Yiheng Capital Management L.P. 13D and 13G filings for ACM Research, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime |
Transaction Date |
Type | Company Symbol |
Filed By Symbol |
Shares Owned % Owned |
Shares Vs. Prev Report | View |
| 2024-11-13 12:15 pm Sale |
2024-09-30 | 13G | ACM Research, Inc. ACMR |
Yiheng Capital Management L.P. | 666,304 1.200% |
-4,696,825 (-87.58%) |
Filing |
| 2024-02-14 4:06 pm Purchase |
2023-12-31 | 13G | ACM Research, Inc. ACMR |
Yiheng Capital Management L.P. | 5,363,129 9.650% |
96,329 (+1.83%) |
Filing |
| 2023-02-14 4:05 pm Purchase |
2022-12-31 | 13G | ACM Research, Inc. ACMR |
Yiheng Capital Management L.P. | 5,266,800 9.690% |
1,021,500 (+24.06%) |
Filing |
| 2022-02-14 4:26 pm Purchase |
2021-12-31 | 13G | ACM Research, Inc. ACMR |
Yiheng Capital Management L.P. | 4,245,300 8.200% |
4,245,300 (New Position) |
Filing |