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.
Frontier Capital Management Co., LLC disclosed beneficial ownership of 2,754,163 shares of Ultra Clean Holdings, Inc. common stock, representing 6.1% of the class. The filer reports no sole voting or dispositive power; instead it reports shared voting power of 1,615,497 shares and shared dispositive power for 2,754,163 shares. The reporting person is classified as an investment adviser (IA).
The filing includes a certification that the securities are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer. No group, subsidiary, or additional account-level details or transactions are reported in the statement.
Ultra Clean Holdings (UCTT) filed an 8-K disclosing major leadership changes. James “Jinsong” Xiao, a 19-year Applied Materials veteran, will become Chief Executive Officer and join the Board on 2 Sep 2025. Current CEO Clarence Granger, in the role only since March, will step down and remain non-executive chair, providing continuity.
Compensation & incentives: Xiao will receive a $710 k base salary, 105% target bonus, a $600 k sign-on cash bonus, and equity valued at $5 m (one-time $2 m RSUs plus prorated 2025 grant split 45% RSUs / 55% PSUs). RSUs vest annually over three years; PSUs cliff-vest after a three-year performance period. Severance equals 150% salary & bonus (24 months on a change-in-control) plus COBRA and accelerated vesting.
Additional move: Christopher S. Cook, President of the Products Division, is promoted to Chief Business Officer effective immediately. His new package: $595 k base, 85% bonus target, and $1.7 m RSUs vesting over three years. Severance mirrors CFO/COO terms (100% salary & bonus; elevates to 150% on CIC).
Investor take: Hiring a seasoned semiconductor operator may strengthen strategy, yet the rapid CEO turnover and sizable equity grants add governance and dilution considerations.