X0306 4 2016-02-25 0000088941 SEMTECH CORP SMTC 0001667921 Li Ye Jane 200 FLYNN ROAD CAMARILLO CA 93012-8790 1 0 0 0 Stock Option (Right To Buy) 18.50 2016-02-25 4 A 0 19349 0 A 2022-02-25 Common Stock 19349 19349 D Stock Unit 2016-02-25 4 A 0 1116 0 A Common Stock 1116 1116 D Stock Unit 2016-02-25 4 A 0 1302 0 A Common Stock 1302 1302 D This grant vests in four annual installments beginning on February 25, 2017. Each Stock Unit represents the contingent right to one share of the company's common stock. The stock units vest on June 15, 2016. The stock units vest on June15, 2016 and are payable in cash on the last date that the Director renders services to the Company. Ye Jane Li by Charles B. Ammann under Power of Attorney dated February 23, 2016 (Copy On File) 2016-02-29