Amtech SystemsASYS
13F holders, Q4 2025 (December 31)65holders +11
23new positions
11sold out
4famous investors
$12.55avg. 13F price*
At the end of Q4 2025, 65 institutions reported holding Amtech Systems Inc. (ASYS) in their 13F filings, up 11 from Q3 2025. 23 opened new positions and 11 sold out. The largest holders were First Eagle Investment Management, LLC ($9.2M), Dimensional Fund Advisors LP ($8.4M) and Vanguard Group Inc. ($7.9M). 4 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Steve Cohen (0.0% of Point72 Asset Management'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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 23 | $11.6M |
| Exits | 11 | $1.3M |
All 13F filers, Q3 2025 → Q4 2025: 2,085,368 shares bought and 457,124 shares sold, net +1,628,244 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 65 holders
| First Eagle Investment Management, LLC | 0.02% | Reduce -2.4% | 734,346 | $9.2M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -20.9% | 672,107 | $8.4M |
| Vanguard Group Inc. | 0.00% | Reduce -6.5% | 631,905 | $7.9M |
| Pacific Ridge Capital Partners, LLC | 1.73% | Reduce -2.9% | 627,811 | $7.9M |
| Marshall Wace, LLP | 0.00% | Add +235.0% | 352,624 | $4.4M |
| Arrowstreet Capital, Limited Partnership | 0.00% | Add +90.2% | 347,033 | $4.4M |
| Jane Street Group, LLC | 0.00% | Add +85.7% | 325,754 | $4.1M |
| Acadian Asset Management LLC | 0.00% | Add +182.5% | 236,008 | $3.0M |
| Renaissance Technologies | 0.00% | Add +622.1% | 146,596 | $1.8M |
| BlackRock, Inc. | 0.00% | Add +1.2% | 134,477 | $1.7M |
| Geode Capital Management, LLC | 0.00% | Add +1.3% | 133,001 | $1.7M |
| Citadel Advisors | 0.00% | Add +59.1% | 124,843 | $1.6M |
| Two Sigma Investments, LP | 0.00% | New | 111,437 | $1.4M |
| Bridgeway Capital Management, LLC | 0.03% | Add +48.6% | 96,318 | $1.2M |
| Trexquant Investment LP | 0.01% | New | 89,365 | $1.1M |
| Susquehanna International Group, LLP | 0.00% | Add +304.4% | 80,630 | $1.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +151.8% | 78,693 | $988K |
| Informed Momentum Co LLC | 0.10% | New | 74,305 | $933K |
| Two Sigma Advisers, LP | 0.00% | New | 69,997 | $878K |
| XTX Topco Ltd | 0.02% | Add +568.1% | 69,381 | $871K |
| Point72 Asset Management | 0.00% | New | 68,154 | $855K |
| Connor, Clark & Lunn Investment Management Ltd. | 0.00% | New | 66,877 | $839K |
| State Street Corp. | 0.00% | Add +14.6% | 62,790 | $788K |
| O'shaughnessy Asset Management, LLC | 0.00% | New | 60,963 | $765K |
| Sei Investments Co. | 0.00% | New | 45,233 | $568K |
| Qube Research & Technologies Ltd | 0.00% | New | 41,978 | $527K |
| Ritholtz Wealth Management | 0.01% | New | 39,572 | $497K |
| Northern Trust Corp. | 0.00% | Add +6.7% | 39,177 | $492K |
| Essex Investment Management Co. LLC | 0.07% | No change | 37,816 | $475K |
| Merit Financial Group, LLC | 0.00% | New | 37,000 | $464K |
| Gsa Capital Partners LLP | 0.03% | Reduce -9.1% | 30,748 | $386K |
| Janney Montgomery Scott LLC | 0.00% | Add +15.2% | 30,760 | $386K |
| Quadrature Capital Ltd | 0.00% | New | 30,542 | $383K |
| Jump Financial, LLC | 0.01% | New | 30,300 | $380K |
| Ironwood Investment Management LLC | 0.15% | Reduce -0.2% | 27,537 | $346K |
| BNP Paribas Financial Markets | 0.00% | New | 26,568 | $333K |
| Millennium Management | 0.00% | Add +90.4% | 22,748 | $285K |
| Kovack Advisors, Inc. | 0.01% | Reduce -31.6% | 22,000 | $276K |
| Centiva Capital, LP | 0.02% | New | 21,815 | $274K |
| Hudson Bay Capital Management LP | 0.00% | New | 21,553 | $270K |
| Occudo Quantitative Strategies LP | 0.02% | New | 21,293 | $267K |
| American Century Companies Inc. | 0.00% | Add +94.5% | 20,666 | $259K |
| Villere St Denis J & Co. LLC | 0.03% | No change | 20,000 | $251K |
| Squarepoint Ops LLC | 0.00% | New | 16,677 | $209K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 16,600 | $208K |
| Ancora Advisors LLC | 0.00% | Reduce -53.9% | 16,247 | $204K |
| Sowell Financial Services LLC | 0.01% | New | 16,156 | $203K |
| James Investment Research, Inc. | 0.02% | No change | 14,600 | $183K |
| NewEdge Advisors, LLC | 0.00% | No change | 14,600 | $183K |
| Morgan Stanley | 0.00% | Add +70.7% | 13,211 | $166K |
| Barclays PLC | 0.00% | Add +42226.7% | 12,698 | $159K |
| Graham Capital Management, L.P. | 0.01% | New | 12,608 | $158K |
| LPL Financial LLC | 0.00% | Reduce -6.4% | 11,993 | $151K |
| WealthTrust Axiom LLC | 0.04% | Reduce -68.4% | 11,300 | $142K |
| UBS Group AG | 0.00% | Add +383.3% | 9,810 | $123K |
| Group One Trading LLC | 0.00% | Add +273.0% | 7,549 | $95K |
| Kestra Advisory Services, LLC | 0.00% | New | 7,050 | $88K |
| Citigroup Inc. | 0.00% | Add +238700.0% | 2,388 | $30K |
| Simplex Trading, LLC | 0.00% | New | 681 | $9K |
| Osaic Holdings, Inc. | 0.00% | Reduce -17.3% | 645 | $8K |
| Strengthening Families & Communities, LLC | 0.00% | No change | 490 | $6K |
| FMR LLC | 0.00% | Reduce -35.6% | 428 | $5K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -13.9% | 130 | $2K |
| Royal Bank of Canada | 0.00% | Add +27.8% | 46 | $1K |
| Bank of America Corp. | 0.00% | Reduce -95.4% | 78 | $979 |
"% of holder's portfolio" is ASYS's weight in each manager's 13F, not the share of Amtech Systems Inc. the manager owns.