UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the

Securities Exchange Act of 1934

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Check the appropriate box:

☐ Preliminary Proxy Statement

☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☐ Definitive Proxy Statement

☒ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

FEDERAL REALTY INVESTMENT TRUST

(Name of Registrant as Specified in its Charter)

Not applicable.

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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☒	No fee required.
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☐	Fee computed on table in exhibit required by Item 25 (b) per Exchange Act Rules 14a-6 (i) (1) and D-11.

Important Notice Regarding the Availability of Proxy Materials for the Shareholder Meeting of FEDERAL REALTY INVESTMENT TRUST To Be Held On: May 4, 2022 at 9:00 a.m. virtually at https://web.lumiagm.com/202329683 (password: federal2022) COMPANY NUMBER ACCOUNT NUMBER CONTROL NUMBER JOHN SMITH This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. We encourage you to access and review all of the important information contained in the proxy materials before voting. If you want to receive a paper or e-mail copy of the proxy materials you must request one. There is no charge to you for requesting a copy. To facilitate timely delivery please make the request as instructed below before 04/22/22. Please visit http://www.federalrealty.com/shareholder-meeting, where the following is available for view: • Annual Report/Form 10-K/Notice & Proxy Statement • TO REQUEST MATERIAL: TELEPHONE: 888-Proxy-NA (888-776-9962) 718-921-8562 (for international callers) E-MAIL: info@astfinancial.com WEBSITE: https://us.astfinancial.com/OnlineProxyVoting/ProxyVoting/RequestMaterials TO VOTE: ONLINE: To access your online proxy card, please visit www.voteproxy.com and follow the on-screen instructions or scan the QR code with your smartphone. You may enter your voting instructions at www.voteproxy.com up until 11:59 PM Eastern Time the day before the cut-off or meeting date. DURING THE MEETING: You may virtually attend the meeting and vote your shares through the internet. Go to: https://web.lumiagm.com/202329683 (password: federal2022). TELEPHONE: To vote by telephone, please visit www.voteproxy.com to view the materials and to obtain the toll free number to call. MAIL: You may request a card by following the instructions above. 1. To elect the following nominees as Trustees as set forth in our Proxy Statement: David W. Faeder Elizabeth I. Holland Nicole Y. Lamb-Hale Anthony P. Nader, III Mark S. Ordan Gail P. Steinel Donald C. Wood 2. To approve, on a non-binding, advisory basis,the compensation of our named executive officers. 3. To ratify the appointment of Grant Thornton LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2022. 4. To consider and act upon any other matters properly coming before the meeting or any postponement or adjournment thereof. THE BOARD OF TRUSTEES RECOMMENDS YOU VOTE “FOR” THE ELECTION OF THE NOMINEES AND “FOR” PROPOSALS 2 AND 3. 1234 MAIN STREET APT. 203 NEW YORK, NY 10038 Please note that you cannot use this notice to vote by mail. Instructions on How to Access and Participate in the Annual Shareholder Meeting

Your Vote Counts! FEDERAL REALTY INVESTMENT TRUST 2022 Annual Meeting Vote by May 03, 2022 11 :59 PM ET You invested in FEDERAL REALTY INVESTMENT TRUST and its time to vote! You have the right to vote on proposals being presented at the Annual Meeting. This is an important notice regarding the availability of proxy material for the shareholder meeting to be held on May 04, 2022. Get informed before you vote View the Annual Report/Form 1 0-K/Notice & Proxy Statement online OR you can receive a free paper or email copy of the material(s) by requesting prior to April 20, 2022. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3) send an email to sendmaterial@proxyvote.com. If sending an email, please include your control number (indicated below) in the subject line. Unless requested, you will not otherwise receive a paper or email copy. For complete information and to vote, visit www.ProxyVote.com Control# Smartphone users Point your camera here and vote without entering a control number Vote in Person at the Meeting* May 04, 2022 9:00AM EDT Virtual Shareholder Meeting on the Internet at: https://web.lumiagm.com/202329683 Password: federal2022 *If you choose to vote these shares in person at the meeting, you must request a “legal proxy.” To do so, please follow the instructions at www.ProxyVote.com or request a paper copy of the materials, which will contain the appropriate instructions. Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming shareholder meeting. Please follow the instructions on the reverse side to vote these important matters. FEDERAL REALTY INVESTMENT TRUST 2022 Annual Meeting Vote by May 03, 2022 11:59PMET Voting Items 1 . Election of Trustees Nominees: 1A David W. Faeder 18 Elizabeth I. Holland 1( Nicole Y. Lamb-Hale 1D Anthony P. Nader, Ill 1 E Mark S. Ordan 1 F Gail P. Steinel 1G Donald C. Wood 2. To approve, on a non-binding, advisory basis, the compensation of our named executive officers. 3. To ratify the appointment of Grant Thornton LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2022. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Board Recommends For For For For For For For For For