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, Q2 2026
Institutional positions in Amtech Systems Inc as of Jun 30, 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
- 112
- +34 vs. Q1 2026
- Shares held
- 10.5M
- +2.99M (+40.0%) vs. Q1 2026
- Total value
- $241.5M
- +$154.2M (+176.4%) vs. Q1 2026
- New holders
- 46
- 39 more added
- Sold out
- 12
- 20 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Amtech Systems Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Renaissance Technologies LLC | 260,605 | $6.01M | 0.01% | +152,509+141.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 282,388 | $6.52M | 0.01% | +108,229+62.1% | Added |
| Geode Capital Management, LLC | 284,836 | $6.58M | 0.00% | +152,687+115.5% | Added |
| Arrowstreet Capital, Limited Partnership | 308,896 | $7.13M | 0.00% | −56,491−15.5% | Reduced |
| Marshall Wace, LLP | 398,564 | $9.20M | 0.01% | −18,512−4.4% | Reduced |
| Dimensional Fund Advisors LP | 426,694 | $9.84M | 0.00% | −102,657−19.4% | Reduced |
| Acadian Asset Management LLC | 580,278 | $13.4M | 0.02% | +113,441+24.3% | Added |
| Vanguard Capital Management LLC | 580,502 | $13.4M | 0.00% | +16,175+2.9% | Added |
| AWM Investment Company, Inc. | 690,000 | $15.9M | 1.38% | +690,000 | New |
| BlackRock, Inc. | 763,487 | $17.6M | 0.00% | +618,041+424.9% | Added |
| First Eagle Investment Management, LLC | 848,426 | $19.6M | 0.03% | +15,973+1.9% | Added |
| AIGH Capital Management LLC | 1,252,000 | $28.9M | 2.62% | +1,252,000 | New |
| Pacific Ridge Capital Partners, LLC | 0 | $0 | 0.00% | −405,371−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −38,690−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −24,083−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −23,714−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −22,652−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −21,210−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −20,181−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −13,280−100.0% | Sold out |
| Kovack Advisors, Inc. | 0 | $0 | 0.00% | −12,100−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −12,197−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −10,400−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −1,019−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |