Haiping Dun, Director at ACM Research, Inc. (ACMR), sold 5,000 shares at $63.84 ($331K) on 2026-05-19, disclosed to the SEC on 2026-05-21.
Scheduled sale ($331k) by Director under a pre-arranged 10b5-1 plan. Pre-set trade — not a discretionary signal on the stock.
Negative factors outweigh the positive ones.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $63.84 | 1,333 | $85K | 25.7% |
| 2 | $65.09 | 500 | $33K | 9.8% |
| 3 | $67.21 | 1,309 | $88K | 26.6% |
| 4 | $67.54 | 1,858 | $125K | 37.9% |
| Total | $66.22 avg | 5,000 | $331K | 100% |
| Filing → |
| ACMR | SELL | 2025-03-18 | $552K | — | Filing → |
| ACMR | SELL | 2025-03-12 | $796K | — | Filing → |
| ACMR | SELL | 2024-12-03 | $664K | — | Filing → |