X0306 4 2021-11-02 0 0000889331 LITTELFUSE INC /DE LFUS 0001186518 HUNTER GORDON 8755 W. HIGGINS ROAD SUITE 500 CHICAGO IL 60631 1 0 0 0 Common Stock 2021-11-02 4 M 0 5000 120.15 A 28613 D Common Stock 2021-11-02 4 S 0 5000 309.00 D 23613 D Stock Option (right to buy) 120.15 2021-11-02 4 M 0 5000 0 D 2023-04-22 Common Stock 5000 6074 D This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 15, 2021. The option for 36,074 shares vested in increments of one third annually beginning on the first anniversary of the April 22, 2016 date of grant. Due to an administrative error, the number of derivative securities beneficially owned following the reporting person's transaction on October 22, 2021 were incorrectly reported as 6,074 shares instead of 11,074 shares on a Form 4 filed on October 25, 2021. This column reflects the corrected balance. Hans Weinburger, by power of attorney 2021-11-04