X0206 3 2018-09-20 0 0000088941 SEMTECH CORP SMTC 0001753689 Cardenuto Rodolpho C 200 FLYNN RD. CAMARILLO CA 93012 true false false false Board of Directors Common Stock 0 D On September 20, 2018 Mr. Cardenuto was appointed to the company's Board of Directors. /s/Rodolpho C Cardenuto by Charles B. Ammann under Power of Attorney dated September 18, 2018 (Copy Attached) 2018-09-24