Additional Proxy Soliciting Materials (Form DEFA14A)

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

Filed by the Registrant ☒        Filed by a Party other than the Registrant ☐

Check the appropriate box:

WYNN RESORTS, LIMITED

(Name of Registrant as Specified in Its Charter)

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

Payment of Filing Fee (Check the appropriate box):

Your Vote Counts! WYNN RESORTS, LIMITED 2026 Annual Meeting Vote by May 5, 2026 11:59 PM ET WYNN RESORTS, LIMITED ATTN: CORPORATE SECRETARY 3131 LAS VEGAS BLVD. SOUTH LAS VEGAS, NV 89109 V87727-P44862 You invested in WYNN RESORTS, LIMITED 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 shareholder meeting to be held on May 6, 2026. 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 materials(s) by requesting prior to April 22, 2026. If you would like to request a copy of the materials(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 [email protected]. 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. Vote Virtually at the Meeting* May 6, 2026 8:00 AM PT Virtually at: www.virtualshareholdermeeting.com/WYNN2026 *Please check the meeting materials for any special requirements for meeting attendance. 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 Virtually at the Meeting* May 6, 2026 8:00 AM PT Virtually at: www.virtualshareholdermeeting.com/WYNN2026 *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. Voting Items Board Recommends 1. To elect three Class III directors to serve until the 2029 Annual Meeting of Shareholders Nominees: 1a. Richard J. Byrne For 1b. Patricia Mulroy For 1c. Philip G. Satre For 2. To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for the fiscal year ending December 31, 2026. For 3. To approve, on a non-binding advisory basis, the compensation of our named executive officers as described in the Proxy Statement. For 4. To approve an amendment and restatement of our amended and restated 2014 Omnibus Incentive Plan to increase the authorized shares by 3,000,000 shares. For NOTE: To consider and transact such other business as may properly come before the Annual Meeting or any adjournment or postponement thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click "Delivery Settings". V87728-P44862