144 0001667921 XXXXXXXX LIVE 0000088941 Semtech Corp 001-06395 200 FLYNN ROAD Camarillo CA 93012 8054982111 Li Revocable Trust DTD 11/27/2013 Director Common stock UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

5500 907500 89770000 05/28/2026 NASDAQ Common stock 06/09/2021 RSU Vesting Issuer N 1371 06/09/2021 NA Common stock 06/08/2022 RSU Vesting Issuer N 1322 06/08/2022 NA Common stock 06/10/2020 RSU Vesting Issuer N 914 06/10/2020 NA Common stock 06/13/2018 RSU Vesting Issuer N 1678 06/13/2018 NA Common stock 06/12/2019 RSU Vesting Issuer N 215 06/12/2019 NA Y Ye Jane Li is the trustee of the Li Revocable Trust DTD 11/27/2013. Ye Jane Li serves on the board of Semtech Corp 05/28/2026 /s/Mijo Suric, for UBS Financial Services Inc, as attorney-in-fact for Li Revocable Trust DTD 11/27/2013