ASYS Amtech Systems Inc.
Amtech Systems Inc. (ASYS) Institutional Ownership
What the institutions did with ASYS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| First Eagle Investment Management, LLC | 1.7M | 15.0% |
| AIGH Capital Management LLC | 1.3M | 11.1% |
| BlackRock, Inc. | 763.5K | 6.8% |
| AWM Investment Company, Inc. | 690.0K | 6.1% |
| VANGUARD CAPITAL MANAGEMENT LLC | 580.5K | 5.1% |
| ACADIAN ASSET MANAGEMENT LLC | 580.3K | 5.1% |
| DIMENSIONAL FUND ADVISORS LP | 426.7K | 3.8% |
| MARSHALL WACE, LLP | 398.6K | 3.5% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 308.9K | 2.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 284.8K | 2.5% |
| Connor, Clark & Lunn Investment Management Ltd. | 282.4K | 2.5% |
| RENAISSANCE TECHNOLOGIES LLC | 260.6K | 2.3% |
| TWO SIGMA INVESTMENTS, LP | 254.4K | 2.2% |
| JANE STREET GROUP, LLC | 249.5K | 2.2% |
| Regal Partners Ltd | 237.5K | 2.1% |
| Qube Research & Technologies Ltd | 194.7K | 1.7% |
| STATE STREET CORP | 155.8K | 1.4% |
| Trexquant Investment LP | 119.8K | 1.1% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 111.5K | 1.0% |
| CITADEL ADVISORS LLC | 106.2K | 0.9% |
| Palisades Investment Partners, LLC | 102.7K | 0.9% |
| NORTHERN TRUST CORP | 91.9K | 0.8% |
| MILLENNIUM MANAGEMENT LLC | 90.6K | 0.8% |
| MORGAN STANLEY | 83.0K | 0.7% |
| VANGUARD FIDUCIARY TRUST CO | 81.8K | 0.7% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| AIGH Capital Management LLC | New | 0 | 1.3M | +1.3M |
| First Eagle Investment Management, LLC | Increased | 832.5K | 1.7M | +864.4K |
| AWM Investment Company, Inc. | New | 0 | 690.0K | +690.0K |
| BlackRock, Inc. | Increased | 145.4K | 763.5K | +618.0K |
| Pacific Ridge Capital Partners, LLC | Sold Out | 405.4K | 0 | -405.4K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 453.6K | 90.6K | -363.0K |
| Regal Partners Ltd | New | 0 | 237.5K | +237.5K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 132.1K | 284.8K | +152.7K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 108.1K | 260.6K | +152.5K |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 466.8K | 580.3K | +113.4K |
| Connor, Clark & Lunn Investment Management Ltd. | Increased | 174.2K | 282.4K | +108.2K |
| Qube Research & Technologies Ltd | Increased | 88.5K | 194.7K | +106.2K |
| DIMENSIONAL FUND ADVISORS LP | Reduced | 529.4K | 426.7K | -102.7K |
| STATE STREET CORP | Increased | 57.3K | 155.8K | +98.5K |
| JANE STREET GROUP, LLC | Reduced | 340.9K | 249.5K | -91.4K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | 133.9K | 42.8K | -91.1K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New | 0 | 81.4K | +81.4K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | New | 0 | 63.6K | +63.6K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | 365.4K | 308.9K | -56.5K |
| Trexquant Investment LP | Reduced | 173.9K | 119.8K | -54.1K |
| NORTHERN TRUST CORP | Increased | 39.0K | 91.9K | +52.9K |
| Capelight Capital Asset Management LP | New | 0 | 50.0K | +50.0K |
| Point72 Asset Management, L.P. | Increased | 29.8K | 79.7K | +49.9K |
| SEI INVESTMENTS CO | Reduced | 92.5K | 49.5K | -43.0K |
| Bank of New York Mellon Corp | New | 0 | 41.5K | +41.5K |
| Squarepoint Ops LLC | Sold Out | 38.7K | 0 | -38.7K |
| Optimus Capital Advisors, LLC | New | 0 | 30.0K | +30.0K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 29.5K | +29.5K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | New | 0 | 28.5K | +28.5K |
| WINTON GROUP Ltd | New | 0 | 28.4K | +28.4K |
| Marex Group plc | New | 0 | 26.1K | +26.1K |
| Panoramic Capital, LLC | New | 0 | 25.0K | +25.0K |
| Hudson Bay Capital Management LP | Sold Out | 24.1K | 0 | -24.1K |
| MORGAN STANLEY | Increased | 59.1K | 83.0K | +23.9K |
| Brevan Howard Capital Management LP | Sold Out | 23.7K | 0 | -23.7K |
| BANK OF AMERICA CORP /DE/ | Sold Out | 22.7K | 0 | -22.7K |
| SHIKIAR ASSET MANAGEMENT INC | New | 0 | 22.1K | +22.1K |
| Virtu Financial LLC | Sold Out | 21.2K | 0 | -21.2K |
| Nuveen, LLC | New | 0 | 20.7K | +20.7K |
| HRT FINANCIAL LP | Sold Out | 20.2K | 0 | -20.2K |
| OCCUDO QUANTITATIVE STRATEGIES LP | Increased | 19.8K | 38.6K | +18.8K |
| MARSHALL WACE, LLP | Reduced | 417.1K | 398.6K | -18.5K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 63.3K | 81.8K | +18.5K |
| Hillsdale Investment Management Inc. | Increased | 25.3K | 43.1K | +17.8K |
| GOLDMAN SACHS GROUP INC | Increased | 36.6K | 54.1K | +17.5K |
| KTF INVESTMENTS, LLC | New | 0 | 17.0K | +17.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 564.3K | 580.5K | +16.2K |
| Integrated Quantitative Investments LLC | New | 0 | 15.4K | +15.4K |
| De Lisle Partners LLP | New | 0 | 15.0K | +15.0K |
| STATE OF WISCONSIN INVESTMENT BOARD | New | 0 | 13.6K | +13.6K |
| Man Group plc | Increased | 31.7K | 45.2K | +13.6K |
| State of Wyoming | Reduced | 23.7K | 10.2K | -13.5K |
| Jump Financial, LLC | Sold Out | 13.3K | 0 | -13.3K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 266.9K | 254.4K | -12.5K |
| Walleye Capital LLC | Sold Out | 12.2K | 0 | -12.2K |
| GSA CAPITAL PARTNERS LLP | Increased | 25.6K | 37.8K | +12.2K |
| Kovack Advisors, Inc. | Sold Out | 12.1K | 0 | -12.1K |
| RHUMBLINE ADVISERS | New | 0 | 12.0K | +12.0K |
| JPMORGAN CHASE & CO | Increased | 258 | 12.0K | +11.8K |
| DEUTSCHE BANK AG\ | New | 0 | 11.6K | +11.6K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.