Haiping Dun, Director at ACM Research, Inc. (ACMR), sold 37,500 shares at $12.06 ($452K) on 2023-03-16, disclosed to the SEC on 2023-03-20.
Open-market sale of $452k 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.
| Filing → |
| ACMR | SELL | 2026-03-11 | $217K | — | Filing → |
| ACMR | SELL | 2025-03-18 | $552K | — | Filing → |
| ACMR | SELL | 2025-03-12 | $796K | — | Filing → |