List of insiders holdings for ACM Research Inc.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | Wang David H See Remarks 10% Owner | 2025-05-23 16:35:16 | 2,472,712 945,840 | 3,418,552 | Form 4 |
| 2 | Shanghai Science & Technology Venture Capital (Group) Co. Ltd. Shanghai Pudong Science & Technology Investment Group Co. Ltd. Possible member of 10% group 10% Owner | 2024-10-29 21:30:06 | 3,358,728 0 | 3,358,728 | Form 13D |
| 3 | Xing Xiao Director | 2024-10-08 21:30:56 | 0 2,338,510 | 2,338,510 | Form 4 |
| 4 | Xiang Yinan Director | 2021-08-24 21:00:40 | 0 1,146,170 | 1,146,170 | Form 4 |
| 5 | Dun Haiping Director | 2025-03-18 21:30:20 | 755,090 100,000 | 855,090 | Form 4 |
| 6 | Yang Zhengfan Director | 2018-01-26 10:35:16 | 0 833,334 | 833,334 | Form 3 |
| 7 | Wang Jian See remarks | 2024-06-12 16:30:42 | 283,158 0 | 283,158 | Form 4 |
| 8 | Cheav Sotheara See remarks | 2025-02-10 16:32:17 | 267,404 0 | 267,404 | Form 4 |
| 9 | Chen Fufa See Remarks | 2018-05-17 16:36:24 | 140,002 0 | 140,002 | Form 4 |
| 10 | Hu Chenming Director | 2025-03-19 21:30:25 | 100,002 0 | 100,002 | Form 4 |
| 11 | Xu Min See Remarks | 2017-11-02 17:55:53 | 100,000 0 | 100,000 | Form 3 |
| 12 | Feng Lisa See remarks | 2025-07-09 16:30:11 | 80,001 0 | 80,001 | Form 4 |
| 13 | Chen Fuping See remarks | 2024-09-24 16:30:25 | 30,000 0 | 30,000 | Form 4 |
| 14 | Liu Tracy Director | 2024-08-20 21:00:12 | 20,000 0 | 20,000 | Form 4 |
| 15 | Pappis Charles C Director | 2025-05-21 21:32:49 | 10,000 0 | 10,000 | Form 4 |
| 16 | McKechnie Mark See Remarks | 2025-05-16 16:30:27 | 900 0 | 900 | Form 4 |