SEC Form DEFA14A filed by TechTarget Inc.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of

the Securities Exchange Act of 1934

(Amendment No. )

Check the appropriate box:

TechTarget, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

☒ 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

Online Go to www.envisionreports.com/TTGT or scan the QR code — login details are located in the shaded bar below. Votes submitted electronically must be received by 11:00 A.M., Eastern Daylight Time on July 24, 2025. Stockholder Meeting Notice Important Notice Regarding the Availability of Proxy Materials for the TechTarget, Inc. 2025 Annual Meeting of Stockholders to be Held on July 24, 2025 Under Securities and Exchange Commission rules, you are receiving this notice that the proxy materials for the 2025 Annual Meeting of Stockholders 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 or, if requested, by mail. We encourage you to access and review all of the important information contained in the proxy materials before voting. TechTarget, Inc.’s (the “Company”) proxy statement and annual report on form 10-K are available at: www.envisionreports.com/TTGT Easy Online Access — View your proxy materials and vote. Step 1: Go to www.envisionreports.com/TTGT. 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 July 11, 2025 to facilitate timely delivery. 2NOT 044ZEG

Stockholder Meeting Notice TechTarget, Inc.’s 2025 Annual Meeting of Stockholders (“Annual Meeting”) will be held on July 24, 2025 at our corporate headquarters at 275 Grove Street, Newton, MA 02466 at 11:00 a.m., Eastern Daylight Time. Directions to the Company’s Annual Meeting are available in the proxy statement which can be viewed at www.envisionreports.com/TTGT. 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 nominees, FOR Proposals 2 and 3, and for “1 YEAR” for Proposal 4. 1. Election of Directors: Sally Ashford, Stephen A. Carter, David Flaschen, M. Sean Griffey, Don Hawk, Mary McDowell, Gary Nugent, Perfecto Sanchez, and Christina Van Houten. 2. To ratify the appointment of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2025. 3. To approve an advisory (non-binding) resolution to approve the compensation of our named executive officers. 4. To approve an advisory (non-binding) proposal on the frequency of future advisory votes on the compensation of the Company’s named executive officers. 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 www.envisionreports.com/TTGT. 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 TechTarget” 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 July 11, 2025.