ONTO INNOVATION INC. 10-Q

Item 5. Other Information Rule 10b5-1 Plan Elections During the fiscal quarter ended September 30, 2023, none of our directors or officers (as defined in Rule 16a-1 under the Exchange Act) adopted, modified or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 105b-1 trading arrangement” (as those terms are defined in Item 408 of Regulation S-K). Item 6. Exh ibits Exhibit No. Description 3.1 Amended and Restated Certificate of Incorporation of Onto Innovation Inc., dated October 25, 2019, incorporated by reference to Exhibit 3.2 to the Company’s Form 8-K filed with the SEC on October 28, 2019 (File No. 001-39110). 3.2 Amended and Restated Bylaws of Onto Innovation Inc., dated January 22, 2020, incorporated by reference to Exhibit 3.1 to the Company’s Form 8-K filed with the SEC on January 27, 2020 (File No. 001-39110). 10.1 Employment Agreement, dated September 15, 2023, by and between Onto Innovation Inc. and Michael P. Plisinski, incorporated by reference to Exhibit 10.1 to the Company’s Form 8-K filed with the SEC on September 15, 2023 (File No. 001-39110). 31.1* Rule 13a-14(a) Certification of Chief Executive Officer of the Registrant pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 31.2* Rule 13a-14(a) Certification of Chief Financial Officer of the Registrant pursuant to Section 302 of the Sarbanes-Oxley Act of 2002. 32.1** Certification of the Chief Executive Officer pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 32.2** Certification of the Chief Financial Officer pursuant to 18 U.S.C Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. 101.INS* Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document. 101.SCH* Inline XBRL Taxonomy Extension Schema Document 101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF* Inline XBRL Taxonomy Extension Definition Linkbase Document 101.LAB* Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase Document 104* Cover Page Interactive Data File (formatted as Inline XBRL and included in Exhibit 101) * Filed herewith. ** Furnished herewith. 44 Table of Contents SIGNATURES 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. Onto Innovation Inc. Date: November 9, 2023 By: /s/ Michael P. Plisinski Michael P. Plisinski Chief Executive Officer Date: November 9, 2023 By: /s/ Mark R. Slicer Mark R. Slicer Chief Financial Officer and Principal Accounting Officer 45