Fund shareholders of Amtech Systems Inc
ISIN US0323325045 · United States · LEI 5299008VRUUPETM6HZ85
- Fund shareholders
- 43
- Of which ETFs
- 9 34 other funds
- Value held
- 32.6M $
- Share of capital
- 12.5 % of 17.5M shares on Jul 31, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| First Eagle Small Cap Opportunity Fund First Eagle Funds | 726,481 | 12.6M $ | 0.57 % | 4.15 % | as of Apr 30, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 430,540 | 5M $ | 0.00 % | 2.46 % | as of Mar 31, 2026 ↗ |
| Adara Smaller Companies Fund RBB Fund, Inc. | 158,540 | 2.1M $ | 0.27 % | 0.91 % | as of Feb 28, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 119,940 | 1.4M $ | 0.00 % | 0.69 % | as of Mar 31, 2026 ↗ |
| U.S. Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 99,906 | 1.7M $ | 0.01 % | 0.57 % | as of Apr 30, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 78,288 | 1.4M $ | 0.01 % | 0.45 % | as of Apr 30, 2026 ↗ |
| U.S. SMALL CAP VALUE PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 71,781 | 1.2M $ | 0.01 % | 0.41 % | as of Apr 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 57,546 | 751K $ | 0.00 % | 0.33 % | as of Feb 28, 2026 ↗ |
| Omni Small-Cap Value Fund Bridgeway Funds, Inc. | 49,200 | 574.7K $ | 0.05 % | 0.28 % | as of Mar 31, 2026 ↗ |
| Dimensional U.S. Small Cap ETF Dimensional ETF Trust | 46,598 | 811.3K $ | 0.01 % | 0.27 % | as of Apr 30, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 46,592 | 811.2K $ | 0.01 % | 0.27 % | as of Apr 30, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 34,301 | 400.6K $ | 0.03 % | 0.20 % | as of Mar 31, 2026 ↗ |
| Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 31,325 | 545.4K $ | 0.00 % | 0.18 % | as of Apr 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 24,600 | 287.3K $ | 0.23 % | 0.14 % | as of Mar 31, 2026 ↗ |
| Avantis U.S. Small Cap Value ETF American Century ETF Trust | 22,902 | 298.9K $ | 0.00 % | 0.13 % | as of Feb 28, 2026 ↗ |
| U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 21,237 | 369.7K $ | 0.00 % | 0.12 % | as of Apr 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 20,823 | 271.7K $ | 0.00 % | 0.12 % | as of Feb 28, 2026 ↗ |
| U.S. CORE EQUITY 1 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 18,946 | 329.8K $ | 0.00 % | 0.11 % | as of Apr 30, 2026 ↗ |
| Nationwide Bailard Small Cap Value Fund Nationwide Mutual Funds | 18,100 | 315.1K $ | 0.25 % | 0.10 % | as of Apr 30, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 17,416 | 227.3K $ | 0.00 % | 0.10 % | as of Feb 28, 2026 ↗ |
| Avantis U.S. Small Cap Equity ETF American Century ETF Trust | 12,330 | 160.9K $ | 0.01 % | 0.07 % | as of Feb 28, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 11,847 | 154.6K $ | 0.00 % | 0.07 % | as of Feb 28, 2026 ↗ |
| Virtus Small-Cap Fund Virtus Investment Trust | 11,200 | 130.8K $ | 0.12 % | 0.06 % | as of Mar 31, 2026 ↗ |
| VANGUARD BALANCED INDEX FUND VANGUARD VALLEY FORGE FUNDS | 8,117 | 94.8K $ | 0.00 % | 0.05 % | as of Mar 31, 2026 ↗ |
| U.S. VECTOR EQUITY PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 7,816 | 136.1K $ | 0.00 % | 0.04 % | as of Apr 30, 2026 ↗ |
| VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND VANGUARD INSTITUTIONAL INDEX FUNDS | 5,730 | 66.9K $ | 0.00 % | 0.03 % | as of Mar 31, 2026 ↗ |
| Dimensional US Sustainability Core 1 ETF Dimensional ETF Trust | 4,000 | 69.6K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| JNL/DFA U.S. Small Cap Fund JNL Series Trust | 3,100 | 36.2K $ | 0.00 % | 0.02 % | as of Mar 31, 2026 ↗ |
| AST Small-Cap Equity Portfolio Advanced Series Trust | 2,960 | 34.6K $ | 0.00 % | 0.02 % | as of Mar 31, 2026 ↗ |
| U.S. Sustainability Core 1 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 2,892 | 50.3K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| SA U.S. Small Company Fund SA FUNDS INVESTMENT TRUST | 2,822 | 33K $ | 0.01 % | 0.02 % | as of Mar 31, 2026 ↗ |
| Vericimetry U.S. Small Cap Value Fund VERICIMETRY FUNDS | 2,665 | 31.1K $ | 0.02 % | 0.02 % | as of Mar 31, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 2,532 | 29.6K $ | 0.02 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 2,010 | 35K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| Blackstone Alternative Multi-Strategy Fund Blackstone Alternative Investment Funds | 1,600 | 18.7K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 2 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 1,163 | 13.6K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Victory Extended Market Index Fund Victory Portfolios III | 1,124 | 19.6K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| JNL/DFA U.S. Core Equity Fund JNL Series Trust | 917 | 10.7K $ | 0.00 % | 0.01 % | as of Mar 31, 2026 ↗ |
| Small Cap Core Fund Northern Funds | 597 | 7K $ | 0.00 % | 0.00 % | as of Mar 31, 2026 ↗ |
| U.S. Social Core Equity 2 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 531 | 9.2K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Knights of Columbus U.S. ALL CAP INDEX FUND ADVISORS' INNER CIRCLE III | 61 | 1.1K $ | 0.00 % | 0.00 % | as of Apr 30, 2026 ↗ |
| Dimensional US Core Equity Market ETF Dimensional ETF Trust | 8 | 139.3 $ | 0.00 % | as of Apr 30, 2026 ↗ | |
| Dimensional US Vector Equity ETF Dimensional ETF Trust | 8 | 139.3 $ | 0.00 % | as of Apr 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table counts shares; this one measures what the company weighs inside each fund.
