ANTHONY GRILLO - 10 Feb 2026 Form 4 Insider Report for LITTELFUSE INC /DE (LFUS)

Role
Director
Signature
/s/Ryan K. Stafford, Power of Attorney
Issuer symbol
LFUS
Transactions as of
10 Feb 2026
Net transactions value
-$1,549,712
Form type
4
Filing time
11 Feb 2026, 16:52:06 UTC
Previous filing
08 Dec 2025
Next filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
GRILLO ANTHONY Director 6133 NORTH RIVER ROAD, SUITE 500, ROSEMONT /s/Ryan K. Stafford, Power of Attorney 11 Feb 2026 0001070847

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LFUS Common Stock Sale $1,581,814 -4,570 -6.1% $346.13 69,853 10 Feb 2026 Direct F1
transaction LFUS Common Stock Sale $135,466 -390 -0.56% $347.35 69,463 10 Feb 2026 Direct F2
transaction LFUS Common Stock Sale $13,939 -40 -0.06% $348.47 69,423 10 Feb 2026 Direct
transaction LFUS Common Stock Options Exercise $181,508 +911 +1.3% $199.24 70,334 10 Feb 2026 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction LFUS Stock Option (right to buy) Options Exercise $0 -911 -100% $0.000000 0 10 Feb 2026 Common Stock 911 $199.24 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.