Amtech SystemsASYS
13F holders, Q1 2026 (March 31)79holders +14
20new positions
7sold out
4famous investors
$11.69avg. 13F price*
At the end of Q1 2026, 79 institutions reported holding Amtech Systems Inc. (ASYS) in their 13F filings, up 14 from Q4 2025. 20 opened new positions and 7 sold out. The largest holders were First Eagle Investment Management, LLC ($9.7M), Vanguard Capital Management LLC ($6.6M) and Dimensional Fund Advisors LP ($6.2M). 4 famous investors held it, including Israel Englander (0.0% of Millennium Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Amtech Systems Inc.
- CUSIP
- 032332504
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $5.1M |
| Exits | 7 | $1.1M |
All 13F filers, Q4 2025 → Q1 2026: 2,049,742 shares bought and 656,426 shares sold, net +1,393,316 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 79 holders
| First Eagle Investment Management, LLC | 0.02% | Add +13.4% | 832,453 | $9.7M |
| Vanguard Capital Management LLC | 0.00% | — | 564,327 | $6.6M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -21.2% | 529,351 | $6.2M |
| Acadian Asset Management LLC | 0.01% | Add +97.8% | 466,837 | $5.4M |
| Millennium Management | 0.00% | Add +1894.0% | 453,597 | $5.3M |
| Marshall Wace, LLP | 0.01% | Add +18.3% | 417,076 | $4.9M |
| Pacific Ridge Capital Partners, LLC | 1.03% | Reduce -35.4% | 405,371 | $4.7M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +5.3% | 365,387 | $4.3M |
| Jane Street Group, LLC | 0.00% | Add +4.6% | 340,879 | $4.0M |
| Two Sigma Investments, LP | 0.00% | Add +139.5% | 266,856 | $3.1M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | Add +160.4% | 174,159 | $2.0M |
| Trexquant Investment LP | 0.01% | Add +94.6% | 173,889 | $2.0M |
| BlackRock, Inc. | 0.00% | Add +8.2% | 145,446 | $1.7M |
| Susquehanna International Group, LLP | 0.00% | Add +66.1% | 133,938 | $1.6M |
| Geode Capital Management, LLC | 0.00% | Reduce -0.6% | 132,149 | $1.5M |
| Bridgeway Capital Management, LLC | 0.03% | Add +13.3% | 109,118 | $1.3M |
| Renaissance Technologies | 0.00% | Reduce -26.3% | 108,096 | $1.3M |
| Citadel Advisors | 0.00% | Reduce -14.4% | 106,914 | $1.2M |
| Palisades Investment Partners, LLC | 0.46% | New | 100,656 | $1.2M |
| Sei Investments Co. | 0.00% | Add +104.5% | 92,515 | $1.1M |
| Qube Research & Technologies Ltd | 0.00% | Add +110.9% | 88,517 | $1.0M |
| XTX Topco Ltd | 0.02% | Add +7.5% | 74,606 | $871K |
| Informed Momentum Co LLC | 0.10% | No change | 74,305 | $868K |
| UBS Group AG | 0.00% | Add +638.8% | 72,474 | $846K |
| BNP Paribas Financial Markets | 0.00% | Add +139.2% | 63,541 | $742K |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 63,296 | $739K |
| Morgan Stanley | 0.00% | Add +347.3% | 59,092 | $690K |
| State Street Corp. | 0.00% | Reduce -8.7% | 57,340 | $670K |
| O'shaughnessy Asset Management, LLC | 0.00% | Reduce -16.8% | 50,727 | $592K |
| New York State Common Retirement Fund | 0.00% | New | 41,509 | $485K |
| Ritholtz Wealth Management | 0.01% | Add +1.4% | 40,121 | $469K |
| Northern Trust Corp. | 0.00% | Reduce -0.4% | 39,004 | $456K |
