Insider · CIK 0001721580
David H Wang
Files at: ACMR. On EDGAR ↗
Reported trades — common stock
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 8, 2026 SForm 4 → | Sep 10, 4:30 pm EDT | ACM Research, Inc.ACMR | 140,000 | $75.93 | $10,630,010 | 802,708 | −14.9% | 10b5-1 |
| Sep 8, 2026 MForm 4 → | Sep 10, 4:30 pm EDT | ACM Research, Inc.ACMR | 140,000 | $1.00 | $140,000 | 872,708 | — | 10b5-1 |
| Jun 3, 2026 SForm 4 → | Jun 5, 4:30 pm EDT | ACM Research, Inc.ACMR | 100,002 | $88.35 | $8,835,388 | 802,708 | −11.1% | 10b5-1 |
| Jun 3, 2026 MForm 4 → | Jun 5, 4:30 pm EDT | ACM Research, Inc.ACMR | 100,002 | $1.00 | $100,002 | 842,710 | — | 10b5-1 |
| Jun 29, 2018 MForm 4 → | Jul 3, 4:36 pm EDT | ACM Research, Inc.ACMR | 15,279 | $3.00 | $45,837 | 15,279 | — | plan? |
Reported trades — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Company | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 8, 2026 MForm 4 → | Sep 10, 4:30 pm EDT | ACM Research, Inc.ACMR | 140,000 | — | — | 130,000 | — | 10b5-1 |
| Jun 3, 2026 MForm 4 → | Jun 5, 4:30 pm EDT | ACM Research, Inc.ACMR | 100,002 | — | — | 270,000 | — | 10b5-1 |
| May 13, 2026 AForm 4 → | Jul 6, 9:00 pm EDT | ACM Research, Inc.ACMR | 6,208 | — | — | 6,208 | — | late |
| Jun 29, 2018 MForm 4 → | Jul 3, 4:36 pm EDT | ACM Research, Inc.ACMR | 15,279 | — | — | 0 | — |