SEC Form DEFA14A filed by Concentra Group Holdings Parent Inc.

Step 1: Go to www.envisionreports.com/CON. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. www.envisionreports.com/CON Online Go to www.envisionreports.com/CON or scan the QR code — login details are located in the shaded bar below. Stockholder Meeting Notice 043CFE Important Notice Regarding the Availability of Proxy Materials for the Concentra Group Holdings Parent, Inc. Meeting to be Held on Thursday, May 1, 2025 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. The proxy statement and annual report to stockholders 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 April 21, 2025 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. Concentra Group Holdings Parent, Inc. 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/CON. Click Cast Your Vote or Request Materials. — Phone – Call us free of charge at 1-866-641-4276. — Email – Send an email to [email protected] with “Proxy Materials Concentra Group Holdings Parent, 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 April 21, 2025. Dear Concentra Group Holdings Parent, Inc. Stockholder: The 2025 Annual Meeting of Stockholders of Concentra Group Holdings Parent, Inc. will be held on Thursday, May 1, 2025 at 11:00am Central Time, virtually via the internet at https://meetnow.global/MG7NTCU. To access the virtual meeting, you must have the information that is printed in the shaded bar located on the reverse side of this form. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommend a vote FOR all the nominees listed, FOR Proposal 2, 1 YEAR for Proposal 3, and FOR Proposal 4: 1. Elect two Class I directors, each for a term of three years or until their respective successors have been elected and qualified: 01 - Cheryl B. Pegus 02 - Daniel J. Thomas 2. Hold a non-binding advisory vote on the compensation of our named executive officers. 3. Hold a non-binding advisory vote on the frequency of the advisory vote on the compensation of our named executive officers. 4. Ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025. 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. Stockholder Meeting Notice