Cerniglia Kristina A. 4
4 · LITTELFUSE INC /DE · Filed Feb 25, 2026
Insider Transaction Report
Form 4
Cerniglia Kristina A.
Director
Transactions
- Exercise/Conversion
Common Stock
2026-02-24$199.24/sh+911$181,508→ 5,166 total - Exercise/Conversion
Common Stock
2026-02-24$132.08/sh+1,432$189,139→ 6,598 total - Sale
Common Stock
[F1]2026-02-24$368.38/sh−2,343$863,114→ 4,255 total - Exercise/Conversion
Stock Option (right to buy)
[F2]2026-02-24−911→ 0 totalExercise: $199.24Exp: 2026-04-26→ Common Stock (911 underlying) - Exercise/Conversion
Stock Option (right to buy)
[F3]2026-02-24−1,432→ 0 totalExercise: $132.08Exp: 2027-04-23→ Common Stock (1,432 underlying)
Footnotes (3)
- [F1]This transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 18, 2025.
- [F2]The option for 911 shares vested in increments of one third annually beginning on the first anniversary of the April 26, 2019 date of grant.
- [F3]The option for 1,432 shares vested in increments of one third annually beginning on the first anniversary of the April 23, 2020 date of grant.
Signature
/s/Ryan K. Stafford, Power of Attorney|2026-02-25