AMTECH SYS INC ASYS
COM PAR $0.01N · Common Stock · CUSIP 032332504
- SectorIndustrials
- IndustrySpecial Industry Machinery, NEC
- HeadquartersTempe, AZ
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($800.2k this quarter). Holder counts are more reliable. Shares outstanding: 17.5m as of 2026-07-31, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $23.09. Options: 7 managers hold calls ($4.4m notional), 5 hold puts ($1.3m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 43 |
| Q4 2022 | 50 |
| Q1 2023 | 45 |
| Q2 2023 | 45 |
| Q3 2023 | 43 |
| Q4 2023 | 46 |
| Q1 2024 | 42 |
| Q2 2024 | 35 |
| Q3 2024 | 35 |
| Q4 2024 | 36 |
| Q1 2025 | 38 |
| Q2 2025 | 37 |
| Q3 2025 | 54 |
| Q4 2025 | 65 |
| Q1 2026 | 79 |
| Q2 2026 | 113 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 9 | 16 |
| Q4 2024 | 17 | 20 |
| Q1 2025 | 24 | 10 |
| Q2 2025 | 17 | 16 |
| Q3 2025 | 32 | 23 |
| Q4 2025 | 46 | 25 |
| Q1 2026 | 48 | 29 |
| Q2 2026 | 86 | 32 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $468.8k | $1.0k | 0.00 |
| Q4 2025 | $1.4m | $350.1k | 0.26 |
| Q1 2026 | $522.1k | $183.4k | 0.35 |
| Q2 2026 | $4.4m | $1.3m | 0.29 |
Biggest buyers
| AIGH Capital Management LLC | New | +1.3m |
| First Eagle Investment Management, LLC | Added | +864.4k |
| AWM Investment Company, Inc. | New | +690.0k |
| BlackRock, Inc. | Added | +618.0k |
| Regal Partners Ltd | New | +237.5k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +152.7k |
| RENAISSANCE TECHNOLOGIES LLC | Added | +152.5k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +113.4k |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +108.2k |
| Qube Research & Technologies Ltd | Added | +106.2k |
Biggest sellers
| Pacific Ridge Capital Partners, LLC | Sold out | -405.4k |
| MILLENNIUM MANAGEMENT LLC | Reduced | -363.0k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -102.7k |
| JANE STREET GROUP, LLC | Reduced | -91.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -91.1k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Reduced | -56.5k |
| Trexquant Investment LP | Reduced | -54.1k |
| SEI INVESTMENTS CO | Reduced | -43.0k |
| Squarepoint Ops LLC | Sold out | -38.7k |
| Hudson Bay Capital Management LP | Sold out | -24.1k |
Biggest calls
| JANE STREET GROUP, LLC | New | $1.9m83.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $824.0k35.7k shares |
| CITADEL ADVISORS LLC | Added | $759.3k32.9k shares |
| PEAK6 LLC | New | $484.7k21.0k shares |
| IMC-Chicago, LLC | New | $343.9k14.9k shares |
| SIMPLEX TRADING, LLC | Added | $99.2k4.3k shares |
| GROUP ONE TRADING LLC | New | $2.3k100 shares |
Biggest puts
| JANE STREET GROUP, LLC | New | $517.0k22.4k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $403.9k17.5k shares |
| CITADEL ADVISORS LLC | New | $295.4k12.8k shares |
| GROUP ONE TRADING LLC | Added | $34.6k1.5k shares |
| SIMPLEX TRADING, LLC | Added | $25.4k1.1k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| PITON CAPITAL PARTNERS LLC 13D · may seek influence +0.4 pts · filed 2026-06-02 | 20.6% |
| Wax Asset Management, LLC 13G · institution -6.6 pts · filed 2026-02-13 | 9.2% |
| HIRSCHMAN ORIN 13G · institution new · filed 2026-07-27 | 7.2% |
| WASATCH ADVISORS LP 13G · institution new · filed 2026-10-09 | 6.8% |
Fell to 5% or below in the last year: First Eagle Investment Management, LLC (4.9%, 2026-08-06), DIMENSIONAL FUND ADVISORS LP (4.7%, 2026-01-21)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 1 | $181.6k | 0 | — | — |
| Q1 2025 | 1 | $462.2k | 0 | — | — |
| Q2 2025 | 2 | $263.1k | 0 | — | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 0 | — | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 2 | $77.8k | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-09-14 | SABOL THOMAS B Chief Financial Officer | Bought | $28.3k2.0k shares |
| 2026-08-24 | Shechter Guy President & CEO | Bought | $49.5k3.5k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| First Eagle Investment Management, LLC 0.03% of their portfolio | 1.7m $39.2m | Added +864.4k |
