Ultra Clean Holdings, Inc. filings document the company's operating results, governance matters, and capital-structure activity as a Nasdaq-listed supplier to the semiconductor industry. Form 8-K reports cover quarterly and annual financial results, executive and board leadership changes, material agreements, and financing transactions.
The company's regulatory record also includes proxy materials for annual meeting and shareholder voting matters, along with disclosures on its common stock, credit-facility amendments, and 0.00% Convertible Senior Notes due 2031. These filings describe formal updates to Ultra Clean's financing arrangements, officer succession, board oversight, and public-company reporting obligations.
Ultra Clean Holdings, Inc. (UCTT) Chief Executive Officer Jinsong Xiao had 19,188 common shares automatically withheld on September 30, 2026, to pay tax liability arising from the partial settlement of restricted stock unit awards that vested. The transaction reported a price of $81.06 per share. Xiao’s reported direct common-stock holdings after the transaction were 129,935 shares.
Ultra Clean Holdings, Inc. (UCTT) reports that director Alexander M. Davern beneficially owns no securities.
Ultra Clean Holdings, Inc. appointed Alexander Davern to its Board of Directors effective September 28, 2026. Davern spent 1994 to 2020 at National Instruments, serving as chief financial officer from 1998 to 2010, chief operating officer from 2010 to 2016, and chief executive officer from 2017 to 2020; he remained a director until its acquisition by Emerson Electric in 2023. He currently serves on the boards of Cirrus Logic, Inc., Computer Modelling Group Ltd. and Spectris plc, and has more than 20 years of public-company board experience.
Ultra Clean Holdings, Inc. (symbol: UCTT) is the issuer of record for a Form 4 filing submitted to the SEC. Keogh Michael Dennis reported acquisition or exercise transactions in this Form 4 filing.
Ultra Clean Holdings, Inc. (UCTT) reported that its Chief Financial Officer, Michael Dennis Keogh, received a grant of 20,917 shares of Common Stock on August 31, 2026 as a stock-based award at a stated price of $0.00 per share. According to the award terms, these shares are in the form of restricted stock units that vest over three years, with equal portions vesting on each anniversary of the vesting commencement date of August 31, 2026. Following this grant, Keogh is reported to hold 20,917 shares directly, and no Rule 10b5-1 trading plan is indicated.
Ultra Clean Holdings, Inc. (UCTT) reported an initial statement of beneficial ownership for Michael Dennis Keogh, who serves as Chief Financial Officer. The filing states that no securities of Ultra Clean Holdings, Inc. are currently beneficially owned by this reporting person.
Ultra Clean Holdings, Inc. (UCTT) reported that Christopher S. Cook, President, Products Division, had 12,497 shares of common stock automatically withheld on August 31, 2026 to pay tax liability from the partial settlement of vested restricted stock units. Following this, he holds 98,126 shares directly and 4,100 shares indirectly by trust.
Ultra Clean Holdings, Inc. entered into a Sales Agreement with UBS Securities LLC, Barclays Capital Inc., Craig-Hallum Capital Group LLC and Oppenheimer & Co. Inc. Under this agreement, the company may, at its sole discretion, offer and sell from time to time up to $400 million of its common stock through an at-the-market offering program.
The Sales Agents will use reasonable efforts to sell shares in various permitted ways, including ordinary broker transactions, market-maker trades, Nasdaq or other venues, over-the-counter, or privately negotiated transactions, based on the company’s specific instructions. The company is not obligated to sell any shares and may suspend or terminate sales at any time. The Sales Agents may receive a commission of up to 3.0% of the gross offering proceeds, plus expense reimbursement and customary indemnification and contribution rights. Sales will be made under the company’s automatic shelf registration statement on Form S-3 (Registration No. 333-278195) using a base prospectus and an August 14, 2026 prospectus supplement.
Ultra Clean Holdings, Inc. is establishing an at-the-market offering program under an existing shelf registration, permitting sales from time to time of shares of its common stock with an aggregate offering price of up to $400,000,000 through UBS Securities, Barclays Capital, Craig-Hallum and Oppenheimer as sales agents or principals. Shares may be sold on Nasdaq (symbol UCTT) or other venues at prevailing, related, or negotiated prices, with the company paying the agents up to 3.0% of the gross sales price as commission plus certain expenses. Net proceeds are intended for general corporate purposes, including working capital, sales and marketing, product development, general and administrative activities, capital expenditures, and potentially acquisitions of complementary businesses or technologies, although there are no specific acquisition agreements in place. The filing highlights risks such as stock price and market volatility, potential dilution and varying purchase prices among investors, broad management discretion over use of proceeds, and the possible stock-price impact of capped call hedge transactions related to the company’s 2031 convertible notes.
Invesco Ltd., a Bermuda-based asset manager, reports beneficial ownership of common stock of Ultra Clean Holdings Inc. Invesco, as a parent holding company to its investment adviser subsidiaries, may be deemed to beneficially own 3,145,489 shares of Ultra Clean common stock, representing 7.0% of the class.
Invesco has sole voting power over 3,088,399 shares and sole dispositive power over 3,145,489 shares, with no shared voting or dispositive power. The shares are held of record by clients of Invesco’s advisers, and no single client has greater than 5% economic ownership. Subsidiaries involved include Invesco Advisers, Inc., Invesco Investment Advisers LLC, and Invesco Capital Management LLC.
Capital World Investors filed a Schedule 13G reporting beneficial ownership of Ultra Clean Holdings, Inc. common stock. The firm is deemed to beneficially own 2,580,132 shares, representing 5.8% of the class, based on 44,828,352 shares believed to be outstanding as of June 30, 2026.
Capital World Investors reports sole voting power and sole dispositive power over all 2,580,132 shares, with no shared voting or dispositive power. The filing notes that ownership is held through Capital World Investors as a division of various Capital Group investment management entities, and that SMALLCAP World Fund, Inc. has the right to receive dividends and sale proceeds on more than 5% of the class.