[Form 4] Littelfuse Inc Insider Trading Activity

Rhea-AI Filing Summary

Kim Peter Sung-Jip, Senior Vice President and General Manager of Littelfuse's Industrial Business, reported an acquisition of Littelfuse Inc. (LFUS) common stock on 09/05/2025. The filing states the shares were received as payment of dividends on unvested restricted stock units. The report lists a transaction price of $259.58 and indicates 10,169 shares were beneficially owned following the reported transaction. The ownership is reported as direct. The Form 4 was signed by Ryan K. Stafford under power of attorney on 09/08/2025.

Positive

• Increased insider alignment through receipt of shares tied to compensation, aligning executive incentives with shareholder interests
• Transparent disclosure of the transaction details and post-transaction beneficial ownership (10,169 shares)

Negative

• None.

Insights

Securities Analyst

TL;DR: Routine insider acquisition via dividend-equivalent on RSUs; increases direct holdings modestly and is non-material to capital structure.

The filing documents a standard Section 16 transaction where an officer received shares as dividend equivalents on unvested restricted stock units. The transaction does not indicate open-market purchases or sales, nor any derivative exercises. The post-transaction beneficial ownership of 10,169 shares provides transparency on insider stake but, absent additional context on total outstanding shares or recent insider trends, this is a routine disclosure with limited market impact.

Corporate Governance Expert

TL;DR: Administrative issuance tied to compensation plan; reflects compensation mechanics rather than a strategic insider trade.

The disclosure specifies the shares were accrued as dividend payments on unvested RSUs, which is consistent with common executive compensation practices. The reporting person is an officer and director-level executive, and the use of a power of attorney for signature is typical. There is no indication of any change in control, accelerated vesting, or sale that would raise governance concerns.

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

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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^*

Kim Peter Sung-Jip

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & GM Industrial Business

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		6(1)	A	$259.58	10,169	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 accrued as payment of dividends on unvested restricted stock units.

	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 transaction did Kim Peter Sung-Jip report for LFUS on Form 4?

The filing reports an acquisition on 09/05/2025 of LFUS common stock received as dividend payments on unvested restricted stock units.

How many Littelfuse shares does the reporting person beneficially own after the transaction?

The Form 4 states the reporting person beneficially owned 10,169 shares following the reported transaction.

What was the reported price per share for the transaction?

The transaction lists a price of $259.58 per share.

Is the ownership reported as direct or indirect?

Ownership is reported as Direct.

Who signed the Form 4 and when?

The Form 4 was signed under power of attorney by Ryan K. Stafford on 09/08/2025.