AMTECH SYSTEMS INC (ASYS) — Institutional Holders, Q2 2026
113 institutional investment managers reported a ASYS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $241.5M. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
ASYS in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- AIGH Capital ManagementNew · +1,252,000 sh+$28.9M
- AWM Investment CompanyNew · +690,000 sh+$15.9M
- BlackRockAdded · +618,041 sh+$14.3M
- Regal Partners LtdNew · +237,503 sh+$5.5M
- GEODE CAPITAL MANAGEMENTAdded · +152,687 sh+$3.5M
Biggest sellers
- Pacific Ridge Capital PartnersSold out · -405,371 sh-$9.4M
- MILLENNIUM MANAGEMENTTrimmed · -362,971 sh-$8.4M
- DIMENSIONAL FUND ADVISORSTrimmed · -102,657 sh-$2.4M
- JANE STREET GROUPTrimmed · -91,414 sh-$2.1M
- SUSQUEHANNA INTERNATIONAL GROUP, LLPTrimmed · -91,096 sh-$2.1M
ASYS 13F holders ranked 1–100 of 113
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | AIGH Capital Management#1 · 1,252,000 sh | 1,252,000 | $28.9M | 1.82% | New |
| 2 | First Eagle Investment Management#2 · 848,426 sh | 848,426 | $19.6M | 0.03% | +1.9% |
| 3 | BlackRock#3 · 763,487 sh | 763,487 | $17.6M | <0.01% | +424.9% |
| 4 | AWM Investment Company#4 · 690,000 sh | 690,000 | $15.9M | 1.38% | New |
| 5 | VANGUARD CAPITAL MANAGEMENT#5 · 580,502 sh | 580,502 | $13.4M | <0.01% | +2.9% |
| 6 | ACADIAN ASSET MANAGEMENT#6 · 580,278 sh | 580,278 | $13.4M | 0.02% | +24.3% |
| 7 | DIMENSIONAL FUND ADVISORS#7 · 426,694 sh | 426,694 | $9.8M | <0.01% | -19.4% |
| 8 | MARSHALL WACE, LLP#8 · 398,564 sh | 398,564 | $9.2M | <0.01% | -4.4% |
| 9 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP#9 · 308,896 sh | 308,896 | $7.1M | <0.01% | -15.5% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 284,836 sh | 284,836 | $6.6M | <0.01% | +115.5% |
| 11 | Connor, Clark & Lunn Investment Management Ltd.#11 · 282,388 sh | 282,388 | $6.5M | 0.01% | +62.1% |
| 12 | RENAISSANCE TECHNOLOGIES#12 · 260,605 sh | 260,605 | $6.0M | <0.01% | +141.1% |
| 13 | TWO SIGMA INVESTMENTS#13 · 254,367 sh | 254,367 | $5.9M | <0.01% | -4.7% |
| 14 | JANE STREET GROUP#14 · 249,465 sh | 249,465 | $5.8M | <0.01% | -26.8% |
| 15 | Regal Partners Ltd#15 · 237,503 sh | 237,503 | $5.5M | 0.30% | New |
| 16 | Qube Research & Technologies Ltd#16 · 194,714 sh | 194,714 | $4.5M | <0.01% | +120.0% |
| 17 | STATE STREET#17 · 155,849 sh | 155,849 | $3.6M | <0.01% | +171.8% |
| 18 | Trexquant Investment#18 · 119,750 sh | 119,750 | $2.8M | 0.02% | -31.1% |
| 19 | BRIDGEWAY CAPITAL MANAGEMENT#19 · 111,472 sh | 111,472 | $2.6M | 0.05% | +2.2% |
| 20 | CITADEL ADVISORS#20 · 106,246 sh | 106,246 | $2.5M | <0.01% | -0.6% |
| 21 | Palisades Investment Partners#21 · 102,691 sh | 102,691 | $2.4M | 0.67% | +2.0% |
| 22 | NORTHERN#22 · 91,857 sh | 91,857 | $2.1M | <0.01% | +135.5% |
| 23 | MILLENNIUM MANAGEMENT#23 · 90,626 sh | 90,626 | $2.1M | <0.01% | -80.0% |
| 24 | MORGAN STANLEY#24 · 82,999 sh | 82,999 | $1.9M | <0.01% | +40.5% |
| 25 | VANGUARD FIDUCIARY#25 · 81,805 sh | 81,805 | $1.9M | <0.01% | +29.2% |
| 26 | VANGUARD PORTFOLIO MANAGEMENT#26 · 81,351 sh | 81,351 | $1.9M | <0.01% | New |
| 27 | Point72 Asset Management, L.P.#27 · 79,684 sh | 79,684 | $1.8M | <0.01% | +167.8% |
| 28 | UBS Group AG#28 · 79,085 sh | 79,085 | $1.8M | <0.01% | +9.1% |
| 29 | Informed Momentum#29 · 72,579 sh | 72,579 | $1.7M | 0.15% | -2.3% |
