Form 8-K
8-K — LITTELFUSE INC /DE
Accession: 0000889331-26-000010
Filed: 2026-08-11
Period: 2026-08-06
CIK: 0000889331
SIC: 3613 (SWITCHGEAR & SWITCHBOARD APPARATUS)
Item: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
Item: Regulation FD Disclosure
Item: Financial Statements and Exhibits
Documents
8-K — lfus-20260806.htm (Primary)
EX-99.1 (bod_announcementxaug11xvfi.htm)
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8-K
8-K (Primary)
Filename: lfus-20260806.htm · Sequence: 1
lfus-20260806
0000889331falseLITTELFUSE INC /DE00008893312026-08-062026-08-06
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: August 6, 2026
(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 N. 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 LLC
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 5.02
Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
On August 6, 2026, the Board of Directors (the “Board”) of Littelfuse, Inc. (the “Corporation”) increased the number of members of the Board from eight to nine and appointed Todd Kelsey to the Board to fill the resulting vacancy, effective August 6, 2026. Mr. Kelsey was also appointed to the Compensation Committee of the Board.
Mr. Kelsey will hold office until his successor is duly elected and qualified or upon his earlier death, resignation or removal. There are no arrangements or understandings between Mr. Kelsey and any other person pursuant to which Mr. Kelsey was appointed as a director. The Board has determined that Mr. Kelsey is an independent director under the listing standards of the Nasdaq Stock Market and is independent for the purposes of Rule 10A-3 under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Mr. Kelsey also is not a party to any transactions requiring disclosure pursuant to Item 404(a) of Regulation S-K under the Exchange Act.
Mr. Kelsey is the President and Chief Executive Officer of Plexus Corp. Plexus is a $4.5 billion global technology enterprise with 20,000 employees at 27 sites across seven countries – the U.S, Mexico, China, Malaysia, Thailand, Romania, and the U.K. -- generating well over half its revenue internationally. Plexus partners with leading OEMs to help create the products that build a better world, by designing, manufacturing and servicing some of the world's most transformative products in the Aerospace/Defense, Industrial, SemiCap, Data Center, and Healthcare/Life Sciences markets.
Mr. Kelsey assumed the role of President and Chief Executive Officer of Plexus in 2016. Prior to that, Mr. Kelsey held the positions of Executive Vice President and Chief Operating Officer, Executive Vice President of Global Customer Services and Senior Vice President of Engineering Solutions, among others, of Plexus. He joined Plexus in 1994 as a Design Engineer in the Engineering Solutions group.
Beyond his executive leadership at Plexus, Mr. Kelsey has served on multiple corporate and community boards, including serving as the Vice Chair of the Board and Audit Committee Chair for Steelcase Inc., a global provider of workplace products, furnishings and services. He is currently Vice Chair of the Board for Wisconsin Manufacturers and Commerce. Mr. Kelsey earned a BS and an MS in electrical engineering from the University of Wisconsin-Madison and an MBA from the University of Wisconsin-Oshkosh.
As a non-employee director, Mr. Kelsey will receive compensation in accordance with the Corporation’s non-employee director compensation practices, which are described in the Corporation’s definitive proxy statement filed with the Securities and Exchange Commission on March 12, 2026. As part of such compensation, Mr. Kelsey will receive an initial equity award consisting of a pro-rated portion of the annual award of restricted stock units made to independent directors.
Item 7.01 Regulation FD Disclosure.
A copy of the press release announcing the appointment of Mr. Kelsey is attached as Exhibit 99.1 and incorporated herein by reference.
The exhibit furnished under Item 7.01 of this Current Report shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing by the Company under the Securities Act of 1933 or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.
Item 9.01 Financial Statements and Exhibits.
(d) Exhibits.
Exhibit No. Description
99.1
Press Release, dated August 11, 2026.
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: August 11, 2026
By: /s/ Anne-Marie D’Angelo
Name: Anne-Marie D'Angelo
Senior Vice President, Chief Legal Officer and Corporate Secretary
EX-99.1
EX-99.1
Filename: bod_announcementxaug11xvfi.htm · Sequence: 2
Document
FOR IMMEDIATE RELEASE
David Kelley
224-727-2535
dkelley@littelfuse.com
Littelfuse Appoints Todd Kelsey to Board of Directors
Chicago, August 11, 2026 — Littelfuse, Inc. (NASDAQ: LFUS), a leader in developing smart solutions that enable safe and efficient electrical energy transfer, today announced the appointment of Todd Kelsey to the company’s board of directors. Kelsey was also appointed to the Compensation Committee.
“We are pleased to welcome Todd to the Littelfuse Board of Directors,” said Gordon Hunter, Littelfuse Chairman of the Board of Directors. “Todd brings extensive global experience as well as technology, engineering, and manufacturing expertise across our end markets. His operational perspective, public company board experience, and track record of leading a multinational organization will be valuable as we continue to execute on our strategic priorities and deliver long-term value for our stakeholders.”
Kelsey is the President and Chief Executive Officer of Plexus Corp., a global technology enterprise with approximately 20,000 employees and 27 sites across seven countries. Plexus partners with leading OEMs to design, manufacture and service highly complex products in demanding regulatory environments for markets including Aerospace/Defense, Industrial, SemiCap, Data Center and Healthcare/Life Sciences. Kelsey became President and Chief Executive Officer of Plexus in 2016. He joined the company in 1994 as a design engineer and has held several leadership roles, including Executive Vice President and Chief Operating Officer, Executive Vice President of Global Customer Services and Senior Vice President of Engineering Solutions.
In addition to his leadership at Plexus, Kelsey has served on multiple corporate and community boards, including as Vice Chair of the Board and Audit Committee Chair for Steelcase Inc. He currently serves as Vice Chair of the Board for Wisconsin Manufacturers and Commerce. Kelsey earned bachelor’s and master’s degrees in electrical engineering from the University of Wisconsin-Madison and an MBA from the University of Wisconsin-Oshkosh.
About Littelfuse
Littelfuse, Inc. (NASDAQ: LFUS) is a diversified, industrial technology manufacturing company empowering a sustainable, connected, and safer world. Across more than 20 countries, and with approximately 18,000 global associates, we partner with customers to design and deliver innovative, reliable solutions. Serving over 100,000 end customers, our products are found in a variety of industrial, transportation, and electronics end markets–everywhere, every day. Learn more at Littelfuse.com.
LFUS-F
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