[Form 4] Littelfuse Inc Insider Trading Activity

Rhea-AI Filing Summary

Insider acquisition via dividend on restricted stock units. Kristina A. Cerniglia, a Littelfuse director, reported an acquisition on 09/05/2025 of 3 shares of Littelfuse Inc. common stock at an indicated per-share value of $259.58. The Form 4 shows these shares were accrued as payment of dividends on unvested restricted stock units rather than a market purchase.

After the transaction, the filing reports Ms. Cerniglia beneficially owns 4,252 shares directly. The Form 4 was filed individually and signed by a power of attorney, and contains no other derivative transactions or additional compensatory arrangements disclosed.

Positive

• Director increased direct holdings through dividend accrual on unvested RSUs (3 shares added)
• Filing discloses beneficial ownership level of 4,252 shares, providing transparency under Section 16

Negative

• None.

Insights

Corporate Governance Expert

TL;DR: Routine insider accrual from RSU dividends; limited investor impact.

This Form 4 documents a small, administrative increase in a director's direct holdings resulting from dividends credited on unvested restricted stock units. The transaction size—3 shares—indicates a non-material change relative to typical outstanding share counts. The filing confirms direct ownership of 4,252 shares and shows the use of a power of attorney to execute the filing, which is common practice for timely Section 16 reporting. No derivative activity or other compensatory grants are reported here.

Securities Analyst

TL;DR: Minor insider share accrual; no market-moving details disclosed.

The reported acquisition is explicitly described as dividend accrual on unvested RSUs, not an open-market transaction. The per-share value is listed at $259.58, but the filing shows only three shares were added, implying an administrative adjustment rather than a strategic purchase. For investors, this disclosure fulfills Section 16 transparency requirements but does not provide material information likely to affect valuation or trading.

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

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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^*

Cerniglia Kristina A.

(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		3(1)	A	$259.58	4,252	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	09/05/2025
	** 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 Kristina A. Cerniglia report on Form 4 for LFUS?

The filing reports an acquisition of 3 shares on 09/05/2025, credited as dividends on unvested restricted stock units.

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

The Form 4 states the reporting person beneficially owns 4,252 shares following the reported transaction.

Was the reported acquisition a market purchase or another form of credit?

The filing explicitly explains the shares represent dividends accrued on unvested restricted stock units, not a market purchase.

What price per share is listed on the Form 4 for this transaction?

The form lists a per-share value of $259.58 associated with the reported accrual.

Who signed or authorized the Form 4 filing for this transaction?

The Form 4 shows it was executed by Ryan K. Stafford, Power of Attorney on 09/05/2025.