AMTECH SYSTEMS INC - ASYS
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AIGH Capital Management LLC | History | New | 1,252,000 | 28,896 | 1.82% | — | 1 | +1,252,000 | New | Q2 2026 | Aug 07, 2026 |
| First Eagle Investment Management, LLC | History | Added to | 848,426 | 19,581 | 0.03% | 0.02% | 2 | +15,973 | 1.92% | Q2 2026 | Aug 05, 2026 |
| BlackRock, Inc. | History | Added to | 763,487 | 17,621 | 0.0% | 0.0% | 3 | +618,041 | 424.93% | Q2 2026 | Aug 07, 2026 |
| AWM Investment Company, Inc. | History | New | 690,000 | 15,925 | 1.38% | — | 4 | +690,000 | New | Q2 2026 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | Added to | 580,502 | 13,397 | 0.0% | 0.0% | 5 | +16,175 | 2.87% | Q2 2026 | Aug 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Added to | 580,278 | 13,388 | 0.02% | 0.01% | 6 | +113,441 | 24.3% | Q2 2026 | Aug 13, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Reduced | 426,694 | 9,842 | 0.0% | 0.0% | 7 | -102,657 | -19.39% | Q2 2026 | Aug 11, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 398,564 | 9,198 | 0.01% | 0.0% | 8 | -18,512 | -4.44% | Q2 2026 | Aug 13, 2026 |
| JANE STREET GROUP, LLC | History | Added to | 354,865 | 8,190 | 0.0% | 0.0% | 9 | +13,986 | 4.1% | Q2 2026 | Aug 14, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | History | Reduced | 308,896 | 7,129 | 0.0% | 0.0% | 10 | -56,491 | -15.46% | Q2 2026 | Aug 13, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 284,836 | 6,575 | 0.0% | 0.0% | 11 | +152,687 | 115.54% | Q2 2026 | Aug 12, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | History | Added to | 282,388 | 6,517 | 0.01% | 0.0% | 12 | +108,229 | 62.14% | Q2 2026 | Aug 12, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Added to | 260,605 | 6,014 | 0.01% | 0.0% | 13 | +152,509 | 141.09% | Q2 2026 | Aug 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Reduced | 254,367 | 5,870 | 0.0% | 0.0% | 14 | -12,489 | -4.68% | Q2 2026 | Aug 14, 2026 |
| Regal Partners Ltd | History | New | 237,503 | 5,481 | 0.3% | — | 15 | +237,503 | New | Q2 2026 | Aug 13, 2026 |
| Qube Research & Technologies Ltd | History | Added to | 194,714 | 4,493 | 0.0% | 0.0% | 16 | +106,197 | 119.97% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | Added to | 155,849 | 3,596 | 0.0% | 0.0% | 17 | +98,509 | 171.8% | Q2 2026 | Sep 22, 2026 |
| CITADEL ADVISORS LLC | History | Added to | 151,946 | 3,506 | 0.0% | 0.0% | 18 | +22,232 | 17.14% | Q2 2026 | Sep 02, 2026 |
| Trexquant Investment LP | History | Reduced | 119,750 | 2,763 | 0.02% | 0.01% | 19 | -54,139 | -31.13% | Q2 2026 | Aug 14, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | History | Added to | 111,472 | 2,572 | 0.05% | 0.03% | 20 | +2,354 | 2.16% | Q2 2026 | Aug 14, 2026 |
| Palisades Investment Partners, LLC | History | Added to | 102,691 | 2,370 | 0.67% | 0.46% | 21 | +2,035 | 2.02% | Q2 2026 | Aug 04, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 96,042 | 2,216 | 0.0% | 0.0% | 22 | -72,596 | -43.05% | Q2 2026 | Aug 14, 2026 |
