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 $261.1M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Amtech Systems Inc as of Mar 31, 2026. 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
- 79
- +15 vs. Q4 2025
- Shares held
- 7.47M
- +1.96M (+35.4%) vs. Q4 2025
- Total value
- $87.4M
- +$18.1M (+26.2%) vs. Q4 2025
- New holders
- 23
- 28 more added
- Sold out
- 8
- 21 more reduced
1 institution that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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 | $261.1M |
| Q1 2026 | 79 | $87.4M |
| Q4 2025 | 65 | $77.2M |
| Q3 2025 | 54 | $42.1M |
| Q2 2025 | 36 | $18.3M |
| 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 | $66.7M |
| Q4 2022 | 49 | $50.2M |
| Q3 2022 | 43 | $76.1M |
| Q2 2022 | 40 | $65.7M |
| Q1 2022 | 46 | $94.6M |
| Q4 2021 | 50 | $96.5M |
| Q3 2021 | 52 | $77.6M |
| Q2 2021 | 56 | $65.2M |
| Q1 2021 | 64 | $83.7M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Amtech Systems Inc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | 832,453 | $9.72M | 0.02% | +98,107+13.4% | Added |
| Vanguard Capital Management LLC | 564,327 | $6.59M | 0.00% | +564,327 | New |
| Dimensional Fund Advisors LP | 529,351 | $6.18M | 0.00% | −142,756−21.2% | Reduced |
| Acadian Asset Management LLC | 466,837 | $5.45M | 0.01% | +230,829+97.8% | Added |
| Millennium Management LLC | 453,597 | $5.30M | 0.00% | +430,849+1,894.0% | Added |
| Marshall Wace, LLP | 417,076 | $4.87M | 0.01% | +64,452+18.3% | Added |
| Pacific Ridge Capital Partners, LLC | 405,371 | $4.73M | 1.03% | −222,440−35.4% | Reduced |
| Arrowstreet Capital, Limited Partnership | 365,387 | $4.27M | 0.00% | +18,354+5.3% | Added |
| Jane Street Group, LLC | 340,879 | $3.98M | 0.00% | +15,125+4.6% | Added |
| Two Sigma Investments, LP | 266,856 | $3.12M | 0.00% | +155,419+139.5% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 174,159 | $2.03M | 0.00% | +107,282+160.4% | Added |
| Trexquant Investment LP | 173,889 | $2.03M | 0.01% | +84,524+94.6% | Added |
| BlackRock, Inc. | 145,446 | $1.70M | 0.00% | +10,969+8.2% | Added |
| Susquehanna International Group, LLP | 133,938 | $1.56M | 0.00% | +53,308+66.1% | Added |
| Geode Capital Management, LLC | 132,149 | $1.54M | 0.00% | −852−0.6% | Reduced |
| Bridgeway Capital Management, LLC | 109,118 | $1.27M | 0.03% | +12,800+13.3% | Added |
| Renaissance Technologies LLC | 108,096 | $1.26M | 0.00% | −38,500−26.3% | Reduced |
| Citadel Advisors LLC | 106,914 | $1.25M | 0.00% | −17,929−14.4% | Reduced |
| Palisades Investment Partners, LLC | 100,656 | $1.18M | 0.46% | +100,656 | New |
| SEI Investments Co | 92,515 | $1.08M | 0.00% | +47,282+104.5% | Added |
| Qube Research & Technologies Ltd | 88,517 | $1.03M | 0.00% | +46,539+110.9% | Added |
| XTX Topco Ltd | 74,606 | $871.4K | 0.02% | +5,225+7.5% | Added |
| EAM Investors, LLC | 74,305 | $867.9K | 0.10% | 00.0% | Unchanged |
| UBS Group AG | 72,474 | $846.5K | 0.00% | +62,664+638.8% | Added |
| BNP Paribas Arbitrage, SA | 63,541 | $742.2K | 0.00% | +36,973+139.2% | Added |
| Vanguard Fiduciary Trust Co | 63,296 | $739.3K | 0.00% | +63,296 | New |
| Morgan Stanley | 59,092 | $690.2K | 0.00% | +45,881+347.3% | Added |
| State Street Corp | 57,340 | $669.7K | 0.00% | −5,450−8.7% | Reduced |
| O'Shaughnessy Asset Management, LLC | 50,727 | $592.5K | 0.00% | −10,236−16.8% | Reduced |
| New York State Common Retirement Fund | 41,509 | $484.8K | 0.00% | +41,509 | New |
| Ritholtz Wealth Management | 40,121 | $468.6K | 0.01% | +549+1.4% | Added |
| Northern Trust Corp | 39,004 | $455.6K | 0.00% | −173−0.4% | Reduced |
| Squarepoint Ops LLC | 38,690 | $451.9K | 0.00% | +22,013+132.0% | Added |
| Essex Investment Management Co LLC | 37,816 | $441.7K | 0.07% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 37,580 | $438.9K | 0.01% | +37,580 | New |
