Form4insider filings, from the source

Insider · CIK 0001721376

Fufa Chen

Files at: ACMR. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jan 31, 2018 MForm 4 →May 17, 4:36 pm EDTACM Research, Inc.ACMR56,249$1.06$59,373129,583— plan? late

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jan 31, 2018 MForm 4 →May 17, 4:36 pm EDTACM Research, Inc.ACMR56,249——10,419— late