The Vanguard Group 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 |
| 2024-02-13 4:55 pm Purchase |
2023-12-29 | 13G | ACM Research, Inc. ACMR |
The Vanguard Group | 4,057,397 7.300% |
1,157,977 (+39.94%) |
Filing |
| 2023-02-09 10:54 am Purchase |
2022-12-30 | 13G | ACM Research, Inc. ACMR |
The Vanguard Group | 2,899,420 5.330% |
2,899,420 (New Position) |
Filing |