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Amtech Systems (ASYS) Institutional Ownership

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$16.04 +0.04 (+0.25%)
Closing price 08/14/2026 04:00 PM Eastern
Extended Trading
$16.12 +0.08 (+0.50%)
As of 08/14/2026 07:48 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Amtech Systems (NASDAQ:ASYS)

Current
Institutional Ownership
Percentage
50.21%
Number of
Institutional Buyers
(last 12 months)
44
Total
Institutional Inflows
(last 12 months)
$37.94M
Number of
Institutional Sellers
(last 12 months)
10
Total
Institutional Outflows
(last 12 months)
$7.83M
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ASYS Institutional Buying and Selling by Quarter

Amtech Systems Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
8/15/2026AWM Investment Company Inc.690,000$15.93M1.4%N/A3.941%
8/6/2026 Bank of New York Mellon Corp41,533$959K0.0%N/A0.285%
6/3/2026 NewEdge Advisors LLC26,891$314K0.0%+84.2%0.185%
5/19/2026Bank of America Corp DE22,652$265K0.0%+28,941.0%0.156%
5/18/2026Empowered Funds LLC32,318$377K0.0%+9.5%0.222%
5/15/2026 OMERS ADMINISTRATION Corp10,400$121K0.0%-37.3%0.072%
5/14/2026 Renaissance Technologies LLC108,096$1.26M0.0%-26.3%0.745%
5/14/2026 Arrowstreet Capital Limited Partnership365,387$4.27M0.0%+5.3%2.520%
5/14/2026Sei Investments Co.92,515$1.08M0.0%+104.5%0.638%
5/14/2026 Walleye Capital LLC12,197$142K0.0%N/A0.084%
5/14/2026 State of Wyoming23,688$277K0.0%N/A0.163%
5/7/2026 Dimensional Fund Advisors LP529,351$6.18M0.0%-21.2%3.675%
5/5/2026 Hillsdale Investment Management Inc.25,300$296K0.0%N/A0.176%
2/18/2026Empowered Funds LLC29,518$370K0.0%N/A0.205%
2/18/2026XTX Topco Ltd69,381$871K0.0%+568.1%0.481%
2/18/2026 Quadrature Capital Ltd30,542$383K0.0%N/A0.212%
2/18/2026 Occudo Quantitative Strategies LP21,293$267K0.0%N/A0.148%
2/18/2026Millennium Management LLC22,748$285K0.0%+90.4%0.158%
2/18/2026Bridgeway Capital Management LLC96,318$1.21M0.0%+48.6%0.668%
2/17/2026 Kovack Advisors Inc.22,000$276K0.0%-31.6%0.153%
2/17/2026Trexquant Investment LP89,365$1.12M0.0%N/A0.620%
2/17/2026 Jump Financial LLC30,300$380K0.0%N/A0.210%
2/17/2026Graham Capital Management L.P.12,608$158K0.0%N/A0.087%
2/16/2026Squarepoint Ops LLC16,677$209K0.0%N/A0.116%
2/16/2026 OMERS ADMINISTRATION Corp16,600$208K0.0%N/A0.115%
2/16/2026 WealthTrust Axiom LLC11,300$142K0.0%-68.4%0.078%
2/16/2026Barclays PLC12,698$159K0.0%+42,226.7%0.088%
2/13/2026 Kestra Advisory Services LLC7,050$88K0.0%N/A0.049%
2/13/2026 Marshall Wace LLP352,624$4.43M0.0%+235.0%2.447%
2/13/2026Hudson Bay Capital Management LP21,553$270K0.0%N/A0.150%
2/13/2026 State Street Corp62,790$788K0.0%+14.6%0.436%
2/12/2026Jane Street Group LLC325,754$4.09M0.0%+85.7%2.261%
2/12/2026 Renaissance Technologies LLC146,596$1.84M0.0%+622.1%1.017%
2/12/2026 Dimensional Fund Advisors LP672,107$8.44M0.0%-20.9%4.664%
2/12/2026 Informed Momentum Co LLC74,305$933K0.1%N/A0.516%
2/12/2026 Kovack Advisors Inc.22,000$268K0.0%-31.6%0.153%
2/11/2026Empowered Funds LLC29,518$370K0.0%N/A0.205%
2/11/2026 Janney Montgomery Scott LLC30,760$386K0.0%+15.2%0.214%
2/11/2026 O Shaughnessy Asset Management LLC60,963$765K0.0%N/A0.423%
2/10/2026Goldman Sachs Group Inc.78,693$988K0.0%+151.8%0.546%
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2/9/2026 Geode Capital Management LLC133,001$1.67M0.0%+1.3%0.923%
2/4/2026 Pacific Ridge Capital Partners LLC627,811$7.88M1.7%-2.9%4.360%
2/4/2026 First Eagle Investment Management LLC734,346$9.22M0.0%-2.4%5.100%
1/26/2026 Merit Financial Group LLC37,000$464K0.0%N/A0.258%
1/23/2026 Ritholtz Wealth Management39,572$497K0.0%N/A0.276%
1/21/2026 Sowell Financial Services LLC16,156$203K0.0%N/A0.113%
11/17/2025 NewEdge Advisors LLC14,600$135K0.0%N/A0.102%
11/17/2025Wexford Capital LP18,808$174K0.0%N/A0.131%
11/17/2025Millennium Management LLC11,946$111K0.0%N/A0.083%
11/17/2025Citadel Advisors LLC78,454$726K0.0%+39.6%0.548%
11/17/2025Brevan Howard Capital Management LP18,000$167K0.0%N/A0.126%
11/14/2025Ancora Advisors LLC35,247$326K0.0%-68.3%0.246%
11/14/2025EHP Funds Inc.25,242$234K0.2%N/A0.176%
11/13/2025 Arrowstreet Capital Limited Partnership182,429$1.69M0.0%N/A1.274%
11/12/2025 Dimensional Fund Advisors LP849,815$7.87M0.0%-6.6%5.937%
11/12/2025 First Eagle Investment Management LLC752,346$6.97M0.0%-6.0%5.256%
11/12/2025 Pacific Ridge Capital Partners LLC646,489$5.99M1.3%-2.2%4.516%
11/10/2025 Kovack Advisors Inc.32,150$298K0.0%-56.0%0.225%
11/7/2025 GSA Capital Partners LLP33,817$313K0.0%-23.9%0.236%
11/7/2025Vanguard Group Inc.676,006$6.26M0.0%+2.6%4.723%
11/6/2025 Essex Investment Management Co. LLC37,816$350K0.1%N/A0.264%
11/5/2025 Thompson Davis & CO. Inc.13,250$123K0.1%N/A0.093%
10/31/2025 James Investment Research Inc.14,600$135K0.0%N/A0.102%
10/30/2025 Williams & Novak LLC10,250$95K0.1%-44.2%0.072%
10/27/2025 GWN Securities Inc.20,423$189K0.0%N/A0.143%
8/12/2025XTX Topco Ltd23,606$105K0.0%N/A0.165%
8/6/2025 First Eagle Investment Management LLC800,382$3.55M0.0%-4.9%5.593%
8/4/2025 Kovack Advisors Inc.73,000$324K0.0%-3.2%0.510%
7/24/2025 Williams & Novak LLC18,385$82K0.1%+24.8%0.128%
6/27/2025Goldman Sachs Group Inc.30,066$145K0.0%+135.5%0.210%
5/21/2025Acadian Asset Management LLC42,584$204K0.0%+90.8%0.297%
5/16/2025Goldman Sachs Group Inc.30,066$145K0.0%+135.5%0.210%
5/9/2025Pacific Ridge Capital Partners LLC621,035$3M0.8%-4.8%4.346%
5/6/2025Royce & Associates LP587,986$2.84M0.0%-60.3%4.115%
5/6/2025Kovack Advisors Inc.75,400$364K0.0%+15.1%0.528%
5/5/2025AMH Equity Ltd97,583$471K0.7%+137.0%0.683%
4/17/2025Sowell Financial Services LLC32,883$159K0.0%N/A0.230%
2/17/2025Squarepoint Ops LLC13,005$71K0.0%N/A0.091%
2/17/2025Millennium Management LLC22,706$124K0.0%+82.7%0.159%
2/17/2025Bridgeway Capital Management LLC35,600$194K0.0%-4.8%0.249%
2/14/2025Northern Trust Corp44,816$244K0.0%+31.7%0.314%
2/14/2025Dimensional Fund Advisors LP931,198$5.08M0.0%+0.8%6.517%
2/13/2025Kennedy Capital Management LLC42,325$231K0.0%-56.0%0.296%
2/13/2025Renaissance Technologies LLC11,700$64K0.0%N/A0.082%
2/12/2025Geode Capital Management LLC132,756$724K0.0%+3.7%0.929%
2/12/2025Pacific Ridge Capital Partners LLC652,393$3.56M0.8%-1.3%4.565%
2/11/2025Hillsdale Investment Management Inc.37,200$203K0.0%N/A0.260%
2/10/2025Royce & Associates LP1,479,300$8.06M0.1%-13.6%10.352%
2/10/2025First Eagle Investment Management LLC834,922$4.55M0.0%+6.6%5.843%
2/5/2025Kovack Advisors Inc.65,500$357K0.0%+225.9%0.458%
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2/5/2025AMH Equity Ltd41,175$224K0.2%-83.5%0.288%
12/5/2024272 Capital LP12,352$72K0.0%N/A0.087%
11/16/2024Geode Capital Management LLC128,067$743K0.0%+6.1%0.901%
11/14/2024272 Capital LP12,352$72K0.1%N/A0.087%
11/6/2024Royce & Associates LP1,711,172$9.93M0.1%-1.5%12.034%
11/6/2024Kovack Advisors Inc.20,100$117K0.0%-26.9%0.141%
8/16/2024Pacific Ridge Capital Partners LLC709,665$4.16M1.0%-4.1%4.994%
8/12/2024First Eagle Investment Management LLC675,844$3.96M0.0%+13.0%4.756%
8/9/2024Dimensional Fund Advisors LP942,634$5.52M0.0%-7.6%6.634%
8/6/2024Acadian Asset Management LLC18,476$107K0.0%+19.3%0.130%


ASYS Institutional Ownership - Frequently Asked Questions

During the previous two years, 58 institutional investors and hedge funds held shares of Amtech Systems. The most heavily invested institutionals were AWM Investment Company Inc. ($15.93M), First Eagle Investment Management LLC ($9.22M), Pacific Ridge Capital Partners LLC ($7.88M), Vanguard Group Inc. ($6.26M), Dimensional Fund Advisors LP ($6.18M), Marshall Wace LLP ($4.43M), and Arrowstreet Capital Limited Partnership ($4.27M).Learn more on Amtech Systems' institutional investors.

50.21% of Amtech Systems' stock is owned by institutional investors. Learn more on ASYS's institutional investor holdings.

Of the 52 institutional investors that purchased Amtech Systems' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: AWM Investment Company Inc. ($690K), Marshall Wace LLP ($247.35K), Arrowstreet Capital Limited Partnership ($200.78K), Jane Street Group LLC ($150.33K), Renaissance Technologies LLC ($138.00K), Trexquant Investment LP ($89.37K), and XTX Topco Ltd ($82.60K).

Institutional investors have bought a total of 2,524,698 shares in the last 24 months. This purchase volume represents approximately $37.94M in transactions.

Of the 10 institutional investors that sold Amtech Systems' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Dimensional Fund Advisors LP ($380.22K), Ancora Advisors LLC ($75.78K), First Eagle Investment Management LLC ($66.04K), Kovack Advisors Inc. ($61.15K), Renaissance Technologies LLC ($38.50K), Pacific Ridge Capital Partners LLC ($33.56K), and WealthTrust Axiom LLC ($24.50K).

Institutional investors have sold a total of 704,669 shares in the last 24 months. This volume of shares sold represents approximately $7.83M in transactions.


Related Companies

Institutional ownership data for NASDAQ:ASYS is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 8/15/2026. New 13F filings are added each quarter as they're published.
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