| Fund | Weight in fund | |
|---|---|---|
| First Eagle Small Cap Opportunity Fund First Eagle Funds | 0.57 % | as of Apr 30, 2026 ↗ |
| Adara Smaller Companies Fund RBB Fund, Inc. | 0.27 % | as of Feb 28, 2026 ↗ |
| Nationwide Bailard Small Cap Value Fund Nationwide Mutual Funds | 0.25 % | as of Apr 30, 2026 ↗ |
| Ultra-Small Company Market Fund Bridgeway Funds, Inc. | 0.23 % | as of Mar 31, 2026 ↗ |
| Virtus Small-Cap Fund Virtus Investment Trust | 0.12 % | as of Mar 31, 2026 ↗ |
| Omni Small-Cap Value Fund Bridgeway Funds, Inc. | 0.05 % | as of Mar 31, 2026 ↗ |
| iShares Micro-Cap ETF iShares Trust | 0.03 % | as of Mar 31, 2026 ↗ |
| Vericimetry U.S. Small Cap Value Fund VERICIMETRY FUNDS | 0.02 % | as of Mar 31, 2026 ↗ |
| 1290 VT Micro Cap Portfolio EQ Advisors Trust | 0.02 % | as of Mar 31, 2026 ↗ |
| U.S. Targeted Value Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 0.01 % | as of Apr 30, 2026 ↗ |
Quarter after quarter
Each SEC quarterly data set, newest first. The change is read against the quarter before it.
| Quarter | Shareholders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 43 | 0 | 2,181,092 | -3.0 % |
| 2026Q1 | 43 | +1 | 2,249,661 | -10.0 % |
| 2025Q4 | 42 | +2 | 2,499,862 | -8.0 % |
| 2025Q3 | 40 | -7 | 2,715,856 | -12.7 % |
| 2025Q2 | 47 | +2 | 3,112,622 | -14.2 % |
| 2025Q1 | 45 | +2 | 3,629,235 | -5.2 % |
| 2024Q4 | 43 | +1 | 3,827,784 | +0.5 % |
| 2024Q3 | 42 | -4 | 3,806,899 | -0.0 % |
| 2024Q2 | 46 | -2 | 3,808,373 | +0.3 % |
| 2024Q1 | 48 | -5 | 3,795,347 | -2.3 % |
| 2023Q4 | 53 | 3,884,175 |
Institutional managers
76 managers declare this company to the SEC (Form 13F); the 25 largest follow.
| Manager | Shares | Value | |
|---|---|---|---|
| First Eagle Investment Management, LLC | 832,453 | 9.7M $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 529,351 | 6.2M $ | as of Mar 31, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | 466,837 | 5.4K $ | as of Mar 31, 2026 |
| MILLENNIUM MANAGEMENT LLC | 453,597 | 5.3M $ | as of Mar 31, 2026 |
| MARSHALL WACE, LLP | 417,076 | 4.9M $ | as of Mar 31, 2026 |
| Pacific Ridge Capital Partners, LLC | 405,371 | 4.7M $ | as of Mar 31, 2026 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 365,387 | 4.3M $ | as of Mar 31, 2026 |
| JANE STREET GROUP, LLC | 340,879 | 4M $ | as of Mar 31, 2026 |
| TWO SIGMA INVESTMENTS, LP | 266,856 | 3.1M $ | as of Mar 31, 2026 |
| Connor, Clark & Lunn Investment Management Ltd. | 174,159 | 2M $ | as of Mar 31, 2026 |
| Trexquant Investment LP | 173,889 | 2M $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 145,446 | 1.7M $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 133,938 | 1.6M $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 132,149 | 1.5M $ | as of Mar 31, 2026 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 109,118 | 1.3M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 108,096 | 1.3M $ | as of Mar 31, 2026 |
| CITADEL ADVISORS LLC | 106,914 | 1.2M $ | as of Mar 31, 2026 |
| Palisades Investment Partners, LLC | 100,656 | 1.2M $ | as of Mar 31, 2026 |
| SEI INVESTMENTS CO | 92,515 | 1.1M $ | as of Mar 31, 2026 |
| Qube Research & Technologies Ltd | 88,517 | 1M $ | as of Mar 31, 2026 |
| XTX Topco Ltd | 74,606 | 871.4K $ | as of Mar 31, 2026 |
| Informed Momentum Co LLC | 74,305 | 867.9K $ | as of Mar 31, 2026 |
| UBS Group AG | 72,474 | 846.5K $ | as of Mar 31, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | 63,541 | 742.2K $ | as of Mar 31, 2026 |
| MORGAN STANLEY | 59,092 | 690.2K $ | as of Mar 31, 2026 |
Declared shareholders of Amtech Systems Inc
1 beneficial ownership filing. These stakes do not add up: an asset manager filing aggregates its own funds, already counted above.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| Piton Capital Partners LLC and 4 others | 20.60 % | 2,986,341 | as of Jun 1, 2026 · SCHEDULE 13D |
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