0000889331 false LITTELFUSE INC /DE 0000889331 2025-10-29 2025-10-29
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20579

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
Date of Report: October 29, 2025
(Date of earliest event reported)
LITTELFUSE, INC.
(Exact name of registrant as specified in its charter)

Delaware | 0-20388 | 36-3795742
(State of other jurisdiction of incorporation) | (Commission File Number) | (IRS Employer Identification No.)

6133 North River Road, Suite 500, Rosemont, IL 60018
(Address of principal executive offices) (Zip Code)
Registrant’s telephone number, including area code: (773) 628-1000
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class |  | Trading Symbol |  | Name of exchange on which registered
Common Stock, par value $0.01 per share |  | LFUS |  | NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02 | Results of Operations and Financial Condition

The information contained within Item 2.02 of this Form 8-K and the Exhibits attached hereto shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and shall not be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such filing.
On October 29, 2025, Littelfuse, Inc. (the “Company”) issued a press release announcing the results of its operations for the quarter ended September 27, 2025. A copy of the press release is attached as Exhibit 99.1 to this Form 8-K and incorporated by reference to this Item 2.02 as if fully set forth herein. A copy of the press release will also be available on the Company’s website.

Item 7.01 | Regulation FD Disclosure

To supplement the information in the attached press release, the Company has also prepared a presentation, which will be available on the Company’s website at https://investor.littelfuse.com/events-and-presentations and is attached hereto as Exhibit 99.2 to this Current Report on Form 8-K.
The information contained in the press release and investor presentation attached to this Form 8-K includes forward-looking statements that are intended to be covered by the safe-harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include but are not limited to comments with respect to the objectives and strategies, financial condition, results of operations and business of the Company. These forward-looking statements involve numerous assumptions, inherent risks and uncertainties, both general and specific, and the risk that predictions and other forward-looking statements will not be achieved. The Company cautions you not to place undue reliance on these forward-looking statements as a number of important factors could cause actual future results to differ materially from the plans, objectives, expectations, estimates and intentions expressed in such forward-looking statements.
A copy of the press release is also posted on the Company's website.

Item 9.01 | Financial Statements and Exhibits.

(d) | Exhibits |
| The following exhibits are furnished with this Form 8-K: |
| 99.1 Press Release dated October 29, 2025 |
| 99.2 Littelfuse Presentation dated October 29, 2025 |
| 104 Cover Page Interactive Data File (embedded within the Inline XBRL document) |

Signature
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| Littelfuse, Inc.
Date: October 29, 2025 | By: /s/ Abhishek Khandelwal
| Abhishek Khandelwal Executive Vice President and Chief Financial Officer