| NORTHERN TRUST CORP | History | Added to | 91,857 | 2,120 | 0.0% | 0.0% | 23 | +52,853 | 135.51% | Q2 2026 | Aug 13, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 90,626 | 2,091 | 0.0% | 0.0% | 24 | -362,971 | -80.02% | Q2 2026 | Aug 14, 2026 |
| MORGAN STANLEY | History | Added to | 82,999 | 1,915 | 0.0% | 0.0% | 25 | +23,907 | 40.46% | Q2 2026 | Aug 13, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | Added to | 81,805 | 1,888 | 0.0% | 0.0% | 26 | +18,509 | 29.24% | Q2 2026 | Aug 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | New | 81,351 | 1,877 | 0.0% | — | 27 | +81,351 | New | Q2 2026 | Aug 13, 2026 |
| Point72 Asset Management, L.P. | History | Added to | 79,684 | 1,839 | 0.0% | 0.0% | 28 | +49,926 | 167.77% | Q2 2026 | Aug 14, 2026 |
| UBS Group AG | History | Added to | 79,085 | 1,825 | 0.0% | 0.0% | 29 | +6,611 | 9.12% | Q2 2026 | Aug 13, 2026 |
| Informed Momentum Co LLC | History | Reduced | 72,579 | 1,675 | 0.15% | 0.1% | 30 | -1,726 | -2.32% | Q2 2026 | Aug 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 71,293 | 1,645 | 0.0% | 0.0% | 31 | +7,752 | 12.2% | Q2 2026 | Aug 13, 2026 |
| XTX Topco Ltd | History | Reduced | 69,832 | 1,611 | 0.02% | 0.02% | 32 | -4,774 | -6.4% | Q2 2026 | Aug 14, 2026 |
| LOS ANGELES CAPITAL MANAGEMENT LLC | History | New | 63,562 | 1,467 | 0.01% | — | 33 | +63,562 | New | Q2 2026 | Aug 13, 2026 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC | History | Added to | 54,829 | 1,265 | 0.01% | 0.0% | 34 | +4,102 | 8.09% | Q2 2026 | Aug 13, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 54,066 | 1,247 | 0.0% | 0.0% | 35 | +17,491 | 47.82% | Q2 2026 | Aug 14, 2026 |
| Capelight Capital Asset Management LP | History | New | 50,000 | 1,154 | 0.55% | — | 36 | +50,000 | New | Q2 2026 | Jul 14, 2026 |
| SEI INVESTMENTS CO | History | Reduced | 49,501 | 1,142 | 0.0% | 0.0% | 37 | -43,014 | -46.49% | Q2 2026 | Aug 14, 2026 |
| Man Group plc | History | Added to | 45,224 | 1,043 | 0.0% | 0.0% | 38 | +13,553 | 42.79% | Q2 2026 | Aug 14, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | Added to | 44,009 | 1,015 | 0.0% | 0.0% | 39 | +2,500 | 6.02% | Q2 2026 | Jul 29, 2026 |
| Hillsdale Investment Management Inc. | History | Added to | 43,080 | 994 | 0.02% | 0.01% | 40 | +17,780 | 70.28% | Q2 2026 | Aug 12, 2026 |
| Bank of New York Mellon Corp | History | New | 41,533 | 958 | 0.0% | — | 41 | +41,533 | New | Q2 2026 | Aug 06, 2026 |
| RITHOLTZ WEALTH MANAGEMENT | History | Added to | 41,374 | 954 | 0.01% | 0.01% | 42 | +1,253 | 3.12% | Q2 2026 | Aug 11, 2026 |
| OCCUDO QUANTITATIVE STRATEGIES LP | History | Added to | 38,616 | 891 | 0.05% | 0.02% | 43 | +18,786 | 94.74% | Q2 2026 | Aug 13, 2026 |
| Engineers Gate Manager LP | History | Added to | 38,552 | 889 | 0.01% | 0.01% | 44 | +972 | 2.59% | Q2 2026 | Aug 14, 2026 |
| GSA CAPITAL PARTNERS LLP | History | Added to | 37,814 | 873 | 0.06% | 0.02% | 45 | +12,184 | 47.54% | Q2 2026 | Aug 06, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Reduced | 37,761 | 871 | 0.11% | 0.07% | 46 | -55 | -0.15% | Q2 2026 | Aug 06, 2026 |
| Merit Financial Group, LLC | History | No change | 37,000 | 853 | 0.01% | 0.0% | 47 | 0 | 0.0% | Q2 2026 | Jul 20, 2026 |
