[Form 4] Littelfuse Inc Insider Trading Activity

Rhea-AI Filing Summary

William P. Noglows, a director of Littelfuse, acquired shares through dividend reinvestment and dividend accrual on restricted stock units on 09/05/2025. Two non-derivative purchases at a reported price of $259.58 each show 20,760 and 20,763 shares acquired, respectively, reflecting dividend reinvestment and dividend payments on unvested RSUs. The filing also reports 2,500 shares held in trust for his son and 2,500 shares held in trust for his daughter, listed as indirect holdings. The transactions were reported on Form 4 and executed under routine dividend-related plans rather than open-market discretionary purchases.

Positive

• Director participation in dividend reinvestment shows alignment with company compensation/dividend programs
• Transactions fully disclosed on Form 4 with supporting explanation and POA signature

Negative

• None.

Insights

Financial Analyst

TL;DR: Insider acquisitions stem from dividend reinvestment and RSU dividend accrual, indicating no discretionary open-market buy and modest direct ownership change.

The reported transactions show 41,523 shares acquired at $259.58 via dividend-related mechanisms, which increases the reporting person's stake but appears administrative rather than an active bullish signal. The indirect trust holdings of 5,000 shares are unchanged in nature. For investors, these are routine compensation and dividend-plan activities that do not materially alter company control or suggest a new insider conviction beyond participating in company dividend programs.

Corporate Governance Expert

TL;DR: Transactions are standard dividend reinvestment and RSU-related entries; disclosure complies with Section 16 reporting norms.

The Form 4 properly discloses reinvested dividends and dividend accruals on unvested RSUs, with clear identification of indirect holdings held in trusts for family members. Signatures and POA are provided. This filing reflects routine governance and compensation mechanics rather than material governance changes or related-party transactions requiring further disclosure.

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
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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^*

NOGLOWS WILLIAM P

(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)
09/05/2025

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	09/05/2025		A		8(1)	A	$259.58	20,760	D
Common Stock	09/05/2025		A		3(2)	A	$259.58	20,763	D
Common Stock								2,500	I	By Trust(3)
Common Stock								2,500	I	By Trust(4)

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.

3. Shares held in trust for the benefit of the reporting person's son.

4. Shares held in trust for the benefit of the reporting person's daughter.

	Ryan K. Stafford, Power of Attorney	09/08/2025
	** 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 did Littelfuse director William P. Noglows report on Form 4 (LFUS)?

He reported dividend-related acquisitions on 09/05/2025 totaling 41,523 shares (20,760 and 20,763) at a reported price of $259.58 per share, plus 2,500 shares held in trust for each child.

Were the shares purchased on the open market or via a plan for LFUS?

The filing states the shares were acquired through dividend reinvestment and dividend accrual on unvested RSUs, not open-market discretionary purchases.

How many shares are indirectly owned by Noglows through trusts?

The Form 4 discloses 2,500 shares held in trust for his son and 2,500 shares held in trust for his daughter (indirect ownership).

What price was reported for the transactions on the Form 4?

The transactions list a price of $259.58 per share for the reported dividend-related acquisitions.

When was the Form 4 filed and who signed it?

The filing lists the transaction date as 09/05/2025 and includes a Power of Attorney signature by Ryan K. Stafford dated 09/08/2025.