Littelfuse (LFUS) SVP sells 5,488 shares after option exercise

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Littelfuse senior vice president Kim Peter Sung-Jip reported exercising employee stock options and selling shares of the company’s common stock. On February 2, 2026, he exercised options for 5,488 shares at an exercise price of $166.63 per share.

On the same day, he sold a total of 5,488 common shares in several market transactions at weighted average prices ranging from about $325.44 to $328.14 per share, as detailed in the price ranges in the footnotes. After these transactions, he directly owned 10,175 Littelfuse shares.

Insider Trade Summary

Net Seller: 5,488 shares ($1,790,985)

Net Sell 6 txns

Insider Kim Peter Sung-Jip

Role SVP & GM Industrial Business

Sold 5,488 shs ($1.79M)

Type	Security	Shares	Price	Value
Exercise	Stock Option (right to buy)	5,488	$0.00	--
Exercise	Common Stock	5,488	$166.63	$914K
Sale	Common Stock	82	$328.14	$27K
Sale	Common Stock	1,519	$327.39	$497K
Sale	Common Stock	1,787	$326.44	$583K
Sale	Common Stock	2,100	$325.44	$683K

Holdings After Transaction: Stock Option (right to buy) — 0 shares (Direct); Common Stock — 15,663 shares (Direct)

Footnotes (1)

The shares were sold in multiple transactions at prices ranging from $328.03 to $328.40, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The shares were sold in multiple transactions at prices ranging from $327.00 to $327.97, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The shares were sold in multiple transactions at prices ranging from $326.01 to $326.98, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The shares were sold in multiple transactions at prices ranging from $325.00 to $325.99, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. The option for 5,488 shares vests in increments of one third annually beginning on the first anniversary of the July 10, 2020 date of grant.

Form 4 Insider Transactions: What Each Field Means →

02/04/2026 - 04:44 PM

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^*

Kim Peter Sung-Jip

(Last)

(First)

(Middle)

6133 NORTH RIVER ROAD, SUITE 500

(Street)

ROSEMONT

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)
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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/02/2026		M		5,488	A	$166.63	15,663	D
Common Stock	02/02/2026		S		82	D	$328.14⁽¹⁾	15,581	D
Common Stock	02/02/2026		S		1,519	D	$327.39⁽²⁾	14,062	D
Common Stock	02/02/2026		S		1,787	D	$326.44⁽³⁾	12,275	D
Common Stock	02/02/2026		S		2,100	D	$325.44⁽⁴⁾	10,175	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Stock Option (right to buy)	$166.63	02/02/2026		M			5,488	⁽⁵⁾	07/10/2027	Common Stock	5,488	$0	0	D

Explanation of Responses:

1. The shares were sold in multiple transactions at prices ranging from $328.03 to $328.40, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

2. The shares were sold in multiple transactions at prices ranging from $327.00 to $327.97, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

3. The shares were sold in multiple transactions at prices ranging from $326.01 to $326.98, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

4. The shares were sold in multiple transactions at prices ranging from $325.00 to $325.99, inclusive. This amount represents the weighted average sale price of such transactions. The reporting person undertakes to provide full information regarding the number of shares sold at each separate price upon request of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer.

5. The option for 5,488 shares vests in increments of one third annually beginning on the first anniversary of the July 10, 2020 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Littelfuse (LFUS) SVP Kim Peter Sung-Jip report?

Kim Peter Sung-Jip reported exercising stock options for 5,488 Littelfuse shares, then selling 5,488 common shares in multiple market transactions on February 2, 2026. These trades converted option-based holdings into directly held shares sold at prevailing market prices.

How many Littelfuse (LFUS) shares did the SVP sell and at what prices?

He sold 5,488 Littelfuse common shares in several trades on February 2, 2026, at weighted average prices around $325–$328 per share. Footnotes show price ranges from $325.00 to $328.40, reflecting multiple individual executions within those bands.

What stock options did the Littelfuse (LFUS) executive exercise?

He exercised a stock option covering 5,488 Littelfuse common shares at an exercise price of $166.63 per share. The option was granted on July 10, 2020 and vested in one-third increments annually beginning on the first anniversary of that grant date.

How many Littelfuse (LFUS) shares does the SVP own after these transactions?

After exercising options and selling shares on February 2, 2026, he directly owned 10,175 Littelfuse common shares. This figure reflects his remaining position after the reported sales, as shown in the post-transaction ownership column of the non-derivative securities table.

Were the Littelfuse (LFUS) insider sales single trades or multiple executions?

The sales occurred as multiple executions grouped into four reportable transactions, each disclosed with a weighted average sale price. Footnotes specify narrower price ranges for each group and state that detailed per-trade prices and volumes are available upon request from stakeholders.

What role does Kim Peter Sung-Jip hold at Littelfuse (LFUS)?

Kim Peter Sung-Jip is identified as an officer of Littelfuse with the title “SVP & GM Industrial Business.” This senior leadership position ties him closely to the company’s industrial segment operations and makes his equity transactions subject to public reporting requirements.