Amtech Systems Inc
ASYS- Exchange
- Nasdaq
- Industry
- Special Industry Machinery, NEC
- SEC CIK
- 0000720500
In the last 90 days, Amtech Systems Inc insiders filed 2 open-market purchases and 0 sales; 112 institutions reported holding it in 13F filings for Q2 2026, worth $241.5M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Amtech Systems Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 65
- +12 vs. Q3 2025
- Shares held
- 6.15M
- +1.63M (+36.0%) vs. Q3 2025
- Total value
- $77.2M
- +$35.3M (+84.4%) vs. Q3 2025
- New holders
- 23
- 23 more added
- Sold out
- 11
- 14 more reduced
1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ASYS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 112 | $241.5M |
| Q1 2026 | 79 | $87.4M |
| Q4 2025 | 65 | $77.2M |
| Q3 2025 | 54 | $42.1M |
| Q2 2025 | 36 | $18.2M |
| Q1 2025 | 37 | $23.2M |
| Q4 2024 | 35 | $30.2M |
| Q3 2024 | 34 | $35.4M |
| Q2 2024 | 34 | $36.4M |
| Q1 2024 | 41 | $33.9M |
| Q4 2023 | 45 | $25.9M |
| Q3 2023 | 42 | $51.2M |
| Q2 2023 | 44 | $63.2M |
| Q1 2023 | 44 | $62.5M |
| Q4 2022 | 49 | $50.2M |
| Q3 2022 | 43 | $76.1M |
| Q2 2022 | 40 | $65.7M |
| Q1 2022 | 46 | $94.6M |
| Q4 2021 | 50 | $95.3M |
| Q3 2021 | 52 | $77.6M |
| Q2 2021 | 56 | $64.4M |
| Q1 2021 | 64 | $83.7M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Amtech Systems Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Bank of America Corp | 78 | $979 | 0.00% | −1,608−95.4% | Reduced |
| Royal Bank of Canada | 46 | $1.00K | 0.00% | +10+27.8% | Added |
| SBI Securities Co., Ltd. | 130 | $1.63K | 0.00% | −21−13.9% | Reduced |
| FMR LLC | 428 | $5.37K | 0.00% | −237−35.6% | Reduced |
| Strengthening Families & Communities, LLC | 490 | $6.15K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 645 | $8.09K | 0.00% | −135−17.3% | Reduced |
| Simplex Trading, LLC | 681 | $8.55K | 0.00% | +681 | New |
| Citigroup Inc | 2,388 | $30.0K | 0.00% | +2,387+238,700.0% | Added |
| Kestra Advisory Services, LLC | 7,050 | $88.5K | 0.00% | +7,050 | New |
| Group One Trading, L.P. | 7,549 | $94.7K | 0.00% | +5,525+273.0% | Added |
| UBS Group AG | 9,810 | $123.1K | 0.00% | +7,780+383.3% | Added |
| WealthTrust Axiom LLC | 11,300 | $141.8K | 0.04% | −24,500−68.4% | Reduced |
| LPL Financial LLC | 11,993 | $150.5K | 0.00% | −822−6.4% | Reduced |
| Graham Capital Management, L.P. | 12,608 | $158.2K | 0.01% | +12,608 | New |
| Barclays PLC | 12,698 | $159.4K | 0.00% | +12,668+42,226.7% | Added |
| Morgan Stanley | 13,211 | $165.8K | 0.00% | +5,473+70.7% | Added |
| James Investment Research Inc | 14,600 | $183.2K | 0.02% | 00.0% | Unchanged |
| GWM Advisors LLC | 14,600 | $183.2K | 0.00% | 00.0% | Unchanged |
| Sowell Financial Services LLC | 16,156 | $202.8K | 0.01% | +16,156 | New |
| Ancora Advisors, LLC | 16,247 | $203.9K | 0.00% | −19,000−53.9% | Reduced |
| Omers Administration Corp | 16,600 | $208.3K | 0.00% | +16,600 | New |
| Squarepoint Ops LLC | 16,677 | $209.3K | 0.00% | +16,677 | New |
| Villere St Denis J & Co LLC | 20,000 | $251.0K | 0.03% | 00.0% | Unchanged |
| American Century Companies Inc | 20,666 | $259.4K | 0.00% | +10,043+94.5% | Added |
| Occudo Quantitative Strategies LP | 21,293 | $267.2K | 0.02% | +21,293 | New |
| Hudson Bay Capital Management LP | 21,553 | $270.5K | 0.00% | +21,553 | New |
| Centiva Capital, LP | 21,815 | $273.8K | 0.02% | +21,815 | New |
| Kovack Advisors, Inc. | 22,000 | $276.1K | 0.01% | −10,150−31.6% | Reduced |
| Millennium Management LLC | 22,748 | $285.5K | 0.00% | +10,802+90.4% | Added |
| BNP Paribas Arbitrage, SA | 26,568 | $333.4K | 0.00% | +26,568 | New |