| Empowered Funds, LLC | History | Added to | 34,672 | 800 | 0.0% | 0.0% | 48 | +2,354 | 7.28% | Q2 2026 | Aug 14, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | Added to | 34,536 | 797 | 0.0% | 0.0% | 49 | +7,800 | 29.17% | Q2 2026 | Aug 12, 2026 |
| Janney Montgomery Scott LLC | History | No change | 30,760 | 710 | 0.0% | 0.0% | 50 | 0 | 0.0% | Q2 2026 | Aug 05, 2026 |
| Optimus Capital Advisors, LLC | History | New | 30,000 | 692 | 0.37% | — | 51 | +30,000 | New | Q2 2026 | Jul 16, 2026 |
| Y-Intercept (Hong Kong) Ltd | History | New | 29,533 | 681 | 0.01% | — | 52 | +29,533 | New | Q2 2026 | Jul 13, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | New | 28,468 | 657 | 0.0% | — | 53 | +28,468 | New | Q2 2026 | Aug 14, 2026 |
| WINTON GROUP Ltd | History | New | 28,350 | 654 | 0.02% | — | 54 | +28,350 | New | Q2 2026 | Aug 07, 2026 |
| IRONWOOD INVESTMENT MANAGEMENT LLC | History | Reduced | 27,193 | 627 | 0.22% | 0.13% | 55 | -5 | -0.02% | Q2 2026 | Aug 14, 2026 |
| Marex Group Ltd | History | New | 26,118 | 602 | 0.0% | — | 56 | +26,118 | New | Q2 2026 | Aug 14, 2026 |
| Panoramic Capital, LLC | History | New | 25,000 | 577 | 0.25% | — | 57 | +25,000 | New | Q2 2026 | Aug 14, 2026 |
| SHIKIAR ASSET MANAGEMENT INC | History | New | 22,075 | 509 | 0.13% | — | 58 | +22,075 | New | Q2 2026 | Jul 21, 2026 |
| Dynamic Technology Lab Private Ltd | History | Reduced | 21,380 | 493 | 0.11% | 0.05% | 59 | -6,761 | -24.03% | Q2 2026 | Aug 13, 2026 |
| PEAK6 LLC | History | New | 21,000 | 484 | 0.0% | — | 60 | +21,000 | New | Q2 2026 | Aug 12, 2026 |
| Nuveen, LLC | History | New | 20,681 | 477 | 0.0% | — | 61 | +20,681 | New | Q2 2026 | Aug 11, 2026 |
| Sowell Financial Services LLC | History | No change | 20,206 | 466 | 0.02% | 0.01% | 62 | 0 | 0.0% | Q2 2026 | Jul 17, 2026 |
| VILLERE ST DENIS J & CO LLC | History | No change | 20,000 | 461 | 0.06% | 0.03% | 63 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| Schonfeld Strategic Advisors LLC | History | Added to | 18,976 | 437 | 0.0% | 0.0% | 64 | +172 | 0.91% | Q2 2026 | Aug 14, 2026 |
| LPL Financial LLC | History | Reduced | 18,026 | 416 | 0.0% | 0.0% | 65 | -987 | -5.19% | Q2 2026 | Aug 07, 2026 |
| WealthTrust Axiom LLC | History | Added to | 17,800 | 410 | 0.09% | 0.05% | 66 | +1,500 | 9.2% | Q2 2026 | Aug 11, 2026 |
| KTF INVESTMENTS, LLC | History | New | 17,000 | 392 | 0.04% | — | 67 | +17,000 | New | Q2 2026 | Aug 10, 2026 |
| NewEdge Advisors, LLC | History | Reduced | 15,823 | 365 | 0.0% | 0.0% | 68 | -11,068 | -41.16% | Q2 2026 | Aug 12, 2026 |
| Integrated Quantitative Investments LLC | History | New | 15,359 | 354 | 0.06% | — | 69 | +15,359 | New | Q2 2026 | Aug 14, 2026 |
| De Lisle Partners LLP | History | New | 15,000 | 346 | 0.04% | — | 70 | +15,000 | New | Q2 2026 | Aug 12, 2026 |
| JAMES INVESTMENT RESEARCH, INC. | History | No change | 14,600 | 336 | 0.03% | 0.02% | 71 | 0 | 0.0% | Q2 2026 | Jul 24, 2026 |
| STATE OF WISCONSIN INVESTMENT BOARD | History | New | 13,600 | 313 | 0.0% | — | 72 | +13,600 | New | Q2 2026 | Aug 14, 2026 |
| RHUMBLINE ADVISERS | History | New | 11,987 | 276 | 0.0% | — | 73 | +11,987 | New | Q2 2026 | Aug 11, 2026 |
