Amtech Systems Inc. 13F holders
111 funds reported a position in Amtech Systems Inc. in their 13F for the quarter ended 30 June 2026, together 11.3 million shares worth $260.9 million. Against the quarter before, 45 opened a position, 38 added, 19 trimmed and 12 sold out; together they bought a net 3.0 million shares. The largest holders: First Eagle Investment Management, LLC, AIGH Capital Management LLC and BlackRock, Inc.
Funds holding111+32 on Q1 2026
Shares they held11.3Mworth $260.9 million
Net bought on the quarter3.0M sharesabout $68.6 million at the funds' values
Funds buying to selling83 to 31opened or added, to cut or sold
Opened 45Added 38Held 9Trimmed 19Sold out 12
What each fund did in ASYS against its 13F for the quarter before; a change under 0.1% of a holding counts as held
Funds reporting a position in ASYS in their 13F, each quarter; hover a bar for the shares they held
Filed so far for the quarter to 30 September 2026
3,405 funds have filed their 13F for the quarter so far; the rest are due by 16 November 2026. Of those, 20 reported a position in Amtech Systems Inc.: 7 opened one, 3 added, 4 trimmed and 4 sold out, a net 1.2 million shares bought.
| Fund | Change in shares | Shares now | Status | Filing |
|---|---|---|---|---|
| Wasatch Advisors LP | +1,184,904 | 1,184,904 | new | 13F |
| Y-Intercept (Hong Kong) Ltd | +59,443 | 88,976 | added | 13F |
| Bokf, NA | +25,518 | 25,518 | new | 13F |
| KTF Investments, LLC | +23,000 | 40,000 | added | 13F |
| State of Wyoming | -8,665 | 1,505 | trimmed | 13F |
| Strs Ohio | -1,600 | 6,300 | trimmed | 13F |
| Exchange Traded Concepts, LLC | +1,350 | 1,350 | new | 13F |
| Farther Finance Advisors, LLC | -1,193 | 507 | trimmed | 13F |
| Sterling Capital Management LLC | +474 | 515 | added | 13F |
| Gamma Investing LLC | +410 | 410 | new | 13F |
| SJS Investment Consulting Inc. | +382 | 382 | new | 13F |
| SBI Securities Co., Ltd. | -95 | 387 | trimmed | 13F |
| Parkside Financial Bank & Trust | +33 | 33 | new | 13F |
| Caitong International Asset Management Co., Ltd | -4 | 0 | sold out | 13F |
| Capelight Capital Asset Management LP | -50,000 | 0 | sold out | 13F |
| Horrell Capital Management, Inc. | -25 | 0 | sold out | 13F |
| Shikiar Asset Management Inc. | -22,075 | 0 | sold out | 13F |
| Covestor Ltd | +4 | 4 | new | 13F |
The largest moves in the name among the funds that have filed, against each fund's previous 13F.
The well-known funds
Of the 44 funds followed here, 7 reported a position in Amtech Systems Inc. in a 13F for the quarter ended 30 June 2026. The largest: Geode Capital Management, 284,836 shares worth $6.6 million, 0.0% of its reported book. In the quarter, 4 funds added or opened a position and 3 trimmed or sold out; together they sold a net 20,987 shares, about $484,380 at the funds' own value per share on 30 June 2026. A change under 0.1% of a holding counts as held.
| Fund | Shares | Value | Of its book | Change on the quarter | Status | Quarter ended | Filing |
|---|---|---|---|---|---|---|---|
| Geode Capital Management | 284,836 | $6.6 million | 0.0% | +152,687 | added | 30 June 2026 | 13F |
| Renaissance Technologies | 260,605 | $6.0 million | 0.0% | +152,509 | added | 30 June 2026 | 13F |
| Two Sigma Investments | 254,367 | $5.9 million | 0.0% | -12,489 | trimmed | 30 June 2026 | 13F |
| Citadel Advisors | 106,246 | $2.5 million | 0.0% | -668 | trimmed | 30 June 2026 | 13F |
| Millennium Management | 90,626 | $2.1 million | 0.0% | -362,971 | trimmed | 30 June 2026 | 13F |
| Point72 Asset Management | 79,684 | $1.8 million | 0.0% | +49,926 | added | 30 June 2026 | 13F |
| FMR LLC | 261 | $6,018 | 0.0% | +19 | added | 30 June 2026 | 13F |
Value is what the fund reported.
