144 0001805631 XXXXXXXX LIVE 0001130144 SIERRA BANCORP 000-33063 86 North Main Street Porterville CA 93257 (559) 782-4900 CINDY DABNEY Officer Common Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

3443 110176.00 13482458 12/03/2025 NASDAQ Common 12/03/2025 Stock Option Exercise Issuer N 3443 12/03/2025 Cash Y 12/03/2025 /s/ Cindy Lynnette Dabney