Haiping Dun, Director at ACM Research, Inc. (ACMR), sold 20,338 shares at $82.66 ($1.7M) on 2022-03-09, disclosed to the SEC on 2022-03-11.
Open-market sale of $1.7M ACMR by Director. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Nothing distinguishes this filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $80.48 | 1,200 | $97K | 5.8% |
| 2 | $82.11 | 8,069 | $663K | 39.7% |
| 3 | $82.11 | 8,069 | $663K | 39.7% |
| 4 | $82.66 | 3,000 | $248K | 14.9% |
| Total | $82.09 avg | 20,338 | $1.7M | 100% |
| Filing → |
| ACMR | SELL | 2026-03-11 | $217K | — | Filing → |
| ACMR | SELL | 2025-03-18 | $552K | — | Filing → |
| ACMR | SELL | 2025-03-12 | $796K | — | Filing → |