Form4insider filings, from the source

Company · CIK 0001275014 · SIC 3674 — Semiconductors & Related Devices · Nasdaq

Ultra Clean Holdings, Inc. · UCTT

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $494k · 1net −$494k
$10k$10k$100k$100k$1M$1MbuyssalesJun 27Jul 12Jul 27Aug 12Aug 27Sep 11Sep 27

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 31, 2026 AForm 4 →Sep 4, 6:23 pm EDTMichael Dennis KeoghChief Financial Officer20,917——20,917— late
Aug 31, 2026 FForm 4 →Sep 2, 8:36 pm EDTChristopher S CookPresident, Products Division12,497$67.83$847,67298,126—
Jul 2, 2026 SForm 4 →Jul 7, 7:06 pm EDTBrian E HardingChief Accounting Officer3,837$128.75$494,02033,581−10.3%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.