Seaport Entertainment Group Inc. — Proxy Solicitation & Information Statement 2025

Apr 23, 2025

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UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Filed by the Registrant ☒

Filed by a Party other than the Registrant ☐

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 under § 240.14a-12

SEAPORT ENTERTAINMENT GROUP INC.

(Name of the Registrant as Specified in its Charter)

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

Payment of Filing Fee (Check all boxes that apply):

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☒	No fee required
☐	Fee paid previously with preliminary materials
☐	Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11

Your Vote Counts! SEAPORT ENTERTAINMENT GROUP INC. 199 WATER STREET, 28TH FLOOR NEW YORK, NY 10038 SEAPORT ENTERTAINMENT GROUP INC. 2025 Annual Meeting Vote by June 8, 2025 11:59 PM ET You invested in SEAPORT ENTERTAINMENT GROUP INC. and it’s 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 materials for the stockholder meeting to be held on June 9, 2025. Vote Virtually at the Meeting June 9, 2025 10:00 AM ET Virtually at: www.virtualshareholdermeeting.com/SEG2025 Please check the meeting materials for any special requirements for meeting attendance. Smartphone users Point your camera here and vote without entering a control number For complete information and to vote, visit www.ProxyVote.com Control # V69041-P31463 Get informed before you vote View the Notice and Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 26, 2025. If you would like to request a copy of the material(s) for this and/or future stockholder 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.

THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Vote at www.ProxyVote.com Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. Voting Items Board Recommends V69042-P31463 1. Election of directors to serve until the Company’s 2026 annual meeting of stockholders and until their successors are duly elected and qualified. For Nominees: 01) Anton D. Nikodemus 02) Michael A. Crawford 03) Monica S. Digilio 04) David Z. Hirsh 05) Anthony F. Massaro 2. Ratification of the appointment of KPMG LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025. For Note: Such other business as may properly come before the meeting or any postponement or adjournment thereof.