SYNAPTICS Inc

Trading Arrangements

During the fiscal quarter ended September 2025, none of our directors or officers (as defined in Rule 16a-1(f) of the Securities Exchange Act of 1934)adopted, terminated or modified a Rule 10b5-1 trading arrangement or non-Rule 10b5-1 trading arrangement (as such terms are defined in Item 408 of Regulation S-K), except for the new adoptions as described below:

• Intended to satisfy the affirmative defense of Rule 10b5-1(c).

** Not intended to satisfy the affirmative defense of Rule 10b5-1(c).

(1) The aggregate number of shares that will be available for sale under each plan is not yet determinable because the shares available will be net of shares sold to satisfy tax withholding obligations that arise in connection with the vesting and settlement of such equity awards, as well as performance stock units that will only vest upon achievement of applicable performance targets and may not vest at all. Additionally, certain provisions within the plan specify systematic periodic sales at pre-established price levels and at a certain percentage of the net shares that can be sold at the vesting date of the underlying equity award spanning over fiscal 26 and fiscal 27. For our Chief Executive Officer, generally 25% of net shares can be sold on the vesting date of the equity award spanning over fiscal 2026 and fiscal 2027. As such, for purposes of this disclosure, the shares included in this table reflect the aggregate maximum number of underlying shares the holders of the equity awards can sell without excluding (i) the amount of shares that will be sold to satisfy the tax withholding obligations and (ii) any limitations on the amount of net shares that can be sold on the vesting date of the equity award.