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Disclosery

ASYS AMTECH SYS INC

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COMMON STOCK (common), issuer CIK 720500

77 managers (79 13F filers) reported a position in ASYS shares at 2026-03-31, 7,472,025 shares in all. 20 filers opened a position and 8 filers sold out during the quarter.

Managers
77
13F filers
79
New
20
Added
28
Reduced
21
Sold out
8
Shares held by filers
7,472,025

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

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
First Eagle Investment Management, LLCin group First Eagle Investment Manage…832,453$9.72M0.02%+98,10713F-HR/ATimelineGroup
VANGUARD GROUP INCgroup of 3 filers holding631,905$7.38MnewTimeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP529,351$6.18M<0.01%-142,75613F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC466,837$5.45M0.01%+230,82913F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC453,597$5.3M<0.01%+430,84913F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP417,076$4.87M0.01%+64,45213F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC405,371$4.73M1.03%-222,44013F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …365,387$4.27M<0.01%+18,35413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC340,879$3.98M<0.01%+15,12513F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP266,856$3.12M<0.01%+155,41913F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…174,159$2.03M<0.01%+107,28213F-HRTimeline
Trexquant Investment LP173,889$2.03M0.01%+84,52413F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.145,446$1.7M<0.01%+10,96913F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…133,938$1.56M<0.01%+53,30813F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC132,149$1.54M<0.01%-85213F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC109,118$1.27M0.03%+12,80013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC108,096$1.26M<0.01%-38,50013F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC106,914$1.25M<0.01%-17,92913F-HRTimelineGroup
Palisades Investment Partners, LLC100,656$1.18M0.46%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO92,515$1.08M<0.01%+47,28213F-HRTimelineGroup
Qube Research & Technologies Ltd88,517$1.03M<0.01%+46,53913F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd74,606$871K0.02%+5,22513F-HRTimelineGroup
Informed Momentum Co LLC74,305$868K0.1%013F-HRTimeline
UBS Group AGin group UBS Group AG72,474$846K<0.01%+62,66413F-HRTimelineGroup
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS63,541$742K<0.01%+36,97313F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY59,092$690K<0.01%+45,88113F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP57,340$670K<0.01%-5,45013F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC50,727$592K<0.01%-10,23613F-HRTimeline
NEW YORK STATE COMMON RETIREMENT FUND41,509$485K<0.01%new13F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT40,121$469K0.01%+54913F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP39,004$456K<0.01%-17313F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC38,690$452K<0.01%+22,01313F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC37,816$442K0.07%013F-HRTimeline
Engineers Gate Manager LP37,580$439K0.01%new13F-HRTimeline
Merit Financial Group, LLC37,000$432K<0.01%013F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC36,575$427K<0.01%-42,11813F-HRTimelineGroup
Empowered Funds, LLC32,318$377K<0.01%new13F-HR/ATimeline
Man Group plcin group Man Group plc31,671$370K<0.01%new13F-HRTimelineGroup
Janney Montgomery Scott LLC30,760$359K<0.01%013F-HRTimeline
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.29,758$348K<0.01%-38,39613F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP19,830$345K0.02%-1,46313F-HRTimeline
Dynamic Technology Lab Private Ltd28,141$329K0.05%new13F-HRTimeline
IRONWOOD INVESTMENT MANAGEMENT LLC27,198$318K0.13%-33913F-HRTimeline
NewEdge Advisors, LLC26,891$314K<0.01%+12,29113F-HR/ATimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC26,736$312K<0.01%+6,07013F-HRTimelineGroup
GSA CAPITAL PARTNERS LLP25,630$299K0.02%-5,11813F-HRTimeline
Hillsdale Investment Management Inc.25,300$296K0.01%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…24,083$281K<0.01%+2,53013F-HRTimelineGroup
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…23,714$277K<0.01%new13F-HRTimelineGroup
State of Wyoming23,688$277K0.03%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/22,652$265K<0.01%+22,57413F-HRTimelineGroup
Virtu Financial LLCin group Virtu Financial LLC21,210$248K0.01%new13F-HRTimelineGroup
Sowell Financial Services LLC20,206$236K0.01%+4,05013F-HRTimeline
HRT FINANCIAL LP20,181$235K<0.01%new13F-HRTimeline
VILLERE ST DENIS J & CO LLC20,000$234K0.03%013F-HRTimeline
LPL Financial LLC19,013$222K<0.01%+7,02013F-HRTimeline
Schonfeld Strategic Advisors LLC18,804$220K<0.01%new13F-HRTimeline
WealthTrust Axiom LLC16,300$190K0.05%+5,00013F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.14,600$171K0.02%013F-HRTimeline
Jump Financial, LLCin group Jump Financial, LLC13,280$155K<0.01%-17,02013F-HRTimelineGroup
Kovack Advisors, Inc.12,100$145K0.01%-9,90013F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC12,197$142K<0.01%new13F-HR/ATimelineGroup
BARCLAYS PLCin group BARCLAYS PLC11,324$132K<0.01%-1,37413F-HRTimelineGroup
VIRTUS ADVISERS, LLCin group Virtus Investment Advisers, L…11,200$131K0.06%new13F-HRTimelineGroup
OMERS ADMINISTRATION Corp10,400$121K<0.01%-6,20013F-HRTimeline
Truvestments Capital LLC8,990$105K0.02%new13F-HRTimeline
GROUP ONE TRADING LLC3,311$38.7K<0.01%-4,23813F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…1,941$22.7K<0.01%new13F-HRTimelineGroup
IFP Advisors, Inc1,019$11.9K<0.01%new13F-HRTimeline
Strengthening Families & Communities, L…490$5.72K<0.01%013F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.338$3.95K<0.01%-30713F-HRTimelineGroup
CWM, LLCin group CWM, LLC301$3.52K<0.01%new13F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO258$2.86K<0.01%new13F-HR/ATimelineGroup
FMR LLCin group FMR LLC242$2.83K<0.01%-18613F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…240$2.8K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA191$2K<0.01%+14513F-HRTimelineGroup
SBI Securities Co., Ltd.30$350<0.01%-10013F-HRTimeline

Events

  • WASATCH ADVISORS LP reported 1,184,904 ASYS shares, 6.8% of the class, as of 2026-09-30, in a 13G filed 2026-10-09. 0000814133-26-000112

    Accepted , ingested