Amtech Systems shares owned by Tower Research Capital
Quarter-by-quarter ownership of Amtech Systems (ASYS) shares owned by Tower Research Capital
from 13F filings
Historical chart of Tower Research Capital investment in Amtech Systems
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Quarterly reported holdings in Amtech Systems by Tower Research Capital
| Quarter filed | Position value | Share count | Share price at filing |
|---|---|---|---|
| 2026-03-31 | $23k | 1.9k | 11.68 |
| 2025-06-30 | $3.9k | 884 | 4.44 |
| 2025-03-31 | $7.4k | 1.5k | 4.83 |
| 2024-12-31 | $4.7k | 855 | 5.45 |
| 2024-09-30 | $3.8k | 656 | 5.80 |
| 2024-06-30 | $15k | 2.6k | 5.86 |
| 2024-03-31 | $11k | 2.0k | 5.41 |
| 2023-09-30 | $28k | 3.7k | 7.62 |
| 2023-06-30 | $5.1k | 538 | 9.56 |
| 2023-03-31 | $49k | 4.9k | 9.99 |
| 2022-12-31 | $6.0k | 836 | 7.18 |
| 2022-09-30 | $17k | 1.6k | 10.31 |
| 2022-06-30 | $18k | 2.4k | 7.49 |
| 2021-12-31 | $5.0k | 531 | 9.42 |
| 2021-06-30 | $15k | 1.7k | 8.70 |
| 2021-03-31 | $0 | 987 | 0.00 |
| 2020-12-31 | $7.4k | 1.1k | 6.52 |
| 2020-03-31 | $2.5k | 529 | 4.69 |
| 2019-12-31 | $999 | 98 | 10.20 |
| 2019-09-30 | $30k | 5.8k | 5.23 |
| 2019-06-30 | $0 | 75 | 0.00 |
| 2019-03-31 | $46k | 8.7k | 5.33 |
| 2018-12-31 | $12k | 2.4k | 5.22 |
| 2018-03-31 | $8.0k | 1.2k | 6.91 |
| 2017-12-31 | $2.0k | 245 | 8.16 |
| 2017-09-30 | $18k | 1.5k | 11.68 |
| 2017-06-30 | $39k | 4.6k | 8.50 |
| 2017-03-31 | $0 | 10 | 0.00 |
| 2016-12-31 | $9.0k | 2.0k | 4.48 |
| 2016-09-30 | $5.0k | 1.5k | 3.33 |
| 2016-06-30 | $45k | 6.3k | 7.16 |
| 2016-03-31 | $12k | 1.8k | 6.74 |
| 2015-09-30 | $3.0k | 787 | 3.81 |
| 2015-06-30 | $8.0k | 807 | 9.91 |
| 2015-03-31 | $17k | 1.6k | 10.89 |
| 2014-12-31 | $8.6k | 994 | 8.70 |
| 2014-06-30 | $45k | 3.7k | 12.19 |
| 2014-03-31 | $9.4k | 596 | 15.75 |
| 2013-12-31 | $2.7k | 467 | 5.68 |
| 2013-09-30 | $1.0k | 200 | 5.00 |