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Change is shares against the fund's previous 13F; a fund with one filing read shows no change. 13Fs cover long US positions of managers above $100 million and are filed up to 45 days after the quarter.The largest holders
| Fund | Shares | Share of all | Value | Of its book | Change in shares | Filing |
|---|---|---|---|---|---|---|
| First Eagle Investment Management, LLC | 1,696,852 | 15.00% | $39.2 million | 0.03% | 13F | |
| AIGH Capital Management LLC | 1,252,000 | 11.07% | $28.9 million | 2.62% | new | 13F |
| BlackRock, Inc. | 763,487 | 6.75% | $17.6 million | 0.00% | +618,041 | 13F |
| AWM Investment Company, Inc. | 690,000 | 6.10% | $15.9 million | 1.38% | new | 13F |
| Vanguard Capital Management LLC | 580,502 | 5.13% | $13.4 million | 0.00% | +16,175 | 13F |
| Acadian Asset Management LLC | 580,278 | 5.13% | $13.4 million | 0.02% | +113,441 | 13F |
| Dimensional Fund Advisors LP | 426,694 | 3.77% | $9.8 million | 0.00% | -102,657 | 13F |
| Marshall Wace, LLP | 398,564 | 3.52% | $9.2 million | 0.01% | -18,512 | 13F |
| Arrowstreet Capital, Limited Partnership | 308,896 | 2.73% | $7.1 million | 0.00% | -56,491 | 13F |
| Geode Capital Management, LLC | 284,836 | 2.52% | $6.6 million | 0.00% | +152,687 | 13F |
| Connor, Clark & Lunn Investment Management Ltd. | 282,388 | 2.50% | $6.5 million | 0.01% | +108,229 | 13F |
| Renaissance Technologies LLC | 260,605 | 2.30% | $6.0 million | 0.01% | +152,509 | 13F |
| Two Sigma Investments, LP | 254,367 | 2.25% | $5.9 million | 0.01% | -12,489 | 13F |
| Jane Street Group, LLC | 249,465 | 2.21% | $5.8 million | 0.00% | -91,414 | 13F |
| Regal Partners Ltd | 237,503 | 2.10% | $5.5 million | 0.30% | new | 13F |
| Qube Research & Technologies Ltd | 194,714 | 1.72% | $4.5 million | 0.01% | +106,197 | 13F |
| State Street Corp. | 155,849 | 1.38% | $3.6 million | 0.00% | +98,509 | 13F |
| Trexquant Investment LP | 119,750 | 1.06% | $2.8 million | 0.02% | -54,139 | 13F |
| Bridgeway Capital Management, LLC | 111,472 | 0.99% | $2.6 million | 0.04% | +2,354 | 13F |
| Citadel Advisors LLC | 106,246 | 0.94% | $2.5 million | 0.00% | -668 | 13F |
| Palisades Investment Partners, LLC | 102,691 | 0.91% | $2.4 million | 0.67% | +2,035 | 13F |
| Northern Trust Corp. | 91,857 | 0.81% | $2.1 million | 0.00% | +52,853 | 13F |
| Millennium Management LLC | 90,626 | 0.80% | $2.1 million | 0.00% | -362,971 | 13F |
| Morgan Stanley | 82,999 | 0.73% | $1.9 million | 0.00% | +23,907 | 13F |
| Vanguard Fiduciary Trust Co. | 81,805 | 0.72% | $1.9 million | 0.00% | +18,509 | 13F |
| Vanguard Portfolio Management LLC | 81,351 | 0.72% | $1.9 million | 0.00% | new | 13F |
| Point72 Asset Management, L.P. | 79,684 | 0.70% | $1.8 million | 0.00% | +49,926 | 13F |
| UBS Group AG | 79,085 | 0.70% | $1.8 million | 0.00% | +6,611 | 13F |
| Informed Momentum Co LLC | 72,579 | 0.64% | $1.7 million | 0.15% | -1,726 | 13F |
| BNP Paribas Financial Markets | 71,293 | 0.63% | $1.6 million | 0.00% | +7,752 | 13F |
| XTX Topco Ltd | 69,832 | 0.62% | $1.6 million | 0.02% | -4,774 | 13F |
| Los Angeles Capital Management LLC | 63,562 | 0.56% | $1.5 million | 0.01% | new | 13F |
| O'shaughnessy Asset Management, LLC | 54,829 | 0.48% | $1.3 million | 0.01% | +4,102 | 13F |
| Goldman Sachs Group Inc. | 54,066 | 0.48% | $1.2 million | 0.00% | +17,491 | 13F |
| Capelight Capital Asset Management LP | 50,000 | 0.44% | $1.2 million | 0.57% | new | 13F |
| Sei Investments Co. | 49,501 | 0.44% | $1.1 million | 0.00% | -43,014 | 13F |
| Man Group plc | 45,224 | 0.40% | $1.0 million | 0.00% | +13,553 | 13F |
| New York State Common Retirement Fund | 44,009 | 0.39% | $1.0 million | 0.00% | +2,500 | 13F |
| Hillsdale Investment Management Inc. | 43,080 | 0.38% | $994,286 | 0.02% | +17,780 | 13F |
| Susquehanna International Group, LLP | 42,842 | 0.38% | $988,793 | 0.00% | -91,096 | 13F |
