LITTELFUSE INC /DE — Director's Dealing 2026

Feb 11, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: LITTELFUSE INC /DE (LFUS)
CIK: 0000889331
Period of Report: 2026-02-10

Reporting Person: GRILLO ANTHONY (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-10	Common Stock	S	4570	$346.13	Disposed	69853	Direct
2026-02-10	Common Stock	S	390	$347.35	Disposed	69463	Direct
2026-02-10	Common Stock	S	40	$348.47	Disposed	69423	Direct
2026-02-10	Common Stock	M	911	$199.24	Acquired	70334	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-10	Stock Option (right to buy)	$199.24	M	911	Disposed	2026-04-26	Common Stock (911)	Direct

Footnotes

F1: The shares were sold in multiple transactions at prices ranging from $346.00 to $346.80, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

F2: The shares were sold in multiple transactions at prices ranging from $347.27 to $347.40, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

F3: 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.