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Lam Research

2,333 hedge funds and large institutions have $182B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 419 funds opening new positions, 760 increasing their positions, 888 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:

3.14% more ownership

Funds ownership: 80.68%83.83% (+3.1%)

14% less repeat investments, than reductions

Existing positions increased: 760 | Existing positions reduced: 888

29% less call options, than puts

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

Holders
2,333
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
BNP Paribas Asset Management
51
BNP Paribas Asset Management
France
$555M
Mitsubishi UFJ Asset Management
52
Mitsubishi UFJ Asset Management
Japan
$554M
AllianceBernstein
53
AllianceBernstein
Tennessee
$548M
Citigroup
54
Citigroup
New York
$523M
BA
55
Bridgewater Associates
Connecticut
$521M
PCH
56
Polar Capital Holdings
United Kingdom
$492M
Canada Pension Plan Investment Board
57
Canada Pension Plan Investment Board
Ontario, Canada
$480M
PNC Financial Services Group
58
PNC Financial Services Group
Pennsylvania
$478M
VanEck Associates
59
VanEck Associates
New York
$466M
Rafferty Asset Management
60
Rafferty Asset Management
New York
$454M
Capital Research Global Investors
61
Capital Research Global Investors
California
$452M
American Century Companies
62
American Century Companies
Missouri
$436M
CI
63
Cincinnati Insurance
Ohio
$427M
Caisse de Depot et Placement du Quebec (CDPQ)
64
Caisse de Depot et Placement du Quebec (CDPQ)
Quebec, Canada
$424M
ProShare Advisors
65
ProShare Advisors
Maryland
$420M
OCMI
66
Oaktop Capital Management II
New Jersey
$409M
Corient Private Wealth
67
Corient Private Wealth
Florida
$405M
RhumbLine Advisers
68
RhumbLine Advisers
Massachusetts
$404M
Wealth Enhancement Advisory Services
69
Wealth Enhancement Advisory Services
Minnesota
$401M
National Bank of Canada
70
National Bank of Canada
Quebec, Canada
$372M
Robeco Institutional Asset Management
71
Robeco Institutional Asset Management
Netherlands
$370M
Acadian Asset Management
72
Acadian Asset Management
Massachusetts
$362M
DZ Bank
73
DZ Bank
Germany
$344M
Focus Partners Wealth
74
Focus Partners Wealth
Massachusetts
$343M
Russell Investments Group
75
Russell Investments Group
United Kingdom
$339M