0001593968-21-002126 4 1 20210914 20210914 20210914 Li Ye Jane 0001667921 4 34 001-06395 211253801 200 FLYNN ROAD CAMARILLO CA 93012-8790 SEMTECH CORP 0000088941 3674 952119684 DE 0130 200 FLYNN ROAD CAMARILLO CA 93012-8790 8054982111 200 FLYNN ROAD CAMARILLO CA 93012-8790 4 1 primary_01.xml PRIMARY DOCUMENT X0306 4 2021-09-14 0000088941 SEMTECH CORP SMTC 0001667921 Li Ye Jane 200 FLYNN ROAD CAMARILLO CA 93012-8790 true false false false Board of Directors Common Stock 2021-09-14 4 M false 6749 18.5 A 13319 D Common Stock 2021-09-14 4 S false 6749 76.3485 D 6570 D Option (right to buy) 18.50 2021-09-14 4 M false 6749 0 D 2017-02-25 2022-02-25 SMTC 6749 0 D This price represents the weighted average of these sales. The prices ranged from $76.3410 to $76.3600. Price and share details are available upon request. /s/Ye Jane Li by Charles B. Ammann under Power of Attorney dated February 23, 2016 (Copy On File) 2021-09-14