| Ironwood Investment Management LLC | 27,537 | $345.6K | 0.15% | −54−0.2% | Reduced |
| Jump Financial, LLC | 30,300 | $380.3K | 0.00% | +30,300 | New |
| Quadrature Capital Ltd | 30,542 | $383.3K | 0.00% | +30,542 | New |
| Gsa Capital Partners LLP | 30,748 | $386.0K | 0.03% | −3,069−9.1% | Reduced |
| Janney Montgomery Scott LLC | 30,760 | $386.0K | 0.00% | +4,060+15.2% | Added |
| Merit Financial Group, LLC | 37,000 | $464.4K | 0.00% | +37,000 | New |
| Essex Investment Management Co LLC | 37,816 | $474.6K | 0.07% | 00.0% | Unchanged |
| Northern Trust Corp | 39,177 | $491.7K | 0.00% | +2,474+6.7% | Added |
| Ritholtz Wealth Management | 39,572 | $496.6K | 0.01% | +39,572 | New |
| Qube Research & Technologies Ltd | 41,978 | $526.8K | 0.00% | +41,978 | New |
| SEI Investments Co | 45,233 | $567.7K | 0.00% | +45,233 | New |
| O'Shaughnessy Asset Management, LLC | 60,963 | $765.1K | 0.00% | +60,963 | New |
| State Street Corp | 62,790 | $788.0K | 0.00% | +8,000+14.6% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 66,877 | $839.3K | 0.00% | +66,877 | New |
| Point72 Asset Management, L.P. | 68,154 | $855.3K | 0.00% | +68,154 | New |
| XTX Topco Ltd | 69,381 | $870.7K | 0.02% | +58,996+568.1% | Added |
| Two Sigma Advisers, LP | 69,997 | $878.5K | 0.00% | +69,997 | New |
| EAM Investors, LLC | 74,305 | $932.5K | 0.10% | +74,305 | New |
| Goldman Sachs Group Inc | 78,693 | $987.6K | 0.00% | +47,442+151.8% | Added |
| Susquehanna International Group, LLP | 80,630 | $1.01M | 0.00% | +60,693+304.4% | Added |
| Trexquant Investment LP | 89,365 | $1.12M | 0.01% | +89,365 | New |
| Bridgeway Capital Management, LLC | 96,318 | $1.21M | 0.03% | +31,518+48.6% | Added |
| Two Sigma Investments, LP | 111,437 | $1.40M | 0.00% | +111,437 | New |
| Citadel Advisors LLC | 124,843 | $1.57M | 0.00% | +46,389+59.1% | Added |
| Geode Capital Management, LLC | 133,001 | $1.67M | 0.00% | +1,720+1.3% | Added |
| BlackRock, Inc. | 134,477 | $1.69M | 0.00% | +1,604+1.2% | Added |
| Renaissance Technologies LLC | 146,596 | $1.84M | 0.00% | +126,296+622.1% | Added |
| Acadian Asset Management LLC | 236,008 | $2.96M | 0.00% | +152,476+182.5% | Added |
| Jane Street Group, LLC | 325,754 | $4.09M | 0.00% | +150,332+85.7% | Added |
| Arrowstreet Capital, Limited Partnership | 347,033 | $4.36M | 0.00% | +164,604+90.2% | Added |
| Marshall Wace, LLP | 352,624 | $4.43M | 0.00% | +247,352+235.0% | Added |
| Pacific Ridge Capital Partners, LLC | 627,811 | $7.88M | 1.73% | −18,678−2.9% | Reduced |
| Vanguard Group Inc | 631,905 | $7.93M | 0.00% | −44,101−6.5% | Reduced |
| Dimensional Fund Advisors LP | 672,107 | $8.44M | 0.00% | −177,708−20.9% | Reduced |
| First Eagle Investment Management, LLC | 734,346 | $9.22M | 0.02% | −18,000−2.4% | Reduced |
| EHP Funds Inc. | 0 | $0 | 0.00% | −25,242−100.0% | Sold out |
| GWN Securities Inc. | 0 | $0 | 0.00% | −20,423−100.0% | Sold out |
| Wexford Capital LP | 0 | $0 | 0.00% | −18,808−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −18,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −16,463−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −13,442−100.0% | Sold out |
| Thompson Davis & Co., Inc. | 0 | $0 | 0.00% | −13,250−100.0% | Sold out |
| Williams & Novak, LLC | 0 | $0 | 0.00% | −10,250−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −2,563−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −400−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −200−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | – | – | – | – | Not filed |