13F

Stock

Amtech Sys Inc

Ticker not mapped · held by 79 managers

Reported value

$80.5M

Holders

79

+20 new · −8 exited

Holders’ est. mark

−$3.94M

Price effect on 56 books still in the name

Largest holder

$9.72M

First Eagle Investment Management, LLC

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
First Eagle Investment Management, LLC832.5K$9.72M−$638.9KAdded$507K
VANGUARD CAPITAL MANAGEMENT LLC564.3K$6.59MHeld
DIMENSIONAL FUND ADVISORS LP529.4K$6.18M−$461.9KCut−$2.25M
MILLENNIUM MANAGEMENT LLC453.6K$5.3M−$19.8KAdded$5.01M
MARSHALL WACE, LLP417.1K$4.87M−$306.8KAdded$446K
Pacific Ridge Capital Partners, LLC405.4K$4.73M−$352.7KCut−$3.14M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP365.4K$4.27M−$301.9KCut−$87.5K
JANE STREET GROUP, LLC340.9K$3.98M−$283.4KCut−$106.7K
TWO SIGMA INVESTMENTS, LP266.9K$3.12M−$96.9KAdded$1.72M
Connor, Clark & Lunn Investment Management Ltd.174.2K$2.03M−$58.2KAdded$1.19M
Trexquant Investment LP173.9K$2.03M−$77.7KAdded$909.5K
BlackRock, Inc.145.4K$1.7M−$117KAdded$11.1K
SUSQUEHANNA INTERNATIONAL GROUP, LLP133.9K$1.56M−$70.1KAdded$552.5K
GEODE CAPITAL MANAGEMENT, LLC132.1K$1.54M−$115KCut−$125.7K
BRIDGEWAY CAPITAL MANAGEMENT, LLC109.1K$1.27M−$83.8KAdded$65.7K
Renaissance Technologies108.1K$1.26M−$94KCut−$577.2K
Citadel106.9K$1.25M−$93KCut−$318K
Palisades Investment Partners, LLC100.7K$1.18MNew
SEI INVESTMENTS CO92.5K$1.08M−$39.4KAdded$512.9K
Qube Research & Technologies Ltd88.5K$1.03M−$36.5KAdded$507.1K
XTX Topco Ltd74.6K$871.4K−$60.4KAdded$666
Informed Momentum Co LLC74.3K$867.9K−$64.6KCut−$64.6K
UBS Group AG72.5K$846.5K−$8.53KAdded$723.4K
BNP PARIBAS FINANCIAL MARKETS63.5K$742.2K−$23.1KAdded$408.7K
VANGUARD FIDUCIARY TRUST CO63.3K$739.3KHeld
MORGAN STANLEY59.1K$690.2K−$11.5KAdded$524.4K
State Street57.3K$669.7K−$49.9KCut−$118.3K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC50.7K$592.5K−$44.1KCut−$172.6K
NEW YORK STATE COMMON RETIREMENT FUND41.5K$484.8KNew
RITHOLTZ WEALTH MANAGEMENT40.1K$468.6K−$34.4KCut−$28K
NORTHERN TRUST CORP39K$455.6K−$33.9KCut−$36.1K
Squarepoint Ops LLC38.7K$451.9K−$14.5KAdded$242.6K
ESSEX INVESTMENT MANAGEMENT CO LLC37.8K$441.7K−$32.9KCut−$32.9K
Engineers Gate Manager LP37.6K$438.9KNew
Merit Financial Group, LLC37K$432.2K−$32.2KCut−$32.2K
GOLDMAN SACHS GROUP INC36.6K$427.2K−$31.8KCut−$560.4K
Empowered Funds, LLC32.3K$377.5KNew
Man Group plc31.7K$369.9KNew
Point72 Asset Management, L.P.29.8K$347.6K−$25.9KCut−$507.8K
OCCUDO QUANTITATIVE STRATEGIES LP19.8K$345.2K$96.4KAdded$78K
Dynamic Technology Lab Private Ltd28.1K$328.7KNew
IRONWOOD INVESTMENT MANAGEMENT LLC27.2K$317.7K−$23.7KCut−$27.9K
AMERICAN CENTURY COMPANIES INC26.7K$312.3K−$18KAdded$52.9K
Hillsdale Investment Management Inc.25.3K$295.5KNew
Hudson Bay Capital Management LP24.1K$281.3K−$18.8KAdded$10.8K
Brevan Howard Capital Management LP23.7K$277KNew
State of Wyoming23.7K$276.7KNew
BANK OF AMERICA CORP /DE/22.7K$264.6K−$68Added$263.6K
Sowell Financial Services LLC20.2K$236K−$14.1KAdded$33.2K
VILLERE ST DENIS J & CO LLC20K$233.6K−$17.4KCut−$17.4K
LPL Financial LLC19K$222.1K−$10.4KAdded$71.6K
Schonfeld Strategic Advisors LLC18.8K$219.6KNew
WealthTrust Axiom LLC16.3K$190.4K−$9.83KAdded$48.6K
JAMES INVESTMENT RESEARCH, INC.14.6K$170.5K−$12.7KCut−$12.7K
Jump Financial, LLC13.3K$155.1K−$11.6KCut−$225.2K
Kovack Advisors, Inc.12.1K$144.6K−$7.26KCut−$131.5K
Walleye Capital LLC12.2K$142.5KNew
BARCLAYS PLC11.3K$132.3K−$9.85KCut−$27.1K
VIRTUS ADVISERS, LLC11.2K$130.8KNew
OMERS ADMINISTRATION Corp10.4K$121.5K−$9.05KCut−$86.9K
Truvestments Capital LLC8.99K$105KNew
NewEdge Advisors, LLC24.5K$52.3K−$152.1KCut−$131K
Vanguard Global Advisers, LLC4.28K$50KHeld
GROUP ONE TRADING LLC3.31K$38.7K−$2.88KCut−$56.1K
Tower Research Capital LLC (TRC)1.94K$22.7KNew
IFP Advisors, Inc1.02K$11.9KNew
Strengthening Families & Communities, LLC490$5.72K−$427Cut−$427
ACADIAN ASSET MANAGEMENT LLC466.8K$5.45K−$205Added$2.49K
OSAIC HOLDINGS, INC.338$3.95K−$295Cut−$4.15K
CWM, LLC301$3.52KNew
JPMORGAN CHASE & CO258$2.86KNew
Fidelity242$2.83K−$206Cut−$2.54K
Russell Investments Group, Ltd.240$2.8KNew
ROYAL BANK OF CANADA191$2K−$518Added$1K
Janney Montgomery Scott LLC30.8K$359−$27Cut−$27
SBI Securities Co., Ltd.30$350−$27Cut−$1.28K
GSA CAPITAL PARTNERS LLP25.6K$299−$23Cut−$87
Virtu Financial LLC21.2K$248New
HRT FINANCIAL LP20.2K$235New

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.