| Merit Financial Group, LLC | 37,000 | $432.2K | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 36,575 | $427.2K | 0.00% | −42,118−53.5% | Reduced |
| Empowered Funds, LLC | 32,318 | $377.5K | 0.00% | +32,318 | New |
| Man Group plc | 31,671 | $369.9K | 0.00% | +31,671 | New |
| Janney Montgomery Scott LLC | 30,760 | $359.0K | 0.00% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 29,758 | $347.6K | 0.00% | −38,396−56.3% | Reduced |
| Occudo Quantitative Strategies LP | 19,830 | $345.2K | 0.02% | −1,463−6.9% | Reduced |
| Dynamic Technology Lab Private Ltd | 28,141 | $328.7K | 0.05% | +28,141 | New |
| Ironwood Investment Management LLC | 27,198 | $317.7K | 0.13% | −339−1.2% | Reduced |
| GWM Advisors LLC | 26,891 | $314.1K | 0.00% | +12,291+84.2% | Added |
| American Century Companies Inc | 26,736 | $312.3K | 0.00% | +6,070+29.4% | Added |
| Gsa Capital Partners LLP | 25,630 | $299.0K | 0.02% | −5,118−16.6% | Reduced |
| Hillsdale Investment Management Inc. | 25,300 | $295.5K | 0.01% | +25,300 | New |
| Hudson Bay Capital Management LP | 24,083 | $281.3K | 0.00% | +2,530+11.7% | Added |
| Brevan Howard Capital Management LP | 23,714 | $277.0K | 0.00% | +23,714 | New |
| State of Wyoming | 23,688 | $276.7K | 0.03% | +23,688 | New |
| Bank of America Corp | 22,652 | $264.6K | 0.00% | +22,574+28,941.0% | Added |
| Virtu Financial LLC | 21,210 | $248.0K | 0.01% | +21,210 | New |
| Sowell Financial Services LLC | 20,206 | $236.0K | 0.01% | +4,050+25.1% | Added |
| HRT Financial LP | 20,181 | $235.0K | 0.00% | +20,181 | New |
| Villere St Denis J & Co LLC | 20,000 | $233.6K | 0.03% | 00.0% | Unchanged |
| LPL Financial LLC | 19,013 | $222.1K | 0.00% | +7,020+58.5% | Added |
| Schonfeld Strategic Advisors LLC | 18,804 | $219.6K | 0.00% | +18,804 | New |
| WealthTrust Axiom LLC | 16,300 | $190.4K | 0.05% | +5,000+44.2% | Added |
| James Investment Research Inc | 14,600 | $170.5K | 0.02% | 00.0% | Unchanged |
| Jump Financial, LLC | 13,280 | $155.1K | 0.00% | −17,020−56.2% | Reduced |
| Kovack Advisors, Inc. | 12,100 | $144.6K | 0.01% | −9,900−45.0% | Reduced |
| Walleye Capital LLC | 12,197 | $142.5K | 0.00% | +12,197 | New |
| Barclays PLC | 11,324 | $132.3K | 0.00% | −1,374−10.8% | Reduced |
| Virtus ETF Advisers LLC | 11,200 | $130.8K | 0.06% | +11,200 | New |
| Omers Administration Corp | 10,400 | $121.5K | 0.00% | −6,200−37.3% | Reduced |
| Truvestments Capital LLC | 8,990 | $105.0K | 0.02% | +8,990 | New |
| Vanguard Global Advisers, LLC | 4,282 | $50.0K | 0.00% | +4,282 | New |
| Group One Trading, L.P. | 3,311 | $38.7K | 0.00% | −4,238−56.1% | Reduced |
| Tower Research Capital LLC (TRC) | 1,941 | $22.7K | 0.00% | +1,941 | New |
| IFP Advisors, Inc | 1,019 | $11.9K | 0.00% | +1,019 | New |
| Strengthening Families & Communities, LLC | 490 | $5.72K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 338 | $3.95K | 0.00% | −307−47.6% | Reduced |
| CWM, LLC | 301 | $3.52K | 0.00% | +301 | New |
| JPMorgan Chase & Co | 258 | $2.86K | 0.00% | +258 | New |
| FMR LLC | 242 | $2.83K | 0.00% | −186−43.5% | Reduced |
| Russell Investments Group, Ltd. | 240 | $2.80K | 0.00% | +240 | New |
| Royal Bank of Canada | 191 | $2.00K | 0.00% | +145+315.2% | Added |
| SBI Securities Co., Ltd. | 30 | $350 | 0.00% | −100−76.9% | Reduced |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −69,997−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −30,542−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −21,815−100.0% | Sold out |
| Ancora Advisors, LLC | 0 | $0 | 0.00% | −16,247−100.0% | Sold out |
| Graham Capital Management, L.P. | 0 | $0 | 0.00% | −12,608−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −7,050−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2,388−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −681−100.0% | Sold out |
| Vanguard Group Inc | – | – | – | – | Not filed |