On July 9, Ultra Clean Holdings rose 8.3% in after-hours trading, trading at $106.17/share, with turnover of $5.84 million.

On the news front, the company announced the appointment of Michael Keogh as its new Chief Financial Officer, effective August 5, succeeding former CFO Sheri Savage. Keogh co-founded BuildQM in March and has been serving as an advisor to Frontera Holding. Prior to that, he served as CFO of the Ford Model e Segment and Ford Integrated Services at Ford Motor, bringing extensive large-enterprise financial management experience to the role.

This appointment follows the naming of Robert Wunar as COO earlier this year, who previously served as COO at Applied Materials. The consecutive management changes signal an ongoing corporate restructuring effort. Additionally, the semiconductor equipment sector showed broad strength during the regular session, with Applied Materials, Lam Research, KLA, and Teradyne all posting gains, providing further tailwinds for the stock.

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