Form4insider filings, from the source

Insider · CIK 0001775007

Mark McKechnie

Files at: ACMR. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $4.3M · 1net −$4.3M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesAug 19Aug 19Aug 19Aug 20Aug 20Aug 20Aug 21

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 20, 2026 SForm 4 →Aug 21, 9:30 pm EDTACM Research, Inc.ACMR55,199$77.27$4,264,971900−98.4%10b5-1
Aug 20, 2026 MForm 4 →Aug 21, 9:30 pm EDTACM Research, Inc.ACMR55,199$16.95$935,82956,099—10b5-1

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 20, 2026 MForm 4 →Aug 21, 9:30 pm EDTACM Research, Inc.ACMR55,199——215,000—10b5-1