First United Corp — Additional Proxy Materials (DEFA14A)

Step 1: Go to www.envisionreports.com/FUNC. Step 2: Click on Cast Your Vote or Request Materials. Step 3: Follow the instructions on the screen to log in. www.envisionreports.com/FUNC Online Go to www.envisionreports.com/FUNC or scan the QR code — login details are located in the shaded bar below. Shareholder Meeting Notice 048TEG Important Notice Regarding the Availability of Proxy Materials for the First United Corporation Shareholder Meeting to be Held on May 7, 2026 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the annual shareholders’ 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. This is not a proxy card. You cannot vote by returning this notice. We encourage you to access and review all of the important information contained in the proxy materials before voting. The 2025 Annual Report, Proxy Statement, and 2025 Form 10-K 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 27, 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. Votes submitted electronically must be received by 1:00 A.M., Eastern time, on May 7, 2026. MMMMMMMMMMMM MMMMMMMMM 000001MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 ENDORSEMENT_LINE______________ SACKPACK_____________ 1234 5678 9012 345 C 1234567890 COY MMMMMMM

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/FUNC. 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 First United Corporation” 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 27, 2026. The 2026 Annual Meeting of Shareholders of First United Corporation will be held on May 7, 2026, 9:00 A.M. EST, at First United Operations Center, 12892 Garrett Highway, Oakland, Maryland 21550. Proposals to be voted on at the meeting are listed below along with the Board of Directors’ recommendations. The Board of Directors recommends a vote FOR all the nominees listed in Proposal 1, FOR Proposals 2, 3 and 5, and FOR EVERY ONE YEAR in Proposal 4: 1. Election of Directors: 01 - John F. Barr 02 - Brian R. Boal 03 - Sanu B. Chadha 04 - Christy M. DiPietro 05 - Kevin R. Hessler 06 - Patricia A. Milon 07 - Beth E. Moran 08 - I. Robert Rudy 09 - Jason B. Rush 10 - H. Andrew Walls, III 2. To approve an amendment to the Corporation’s charter to reduce the votes required to approve certain shareholder actions, from two-thirds of all votes entitled to be cast on the matter to a majority of all votes entitled to be cast on the matter. 3. To approve, by a non-binding advisory vote, the compensation paid to the Corporation’s named executive officers for 2025. 4. To recommend, by a non-binding advisory vote, the frequency of future Say-on-Pay Votes (every 1 year, every 2 years or every 3 years). 5. To ratify the appointment of Crowe LLP as the Corporation’s independent registered public accounting firm for 2026. 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. Shareholder Meeting Notice