UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

SCHEDULE 14A

(Rule 14a-101)

INFORMATION REQUIRED IN PROXY STATEMENT

SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

(Amendment No. )

Filed by the Registrant x

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

x Definitive Additional Materials

¨ Soliciting Material Under §240.14a-12

First United Corporation

(Name of Registrant as Specified in Its Charter)

N/A

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

Payment of Filing Fee (Check the appropriate box):

x 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

First United Corporation ENDORSEMENT_LINE______________ SACKPACK_____________ MR A SAMPLE DESIGNATION (IF ANY) ADD 1 ADD 2 ADD 3 ADD 4 ADD 5 ADD 6 C 1234567890 Online Go to https://www.envisionreports.com/FUNC or scan the QR code - login details are located in the shaded bar below. Votes submitted electronically must be received by 1:00 am, Eastern Time, on May 9, 2024. Shareholder Meeting Notice 1234 5678 9012 345 Important Notice Regarding the Availability of Proxy Materials for the First United Corporation Shareholder Meeting to be Held on May 9, 2024 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 Notice, Proxy Card, Annual Report, Annual Report on Form 10K, and Proxy Statement are available at: https://www.envisionreports.com/FUNC Easy Online Access - View your proxy materials and vote. Step 1: Go to https://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. Step 4: Make your selections as instructed on each screen for your delivery preferences. Step 5: Vote your shares. When you go online, you can also help the environment by consenting to receive electronic delivery of future materials. 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 30, 2024 to facilitate timely delivery. 2 N O T C O Y 03YIOB

Shareholder Meeting Notice The 2024 Annual Meeting of Shareholders of First United Corporation will be held on Thursday, May 9, 2024, 9:00 A.M. Eastern Time, at The Wisp Resort, Crawford Room, 290 Marsh Hill Road, McHenry, MD 21541. 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 director nominees listed in Proposal 1 and FOR Proposals 2-5: 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 - Carissa L. Rodeheaver 09 - I. Robert Rudy 10 - Marisa A. Shockley 11 - H. Andrew Walls, III 2. To approve an amendment to the Corporations'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 2023. 4. To ratify the appointment of Crowe LLP as the Corporation's independent registered accounting firm for 2024. 5. If necessary or appropriate, to approve the adjournment or postponement of the 2024 Annual Meeting to a later date or dates to permit further solicitation of additional proxies in the event there are not sufficient votes at the special meeting to approve any of 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. 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 https://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 30, 2024.