X0609 4 2026-06-03 0 0000088941 SEMTECH CORP SMTC 0001753689 Cardenuto Rodolpho C false 200 FLYNN RD. CAMARILLO CA 93012 1 0 0 0 0 Common Stock 2026-06-03 4 M 0 5321 0 A 5321 D Restricted Stock Unit 2026-06-03 4 M 0 5321 0 D Common Stock 5321 0 D Restricted Stock Unit 2026-06-04 4 A 0 1180 0 A Common Stock 1180 1180 D Each stock unit represents the contingent right to receive one share of Semtech common stock. This RSU award fully vested on the day immediately preceding the 2026 Annual Meeting of Stockholders. The stock units vest on the earlier of the one year anniversary of the award and the day immediately preceding the date of the first annual meeting of stockholders following the grant and are payable in shares. The reporting person has elected to defer settlement of the stock units pursuant to the Semtech Corporation Director Deferred Compensation Plan. /s/Rodolpho C Cardenuto by Mark Lin under Power of Attorney dated October 6, 2023 (Copy On File) 2026-06-05