TTM TECHNOLOGIES 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

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Filed by a Party other than the Registrant☐

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Proxy Statement Summary

This summary highlights information generally contained elsewhere in this proxy statement. This summary does not contain all of the information that you should consider, and you should read the entire proxy statement carefully before voting your shares. For more complete information regarding the Company’s 2025 performance, please review the Company’s Annual Report on Form 10-K for the fiscal year ended December 29, 2025, which we refer to in this proxy statement as the 2025 Form 10-K.

Annual Meeting Information

Summary of Matters to be Voted Upon at the Annual Meeting

200 East Sandpointe, Suite 400

Santa Ana, CA 92707

NOTICE OF 2026 ANNUAL MEETING OF STOCKHOLDERS TO BE HELD ON MAY 7, 2026

The 2026 annual meeting of stockholders of TTM Technologies, Inc. will be held at 8:00 a.m., Pacific Time, via video conference accessed through the URL address https://edge.media-server.com/mmc/p/hrz4mkaj:

to elect three class II directors, consisting of Julie S. England, Philip G. Franklin and Dr. Edwin Roks, to serve a term expiring in 2029;

to approve the TTM Technologies, Inc. Equity Advantage Match Plan;

to approve, on an advisory, non-binding basis, the compensation of our named executive officers, as disclosed in the proxy statement;

to approve, on an advisory, non-binding basis, the frequency of future advisory votes to approve the compensation of our named executive officers;

to ratify the appointment of KPMG LLP as our independent registered public accounting firm for TTM Technologies, Inc. for the fiscal year ending December 28, 2026; and

to consider any other matters that properly come before the meeting and any postponement or adjournment thereof.

We are pleased to take advantage of the Securities and Exchange Commission (the “SEC”) rule allowing companies to furnish proxy materials to their stockholders over the Internet. We believe that this e-proxy process expedites stockholders’ receipt of proxy materials, saves us the cost of printing and mailing these materials, and reduces the environmental impact of our annual meeting by conserving natural resources.

Stockholders of record as of the close of business on March 11, 2026 are entitled to notice of, and to vote at, the annual meeting and any postponement or adjournment thereof. Whether or not you expect to participate in our annual meeting, please vote your shares via the Internet by following the instructions in this proxy statement. If you received a paper copy of this proxy statement you may also vote by signing, dating, and returning the enclosed proxy card in the enclosed pre-addressed envelope. No postage is required if mailed in the United States.

IMPORTANT NOTICE REGARDING THE AVAILABILITY OF PROXY MATERIALS FOR

THE STOCKHOLDER MEETING TO BE HELD ON MAY 7, 2026

The proxy statement and annual report to stockholders and the means to vote via the Internet are available at https://investors.ttm.com/news-events/annual-stockholders-meeting. Your Vote is Important— Please vote as promptly as possible by using the Internet or by signing, dating, and returning the proxy card if you received a paper copy of this proxy statement.

All stockholders are invited to attend the annual meeting. Stockholders who vote their proxy online or by executing a proxy card may nevertheless attend the meeting, revoke their proxy, and vote their shares at the meeting.