| AIGH Capital Management LLC 2.62% of their portfolio | 1.3m $28.9m | New |
| BlackRock, Inc. 0.00% of their portfolio | 763.5k $17.6m | Added +618.0k |
| AWM Investment Company, Inc. 1.38% of their portfolio | 690.0k $15.9m | New |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 580.5k $13.4m | Added +16.2k |
| ACADIAN ASSET MANAGEMENT LLC 0.02% of their portfolio | 580.3k $13.4m | Added +113.4k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 426.7k $9.8m | Reduced -102.7k |
| MARSHALL WACE, LLP 0.01% of their portfolio | 398.6k $9.2m | Reduced -18.5k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 308.9k $7.1m | Reduced -56.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 284.8k $6.6m | Added +152.7k |
| Connor, Clark & Lunn Investment Management Ltd. 0.01% of their portfolio | 282.4k $6.5m | Added +108.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 260.6k $6.0m | Added +152.5k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 254.4k $5.9m | Reduced -12.5k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 249.5k $5.8m | Reduced -91.4k |
| Regal Partners Ltd 0.30% of their portfolio | 237.5k $5.5m | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 194.7k $4.5m | Added +106.2k |
| STATE STREET CORP 0.00% of their portfolio | 155.8k $3.6m | Added +98.5k |
| Trexquant Investment LP 0.02% of their portfolio | 119.8k $2.8m | Reduced -54.1k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.05% of their portfolio | 111.5k $2.6m | Added +2.4k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 106.2k $2.5m | Reduced -668 |
| Palisades Investment Partners, LLC 0.67% of their portfolio | 102.7k $2.4m | Added +2.0k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 91.9k $2.1m | Added +52.9k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 90.6k $2.1m | Reduced -363.0k |
| MORGAN STANLEY 0.00% of their portfolio | 83.0k $1.9m | Added +23.9k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 81.8k $1.9m | Added +18.5k |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio | 81.4k $1.9m | New |
| Point72 Asset Management, L.P. 0.00% of their portfolio | 79.7k $1.8m | Added +49.9k |
| UBS Group AG 0.00% of their portfolio | 79.1k $1.8m | Added +6.6k |
| Informed Momentum Co LLC 0.15% of their portfolio | 72.6k $1.7m | Reduced -1.7k |
| BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio | 71.3k $1.6m | Added +7.8k |
| XTX Topco Ltd 0.02% of their portfolio | 69.8k $1.6m | Reduced -4.8k |
| LOS ANGELES CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 63.6k $1.5m | New |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC 0.01% of their portfolio | 54.8k $1.3m | Added +4.1k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 54.1k $1.2m | Added +17.5k |
| Capelight Capital Asset Management LP 0.58% of their portfolio | 50.0k $1.2m | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 49.5k $1.1m | Reduced -43.0k |
| Man Group plc 0.00% of their portfolio | 45.2k $1.0m | Added +13.6k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 44.0k $1.0m | Added +2.5k |
| Hillsdale Investment Management Inc. 0.02% of their portfolio | 43.1k $994.3k | Added +17.8k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 42.8k $988.8k | Reduced -91.1k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 41.5k $958.6k | New |
| RITHOLTZ WEALTH MANAGEMENT 0.01% of their portfolio | 41.4k $954.9k | Added +1.3k |
| OCCUDO QUANTITATIVE STRATEGIES LP 0.05% of their portfolio | 38.6k $891.3k | Added +18.8k |
| Engineers Gate Manager LP 0.01% of their portfolio | 38.6k $889.8k | Added +972 |
| GSA CAPITAL PARTNERS LLP 0.06% of their portfolio | 37.8k $873.0k | Added +12.2k |
| ESSEX INVESTMENT MANAGEMENT CO LLC 0.11% of their portfolio | 37.8k $871.5k | Reduced -55 |
| Merit Financial Group, LLC 0.01% of their portfolio | 37.0k $854.0k | Unchanged |
| Empowered Funds, LLC 0.00% of their portfolio | 34.7k $800.2k | Added +2.4k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 34.5k $797.1k | Added +7.8k |
