LITTELFUSE INC /DE — Director's Dealing 2026

Feb 4, 2026

SEC Form 4 — Statement of Changes in Beneficial Ownership

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

Reporting Person: Nayar Deepak (SVP & GM Electronics Business)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2026-02-02	Common Stock	M	4300	$267.84	Acquired	10309	Direct
2026-02-02	Common Stock	M	4575	$240.76	Acquired	14884	Direct
2026-02-02	Common Stock	S	120	$325.50	Disposed	14764	Direct
2026-02-02	Common Stock	S	320	$324.34	Disposed	14444	Direct
2026-02-02	Common Stock	S	642	$323.50	Disposed	13802	Direct
2026-02-02	Common Stock	S	2406	$322.37	Disposed	11396	Direct
2026-02-02	Common Stock	S	1608	$321.39	Disposed	9788	Direct
2026-02-02	Common Stock	S	3779	$320.40	Disposed	6009	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2026-02-02	Stock Option (right to buy)	$267.84	M	4300	Disposed	2028-04-22	Common Stock (4300)	Direct
2026-02-02	Stock Option (right to buy)	$240.76	M	4575	Disposed	2030-04-27	Common Stock (4575)	Direct

Footnotes

F1: The shares were sold in multiple transactions at prices ranging from $324.17 to $324.60, 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 $323.00 to $323.85, 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 shares were sold in multiple transactions at prices ranging from $322.01 to $322.94, 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.

F4: The shares were sold in multiple transactions at prices ranging from $321.03 to $321.98, 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.

F5: The shares were sold in multiple transactions at prices ranging from $320.00 to $320.89, 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.

F6: The option for 4,300 shares vested in increments of one third annually beginning on the first anniversary of the April 22, 2021 date of grant.

F7: The option for 6,862 shares vested in increments of one third annually beginning on the first anniversary of the April 27, 2023 date of grant.