| Bank of New York Mellon Corp | 41,533 | 0.37% | $958,591 | 0.00% | new | 13F |
| Ritholtz Wealth Management | 41,374 | 0.37% | $954,912 | 0.01% | +1,253 | 13F |
| Occudo Quantitative Strategies LP | 38,616 | 0.34% | $891,257 | 0.05% | +18,786 | 13F |
| Engineers Gate Manager LP | 38,552 | 0.34% | $889,780 | 0.01% | +972 | 13F |
| Gsa Capital Partners LLP | 37,814 | 0.33% | $873,000 | 0.06% | +12,184 | 13F |
| Essex Investment Management Co. LLC | 37,761 | 0.33% | $871,524 | 0.11% | -55 | 13F |
| Merit Financial Group, LLC | 37,000 | 0.33% | $853,960 | 0.01% | no change | 13F |
| Empowered Funds, LLC | 34,672 | 0.31% | $800,230 | 0.00% | +2,354 | 13F |
| American Century Companies Inc. | 34,536 | 0.31% | $797,091 | 0.00% | +7,800 | 13F |
| Janney Montgomery Scott LLC | 30,760 | 0.27% | $710,000 | 0.00% | no change | 13F |
The 50 largest of the 111 funds that reported a position in ASYS in their 13F for the quarter ended 30 June 2026, by the value each reported.
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Share of all is the fund's part of all the shares the funds reported. Change is shares against the fund's 13F for the quarter before. A 13F lists a manager's long positions in US-listed shares at the quarter's end. What is a 13F?Options the funds reported on ASYS
| Fund | Option | Shares under the options | Value of those shares | Quarter ended | Filing |
|---|---|---|---|---|---|
| Citadel Advisors | Calls | 32,900 | $759,332 | 30 June 2026 | 13F |
| Citadel Advisors | Puts | 12,800 | $295,424 | 30 June 2026 | 13F |
A 13F lists calls and puts by the shares they cover and what those shares were worth at the quarter's end, not what the options cost.
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They are not counted in the holdings above. A put gains when the stock falls, a call when it rises, and a fund may hold either to hedge.Schedule 13D and 13G filed on the name, last twelve months
| Filed | Schedule | Who | Holding | Of the class | Event date | Rule or purpose | Filing |
|---|---|---|---|---|---|---|---|
| 9 October 2026 | 13G | Wasatch Advisors LP and 1 other | 1.2 million | 6.8% | 30 September 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 6 August 2026 | 13G/A | First Eagle Investment Management, LLC and 1 other | 848,697 | 4.9% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 27 July 2026 | 13G | Orin Hirschman and 3 others | 1.3 million | 7.2% | 30 June 2026 | passive, institutional (13d-1(b)) | EDGAR |
| 2 June 2026 | 13D/A | Piton Capital Partners LLC and 4 others | 3.0 million | 20.6% | 1 June 2026 | EDGAR | |
| 13 February 2026 | 13G/A | Wax Asset Management, LLC and 1 other | 1.3 million | 9.2% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
| 21 January 2026 | 13G/A | Dimensional Fund Advisors LP and 1 other | 672,107 | 4.7% | 31 December 2025 | passive, institutional (13d-1(b)) | EDGAR |
A Schedule 13D is filed by anyone who crosses 5% of a class with intent to influence; a 13G by a passive holder.
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Amendments (/A) report a change, including an exit to zero. Holding and percentage are as the filer stated them on the cover page; the purpose is the filer's own words, cut short. 13D and 13GFails to deliver
| Settlement date | Shares failed | Price | File |
|---|---|---|---|
| 31 August 2026 | 301 | $15.06 | SEC |
| 28 August 2026 | 199 | $15.83 | SEC |
| 27 August 2026 | 275 | $15.17 | SEC |
| 21 August 2026 | 600 | $14.62 | SEC |
| 14 August 2026 | 1,831 | $16.00 | SEC |
| 5 August 2026 | 300 | $17.44 | SEC |
| 4 August 2026 | 9 | $15.70 | SEC |
| 28 July 2026 | 638 | $15.41 | SEC |
| 24 July 2026 | 23 | $17.25 | SEC |
| 22 July 2026 | 41 | $17.98 | SEC |
| 21 July 2026 | 252 | $16.32 | SEC |
| 20 July 2026 | 250 | $16.67 | SEC |
| 16 July 2026 | 933 | $18.26 | SEC |
Shares that failed to deliver at settlement, per day, from the SEC's half-month files, which arrive about two weeks after the period.