| Janney Montgomery Scott LLC 0.00% of their portfolio | 30.8k $710.0k | Unchanged |
| Optimus Capital Advisors, LLC 0.37% of their portfolio | 30.0k $692.4k | New |
| Y-Intercept (Hong Kong) Ltd 0.01% of their portfolio | 29.5k $681.6k | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 28.5k $657.0k | New |
| WINTON GROUP Ltd 0.02% of their portfolio | 28.4k $654.3k | New |
| IRONWOOD INVESTMENT MANAGEMENT LLC 0.22% of their portfolio | 27.2k $627.6k | Reduced -5 |
| Marex Group Ltd 0.00% of their portfolio | 26.1k $602.8k | New |
| Panoramic Capital, LLC 0.25% of their portfolio | 25.0k $577.0k | New |
| SHIKIAR ASSET MANAGEMENT INC 0.13% of their portfolio | 22.1k $509.0k | New |
| Dynamic Technology Lab Private Ltd 0.11% of their portfolio | 21.4k $493.0k | Reduced -6.8k |
| Nuveen, LLC 0.00% of their portfolio | 20.7k $477.3k | New |
| Sowell Financial Services LLC 0.02% of their portfolio | 20.2k $466.4k | Unchanged |
| VILLERE ST DENIS J & CO LLC 0.06% of their portfolio | 20.0k $461.6k | Unchanged |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 19.0k $438.0k | Added +172 |
| LPL Financial LLC 0.00% of their portfolio | 18.0k $416.0k | Reduced -987 |
| WealthTrust Axiom LLC 0.09% of their portfolio | 17.8k $410.8k | Added +1.5k |
| KTF INVESTMENTS, LLC 0.04% of their portfolio | 17.0k $392.4k | New |
| NewEdge Advisors, LLC 0.00% of their portfolio | 15.8k $365.2k | Reduced -11.1k |
| Integrated Quantitative Investments LLC 0.06% of their portfolio | 15.4k $354.5k | New |
| De Lisle Partners LLP 0.04% of their portfolio | 15.0k $346.2k | New |
| JAMES INVESTMENT RESEARCH, INC. 0.03% of their portfolio | 14.6k $337.0k | Unchanged |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 13.6k $313.9k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 12.0k $247.9k | Added +11.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 12.0k $276.7k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 11.6k $268.8k | New |
| VIRTUS ADVISERS, LLC 0.10% of their portfolio | 11.5k $265.0k | Added +281 |
| BUFFALO BUSINESS & ESTATE SERVICES LTD 0.03% of their portfolio | 11.2k $257.9k | New |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 10.7k $246.6k | New |
| ExodusPoint Capital Management, LP 0.00% of their portfolio | 10.6k $243.7k | New |
| State of Wyoming 0.02% of their portfolio | 10.2k $234.7k | Reduced -13.5k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 10.0k $116.8k | New |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 9.7k $225.0k | New |
| Truvestments Capital LLC 0.03% of their portfolio | 9.3k $213.8k | Added +275 |
| Invesco Ltd. 0.00% of their portfolio | 9.3k $213.7k | New |
| Legato Capital Management LLC 0.02% of their portfolio | 8.9k $205.4k | New |
| STRS OHIO 0.00% of their portfolio | 7.9k $182.3k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 7.0k $162.6k | New |
| CITIGROUP INC 0.00% of their portfolio | 5.5k $126.7k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 5.4k $124.5k | New |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 4.3k $99.1k | Added +4.0k |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 4.3k $98.8k | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 4.2k $97.6k | New |
| GROUP ONE TRADING LLC 0.00% of their portfolio | 4.2k $96.2k | Added +859 |
| BARCLAYS PLC 0.00% of their portfolio | 3.7k $85.7k | Reduced -7.6k |
| Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio | 3.5k $79.7k | New |
| Kemnay Advisory Services Inc. 0.01% of their portfolio | 2.2k $51.9k | New |
| Farther Finance Advisors, LLC 0.00% of their portfolio | 1.7k $39.2k | New |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 1.2k $27.1k | Added +936 |
| Legal & General Group Plc 0.00% of their portfolio | 1.1k $26.2k | New |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 1.1k $24.5k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 632 $14.6k | Reduced -1.3k |