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Vanguard Capital Management, together with specified affiliates, reports beneficial ownership of 2,248,424 shares of Ultra Clean Holdings Inc common stock, representing 5.01% of the class as of June 30, 2026.
The group has sole voting power over 339,398 shares and sole dispositive power over 2,248,424 shares, with no shared voting or dispositive power. The position includes securities held by Vanguard funds and managed accounts over which these entities exercise voting and/or dispositive authority; no other single underlying investor has an interest in more than 5% of the class.
Ultra Clean Holdings, Inc. is appointing Michael Keogh as Chief Financial Officer, effective August 5, 2026, succeeding Sheri Savage and reporting to CEO James Xiao. The company highlights his 25+ years of finance and operations leadership across semiconductor, advanced manufacturing, automotive, and technology industries.
Under his offer letter, Keogh will receive a $595,000 annual base salary, a target bonus equal to 85% of base salary, and an initial grant of Company RSUs valued at $2,000,000. RSUs vest in equal parts over three years, while PSUs vest after a three-year performance period under the company’s PSU program.
If terminated without cause or he resigns for good reason before a change in control, Keogh is eligible for 100% of base salary, 100% of his annual bonus based on a three-year average, 12 months of COBRA premiums, and accelerated vesting of equity awards that would vest within 12 months. If termination occurs around a change in control under his Change in Control Severance Agreement, cash severance increases to 150% of base salary plus bonus, COBRA coverage extends to 24 months, and all unvested equity awards accelerate.
Ultra Clean Holdings, Inc. Chief Accounting Officer Brian E. Harding reported open-market sales of a total of 3,837 shares of common stock on July 2, 2026. The sales were executed in three tranches at weighted average prices of about $126.92, $128.37 and $130.12 per share, with individual trades occurring within specified price ranges. The transactions were carried out under a pre-arranged Rule 10b5-1 trading plan, indicating they were scheduled in advance rather than timed discretionarily. After these sales, Harding continues to directly hold 33,581 shares of Ultra Clean common stock.
Brian Harding filed a Form 144 via Morgan Stanley Smith Barney LLC to register 3,837 shares of Common Stock for resale.
The filing also records prior open-market sales: 16,988 shares sold on 06/04/2026 for $1,519,877.97 and 4,000 shares sold on 05/05/2026 for $320,000.00. The securities listed to be sold are restricted stock dated 06/24/2025.
Ultra Clean Holdings, Inc. Chief Accounting Officer Brian E. Harding received an equity award of 9,363 shares of common stock on June 26, 2026 as a grant or award acquisition. Following this grant, he directly holds 37,418 shares. A related footnote states these restricted stock units vest over three years, with equal parts vesting on each anniversary of the June 26, 2026 vesting commencement date.
Ultra Clean Holdings, Inc. reported that CFO Sheri Savage sold shares of the company’s common stock in a series of open-market transactions. On June 4, 2026, she sold a total of 14,421 shares of Ultra Clean common stock across 29 separate trades.
The reported sale prices ranged from about $86.59 to $91.92 per share, based on weighted-average price ranges disclosed in multiple footnotes. These are non-derivative transactions in common stock, and the filing describes them as sales in the open market or private transactions.
Ultra Clean Holdings, Inc. CFO Sheri Savage reported open‑market or private sales of 15,766 shares of common stock on June 4, 2026, across 17 non‑derivative transactions, with footnotes describing weighted‑average price ranges from $85.7600 up to $91.9500 per share. Following these trades, she directly holds 50,710 common shares.
Ultra Clean Holdings' chief accounting officer Brian E. Harding sold 16,988 shares of common stock in open-market transactions. The trades occurred on June 4, 2026 across 22 separate sales. Reported sale prices ranged from about $85.54 to $91.86 per share, based on weighted-average prices and detailed price ranges disclosed in the footnotes.
Ultra Clean Holdings, Inc. General Counsel and Secretary Paul Yoonku Cho reported an open-market sale of company common stock. On June 2, 2026, he sold 944 shares of common stock at a price of $89.37 per share.
After this transaction, Cho directly holds 22,941 shares of Ultra Clean common stock. This filing records a single, relatively small open-market sale and shows his remaining equity stake in the company following the trade.