Amtech SystemsASYS
13F holders, Q1 2025 (March 31)At the end of Q1 2025, 37 institutions reported holding Amtech Systems Inc. (ASYS) in their 13F filings, up 2 from Q4 2024. 6 opened new positions and 4 sold out. The largest holders were Dimensional Fund Advisors LP ($4.5M), First Eagle Investment Management, LLC ($4.1M) and Vanguard Group Inc. ($3.2M). 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 Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $422K |
| Exits | 4 | $487K |
All 13F filers, Q4 2024 → Q1 2025: 277,624 shares bought and 1,026,863 shares sold, net −749,239 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 37 holders
| Dimensional Fund Advisors LP | 0.00% | Reduce -0.4% | 927,626 | $4.5M |
| First Eagle Investment Management, LLC | 0.01% | Add +0.8% | 841,922 | $4.1M |
| Vanguard Group Inc. | 0.00% | No change | 670,784 | $3.2M |
| Pacific Ridge Capital Partners, LLC | 0.79% | Reduce -4.8% | 621,035 | $3.0M |
| Royce & Associates LP | 0.03% | Reduce -60.3% | 587,986 | $2.8M |
| Geode Capital Management, LLC | 0.00% | Add +2.8% | 136,510 | $660K |
| BlackRock, Inc. | 0.00% | Reduce -0.5% | 119,971 | $579K |
| Ancora Advisors LLC | 0.01% | Add +0.4% | 111,022 | $536K |
| AMH Equity Ltd | 0.73% | Add +137.0% | 97,583 | $471K |
| Kovack Advisors, Inc. | 0.04% | Add +15.1% | 75,400 | $364K |
| Bridgeway Capital Management, LLC | 0.01% | Add +82.0% | 64,800 | $313K |
| State Street Corp. | 0.00% | No change | 54,790 | $265K |
| Northern Trust Corp. | 0.00% | Add +4.3% | 46,767 | $226K |
| Citadel Advisors | 0.00% | Add +10.3% | 44,406 | $214K |
| WealthTrust Axiom LLC | 0.06% | No change | 43,624 | $211K |
| Acadian Asset Management LLC | 0.00% | Add +90.8% | 42,584 | $204K |
| Commonwealth Equity Services, LLC | 0.00% | Add +4.0% | 38,500 | $186K |
| Royal Bank of Canada | 0.00% | Add +20631.7% | 34,000 | $164K |
| Sowell Financial Services LLC | 0.01% | New | 32,883 | $159K |
| Goldman Sachs Group Inc. | 0.00% | Add +135.5% | 30,066 | $145K |
| Hillsdale Investment Management Inc. | 0.01% | Reduce -24.2% | 28,200 | $136K |
| Janney Montgomery Scott LLC | 0.00% | No change | 26,700 | $129K |
| Ironwood Investment Management LLC | 0.07% | Reduce -6.1% | 26,291 | $127K |
| Villere St Denis J & Co. LLC | 0.01% | No change | 20,000 | $97K |
| Susquehanna International Group, LLP | 0.00% | New | 16,260 | $79K |
| Williams & Novak, LLC | 0.07% | New | 14,735 | $71K |
| Renaissance Technologies | 0.00% | Add +8.6% | 12,700 | $61K |
| Gsa Capital Partners LLP | 0.01% | New | 12,116 | $59K |
| Wolverine Trading, LLC | 0.00% | New | 10,984 | $55K |
| Simplex Trading, LLC | 0.00% | Add +511.6% | 3,468 | $16K |
| Osaic Holdings, Inc. | 0.00% | Add +21.4% | 1,700 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +78.4% | 1,525 | $7K |
| UBS Group AG | 0.00% | No change | 1,223 | $6K |
| SBI Securities Co., Ltd. | 0.00% | Add +10.0% | 231 | $1K |
| Principal Securities, Inc. | 0.00% | No change | 200 | $1K |
| Bank of America Corp. | 0.00% | Add +5.2% | 102 | $493 |
| Morgan Stanley | 0.00% | New | 82 | $396 |
"% of holder's portfolio" is ASYS's weight in each manager's 13F, not the share of Amtech Systems Inc. the manager owns.