Insider · CIK 0001721279
Sotheara Cheav
Files at: ACMR. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 4, 2026 SForm 4 → | Jun 5, 9:00 pm EDT | ACM Research, Inc.ACMR | 18,750 | $84.58 | $1,585,923 | 100,002 | −15.8% | 10b5-1 |
| Jun 4, 2026 MForm 4 → | Jun 5, 9:00 pm EDT | ACM Research, Inc.ACMR | 18,750 | $13.89 | $260,438 | 105,401 | — | 10b5-1 |
| Jun 4, 2018 CForm 4 → | Jul 31, 4:35 pm EDT | ACM Research, Inc.ACMR | 25,667 | — | — | 33,334 | — | plan? late |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Jun 4, 2026 MForm 4 → | Jun 5, 9:00 pm EDT | ACM Research, Inc.ACMR | 18,750 | — | — | 37,500 | — | 10b5-1 |
| Aug 1, 2018 AForm 4 → | Oct 23, 4:35 pm EDT | ACM Research, Inc.ACMR | 40,000 | — | — | 40,000 | — | late |
| Jun 4, 2018 CForm 4 → | Jul 31, 4:35 pm EDT | ACM Research, Inc.ACMR | 25,667 | — | — | 0 | — | late |