| DEUTSCHE BANK AG\ | History | New | 11,647 | 268 | 0.0% | — | 74 | +11,647 | New | Q2 2026 | Aug 07, 2026 |
| VIRTUS ADVISERS, LLC | History | Added to | 11,481 | 264 | 0.1% | 0.06% | 75 | +281 | 2.51% | Q2 2026 | Aug 11, 2026 |
| BUFFALO BUSINESS & ESTATE SERVICES LTD | History | New | 11,173 | 257 | 0.03% | — | 76 | +11,173 | New | Q2 2026 | Jul 23, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 12,038 | 247 | 0.0% | 0.0% | 77 | +11,780 | 4565.89% | Q2 2026 | Aug 12, 2026 |
| WELLS FARGO & COMPANY/MN | History | New | 10,685 | 246 | 0.0% | — | 78 | +10,685 | New | Q2 2026 | Aug 14, 2026 |
| ExodusPoint Capital Management, LP | History | New | 10,557 | 243 | 0.0% | — | 79 | +10,557 | New | Q2 2026 | Aug 14, 2026 |
| State of Wyoming | History | Reduced | 10,170 | 234 | 0.02% | 0.03% | 80 | -13,518 | -57.07% | Q2 2026 | Aug 06, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 9,747 | 225 | 0.0% | — | 81 | +9,747 | New | Q2 2026 | Aug 14, 2026 |
| Invesco Ltd. | History | New | 9,260 | 213 | 0.0% | — | 83 | +9,260 | New | Q2 2026 | Aug 14, 2026 |
| Truvestments Capital LLC | History | Added to | 9,265 | 213 | 0.03% | 0.02% | 82 | +275 | 3.06% | Q2 2026 | Aug 12, 2026 |
| Legato Capital Management LLC | History | New | 8,898 | 205 | 0.02% | — | 84 | +8,898 | New | Q2 2026 | Aug 06, 2026 |
| STRS OHIO | History | New | 7,900 | 182 | 0.0% | — | 85 | +7,900 | New | Q2 2026 | Jul 30, 2026 |
| MetLife Investment Management, LLC | History | New | 7,046 | 162 | 0.0% | — | 86 | +7,046 | New | Q2 2026 | Aug 13, 2026 |
| CITIGROUP INC | History | New | 5,490 | 126 | 0.0% | — | 87 | +5,490 | New | Q2 2026 | Aug 03, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | New | 5,393 | 124 | 0.0% | — | 88 | +5,393 | New | Q2 2026 | Aug 14, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | New | 10,000 | 116 | 0.0% | — | 89 | +10,000 | New | Q2 2026 | Aug 14, 2026 |
| OSAIC HOLDINGS, INC. | History | Added to | 4,295 | 99 | 0.0% | 0.0% | 90 | +3,957 | 1170.71% | Q2 2026 | Aug 14, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 4,282 | 98 | 0.0% | 0.0% | 91 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| SIMPLEX TRADING, LLC | History | New | 4,230 | 97 | 0.0% | — | 92 | +4,230 | New | Q2 2026 | Aug 12, 2026 |
| GROUP ONE TRADING LLC | History | Added to | 4,170 | 96 | 0.0% | 0.0% | 93 | +859 | 25.94% | Q2 2026 | Aug 13, 2026 |
| BARCLAYS PLC | History | Reduced | 3,714 | 85 | 0.0% | 0.0% | 94 | -7,610 | -67.2% | Q2 2026 | Aug 14, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | New | 3,455 | 79 | 0.0% | — | 95 | +3,455 | New | Q2 2026 | Jul 23, 2026 |
| Kemnay Advisory Services Inc. | History | New | 2,250 | 51 | 0.01% | — | 96 | +2,250 | New | Q2 2026 | Aug 14, 2026 |
| Farther Finance Advisors, LLC | History | New | 1,700 | 39 | 0.0% | — | 97 | +1,700 | New | Q2 2026 | Jul 17, 2026 |
| Russell Investments Group, Ltd. | History | Added to | 1,176 | 27 | 0.0% | 0.0% | 98 | +936 | 390.0% | Q2 2026 | Aug 06, 2026 |
| Legal & General Group Plc | History | New | 1,136 | 26 | 0.0% | — | 99 | +1,136 | New | Q2 2026 | Aug 14, 2026 |