| Squarepoint Ops LLC | 0.00% | Add +132.0% | 38,690 | $452K |
| Essex Investment Management Co. LLC | 0.07% | No change | 37,816 | $442K |
| Engineers Gate Manager LP | 0.01% | New | 37,580 | $439K |
| Merit Financial Group, LLC | 0.00% | No change | 37,000 | $432K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -53.5% | 36,575 | $427K |
| Empowered Funds, LLC | 0.00% | New | 32,318 | $377K |
| Man Group plc | 0.00% | New | 31,671 | $370K |
| Janney Montgomery Scott LLC | 0.00% | No change | 30,760 | $359K |
| Point72 Asset Management | 0.00% | Reduce -56.3% | 29,758 | $348K |
| Occudo Quantitative Strategies LP | 0.02% | Reduce -6.9% | 19,830 | $345K |
| Dynamic Technology Lab Private Ltd | 0.05% | New | 28,141 | $329K |
| Ironwood Investment Management LLC | 0.13% | Reduce -1.2% | 27,198 | $318K |
| NewEdge Advisors, LLC | 0.00% | Add +84.2% | 26,891 | $314K |
| American Century Companies Inc. | 0.00% | Add +29.4% | 26,736 | $312K |
| Gsa Capital Partners LLP | 0.02% | Reduce -16.6% | 25,630 | $299K |
| Hillsdale Investment Management Inc. | 0.01% | New | 25,300 | $296K |
| Hudson Bay Capital Management LP | 0.00% | Add +11.7% | 24,083 | $281K |
| Brevan Howard Capital Management LP | 0.00% | New | 23,714 | $277K |
| State of Wyoming | 0.03% | New | 23,688 | $277K |
| Bank of America Corp. | 0.00% | Add +28941.0% | 22,652 | $265K |
| Virtu Financial LLC | 0.01% | New | 21,210 | $248K |
| Sowell Financial Services LLC | 0.01% | Add +25.1% | 20,206 | $236K |
| HRT Financial LP | 0.00% | New | 20,181 | $235K |
| Villere St Denis J & Co. LLC | 0.03% | No change | 20,000 | $234K |
| LPL Financial LLC | 0.00% | Add +58.5% | 19,013 | $222K |
| Schonfeld Strategic Advisors LLC | 0.00% | New | 18,804 | $220K |
| WealthTrust Axiom LLC | 0.05% | Add +44.3% | 16,300 | $190K |
| James Investment Research, Inc. | 0.02% | No change | 14,600 | $171K |
| Jump Financial, LLC | 0.00% | Reduce -56.2% | 13,280 | $155K |
| Kovack Advisors, Inc. | 0.01% | Reduce -45.0% | 12,100 | $145K |
| Walleye Capital LLC | 0.00% | New | 12,197 | $142K |
| Barclays PLC | 0.00% | Reduce -10.8% | 11,324 | $132K |
| Virtus Advisers, LLC | 0.06% | New | 11,200 | $131K |
| OMERS ADMINISTRATION Corp | 0.00% | Reduce -37.4% | 10,400 | $121K |
| Truvestments Capital LLC | 0.02% | New | 8,990 | $105K |
| Vanguard Global Advisers, LLC | 0.00% | — | 4,282 | $50K |
| Group One Trading LLC | 0.00% | Reduce -56.1% | 3,311 | $39K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 1,941 | $23K |
| IFP Advisors, Inc | 0.00% | New | 1,019 | $12K |
| Strengthening Families & Communities, LLC | 0.00% | No change | 490 | $6K |
| Osaic Holdings, Inc. | 0.00% | Reduce -47.6% | 338 | $4K |
| Cwm, LLC | 0.00% | New | 301 | $4K |
| JPMorgan Chase & Co. | 0.00% | New | 258 | $3K |
| FMR LLC | 0.00% | Reduce -43.5% | 242 | $3K |
| Russell Investments Group, Ltd. | 0.00% | New | 240 | $3K |
| Royal Bank of Canada | 0.00% | Add +315.2% | 191 | $2K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -76.9% | 30 | $350 |
"% of holder's portfolio" is ASYS's weight in each manager's 13F, not the share of Amtech Systems Inc. the manager owns.