SEC Form DEFA14A filed by Teledyne Technologies Incorporated

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

Check the appropriate box:

Online Go to www.envisionreports.com/tdy or scan the QR code — login details are located in the shaded bar below. Stockholder Meeting Notice Important Notice Regarding the Availability of Proxy Materials for the Teledyne Technologies Incorporated’s Annual Stockholders’ Meeting to be Held on April 22, 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. Teledyne’s Form 10-K and Proxy Statement to stockholders are available at: www.envisionreports.com/tdy Easy Online Access — View your proxy materials and vote. Step 1: Go to www.envisionreports.com/tdy. 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 10, 2026 to facilitate timely delivery. 2 NOT 048GAC

Stockholder Meeting Notice Teledyne Technologies Incorporated’s Annual Meeting of Stockholders will be held on April 22, 2026 via the internet at https://meetnow.global/MVLG54L at 9:15 a.m. Pacific Time. 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 recommends a vote FOR all nominees and FOR Proposals Proposals 2, 3, 4 and 5: 1. Election of directors: 01 - Michelle A. Kumbier 02 - Robert A. Malone 2. Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for fiscal year 2026 3. Approval of a non-binding advisory resolution on the Company’s executive compensation (“say on pay”) 4. Approval of an amendment and restatement of the Company’s Restated Certificate of Incorporation to adopt a stockholder right to call special meetings of stockholders 5. Approval of Amended and Restated Teledyne Technologies Incorporated 2014 Incentive Award Plan NOTE: SUCH OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE ANNUAL MEETING OR ANY ADJOURNMENT THEREOF. 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. 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/tdy. 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 Teledyne Technologies Incorporated” 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 10, 2026.