Other Information
−Removed: The following exhibits are filed with this quarterly Report on Form 10-Q for the quarter ended June 27, 2025:
+Added: The following exhibits are filed with this quarterly Report on Form 10-Q for the quarter ended September 26, 2025:
+Added: 10.1 Severance Benefits for Executive Officers, dated as of August 1, 2025
+Added: 10.2 Chief Executive Officer Change in Control Severance Plan, dated as of September 2, 2025
+Added: 10.3 Chief Business Officer Change in Control Severance Plan , dated as of August 24 , 2025
31.1 Certification of Interim Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
9 unchanged sentences
104 Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)
+Added: *Filed herewith
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.
ULTRA CLEAN HOLDINGS, INC.
−Removed: July 29, 2025
−Removed: /S/ CLARENCE L.
−Removed: Interim Chief Executive Officer
+Added: October 29, 2025
+Added: /S/ JAMES XIAO
+Added: Chief Executive Officer
(Principal Executive Officer and duly
authorized signatory)
−Removed: July 29, 2025
+Added: October 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.