Officer Share Acquisition

David Ruppel, SVP & GM Transportation Bus. at LITTELFUSE INC /DE, acquired 5 shares of Common Stock on September 3, 2026, at a price of $414.24 per share. This transaction was an acquisition, as indicated by the transaction code "A". Following this transaction, Mr. Ruppel now owns 5101 shares. The shares were accrued as payment of dividends on unvested restricted stock units, as noted by footnote F1.