Littelfuse (NASDAQ: LFUS) files Form 144 proposing insider share sales

Rhea-AI Filing Summary

Littelfuse, Inc. filed a Form 144 on 06/18/2026 reporting proposed sales of Common Stock. The notice lists securities tied to a stock option exercise (689 shares) and three restricted stock vestings (380, 257, 63 shares) dated in April 2026.

The filing shows 25,288,904 shares outstanding as of 06/18/2026 and an aggregate value figure of $670,169.62 in the excerpt.

Key Figures

Shares outstanding: 25,288,904 shares Option exercise shares listed: 689 shares Restricted stock vesting - April 24: 380 shares +3 more

6 metrics

Shares outstanding 25,288,904 shares as of 06/18/2026

Option exercise shares listed 689 shares Stock Option Exercise dated 07/10/2020 (sale notice dated 06/18/2026)

Restricted stock vesting - April 24 380 shares Restricted Stock Vesting dated 04/24/2026

Restricted stock vesting - April 25 257 shares Restricted Stock Vesting dated 04/25/2026

Restricted stock vesting - April 27 63 shares Restricted Stock Vesting dated 04/27/2026

Aggregate value figure $670,169.62 numeric value present in excerpt (06/18/2026)

Key Terms

Form 144, Stock Option Exercise, Restricted Stock Vesting, Securities To Be Sold

4 terms

Form 144 regulatory

"Filer Information | 144: Filer Information"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Stock Option Exercise financial

"Common | 07/10/2020 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Restricted Stock Vesting financial

"Common | 04/24/2026 | Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Merrill 8890 Lyra Dr 5th Flr Columbus OH 43240	1389	670169.62	25288904	06/18/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	07/10/2020	Stock Option Exercise	Littelfuse, Inc			689	06/18/2026	Cash
Common	04/24/2026	Restricted Stock Vesting	Littelfuse, Inc			380	04/24/2026	NA
Common	04/25/2026	Restricted Stock Vesting	Littelfuse, Inc			257	04/25/2026	NA
Common	04/27/2026	Restricted Stock Vesting	Littelfuse, Inc			63	04/27/2026	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks

Date of Notice

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What did Littelfuse (LFUS) report on Form 144 filed 06/18/2026?

The company reported proposed sales of Common Stock by an insider on 06/18/2026. The excerpt lists a stock option exercise of 689 shares and restricted stock vestings of 380, 257, and 63 shares from April 2026.

How many shares does the Form 144 excerpt show as outstanding for Littelfuse (LFUS)?

The excerpt shows 25,288,904 shares outstanding as of 06/18/2026. This figure is presented in the filing excerpt and is a baseline company capitalization figure in the provided content.

What transaction types are listed in the Littelfuse Form 144 excerpt?

The excerpt lists a Stock Option Exercise and multiple Restricted Stock Vesting events dated in April 2026. These are the security origins tied to the proposed sales shown in the notice.

What monetary figure appears in the Form 144 excerpt for Littelfuse (LFUS)?

The excerpt includes a numeric value of $670,169.62. The filing text presents this figure alongside other securities data in the provided excerpt.