| 30 | BNP PARIBAS FINANCIAL MARKETS#30 · 71,293 sh | 71,293 | $1.6M | <0.01% | +12.2% |
| 31 | XTX Topco Ltd#31 · 69,832 sh | 69,832 | $1.6M | 0.02% | -6.4% |
| 32 | LOS ANGELES CAPITAL MANAGEMENT#32 · 63,562 sh | 63,562 | $1.5M | <0.01% | New |
| 33 | O'SHAUGHNESSY ASSET MANAGEMENT#33 · 54,829 sh | 54,829 | $1.3M | <0.01% | +8.1% |
| 34 | GOLDMAN SACHS GROUP#34 · 54,066 sh | 54,066 | $1.2M | <0.01% | +47.8% |
| 35 | Capelight Capital Asset Management#35 · 50,000 sh | 50,000 | $1.2M | — | New |
| 36 | SEI INVESTMENTS#36 · 49,501 sh | 49,501 | $1.1M | <0.01% | -46.5% |
| 37 | Man Group plc#37 · 45,224 sh | 45,224 | $1.0M | <0.01% | +42.8% |
| 38 | NEW YORK STATE COMMON RETIREMENT FUND#38 · 44,009 sh | 44,009 | $1.0M | <0.01% | +6.0% |
| 39 | Hillsdale Investment Management#39 · 43,080 sh | 43,080 | $994.3K | 0.02% | +70.3% |
| 40 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#40 · 42,842 sh | 42,842 | $988.8K | <0.01% | -68.0% |
| 41 | Bank of New York Mellon#41 · 41,533 sh | 41,533 | $958.6K | <0.01% | New |
| 42 | RITHOLTZ WEALTH MANAGEMENT#42 · 41,374 sh | 41,374 | $954.9K | 0.01% | +3.1% |
| 43 | OCCUDO QUANTITATIVE STRATEGIES#43 · 38,616 sh | 38,616 | $891.3K | 0.05% | +94.7% |
| 44 | Engineers Gate Manager#44 · 38,552 sh | 38,552 | $889.8K | 0.01% | +2.6% |
| 45 | GSA CAPITAL PARTNERS LLP#45 · 37,814 sh | 37,814 | $873.0K | 0.06% | +47.5% |
| 46 | ESSEX INVESTMENT MANAGEMENT#46 · 37,761 sh | 37,761 | $871.5K | — | -0.1% |
| 47 | Merit Financial Group#47 · 37,000 sh | 37,000 | $854.0K | <0.01% | 0.0% |
| 48 | Empowered Funds#48 · 34,672 sh | 34,672 | $800.2K | <0.01% | +7.3% |
| 49 | AMERICAN CENTURY COMPANIES#49 · 34,536 sh | 34,536 | $797.1K | <0.01% | +29.2% |
| 50 | Janney Montgomery Scott#50 · 30,760 sh | 30,760 | $710.0K | <0.01% | 0.0% |
| 51 | Optimus Capital Advisors#51 · 30,000 sh | 30,000 | $692.4K | 0.37% | New |
| 52 | Y-Intercept (Hong Kong) Ltd#52 · 29,533 sh | 29,533 | $681.6K | — | New |
| 53 | CHARLES SCHWAB INVESTMENT MANAGEMENT#53 · 28,468 sh | 28,468 | $657.0K | <0.01% | New |
| 54 | WINTON GROUP Ltd#54 · 28,350 sh | 28,350 | $654.3K | 0.02% | New |
| 55 | IRONWOOD INVESTMENT MANAGEMENT#55 · 27,193 sh | 27,193 | $627.6K | 0.22% | 0.0% |
| 56 | Marex Group plc#56 · 26,118 sh | 26,118 | $602.8K | <0.01% | New |
| 57 | Panoramic Capital#57 · 25,000 sh | 25,000 | $577.0K | 0.25% | New |
| 58 | SHIKIAR ASSET MANAGEMENT#58 · 22,075 sh | 22,075 | $509.0K | — | New |
| 59 | Dynamic Technology Lab Private Ltd#59 · 21,380 sh | 21,380 | $493.0K | 0.11% | -24.0% |
| 60 | Nuveen#60 · 20,681 sh | 20,681 | $477.3K | <0.01% | New |
| 61 | Sowell Financial Services#61 · 20,206 sh | 20,206 | $466.4K | — | 0.0% |
| 62 | VILLERE ST DENIS J#62 · 20,000 sh | 20,000 | $461.6K | 0.06% | 0.0% |
| 63 | Schonfeld Strategic Advisors#63 · 18,976 sh | 18,976 | $438.0K | <0.01% | +0.9% |
| 64 | LPL Financial#64 · 18,026 sh | 18,026 | $416.0K | <0.01% | -5.2% |
| 65 | WealthTrust Axiom#65 · 17,800 sh | 17,800 | $410.8K | 0.09% | +9.2% |
| 66 | KTF INVESTMENTS#66 · 17,000 sh | 17,000 | $392.4K | — | New |
| 67 | NewEdge Advisors#67 · 15,823 sh | 15,823 | $365.2K | <0.01% | -35.5% |
| 68 | Integrated Quantitative Investments#68 · 15,359 sh | 15,359 | $354.5K | 0.06% | New |
