FORMFACTOR INC 10-Q

Item 5. Other Information Rule 10b5-1 Trading Arrangements During the quarter ended September 27, 2025, no director or officer of the Company adopted , modified, or terminated a “Rule 10b5-1 trading arrangement” or a “non-Rule 10b5-1 trading arrangement” as each term is defined in Item 408(a) of Regulation S-K, except as follows: On July 31, 2025 , Dr. Mike Slessor , the Company’s Chief Executive Officer , terminated a Rule 10b5-1 trading arrangement for the potential sale of up to 84,002 shares of our common stock. This arrangement was initially adopted on November 20, 2023. On August 19, 2025 , Dr. Mike Slessor , the Company's Chief Executive Officer , adopted a Rule 10b5-1 trading agreement. Under this arrangement, a total of up to 169,624 shares of our common stock may be sold, subject to certain conditions, after November 19, 2025 and before the arrangement expires on November 19, 2027 . The above arrangements are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act. 36 Item 6. Exhibits The following exhibits are filed herewith and this list constitutes the exhibit index. Exhibit Incorporated by Reference Filed Number Exhibit Description Form Date Number Herewith 3.1 Restated Certificate of Incorporation of FormFactor, Inc. 10-K 2/21/2025 000-50307 3.2 Amended and Restated By-laws of FormFactor, Inc. 8-K 7/30/2025 000-50307 10.1 Credit Agreement, dated as of July 29, 2025, by and among FormFactor, Inc. and Wells Fargo Bank, National Association, as Administrative Agent, and the lenders party thereto from time to time 8-K 7/30/2025 000-50307 31.01 Certification of Chief Executive Officer pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 X 31.02 Certification of Chief Financial Officer pursuant to 15 U.S.C. Section 7241, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 X 32.01 Certification of Chief Executive Officer and 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 The following financial statements from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 27, 2025, formatted in Inline XBRL: (i) Condensed Consolidated Balance Sheets, (ii) Condensed Consolidated Statements of Income, (iii) Condensed Consolidated Statements of Comprehensive Income, (iv) Condensed Consolidated Statements of Stockholders’ Equity, (v) Condensed Consolidated Statements of Cash Flows, and (vi) Notes to Condensed Consolidated Financial Statements, tagged as blocks of text and including detailed tags X 101.INS XBRL Instance Document X 101.SCH XBRL Taxonomy Extension Schema Document X 101.CAL XBRL Taxonomy Extension Calculation Linkbase Document X 101.DEF XBRL Taxonomy Extension Definition Linkbase Document X 101.LAB XBRL Taxonomy Extension Label Linkbase Document X 101.PRE XBRL Taxonomy Extension Presentation Linkbase Document X 104 The cover page from the Company’s Quarterly Report on Form 10-Q for the quarter ended September 27, 2025, formatted in Inline XBRL (included as Exhibit 101) X ______________________________________ * This exhibit shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Securities Exchange Act of 1934, whether made before or after the date hereof and irrespective of any general incorporation language in any filings. 37 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. FormFactor, Inc. Date: November 4, 2025 By: /s/ ARIC MCKINNIS Aric McKinnis Chief Financial Officer (Duly Authorized Officer, Principal Financial Officer, and Principal Accounting Officer) 38