Amtech SystemsASYS
13F holders, Q2 2025 (June 30)At the end of Q2 2025, 36 institutions reported holding Amtech Systems Inc. (ASYS) in their 13F filings, down 1 from Q1 2025. 4 opened new positions and 5 sold out. The largest holders were Dimensional Fund Advisors LP ($4.0M), First Eagle Investment Management, LLC ($3.6M) and Pacific Ridge Capital Partners, LLC ($2.9M). 2 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).
- Company
- Amtech Systems Inc.
- CUSIP
- 032332504
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $134K |
| Exits | 5 | $3.6M |
All 13F filers, Q1 2025 → Q2 2025: 131,219 shares bought and 834,476 shares sold, net −703,257 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 36 holders
| Dimensional Fund Advisors LP | 0.00% | Reduce -1.9% | 909,566 | $4.0M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -4.9% | 800,382 | $3.6M |
| Pacific Ridge Capital Partners, LLC | 0.70% | Add +6.5% | 661,367 | $2.9M |
| Vanguard Group Inc. | 0.00% | Reduce -1.8% | 658,907 | $2.9M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.1% | 136,374 | $606K |
| BlackRock, Inc. | 0.00% | Add +3.9% | 124,598 | $553K |
| Ancora Advisors LLC | 0.01% | No change | 111,022 | $493K |
| Kovack Advisors, Inc. | 0.03% | Reduce -3.2% | 73,000 | $324K |
| Bridgeway Capital Management, LLC | 0.01% | No change | 64,800 | $288K |
| State Street Corp. | 0.00% | No change | 54,790 | $243K |
| Northern Trust Corp. | 0.00% | No change | 46,767 | $208K |
| Gsa Capital Partners LLP | 0.01% | Add +266.6% | 44,419 | $197K |
| Acadian Asset Management LLC | 0.00% | Add +0.9% | 42,968 | $190K |
| WealthTrust Axiom LLC | 0.06% | Reduce -3.4% | 42,124 | $187K |
| Commonwealth Equity Services, LLC | 0.00% | No change | 38,500 | $171K |
| Citadel Advisors | 0.00% | Reduce -14.7% | 37,894 | $168K |
| Royal Bank of Canada | 0.00% | Add +4.4% | 35,500 | $158K |
| Sowell Financial Services LLC | 0.01% | Add +2.0% | 33,549 | $149K |
| Ironwood Investment Management LLC | 0.06% | Add +5.7% | 27,798 | $123K |
| Janney Montgomery Scott LLC | 0.00% | No change | 26,700 | $119K |
| XTX Topco Ltd | 0.00% | New | 23,606 | $105K |
| Villere St Denis J & Co. LLC | 0.01% | No change | 20,000 | $89K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -33.6% | 19,954 | $89K |
| Williams & Novak, LLC | 0.07% | Add +24.8% | 18,385 | $82K |
| Renaissance Technologies | 0.00% | Add +14.2% | 14,500 | $64K |
| UBS Group AG | 0.00% | Add +949.0% | 12,829 | $57K |
| FMR LLC | 0.00% | New | 5,892 | $26K |
| Simplex Trading, LLC | 0.00% | Reduce -18.2% | 2,838 | $12K |
| Morgan Stanley | 0.00% | Add +3084.2% | 2,611 | $12K |
| Osaic Holdings, Inc. | 0.00% | Reduce -3.2% | 1,645 | $7K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -42.0% | 884 | $4K |
| Raymond James Financial Inc. | 0.00% | New | 700 | $3K |
| SBI Securities Co., Ltd. | 0.00% | Add +4.3% | 241 | $1K |
| Principal Securities, Inc. | 0.00% | No change | 200 | $888 |
| Bank of America Corp. | 0.00% | Add +95.1% | 199 | $884 |
| Jones Financial Companies LLLP | 0.00% | New | 10 | $46 |
"% of holder's portfolio" is ASYS's weight in each manager's 13F, not the share of Amtech Systems Inc. the manager owns.