ANY AMENDMENTS OR SUPPLEMENTS TO THESE DOCUMENTS WHEN THEY BECOME AVAILABLE WITH THE SEC BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION AND
RELATED MATTERS. Investors and security holders will be able to obtain free copies of the Registration Statement and the Joint Proxy Statement/Prospectus (when they become available) and other documents filed with the SEC by Equity Residential and
AvalonBay, which contain important information, through the website maintained by the SEC at www.sec.gov. The documents filed by Equity Residential with the SEC may be obtained free of charge by accessing “Filings – SEC Filings” in
the “Investor” section of Equity Residential’s website at www.equityapartments.com, by writing to Equity Residential – Investor Relations, Two North Riverside Plaza, Suite 500, Chicago, Illinois 60606, by telephone at 1-888-879-6356 or by email at investorrelations@eqr.com. The documents filed by AvalonBay with the SEC may be obtained free of charge
by accessing the “Investors” section of AvalonBay’s website at www.avalonbay.com or by writing to AvalonBay, 4040 Wilson Blvd., Suite 1000, Arlington, Virginia 22203, Attention: Corporate Secretary (Legal Department) or by email at
investor_relations@avalonbay.com.
Participants in the Solicitation
Equity Residential, AvalonBay, and certain of their respective trustees, directors and executive officers may be deemed to be participants in the solicitation
of proxies from Equity Residential’s and AvalonBay’s shareholders in respect of the proposed transaction. Information about the directors and executive officers of AvalonBay, including a description of their direct or indirect interests,
by security holdings or otherwise, is set forth in AvalonBay’s proxy statement for its 2026 Annual Meeting of Stockholders under the headings “Director Nominees,” “Transactions with Related Persons, Promoters and Certain
Control Persons,” “Director Compensation,” “Director Compensation Table,” “Compensation Discussion and Analysis,” “Executive Compensation Tables” and “Officers, Stock Ownership and Other
Information,” which was filed with the SEC on April 6, 2026, and in AvalonBay’s Annual
Report on Form 10-K for the fiscal year ended December
31, 2025, which was filed with the SEC on February 27, 2026. Information about the trustees and executive
officers of Equity Residential, including a description of their direct or indirect interests, by security holdings or otherwise, is set forth in Equity Residential’s proxy statement for its 2026 Annual Meeting of Shareholders under the
headings “Biographical Information and Qualifications of Trustees,” “Biographical Information of Executives,” “Common Share Ownership of Trustees and Executives,” “Compensation Discussion and
Analysis,” “Executive Compensation” and “Trustee Compensation,” which was filed with the SEC on April 14, 2026, and in Equity Residential’s Annual Report on Form 10-K for the fiscal year ended December
31, 2025, which was filed with the SEC on February 13, 2026. To the extent holdings of Equity
Residential’s securities by its trustees or executive officers have changed since the amounts set forth in Equity Residential’s definitive proxy statement for its 2026 Annual Meeting of Shareholders or the holdings of AvalonBay’s
securities by its directors or executive officers have changed since the amounts set forth in AvalonBay’s definitive proxy statement for its 2026 Annual Meeting of Stockholders, such changes have been or will be reflected on an Initial
Statement of Beneficial Ownership of Securities on Form 3, Statement of Changes in Beneficial Ownership on Form 4, or Annual Statement of Changes in Beneficial Ownership on Form 5, in each case filed with the SEC and available on the SEC’s
website at www.sec.gov. Other information regarding the participants in the proxy solicitations and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the Registration Statement, the Joint
Proxy Statement/Prospectus and other relevant materials to be filed with the SEC regarding the proposed transaction when such materials become available. Investors and security holders should read the Registration Statement and the Joint Proxy
Statement/Prospectus carefully when they become available before making any voting or investment decisions. Investors may obtain free copies of these documents from Equity Residential or AvalonBay using the sources indicated above.