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Lam Research

2,350 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 430 funds opening new positions, 763 increasing their positions, 890 reducing their positions, and 122 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

3.54% more ownership

Funds ownership: 80.68%84.23% (+3.5%)

14% less repeat investments, than reductions

Existing positions increased: 763 | Existing positions reduced: 890

29% less call options, than puts

Call options by funds: $4.3B | Put options by funds: $6.04B

Holders
2,350
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
113
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.3B
Puts
$6.04B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
RBFC
1601
Roman Butler Fullerton & Co
Missouri
$507K
MBWA
1602
Marin Bay Wealth Advisors
California
$507K
WWM
1603
Western Wealth Management
Colorado
$505K
CNBT
1604
Canandaigua National Bank & Trust
New York
$505K
CMBA
1605
C.M. Bidwell & Associates
Hawaii
$505K
CCP
1606
Cane Capital Partners
Louisiana
$503K
CLIP
1607
Colter Lewis Investment Partners
Connecticut
$503K
BWM
1608
Brickley Wealth Management
California
$501K
BFA
1609
Bill Few Associates
Pennsylvania
$498K
PAG
1610
Poinciana Advisors Group
Florida
$498K
BCA
1611
Bay Colony Advisors
Massachusetts
$497K
APW
1612
Aventura Private Wealth
Florida
$497K
MAGL
1613
Meadowbrook Advisors Group, LLC
New Jersey
$496K
NCM
1614
Nelson Capital Management
California
$494K
MBI
1615
May Barnhard Investments
Maryland
$493K
GSWM
1616
Golden State Wealth Management
California
$492K
QFA
1617
Quantum Financial Advisors
California
$491K
PWM
1618
Pines Wealth Management
North Carolina
$491K
DLA
1619
Douglas Lane & Associates
New York
$491K
AA
1620
Addison Advisors
Vermont
$490K
RC
1621
Roundview Capital
New Jersey
$489K
SIA
1622
SGL Investment Advisors
Montana
$488K
MIC
1623
Meridian Investment Counsel
California
$488K
CAM
1624
Cypress Asset Management
Texas
$488K
GS
1625
GWN Securities
Florida
$488K