AMTECH SYSTEMS INC (ASYS) Institutional Ownership Changes & 13F Activity

AMTECH SYSTEMS INC (ASYS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Awm Investment Company, Inc., Millennium Management Llc, Regal Partners Ltd, Qube Research & Technologies Ltd, and Jane Street Group, Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Citadel Advisors LlcSell-668-0.6%106,246$2.45MQ2 2026Sep 02, 2026
First Eagle U.S. ValueBuy+15,973+1.9%848,426$19.58MQ2 2026Aug 24, 2026
California State Teachers Retirement SystemBuy+161161$3.72KQ2 2026Aug 24, 2026
Empowered Funds, LlcBuy+2,354+7.3%34,672$800.23KQ2 2026Aug 17, 2026
Awm Investment Company, Inc.Buy+690,000690,000$15.93MQ2 2026Aug 14, 2026
Millennium Management LlcSell-362,971-80.0%90,626$2.09MQ2 2026Aug 14, 2026
Regal Partners LtdBuy+237,503237,503$5.48MQ2 2026Aug 14, 2026
Qube Research & Technologies LtdBuy+106,197+120.0%194,714$4.49MQ2 2026Aug 14, 2026
Jane Street Group, LlcSell-91,414-26.8%249,465$5.76MQ2 2026Aug 14, 2026
Susquehanna International Group, LlpSell-91,096-68.0%42,842$988.79KQ2 2026Aug 14, 2026
Trexquant Investment LpSell-54,139-31.1%119,750$2.76MQ2 2026Aug 14, 2026
Point72 Asset Management, L.P.Buy+49,926+167.8%79,684$1.84MQ2 2026Aug 14, 2026
Sei Investments CoSell-43,014-46.5%49,501$1.14MQ2 2026Aug 14, 2026
Charles Schwab Investment Management IncBuy+28,46828,468$657.04KQ2 2026Aug 14, 2026
Marex Group PlcBuy+26,11826,118$602.80KQ2 2026Aug 14, 2026
Panoramic Capital, LlcBuy+25,00025,000$577.00KQ2 2026Aug 14, 2026
Goldman Sachs Group IncBuy+17,491+47.8%54,066$1.25MQ2 2026Aug 14, 2026
Integrated Quantitative Investments LlcBuy+15,35915,359$354.49KQ2 2026Aug 14, 2026
State Of Wisconsin Investment BoardBuy+13,60013,600$313.89KQ2 2026Aug 14, 2026
Man Group PlcBuy+13,553+42.8%45,224$1.04MQ2 2026Aug 14, 2026
Two Sigma Investments, LpSell-12,489-4.7%254,367$5.87MQ2 2026Aug 14, 2026
Wells Fargo & Company/MnBuy+10,68510,685$246.61KQ2 2026Aug 14, 2026
Exoduspoint Capital Management, LpBuy+10,55710,557$243.66KQ2 2026Aug 14, 2026
Alliancebernstein L.P.Buy+10,00010,000$116.80KQ2 2026Aug 14, 2026
Price T Rowe Associates IncBuy+9,7479,747$225.00KQ2 2026Aug 14, 2026
Invesco Ltd.Buy+9,2609,260$213.72KQ2 2026Aug 14, 2026
Barclays PlcSell-7,610-67.2%3,714$85.72KQ2 2026Aug 14, 2026
Metlife Investment Management, LlcBuy+7,0467,046$162.62KQ2 2026Aug 14, 2026
Mirae Asset Global Etfs Holdings Ltd.Buy+5,3935,393$124.47KQ2 2026Aug 14, 2026
Xtx Topco LtdSell-4,774-6.4%69,832$1.61MQ2 2026Aug 14, 2026
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Frequently asked questions about ASYS activity

  • Which institutional owners are buying ASYS?

    Institutional owners buying ASYS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in ASYS activity?

    "Buy" means an investor increased their reported position in ASYS compared to the prior reporting period. This reflects growing exposure to AMTECH SYSTEMS INC (ASYS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in ASYS increasing?

    Institutional interest in ASYS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.