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.    )

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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 Pursuant to §240.14a-12

Green Brick Partners, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if Other Than The Registrant)

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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! GREEN BRICK PARTNERS, INC. 2023 Annual Meeting Vote by June 12, 2023 11:59 PM ET GREEN BRICK PARTNERS, INC. C/O BROADRIDGE CORPORATE ISSUER SOLUTIONS P.O. BOX 1342 BRENTWOOD, NY 11717 1 of 2 322,224 148,294 Ricky Campana P.O. Box 123456 Suite 500 51 Mercedes Way Edgewood, NY 11717 30# FLASHID-JOB# You invested in GREEN BRICK PARTNERS, 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 material for the stockholder meeting to be held on June 13, 2023. Get informed before you vote View the Notice & Proxy Statement, Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 30, 2023 . 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. For complete information and to vote, visit www.ProxyVote.com Control # XXXX XXXX XXXX XXXX Smartphone users Vote Virtually at the Meeting* Point your camera here and June 13, 2023 vote without entering a 11:00 AM EDT control number Virtually at: www.virtualshareholdermeeting.com/GRBK2023 *Please check the meeting materials for any special requirements for meeting attendance.

Vote at www.ProxyVote.com Control # XXXX XXXX XXXX XXXX THIS IS NOT A VOTABLE BALLOT SHARE CLASSES REPRESENTED FOR VOTING 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. THE COMPANY NAME INC. - COMMON ASDFGHJKL THE COMPANY NAME INC. - CLASS A THE COMPANY NAME INC. - CLASS B THE COMPANY NAME INC. - CLASS C THE COMPANY NAME INC. - CLASS D THE COMPANY NAME INC. - CLASS E THE COMPANY NAME INC. - CLASS F THE COMPANY NAME INC. - 401 K 123456789.1234 123456789.1234 123456789.1234 123456789.1234 123456789.1234 123456789.1234 123456789.1234 123456789.1234 Voting Items Board Recommends 1. Election of Directors Nominees: 01) Elizabeth K. Blake 04) David Einhorn 07) Lila Manassa Murphy For 02) Harry Brandler 05) Kathleen Olsen 03) James R. Brickman 06) Richard S. Press 2. To approve, on an advisory basis, the compensation of our named executive officers. For 3. To approve, on an advisory basis, the frequency of future advisory votes on executive compensation. Years 4. To ratify the appointment of RSM US LLP as the Independent Registered Public Accounting Firm of the Company to serve for the 2023 fiscal year. For NOTE: Any other matters that may come before the meeting or any adjournments thereof will be voted in the best judgment of the proxies. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Sign up for E-delivery”. FLASHID-JOB#