No Offer or Solicitation
This communication is for informational purposes only and is not intended to, and shall not, constitute an offer to sell or the solicitation of an offer to
sell or the solicitation of an offer to buy any securities or a solicitation of any vote or approval, nor shall there be any offer, solicitation or sale of securities in any jurisdiction in which such offer, solicitation, or sale would be unlawful
prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act.
Important Additional Information and Where to Find It
In
connection with the proposed transaction between Equity Residential and AvalonBay, Equity Residential intends to file with the SEC a registration statement on Form S-4 (the “Registration
Statement”) that will include a joint proxy statement of Equity Residential and AvalonBay that also constitutes a prospectus of Equity Residential (the “Joint Proxy Statement/Prospectus”). A definitive Joint Proxy
Statement/Prospectus will be mailed to Equity Residential’s shareholders and AvalonBay’s stockholders seeking their respective 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
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