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, Q3 2025
Institutional positions in Amtech Systems Inc as of Sep 30, 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
- 54
- +18 vs. Q2 2025
- Shares held
- 4.55M
- +449.8K (+11.0%) vs. Q2 2025
- Total value
- $42.1M
- +$23.9M (+131.4%) vs. Q2 2025
- New holders
- 24
- 8 more added
- Sold out
- 6
- 17 more reduced
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Amtech Systems Inc; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Dimensional Fund Advisors LP | 849,815 | $7.87M | 0.00% | −59,751−6.6% | Reduced |
| First Eagle Investment Management, LLC | 752,346 | $6.97M | 0.01% | −48,036−6.0% | Reduced |
| Vanguard Group Inc | 676,006 | $6.26M | 0.00% | +17,099+2.6% | Added |
| Pacific Ridge Capital Partners, LLC | 646,489 | $5.99M | 1.32% | −14,878−2.2% | Reduced |
| Arrowstreet Capital, Limited Partnership | 182,429 | $1.69M | 0.00% | +182,429 | New |
| Jane Street Group, LLC | 175,422 | $1.62M | 0.00% | +175,422 | New |
| BlackRock, Inc. | 132,873 | $1.23M | 0.00% | +8,275+6.6% | Added |
| Geode Capital Management, LLC | 131,281 | $1.22M | 0.00% | −5,093−3.7% | Reduced |
| Marshall Wace, LLP | 105,272 | $974.8K | 0.00% | +105,272 | New |
| Acadian Asset Management LLC | 83,532 | $771.0K | 0.00% | +40,564+94.4% | Added |
| Citadel Advisors LLC | 78,454 | $726.5K | 0.00% | +40,560+107.0% | Added |
| Bridgeway Capital Management, LLC | 64,800 | $600.0K | 0.01% | 00.0% | Unchanged |
| State Street Corp | 54,790 | $507.4K | 0.00% | 00.0% | Unchanged |
| Essex Investment Management Co LLC | 37,816 | $350.2K | 0.05% | +37,816 | New |
| Northern Trust Corp | 36,703 | $339.9K | 0.00% | −10,064−21.5% | Reduced |
| WealthTrust Axiom LLC | 35,800 | $331.5K | 0.09% | −6,324−15.0% | Reduced |
| Ancora Advisors, LLC | 35,247 | $326.4K | 0.01% | −75,775−68.3% | Reduced |
| Gsa Capital Partners LLP | 33,817 | $313.0K | 0.03% | −10,602−23.9% | Reduced |
| Kovack Advisors, Inc. | 32,150 | $297.7K | 0.03% | −40,850−56.0% | Reduced |
| Goldman Sachs Group Inc | 31,251 | $289.4K | 0.00% | +11,297+56.6% | Added |
| Ironwood Investment Management LLC | 27,591 | $255.5K | 0.11% | −207−0.7% | Reduced |
| Janney Montgomery Scott LLC | 26,700 | $247.0K | 0.00% | 00.0% | Unchanged |
| EHP Funds Inc. | 25,242 | $233.7K | 0.31% | +25,242 | New |
| Cubist Systematic Strategies, LLC | 24,844 | $230.1K | 0.00% | +24,844 | New |
| GWN Securities Inc. | 20,423 | $189.1K | 0.04% | +20,423 | New |
| Renaissance Technologies LLC | 20,300 | $188.0K | 0.00% | +5,800+40.0% | Added |
| Villere St Denis J & Co LLC | 20,000 | $185.2K | 0.02% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 19,937 | $184.6K | 0.00% | +19,937 | New |
| Wexford Capital LP | 18,808 | $174.2K | 0.05% | +18,808 | New |
| Brevan Howard Capital Management LP | 18,000 | $166.7K | 0.00% | +18,000 | New |
| HRT Financial LP | 16,463 | $152.0K | 0.00% | +16,463 | New |
| James Investment Research Inc | 14,600 | $135.2K | 0.01% | +14,600 | New |
| GWM Advisors LLC | 14,600 | $135.2K | 0.00% | +14,600 | New |
| Engineers Gate Manager LP | 13,442 | $124.5K | 0.00% | +13,442 | New |
| Thompson Davis & Co., Inc. | 13,250 | $122.7K | 0.08% | +13,250 | New |
| LPL Financial LLC | 12,815 | $118.7K | 0.00% | +12,815 | New |
| Millennium Management LLC | 11,946 | $110.6K | 0.00% | +11,946 | New |
| American Century Companies Inc | 10,623 | $98.4K | 0.00% | +10,623 | New |
| XTX Topco Ltd | 10,385 | $96.2K | 0.00% | −13,221−56.0% | Reduced |
| Williams & Novak, LLC | 10,250 | $94.9K | 0.07% | −8,135−44.2% | Reduced |
| Morgan Stanley | 7,738 | $71.7K | 0.00% | +5,127+196.4% | Added |
| Wells Fargo & Company | 2,563 | $23.7K | 0.00% | +2,563 | New |
| UBS Group AG | 2,030 | $18.8K | 0.00% | −10,799−84.2% | Reduced |
| Group One Trading, L.P. | 2,024 | $18.7K | 0.00% | +2,024 | New |
| Bank of America Corp | 1,686 | $15.6K | 0.00% | +1,487+747.2% | Added |
| Advisor Group Holdings, Inc. | 780 | $6.81K | 0.00% | −865−52.6% | Reduced |
| FMR LLC | 665 | $6.16K | 0.00% | −5,227−88.7% | Reduced |
| Strengthening Families & Communities, LLC | 490 | $4.54K | 0.00% | +490 | New |
| Signaturefd, LLC | 400 | $3.70K | 0.00% | +400 | New |
| Principal Securities, Inc. | 200 | $1.85K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 151 | $1.40K | 0.00% | −90−37.3% | Reduced |
| Barclays PLC | 30 | $278 | 0.00% | +30 | New |
| Citigroup Inc | 1 | $9 | 0.00% | +1 | New |
| Royal Bank of Canada | 36 | $0 | 0.00% | −35,464−99.9% | Reduced |
| Commonwealth Equity Services, LLC | 0 | $0 | 0.00% | −38,500−100.0% | Sold out |
| Sowell Financial Services LLC | 0 | $0 | 0.00% | −33,549−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −2,838−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −884−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −700−100.0% | Sold out |
| Jones Financial Companies LLLP | 0 | $0 | 0.00% | −10−100.0% | Sold out |