Littelfuse (LFUS) SVP David Ruppel exercises options and sells 1,495 shares

Rhea-AI Filing Summary

Littelfuse senior vice president David Ruppel reported an option exercise and same-day share sales. On February 2, 2026, he exercised 1,113 stock options for Littelfuse common stock at $251.82 per share, increasing his directly held common shares.

That same day, he sold 1,113 shares at $320.78 per share and an additional 382 shares at $322.31 per share. After these transactions, he directly owned 4,965 shares of common stock and 2,224 stock options, with the option grant for 3,337 shares vesting in thirds annually starting one year after the August 14, 2024 grant date.

Insider Trade Summary

Net Seller: 1,495 shares ($480,151)

Net Sell 4 txns

Insider Ruppel David

Role SVP & GM Transportation Bus.

Sold 1,495 shs ($480K)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	1,113	$0.00	--
Exercise	Common Stock	1,113	$251.82	$280K
Sale	Common Stock	1,113	$320.78	$357K
Sale	Common Stock	382	$322.31	$123K

Holdings After Transaction: Stock Option (right to buy) — 2,224 shares (Direct); Common Stock — 6,460 shares (Direct)

Footnotes (1)

1. [object Object]

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^*

Ruppel David

(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 Transportation Bus.

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

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	02/02/2026		M		1,113	A	$251.82	6,460	D
Common Stock	02/02/2026		S		1,113	D	$320.78	5,347	D
Common Stock	02/02/2026		S		382	D	$322.31	4,965	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
Stock Option (right to buy)	$251.82	02/02/2026		M			1,113	(1)	08/14/2031	Common Stock	1,113	$0	2,224	D

Explanation of Responses:

1. The option for 3,337 shares vests in increments of one third annually beginning on the first anniversary of the August 14, 2024 date of grant.

Remarks:

	/s/Ryan K. Stafford, Power of Attorney	02/04/2026
	** 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 transactions did LFUS executive David Ruppel report on February 2, 2026?

David Ruppel reported exercising 1,113 Littelfuse (LFUS) stock options at $251.82 per share and selling 1,113 shares at $320.78 plus 382 shares at $322.31, all on February 2, 2026.

How many Littelfuse (LFUS) shares does David Ruppel own after this Form 4?

After the reported transactions, David Ruppel directly owns 4,965 shares of Littelfuse common stock. He also holds 2,224 stock options, tied to an option grant originally covering 3,337 shares that vests in three equal annual installments.

What prices were reported for David Ruppel’s LFUS stock sales?

On February 2, 2026, David Ruppel reported selling 1,113 Littelfuse shares at $320.78 each and an additional 382 shares at $322.31 each. These sales followed his exercise of 1,113 stock options at an exercise price of $251.82 per share.

What is the vesting schedule for David Ruppel’s Littelfuse stock option grant?

The reported stock option relates to an award for 3,337 shares of Littelfuse common stock. According to the disclosure, it vests in one-third increments annually, beginning on the first anniversary of the August 14, 2024 grant date.

What position does David Ruppel hold at Littelfuse (LFUS)?

David Ruppel is identified as an officer of Littelfuse, serving as SVP & GM Transportation Bus. The Form 4 shows his role in Littelfuse’s transportation business segment and reports directly held common stock and stock option transactions.

Were David Ruppel’s Littelfuse (LFUS) transactions direct or through another entity?

The Form 4 indicates all reported holdings and transactions are direct (D) ownership by David Ruppel. No footnotes state that the shares or options are held by a separate trust, LLC, or other indirect ownership vehicle.