0001593968-21-000816 4 1 20210303 20210304 20210304 CHUKWU EMEKA 0001381846 4 34 001-06395 21716106 200 FLYNN ROAD CAMARILLO CA 93012-8790 SEMTECH CORP 0000088941 3674 952119684 DE 0126 200 FLYNN ROAD CAMARILLO CA 93012-8790 8054982111 200 FLYNN ROAD CAMARILLO CA 93012-8790 4 1 primary_01.xml PRIMARY DOCUMENT X0306 4 2021-03-03 0000088941 SEMTECH CORP SMTC 0001381846 CHUKWU EMEKA 200 FLYNN ROAD CAMARILLO CA 93012-8790 false true false false EVP and CFO Common Stock 2021-03-03 4 M false 6852 0 A 95857 D Common Stock 2021-03-03 4 F false 2492 72.05 D 93365 D Restricted Stock Unit 2021-03-03 4 M false 6852 0 D SMTC 6852 13704 D Each stock unit is the economic equivalent of one share of Semtech common stock. This grant vests in three annual installments beginning on March 3, 2021. This grant vests in three annual installments beginning on March 3, 2021. /s/Emeka Chukwu by Charles B. Ammann under Power of Attorney dated February 25, 2014 (Copy On File) 2021-03-04