Amc Entertainment Holdings Inc — Additional Proxy Materials (DEFA14A)

Step 1: Go to www.envisionreports.com/AMC. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. www.envisionreports.com/AMC Online Go to www.envisionreports.com/AMC or scan the QR code — login details are located in the shaded bar below. Stockholder Meeting Notice 04B8VC Important Notice Regarding the Availability of Proxy Materials for the AMC Entertainment Holdings, Inc. Stockholders Meeting to be Held on September 24, 2026. Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual stockholders’ meeting are available on the Internet. Follow the instructions below to view the materials and vote online or request a copy. The items to be voted on and location of the annual meeting are on the reverse side. Your vote is important! 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. 2025 Annual Report to Stockholders and the 2026 Proxy Statement are available at: Obtaining a Copy of the Proxy Materials – If you want to receive a copy of the proxy materials, you must request one. There is no charge to you for requesting a copy. Please make your request as instructed on the reverse side on or before September 11, 2026 to facilitate timely delivery. 2NOT Easy Online Access — View your proxy materials and vote. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. Step 4: Make your selections as instructed on each screen for your delivery preferences. Step 5: Vote your shares.

Here’s how to order a copy of the proxy materials and select delivery preferences: Current and future delivery requests can be submitted using the options below. If you request an email copy, you will receive an email with a link to the current meeting materials. PLEASE NOTE: You must use the number in the shaded bar on the reverse side when requesting a copy of the proxy materials. — Internet – Go to www.envisionreports.com/AMC. Click Cast Your Vote or Request Materials. — Phone – Call us free of charge at 1-866-641-4276. — Email – Send an email to investorvote@computershare.com with “Proxy Materials AMC Entertainment Holdings, Inc.” in the subject line. Include your full name and address, plus the number located in the shaded bar on the reverse side, and state that you want a paper copy of the meeting materials. To facilitate timely delivery, all requests for a paper copy of proxy materials must be received by September 11, 2026 The 2026 Annual Meeting of Stockholders of AMC Entertainment Holdings, Inc. will be held on Thursday, September 24, 2026, 1:00 p.m. Central Time at the AMC Theatre Support Center located at One AMC Way, 11500 Ash Street, Leawood, Kansas 66211. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board recommends a vote FOR Proposal 1, FOR each Director Nominee in Proposal 2(a) or 2(b), FOR Proposals 3, 4, 5, 6, 7, and 9, and for 1 YEAR on Proposal 8: 1. To approve an amendment to our Fourth Amended and Restated Certificate of Incorporation (our “Certificate of Incorporation”) to declassify our Board of Directors, shorten all existing terms of directors to expire at the Annual Meeting, and remove restrictions on the number of directors. 2a. If Proposal No. 1 is approved, to elect to our Board of Directors the following nominees for terms expiring at the 2027 Annual Meeting: 01 – Mr. Adam M. Aron 02 – Ms. Denise M. Clark 03 – Mr. Marcus Glover 04 – Ms. Sonia Jain 05 – Mr. Howard W. “Hawk” Koch, Jr. 06 – Mr. Philip Lader 07 – Mr. Gary F. Locke 08 – Ms. Keri S. Putnam 09 – Dr. Anthony J. Saich 10 – Mr. Adam J. Sussman 2b. If Proposal No. 1 is not approved, to elect to our Board of Directors the following nominees for terms expiring at the 2029 Annual Meeting: 01 – Ms. Denise M. Clark 02 – Ms. Sonia Jain 03 – Ms. Keri S. Putnam 3. To approve an amendment to our Certificate of Incorporation to eliminate the prohibition against stockholders acting by written consent. 4. To approve an amendment to our Certificate of Incorporation to remove the limitation on stockholders’ ability to call special meetings. 5. To approve an amendment to our 2024 Equity Incentive Plan (the “2024 EIP”) to increase the total number of shares of Class A Common Stock subject to the 2024 EIP from 25,000,000 shares to 50,000,000 shares. 6. To ratify the appointment of Ernst & Young LLP as our independent registered public accounting firm for 2026. 7. To conduct a non-binding advisory vote to approve the compensation of named executive officers. 8. To conduct a non-binding advisory vote on the frequency of the non-binding advisory vote to approve the compensation of named executive officers. 9. To approve one or more adjournments of the Annual Meeting, if necessary, to permit further solicitation of proxies if there are insufficient votes to adopt the foregoing proposals. PLEASE NOTE – YOU CANNOT VOTE BY RETURNING THIS NOTICE. To vote your shares you must go online or request a paper copy of the proxy materials to receive a proxy card. If you wish to attend and vote at the meeting, please bring this notice with you. Stockholder Meeting Notice