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Disclosery

ASYS AMTECH SYS INC

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COMMON STOCK (common), issuer CIK 720500

109 managers (112 13F filers) reported a position in ASYS shares at 2026-06-30, 10,461,324 shares in all. 46 filers opened a position and 12 filers sold out during the quarter.

Managers
109
13F filers
112
New
46
Added
39
Reduced
20
Sold out
12
Shares held by filers
10,461,324

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
AIGH Capital Management LLC1,252,000$28.9M2.62%new13F-HRTimeline
First Eagle Investment Management, LLCin group First Eagle Investment Manage…848,426$19.6M0.03%+15,97313F-HR/ATimelineGroup
BlackRock, Inc.in group BlackRock, Inc.763,487$17.6M<0.01%+618,04113F-HRTimelineGroup
VANGUARD GROUP INCgroup of 4 filers holding747,940$17.3M+116,035Timeline
AWM Investment Company, Inc.690,000$15.9M1.38%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC580,278$13.4M0.02%+113,44113F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP426,694$9.84M<0.01%-102,65713F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP398,564$9.2M0.01%-18,51213F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …308,896$7.13M<0.01%-56,49113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC284,836$6.58M<0.01%+152,68713F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…282,388$6.52M0.01%+108,22913F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC260,605$6.01M0.01%+152,50913F-HRTimeline
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP254,367$5.87M<0.01%-12,48913F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC249,465$5.76M<0.01%-91,41413F-HRTimelineGroup
Regal Partners Ltdin group Regal Partners Ltd237,503$5.48M0.3%new13F-HRTimelineGroup
Qube Research & Technologies Ltd194,714$4.49M<0.01%+106,19713F-HRTimeline
STATE STREET CORPin group STATE STREET CORP155,849$3.6M<0.01%+98,50913F-HRTimelineGroup
Trexquant Investment LP119,750$2.76M0.02%-54,13913F-HRTimeline
BRIDGEWAY CAPITAL MANAGEMENT, LLC111,472$2.57M0.05%+2,35413F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC106,246$2.45M<0.01%-66813F-HRTimelineGroup
Palisades Investment Partners, LLC102,691$2.37M0.67%+2,03513F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP91,857$2.12M<0.01%+52,85313F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC90,626$2.09M<0.01%-362,97113F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY82,999$1.92M<0.01%+23,90713F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.79,684$1.84M<0.01%+49,92613F-HRTimelineGroup
UBS Group AGin group UBS Group AG79,085$1.83M<0.01%+6,61113F-HRTimelineGroup
Informed Momentum Co LLC72,579$1.68M0.15%-1,72613F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS71,293$1.65M<0.01%+7,75213F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd69,832$1.61M0.02%-4,77413F-HRTimelineGroup
LOS ANGELES CAPITAL MANAGEMENT LLC63,562$1.47M0.01%new13F-HRTimeline
O'SHAUGHNESSY ASSET MANAGEMENT, LLC54,829$1.27M0.01%+4,10213F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC54,066$1.25M<0.01%+17,49113F-HRTimelineGroup
Capelight Capital Asset Management LP50,000$1.15M0.58%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO49,501$1.14M<0.01%-43,01413F-HRTimelineGroup
Man Group plcin group Man Group plc45,224$1.04M<0.01%+13,55313F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND44,009$1.02M<0.01%+2,50013F-HRTimeline
Hillsdale Investment Management Inc.43,080$994K0.02%+17,78013F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…42,842$989K<0.01%-91,09613F-HRTimelineGroup
Bank of New York Mellon Corpin group Bank of New York Mellon Corp41,533$959K<0.01%new13F-HRTimelineGroup
RITHOLTZ WEALTH MANAGEMENT41,374$955K0.01%+1,25313F-HR/ATimeline
OCCUDO QUANTITATIVE STRATEGIES LP38,616$891K0.05%+18,78613F-HRTimeline
Engineers Gate Manager LP38,552$890K0.01%+97213F-HRTimeline
GSA CAPITAL PARTNERS LLP37,814$873K0.06%+12,18413F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC37,761$872K0.11%-5513F-HRTimeline
Merit Financial Group, LLC37,000$854K0.01%013F-HR/ATimeline
Empowered Funds, LLC34,672$800K<0.01%+2,35413F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC34,536$797K<0.01%+7,80013F-HRTimelineGroup
