Ultra Clean Holdings, Inc. 2026 Annual Meeting of Stockholders

This filing summarizes the results of the 2026 Annual Meeting of Stockholders for Ultra Clean Holdings, Inc., held on May 22, 2026. Stockholders considered and approved five proposals. Proposal 1 involved the election of eight directors for one-year terms, all of whom received a significant majority of votes in favor. Proposal 2 was the ratification of PricewaterhouseCoopers LLP as the Company’s independent registered public accounting firm for fiscal year 2026, which was also overwhelmingly approved. Proposal 3, an advisory vote on executive compensation, received majority approval. Proposals 4 and 5 concerned amendments to the Company’s stock incentive plan and employee stock purchase plan, respectively, to increase the number of shares available for issuance. Both proposals to amend these plans were approved by the stockholders. The filing includes detailed vote counts for each proposal, including votes for, against, abstentions, and broker non-votes where applicable.