Haiping Dun, Director at ACM Research, Inc. (ACMR), sold 5,000 shares at $43.37 ($217K) on 2026-03-09, disclosed to the SEC on 2026-03-11.
Seasonal sale ($217k) by Director — this insider has traded ACMR in March in at least three consecutive prior years. Pattern-driven, low signal.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $43.37 | 4,100 | $178K | 81.8% |
| 2 | $43.94 | 900 | $40K | 18.2% |
| Total | $43.47 avg | 5,000 | $217K | 100% |
| Filing → |
| ACMR | SELL | 2025-03-18 | $552K | — | Filing → |
| ACMR | SELL | 2025-03-12 | $796K | — | Filing → |
| ACMR | SELL | 2024-12-03 | $664K | — | Filing → |