Janney Montgomery Scott LLC30,760$710K<0.01%013F-HRTimeline
Optimus Capital Advisors, LLC30,000$692K0.37%new13F-HRTimeline
Y-Intercept (Hong Kong) Ltd29,533$682K0.01%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co28,468$657K<0.01%new13F-HRTimelineGroup
WINTON GROUP Ltdin group WINTON GROUP Ltd28,350$654K0.02%new13F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC27,193$628K0.22%-513F-HRTimeline
Marex Group Ltdin group Marex Group Ltd26,118$603K<0.01%new13F-HRTimelineGroup
Panoramic Capital, LLC25,000$577K0.25%new13F-HRTimeline
SHIKIAR ASSET MANAGEMENT INC22,075$509K0.13%new13F-HRTimeline
Dynamic Technology Lab Private Ltd21,380$493K0.11%-6,76113F-HRTimeline
Nuveen, LLCin group TIAA20,681$477K<0.01%new13F-HRTimelineGroup
Sowell Financial Services LLC20,206$466K0.02%013F-HRTimeline
VILLERE ST DENIS J & CO LLC20,000$462K0.06%013F-HRTimeline
Schonfeld Strategic Advisors LLC18,976$438K<0.01%+17213F-HRTimeline
LPL Financial LLC18,026$416K<0.01%-98713F-HRTimeline
WealthTrust Axiom LLC17,800$411K0.09%+1,50013F-HRTimeline
KTF INVESTMENTS, LLC17,000$392K0.04%new13F-HRTimeline
NewEdge Advisors, LLC15,823$365K<0.01%-11,06813F-HRTimeline
Integrated Quantitative Investments LLC15,359$354K0.06%new13F-HRTimeline
De Lisle Partners LLP15,000$346K0.04%new13F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.14,600$337K0.03%013F-HRTimeline
STATE OF WISCONSIN INVESTMENT BOARD13,600$314K<0.01%new13F-HRTimeline
RHUMBLINE ADVISERS11,987$277K<0.01%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\11,647$269K<0.01%new13F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…11,481$265K0.1%+28113F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO12,038$248K<0.01%+11,78013F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN10,685$247K<0.01%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP10,557$244K<0.01%new13F-HRTimeline
State of Wyoming10,170$235K0.02%-13,51813F-HRTimeline
PRICE T ROWE ASSOCIATES INC /MD/9,747$225K<0.01%new13F-HRTimeline
Truvestments Capital LLC9,265$214K0.03%+27513F-HRTimeline
Invesco Ltd.in group Invesco Ltd.9,260$214K<0.01%new13F-HRTimelineGroup
Legato Capital Management LLC8,898$205K0.02%new13F-HRTimeline
STRS OHIO7,900$182K<0.01%new13F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…7,046$163K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC5,490$127K<0.01%new13F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…5,393$124K<0.01%new13F-HRTimelineGroup
ALLIANCEBERNSTEIN L.P.10,000$117K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.4,295$99.1K<0.01%+3,95713F-HRTimelineGroup
SIMPLEX TRADING, LLC4,230$97.6K<0.01%new13F-HRTimeline
GROUP ONE TRADING LLC4,170$96.2K<0.01%+85913F-HRTimeline
BARCLAYS PLCin group BARCLAYS PLC3,714$85.7K<0.01%-7,61013F-HRTimelineGroup
Police & Firemen's Retirement System of…3,455$79.7K<0.01%new13F-HRTimeline
Kemnay Advisory Services Inc.2,250$51.9K0.01%new13F-HRTimeline
Farther Finance Advisors, LLC1,700$39.2K<0.01%new13F-HRTimeline
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…1,176$27.1K<0.01%+93613F-HRTimelineGroup
Legal & General Group Plcin group Legal & General Group Plc1,136$26.2K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…1,063$24.5K<0.01%new13F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…632$14.6K<0.01%-1,30913F-HRTimelineGroup
Strengthening Families & Communities, L…490$11.3K<0.01%013F-HRTimeline
SBI Securities Co., Ltd.482$11.1K<0.01%+45213F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA365$8K<0.01%+17413F-HRTimelineGroup
Integrated Wealth Concepts LLC300$6.92K<0.01%new13F-HRTimeline
FMR LLCin group FMR LLC261$6.02K<0.01%+1913F-HRTimelineGroup
Arax Advisory Partners227$5.24K<0.01%new13F-HRTimeline
FIRST UNITED BANK & TRUST220$5.08K<0.01%new13F-HRTimeline
Parallel Advisors, LLC200$4.62K<0.01%new13F-HRTimeline
CALIFORNIA STATE TEACHERS RETIREMENT SY…161$3.72K<0.01%new13F-HR/ATimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP118$2.31K<0.01%new13F-HRTimelineGroup
Horrell Capital Management, Inc.25$1K<0.01%new13F-HRTimeline
Sterling Capital Management LLC41$946<0.01%new13F-HRTimeline
Caitong International Asset Management …4$92<0.01%new13F-HRTimeline