DIMENSIONAL FUND ADVISORS INC 13D and 13G filings for Amtech Systems, 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 |
| 2024-10-31 11:55 am Sale |
2024-10-31 | 13G | Amtech Systems, Inc. ASYS |
DIMENSIONAL FUND ADVISORS INC | 924,130 6.500% |
-198,546 (-17.69%) |
Filing |
| 2024-02-09 09:59 am Sale |
2024-02-14 | 13G | Amtech Systems, Inc. ASYS |
DIMENSIONAL FUND ADVISORS INC | 1,122,676 7.900% |
-25,438 (-2.22%) |
Filing |
| 2023-02-10 2:42 pm Purchase |
2023-02-14 | 13G | Amtech Systems, Inc. ASYS |
DIMENSIONAL FUND ADVISORS INC | 1,148,114 8.200% |
47,919 (+4.36%) |
Filing |
| 2022-02-08 3:52 pm Sale |
2022-02-14 | 13G | Amtech Systems, Inc. ASYS |
DIMENSIONAL FUND ADVISORS INC | 1,100,195 7.700% |
-1,017 (-0.09%) |
Filing |
| 2021-02-12 3:55 pm Sale |
2021-02-16 | 13G | Amtech Systems, Inc. ASYS |
DIMENSIONAL FUND ADVISORS INC | 1,101,212 7.800% |
-77,850 (-6.60%) |
Filing |