Director Anthony Grillo acquires 74 Littelfuse (LFUS) shares via dividends

Rhea-AI Filing Summary

Littelfuse director Anthony Grillo reported small stock awards tied to dividends. On March 5, 2026, he acquired 72 shares of common stock through dividend reinvestment in a deferred compensation plan and 2 shares as dividend equivalents on unvested restricted stock units, bringing his directly held total to 70,408 shares.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider GRILLO ANTHONY

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	72	$323.58	$23K
Grant/Award	Common Stock	2	$323.58	$647.16

Holdings After Transaction: Common Stock — 70,406 shares (Direct)

Footnotes (1)

1. Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan. Represents shares accrued as payment of dividends on unvested restricted stock units.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

GRILLO ANTHONY

(Last) (First) (Middle)

6133 NORTH RIVER ROAD, SUITE 500

(Street)

ROSEMONT IL 60018

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
LITTELFUSE INC /DE [ LFUS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	03/05/2026		A		72(1)	A	$323.58	70,406	D
Common Stock	03/05/2026		A		2(2)	A	$323.58	70,408	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares acquired pursuant to reinvestment of dividends on shares held pursuant to a deferred compensation plan.

2. Represents shares accrued as payment of dividends on unvested restricted stock units.

Remarks:

	/s/Ryan K. Stafford, Power of Attorney	03/09/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did Littelfuse (LFUS) director Anthony Grillo report?

Anthony Grillo reported acquiring 74 Littelfuse shares through stock awards tied to dividends. The Form 4 shows 72 shares from dividend reinvestment in a deferred compensation plan and 2 shares from dividends on unvested restricted stock units on March 5, 2026.

How many Littelfuse (LFUS) shares does Anthony Grillo hold after this Form 4?

After these transactions, Anthony Grillo directly holds 70,408 Littelfuse common shares. This total reflects the addition of 72 shares from dividend reinvestment and 2 shares accrued as dividend equivalents on unvested restricted stock units reported for March 5, 2026.

Were Anthony Grillo’s Littelfuse (LFUS) transactions open-market buys or sales?

The reported transactions were awards, not open-market trades. The Form 4 classifies both as acquisitions: 72 shares from dividend reinvestment in a deferred compensation plan and 2 shares as dividend payments on unvested restricted stock units, all coded as grants or awards.

What do the Form 4 footnotes reveal about the Littelfuse (LFUS) share awards?

The footnotes clarify both entries are dividend-related stock accruals. One describes shares acquired through reinvested dividends in a deferred compensation plan, while the other explains shares accrued as payment of dividends on unvested restricted stock units held for Anthony Grillo.

On what date were the Littelfuse (LFUS) dividend-related stock awards granted to Anthony Grillo?

Both dividend-related stock awards to Anthony Grillo are recorded as of March 5, 2026. On that date, he received 72 Littelfuse common shares via dividend reinvestment and 2 additional shares as dividend equivalents on unvested restricted stock units, increasing his direct holdings.