Ultra Clean Holdings, Inc.

From time to time, we are subject to various legal proceedings and claims, either asserted or unasserted, that arise in the ordinary course of business. Although the outcome of the various legal proceedings and claims cannot be predicted with certainty, we have not had a history of outcomes to date that have been material to our consolidated statement of operations and do not believe that any of these proceedings or other claims will have a material adverse effect on our consolidated financial condition or results of operations.

As previously disclosed in our Quarterly Report on Form 10-Q for the quarterly period ended March 28, 2025, on March 24, 2025, a putative securities class action was filed against the Company and certain of its officers in the United States District Court for the Northern District of California, and on August 1, 2025, a derivative suit was filed against the Company's Board of Directors and the Company in the Superior Court of California, County of Alameda. Both lawsuits have been voluntarily dismissed on December 16, 2025 and December 26, 2025, respectively.