| Ameritas Investment Partners, Inc. | History | New | 1,063 | 24 | 0.0% | — | 100 | +1,063 | New | Q2 2026 | Aug 13, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 632 | 14 | 0.0% | 0.0% | 101 | -1,309 | -67.44% | Q2 2026 | Aug 11, 2026 |
| SBI Securities Co., Ltd. | History | Added to | 482 | 11 | 0.0% | — | 102 | +452 | 1506.67% | Q2 2026 | Jul 22, 2026 |
| Strengthening Families & Communities, LLC | History | No change | 490 | 11 | 0.0% | 0.0% | 103 | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 365 | 8 | 0.0% | 0.0% | 104 | +174 | 91.1% | Q2 2026 | Aug 14, 2026 |
| FMR LLC | History | Added to | 261 | 6 | 0.0% | 0.0% | 105 | +19 | 7.85% | Q2 2026 | Aug 13, 2026 |
| Arax Advisory Partners | History | New | 227 | 5 | 0.0% | — | 107 | +227 | New | Q2 2026 | Aug 10, 2026 |
| FIRST UNITED BANK & TRUST | History | New | 220 | 5 | 0.0% | — | 106 | +220 | New | Q2 2026 | Jul 20, 2026 |
| Parallel Advisors, LLC | History | New | 200 | 4 | 0.0% | — | 108 | +200 | New | Q2 2026 | Aug 05, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | New | 161 | 3 | 0.0% | — | 110 | +161 | New | Q2 2026 | Aug 24, 2026 |
| CWM, LLC | History | No change | 301 | 3 | 0.0% | 0.0% | 109 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| JONES FINANCIAL COMPANIES LLLP | History | New | 118 | 2 | 0.0% | — | 111 | +118 | New | Q2 2026 | Aug 14, 2026 |
| Horrell Capital Management, Inc. | History | New | 25 | 1 | 0.0% | — | 112 | +25 | New | Q2 2026 | Jul 16, 2026 |
| Pacific Ridge Capital Partners, LLC | History | Closed out | 0 | 0 | — | 1.03% | — | -405,371 | -100.0% | Q2 2026 | Aug 12, 2026 |
| Squarepoint Ops LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -38,690 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Hudson Bay Capital Management LP | History | Closed out | 0 | 0 | — | 0.0% | — | -24,083 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Brevan Howard Capital Management LP | History | Closed out | 0 | 0 | — | 0.0% | — | -23,714 | -100.0% | Q2 2026 | Aug 14, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | 0.0% | — | -22,652 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -21,210 | -100.0% | Q2 2026 | Aug 13, 2026 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -20,181 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Jump Financial, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -13,280 | -100.0% | Q2 2026 | Aug 13, 2026 |
| Walleye Capital LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -12,197 | -100.0% | Q2 2026 | Aug 03, 2026 |
| Kovack Advisors, Inc. | History | Closed out | 0 | 0 | — | 0.01% | — | -12,100 | -100.0% | Q2 2026 | Jul 28, 2026 |
| OMERS ADMINISTRATION Corp | History | Closed out | 0 | 0 | — | 0.0% | — | -10,400 | -100.0% | Q2 2026 | Aug 13, 2026 |
| IFP Advisors, Inc | History | Closed out | 0 | 0 | — | 0.0% | — | -1,019 | -100.0% | Q2 2026 | Jul 20, 2026 |
| Sterling Capital Management LLC | History | New | 41 | 0 | — | — | — | +41 | New | Q2 2026 | Jul 28, 2026 |
| Caitong International Asset Management Co., Ltd | History | New | 4 | 0 | — | — | — | +4 | New | Q2 2026 | Aug 04, 2026 |