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Lam Research

2,610 hedge funds and large institutions have $215B invested in Lam Research in 2026 Q1 according to their latest regulatory filings, with 394 funds opening new positions, 888 increasing their positions, 1,062 reducing their positions, and 105 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:

5% less call options, than puts

Call options by funds: $4.46B | Put options by funds: $4.68B

3.41% less ownership

Funds ownership: 84.35%80.94% (-3.4%)

16% less repeat investments, than reductions

Existing positions increased: 888 | Existing positions reduced: 1,062

Holders
2,610
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
139
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.46B
Puts
$4.68B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
TD Asset Management
51
TD Asset Management
Ontario, Canada
$653M
Royal Bank of Canada
52
Royal Bank of Canada
Ontario, Canada
$651M
Acadian Asset Management
53
Acadian Asset Management
Massachusetts
$639M
Allianz Asset Management
54
Allianz Asset Management
Germany
$632M
Pictet Asset Management
55
Pictet Asset Management
Switzerland
$620M
Envestnet Asset Management
56
Envestnet Asset Management
Illinois
$611M
Canada Pension Plan Investment Board
57
Canada Pension Plan Investment Board
Ontario, Canada
$608M
VGA
58
Vanguard Global Advisers
Pennsylvania
$586M
PNC Financial Services Group
59
PNC Financial Services Group
Pennsylvania
$564M
Capital Research Global Investors
60
Capital Research Global Investors
California
$556M
Focus Partners Wealth
61
Focus Partners Wealth
Massachusetts
$542M
National Bank of Canada
62
National Bank of Canada
Quebec, Canada
$529M
AllianceBernstein
63
AllianceBernstein
Tennessee
$508M
RhumbLine Advisers
64
RhumbLine Advisers
Massachusetts
$491M
BNP Paribas Financial Markets
65
BNP Paribas Financial Markets
France
$484M
OCMI
66
Oaktop Capital Management II
New Jersey
$481M
DZ Bank
67
DZ Bank
Germany
$479M
Bank Julius Baer & Co
68
Bank Julius Baer & Co
Switzerland
$466M
VAM
69
Vanguard Asset Management
$466M
VanEck Associates
70
VanEck Associates
New York
$463M
Russell Investments Group
71
Russell Investments Group
United Kingdom
$452M
Assenagon Asset Management
72
Assenagon Asset Management
Luxembourg
$452M
Robeco Institutional Asset Management
73
Robeco Institutional Asset Management
Netherlands
$440M
Bank of Montreal
74
Bank of Montreal
Ontario, Canada
$432M
ProShare Advisors
75
ProShare Advisors
Maryland
$419M