| 69 | De Lisle Partners LLP#69 · 15,000 sh | 15,000 | $346.2K | 0.04% | New |
| 70 | JAMES INVESTMENT RESEARCH#70 · 14,600 sh | 14,600 | $337.0K | — | 0.0% |
| 71 | STATE OF WISCONSIN INVESTMENT BOARD#71 · 13,600 sh | 13,600 | $313.9K | <0.01% | New |
| 72 | RHUMBLINE ADVISERS#72 · 11,987 sh | 11,987 | $276.7K | <0.01% | New |
| 73 | DEUTSCHE BANK AG\#73 · 11,647 sh | 11,647 | $268.8K | <0.01% | New |
| 74 | VIRTUS ADVISERS#74 · 11,481 sh | 11,481 | $265.0K | 0.10% | +2.5% |
| 75 | BUFFALO BUSINESS & ESTATE SERVICES LTD#75 · 11,173 sh | 11,173 | $257.9K | 0.03% | New |
| 76 | JPMORGAN CHASE#76 · 12,038 sh | 12,038 | $247.9K | 0.00% | +4565.9% |
| 77 | WELLS FARGO & COMPANY#77 · 10,685 sh | 10,685 | $246.6K | 0.00% | New |
| 78 | ExodusPoint Capital Management#78 · 10,557 sh | 10,557 | $243.7K | <0.01% | New |
| 79 | State of Wyoming#79 · 10,170 sh | 10,170 | $234.7K | 0.02% | -57.1% |
| 80 | PRICE T ROWE ASSOCIATES#80 · 9,747 sh | 9,747 | $225.0K | 0.00% | New |
| 81 | Truvestments Capital#81 · 9,265 sh | 9,265 | $213.8K | 0.03% | +3.1% |
| 82 | Invesco Ltd.#82 · 9,260 sh | 9,260 | $213.7K | 0.00% | New |
| 83 | Legato Capital Management#83 · 8,898 sh | 8,898 | $205.4K | 0.02% | New |
| 84 | STRS OHIO#84 · 7,900 sh | 7,900 | $182.3K | <0.01% | New |
| 85 | MetLife Investment Management#85 · 7,046 sh | 7,046 | $162.6K | <0.01% | New |
| 86 | CITIGROUP#86 · 5,490 sh | 5,490 | $126.7K | 0.00% | New |
| 87 | MIRAE ASSET GLOBAL ETFS Ltd.#87 · 5,393 sh | 5,393 | $124.5K | <0.01% | New |
| 88 | ALLIANCEBERNSTEIN L.P.#88 · 10,000 sh | 10,000 | $116.8K | 0.00% | New |
| 89 | OSAIC#89 · 4,295 sh | 4,295 | $99.1K | <0.01% | +1170.7% |
| 90 | Vanguard Global Advisers#90 · 4,282 sh | 4,282 | $98.8K | 0.00% | 0.0% |
| 91 | SIMPLEX TRADING#91 · 4,230 sh | 4,230 | $97.6K | <0.01% | New |
| 92 | GROUP ONE TRADING, L.P.#92 · 4,170 sh | 4,170 | $96.2K | <0.01% | +25.9% |
| 93 | BARCLAYS PLC#93 · 3,714 sh | 3,714 | $85.7K | 0.00% | -67.2% |
| 94 | Police & Firemen's Retirement System of New Jersey#94 · 3,455 sh | 3,455 | $79.7K | <0.01% | New |
| 95 | Kemnay Advisory Services#95 · 2,250 sh | 2,250 | $51.9K | <0.01% | New |
| 96 | Farther Finance Advisors#96 · 1,700 sh | 1,700 | $39.2K | — | New |
| 97 | Russell Investments Group, Ltd.#97 · 1,176 sh | 1,176 | $27.1K | 0.00% | +390.0% |
| 98 | Legal & General Group Plc#98 · 1,136 sh | 1,136 | $26.2K | 0.00% | New |
| 99 | Ameritas Investment Partners#99 · 1,063 sh | 1,063 | $24.5K | <0.01% | New |
| 100 | Tower Research Capital (TRC)#100 · 632 sh | 632 | $14.6K | <0.01% | -67.4% |
Funds that sold out of ASYS in Q2 2026 (12)
Held ASYS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Pacific Ridge Capital Partners405,371 sh | 405,371 | $4.7M |
| Squarepoint Ops38,690 sh | 38,690 | $451.9K |
| Hudson Bay Capital Management24,083 sh | 24,083 | $281.3K |
| Brevan Howard Capital Management23,714 sh | 23,714 | $277.0K |
| BANK OF AMERICA22,652 sh | 22,652 | $264.6K |
| Virtu Financial21,210 sh | 21,210 | $248.0K |
| HRT FINANCIAL20,181 sh | 20,181 | $235.0K |
| Jump Financial13,280 sh | 13,280 | $155.1K |
| Kovack Advisors12,100 sh | 12,100 | $144.6K |
| Walleye Capital12,197 sh | 12,197 | $142.5K |
| OMERS ADMINISTRATION10,400 sh | 10,400 | $121.5K |
| IFP Advisors1,019 sh | 1,019 | $11.9K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.