ACM Research, Inc. (ACMR) has 91 open-market insider trades by 29 insiders since 2006. The most active filer is John E. Parker, 10%.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Yinan Xiang | Dir | — | 5 | $43.4M | 2021-08-24 |
| David H. Wang | 10% Owner | — | 4 | $27.8M | 2026-09-09 |
| William Kaplan | Dir | — | 2 | $24.5M | 2006-11-21 |
| John E. Parker | 10% | — | 11 | $12.3M | 2006-08-10 |
| Mark McKechnie | — | — | 8 | $7.5M | 2026-08-20 |
| Sotheara Cheav | — | — | 7 | $6.7M | 2026-06-05 |
| Fuping Chen | — | — | 2 | $5.2M | 2025-12-03 |
| Chenming Hu | Dir | — | 4 | $4.2M | 2025-03-17 |
| Haiping Dun | Dir | — | 8 | $3.9M | 2026-08-18 |
| Glenn J. Krevlin | 10% | — | 2 | $3.5M | 2011-10-05 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| David H. Wang | 10% Owner | Sell | $10.6M | 2026-09-08 |
| Mark McKechnie | — | Sell | $4.3M | 2026-08-20 |
| Haiping Dun | Director | Sell | $406K | 2026-08-18 |
| Sotheara Cheav | — | Sell | $1.6M | 2026-06-04 |
| David H. Wang | 10% Owner | Sell | $8.8M | 2026-06-03 |
| Haiping Dun | Director | Sell | $331K | 2026-05-19 |
Companies that share insiders with ACMR, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Charles C. Pappis | Director | Sell | $260K | 2026-04-17 |
| Mark McKechnie | — | Sell | $4.5M | 2026-03-12 |
| David H. Wang | See Remarks & 10% | Sell | $5.2M | 2026-03-11 |
| Tracy Liu | Director | Sell | $2.9M | 2026-03-10 |
| Haiping Dun | Director | Sell | $217K | 2026-03-09 |
| Charles C. Pappis | Director | Sell | $250K | 2026-03-05 |
| Lisa Feng | — | Sell | $1.4M | 2026-03-05 |
| Mark McKechnie | — | Sell | $1.9M | 2025-12-04 |
| David H. Wang | — | Sell | $6.4M | 2025-12-03 |