4
Changes in Ownership
ACM Research, Inc. Filed Acc 0001140361-26-033892
Director sold 5,000 shares at an average $81.13 ($405,670)
- Director acquired 5,000 shares (option exercise)
- Traded under a Rule 10b5-1 plan
From the SEC's structured data for this filing
Trades in this filing
| Insider | Date | Transaction | Shares | Price | Value | Owned after | D/I |
|---|---|---|---|---|---|---|---|
| Dun Haiping Director | 2026-08-18 | Option exercise 10b5-1 | +5,000 | $5.60 | $28,000 | 5,000 | D |
| Dun Haiping Director | 2026-08-18 | Sale 10b5-1 | −1,200 | $80.29 | $96,348 | 3,800 | D |
| Dun Haiping Director | 2026-08-18 | Sale 10b5-1 | −3,400 | $81.31 | $276,454 | 400 | D |
| Dun Haiping Director | 2026-08-18 | Sale 10b5-1 | −400 | $82.17 | $32,868 | 0 | D |
| Derivatives | |||||||
| Dun Haiping Director | 2026-08-18 | Option exercise · Stock Option 10b5-1 | −5,000 | 45,000 | D | ||
| Open-market sales · 5,000 sh · avg $81.13 · $405,670 | |||||||
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