LITTELFUSE INC /DE 10-Q

ITEM 5. OTHER INFORMATION None of the Company’s directors or officers adopted , modified, or terminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement during the Company’s fiscal quarter ended July 1, 2023. ITEM 6. EXHIBITS Exhibit Description 10.1 First Amendment to Amended and Restated Littelfuse, Inc. Long-Term Incentive Plan (filed as Exhibit 10.1 to the Company’s Form 8-K filed April 28, 2023, File No. 0-20388, and incorporated herein by reference). 31.1* Certification of David W. Heinzmann, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2* Certification of Meenal A. Sethna, Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1** Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101 The following financial information from LITTELFUSE, Inc.'s Quarterly Report on Form 10-Q for the quarter ended July 1, 2023 formatted in Inline XBRL (Extensible Business Reporting Language) includes: (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Net Income, (iii) the Condensed Consolidated Statements of Comprehensive Income, (iv) the Consolidated Statements of Stockholders' Equity , (v) the Condensed Consolidated Statements of Cash Flows, and (vi) Notes to the Condensed Consolidated Financial Statements. 104 The cover page from this Quarterly Report on Form 10-Q for the quarter ended July 1, 2023, formatted in Inline XBRL. * Filed herewith. ** Furnished herewith. 39 Table of Contents SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Quarterly Report on Form 10-Q for the quarter ended July 1, 2023, to be signed on its behalf by the undersigned thereunto duly authorized. Littelfuse, Inc. By: /s/ Meenal A. Sethna Meenal A. Sethna Executive Vice President and Chief Financial Officer Date: August 2, 2023 By: /s/ Jeffrey G. Gorski Jeffrey G. Gorski Senior Vice President and Chief Accounting Officer 40