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Disclosery

ASYS AMTECH SYS INC

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COMMON STOCK (common), issuer CIK 720500

64 managers (65 13F filers) reported a position in ASYS shares at 2025-12-31, 6,148,706 shares in all. 23 filers opened a position and 11 filers sold out during the quarter.

Managers
64
13F filers
65
New
23
Added
23
Reduced
14
Sold out
11
Shares held by filers
6,148,706

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, Q4 2025

Filers in the available 13F reports with a share position at 2025-12-31, 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…734,346$9.22M0.02%-18,00013F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP672,107$8.44M<0.01%-177,70813F-HRTimelineGroup
VANGUARD GROUP INCin group VANGUARD GROUP INC631,905$7.93M<0.01%-44,10113F-HRTimelineGroup
Pacific Ridge Capital Partners, LLC627,811$7.88M1.73%-18,67813F-HRTimeline
MARSHALL WACE, LLPin group MARSHALL WACE, LLP352,624$4.43M<0.01%+247,35213F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …347,033$4.36M<0.01%+164,60413F-HRTimelineGroup
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC325,754$4.09M<0.01%+150,33213F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC236,008$2.96M<0.01%+152,47613F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPgroup of 2 filers holding181,434$2.28MnewTimeline
RENAISSANCE TECHNOLOGIES LLC146,596$1.84M<0.01%+126,29613F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.134,477$1.69M<0.01%+1,60413F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC133,001$1.67M<0.01%+1,72013F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC124,843$1.57M<0.01%+46,38913F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC96,318$1.21M0.03%+31,51813F-HRTimeline
Trexquant Investment LP89,365$1.12M0.01%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…80,630$1.01M<0.01%+60,69313F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC78,693$988K<0.01%+47,44213F-HR/ATimelineGroup
Informed Momentum Co LLC74,305$933K0.1%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd69,381$871K0.02%+58,99613F-HRTimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.68,154$855K<0.01%new13F-HRTimelineGroup
Connor, Clark & Lunn Investment Managem…66,877$839K<0.01%new13F-HRTimeline
STATE STREET CORPin group STATE STREET CORP62,790$788K<0.01%+8,00013F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC60,963$765K<0.01%new13F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO45,233$568K<0.01%new13F-HRTimelineGroup
Qube Research & Technologies Ltd41,978$527K<0.01%new13F-HRTimeline
RITHOLTZ WEALTH MANAGEMENT39,572$497K0.01%new13F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP39,177$492K<0.01%+2,47413F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC37,816$475K0.07%013F-HRTimeline
Merit Financial Group, LLC37,000$464K<0.01%new13F-HRTimeline
Janney Montgomery Scott LLC30,760$386K<0.01%+4,06013F-HRTimeline
GSA CAPITAL PARTNERS LLP30,748$386K0.03%-3,06913F-HRTimeline
Quadrature Capital Ltdin group Quadrature Capital Ltd30,542$383K<0.01%new13F-HRTimelineGroup
Jump Financial, LLCin group Jump Financial, LLC30,300$380K<0.01%new13F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC27,537$346K0.15%-5413F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS26,568$333K<0.01%new13F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC22,748$285K<0.01%+10,80213F-HRTimelineGroup
Kovack Advisors, Inc.22,000$276K0.01%-10,15013F-HR/ATimeline
Centiva Capital, LP21,815$274K0.02%new13F-HRTimeline
Hudson Bay Capital Management LPin group Hudson Bay Capital Management…21,553$270K<0.01%new13F-HRTimelineGroup
OCCUDO QUANTITATIVE STRATEGIES LP21,293$267K0.02%new13F-HRTimeline
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC20,666$259K<0.01%+10,04313F-HRTimelineGroup
VILLERE ST DENIS J & CO LLC20,000$251K0.03%013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC16,677$209K<0.01%new13F-HRTimelineGroup
OMERS ADMINISTRATION Corp16,600$208K<0.01%new13F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC16,247$204K<0.01%-19,00013F-HRTimelineGroup
Sowell Financial Services LLC16,156$203K0.01%new13F-HRTimeline
JAMES INVESTMENT RESEARCH, INC.14,600$183K0.02%013F-HRTimeline
NewEdge Advisors, LLC14,600$183K<0.01%013F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY13,211$166K<0.01%+5,47313F-HR/ATimelineGroup
BARCLAYS PLCin group BARCLAYS PLC12,698$159K<0.01%+12,66813F-HRTimelineGroup
Graham Capital Management, L.P.12,608$158K0.01%new13F-HRTimeline
LPL Financial LLC11,993$151K<0.01%-82213F-HRTimeline
WealthTrust Axiom LLC11,300$142K0.04%-24,50013F-HRTimeline
UBS Group AGin group UBS Group AG9,810$123K<0.01%+7,78013F-HRTimelineGroup
GROUP ONE TRADING LLC7,549$94.7K<0.01%+5,52513F-HRTimeline
Kestra Advisory Services, LLCin group Kestra Advisory Services, LLC7,050$88.5K<0.01%new13F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC2,388$30K<0.01%+2,38713F-HRTimelineGroup
SIMPLEX TRADING, LLC681$8.55K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.645$8.09K<0.01%-13513F-HRTimelineGroup
Strengthening Families & Communities, L…490$6.15K<0.01%013F-HRTimeline
FMR LLCin group FMR LLC428$5.37K<0.01%-23713F-HRTimelineGroup
SBI Securities Co., Ltd.130$1.63K<0.01%-2113F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA46$1K<0.01%+1013F-HRTimelineGroup
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/78$979<0.01%-1,60813F-HRTimelineGroup

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