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Littelfuse (NASDAQ: LFUS) director sells 3,000 shares around $450

Filing Impact
(High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Littelfuse director Anthony Grillo reported multiple open-market sales of the company’s Common Stock. On June 11, 2026, he sold an aggregate of 3,000 shares in five separate transactions at prices around $450 per share, including sales reported at weighted average prices of $454.07, $452.75, $451.93, $450.66, and $449.76. Footnotes state these were executed through numerous individual trades within narrow price ranges, with detailed trade-level data available upon request.

Positive

  • None.

Negative

  • None.
Insider GRILLO ANTHONY
Role null
Sold 3,000 shs ($1.36M)
Type Security Shares Price Value
Sale Common Stock 35 $449.76 $16K
Sale Common Stock 256 $450.66 $115K
Sale Common Stock 2,462 $451.93 $1.11M
Sale Common Stock 38 $452.75 $17K
Sale Common Stock 209 $454.07 $95K
Holdings After Transaction: Common Stock — 67,893 shares (Direct, null)
Footnotes (1)
  1. The shares were sold in multiple transactions at prices ranging from $449.31 to $450.21, 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 $450.42 to $450.91, 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 $451.44 to $452.42, 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 $452.46 to $453.03, 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 $454.06 to $454.08, 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.
Shares sold 3,000 shares Total Littelfuse Common Stock sold by Anthony Grillo on June 11, 2026
Sale price example $454.07 per share Weighted average sale price for one transaction group
Sale price example $451.93 per share Weighted average sale price for another transaction group
Lowest price range $449.31–$450.21 Footnoted intra-trade price range for one group of sales
Highest price range $454.06–$454.08 Footnoted intra-trade price range for another group of sales
open-market sale financial
"transaction_action: "open-market sale" for each Common Stock transaction"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
weighted average sale price financial
"footnotes state "This amount represents the weighted average sale price""
Common Stock financial
"security_title is listed as "Common Stock" for all transactions"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 4 regulatory
"INSIDER FILING DATA (Form 4) for Littelfuse director transactions"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
transaction code S regulatory
"transaction_code is "S", described as sale in open market or private transaction"
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
GRILLO ANTHONY
(Last)(First)(Middle)
6133 NORTH RIVER ROAD, SUITE 500
(Street)
ROSEMONT ILLINOIS 60018
(City)(State)(Zip)
UNITED STATES
(Country)		2. Issuer Name and Ticker or Trading Symbol
LITTELFUSE INC /DE [ LFUS ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/11/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock06/11/2026S35D$449.76(1)67,893D
Common Stock06/11/2026S256D$450.66(2)67,637D
Common Stock06/11/2026S2,462D$451.93(3)65,175D
Common Stock06/11/2026S38D$452.75(4)65,137D
Common Stock06/11/2026S209D$454.07(5)64,928D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. The shares were sold in multiple transactions at prices ranging from $449.31 to $450.21, 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 $450.42 to $450.91, 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 $451.44 to $452.42, 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 $452.46 to $453.03, 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 shares were sold in multiple transactions at prices ranging from $454.06 to $454.08, 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.
Remarks:
/s/Anne-Marie D'Angelo, Power of Attorney06/11/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did Anthony Grillo report for Littelfuse (LFUS)?

Director Anthony Grillo reported selling Littelfuse Common Stock in several open-market transactions. On June 11, 2026, he sold a total of 3,000 shares in five separate trades, all disclosed in a Form 4 insider filing.

How many Littelfuse (LFUS) shares did Anthony Grillo sell and on what date?

Anthony Grillo sold 3,000 shares of Littelfuse Common Stock on June 11, 2026. The Form 4 filing shows these shares were disposed of through five individual open-market sale transactions executed on the same date.

At what prices did Anthony Grillo’s Littelfuse (LFUS) stock sales occur?

The reported sales occurred at weighted average prices around $450 per share. Individual line items show averages of $454.07, $452.75, $451.93, $450.66, and $449.76, with footnotes noting narrower intra-trade price ranges for each group of transactions.

What does the Form 4 say about the price ranges for Anthony Grillo’s LFUS trades?

Footnotes explain that shares were sold in multiple trades within ranges such as $449.31–$450.21, $450.42–$450.91, $451.44–$452.42, $452.46–$453.03, and $454.06–$454.08. Each reported price is a weighted average sale price for those grouped trades.

What type of transactions did Anthony Grillo use to sell Littelfuse (LFUS) shares?

The Form 4 classifies each transaction as an open-market sale of Littelfuse Common Stock. The transaction code is S, described as a sale in an open market or private transaction, with direct ownership reported for the shares involved.

How many individual sale transactions did the Littelfuse (LFUS) Form 4 report?

The structured summary shows five sale transactions for Littelfuse Common Stock. Together, these sales total 3,000 shares disposed, with each line reflecting a separate weighted average sale price and corresponding footnote describing underlying trade price ranges.