Other Information
−Removed: The following exhibits are filed with this quarterly Report on Form 10-Q for the quarter ended September 27, 2024:
−Removed: 31.1 Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
+Added: The following exhibits are filed with this quarterly Report on Form 10-Q for the quarter ended March 28, 2025:
+Added: 31.1 Certification of Inter im Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2 Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
−Removed: 32.1 Certification of the Chief Executive Officer and the Chief Financial Officer pursuant to 18 U.S.C.
+Added: 32.1 Certification of the Interim Chief Executive Officer and 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.
8 unchanged sentences
ULTRA CLEAN HOLDINGS, INC.
−Removed: October 29, 2024
−Removed: Chief Executive Officer
+Added: April 29, 2025
+Added: /S/ CLARENCE L.
+Added: Interim Chief Executive Officer
(Principal Executive Officer and duly
authorized signatory)
−Removed: October 29, 2024
+Added: April 29, 2025
/S/ SHERI SAVAGE
3 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.