TTM TECHNOLOGIES INC

Rule 10b5-1 Trading Plans

On February 26, 2025, Steven Spoto, President of our Integrated Electronics Business Unit, adopted a Rule 10b5-1 trading arrangement that is intended to provide for “eligible sell-to-cover transactions” (as described in Rule 10b5-1(c)(1)(ii)(D)(3) under the Securities Exchange Act of 1934, as amended (Exchange Act)) to satisfy tax withholding obligations arising exclusively from vesting of restricted stock units (RSUs). The number of shares subject to covered RSUs that will be sold to satisfy applicable tax withholding obligations upon vesting is not currently determinable as the number will vary based on the market price of our common stock and the extent to which vesting conditions are satisfied. This sell-to-cover arrangement provides solely for the automatic sale of shares that would otherwise be issuable in respect of a covered RSU in an amount sufficient to satisfy the applicable withholding obligation, with the proceeds of the sale delivered to us in satisfaction of the applicable withholding obligation. The plan for Mr. Spoto is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) and will expire on August 15, 2025 or any earlier date on which all of the contemplated sales have been completed.

During the quarter ended March 31, 2025, none of our other directors and/or officers (as defined in Rule 16a-1(f) under the Exchange Act)adopted orterminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement for the purchase or sale of our securities.