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Lam Research

1,852 hedge funds and large institutions have $102B invested in Lam Research in 2025 Q2 according to their latest regulatory filings, with 244 funds opening new positions, 734 increasing their positions, 657 reducing their positions, and 133 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

4% more funds holding

Funds holding: 1,7741,852 (+78)

2.52% more ownership

Funds ownership: 79.65%82.17% (+2.5%)

8% less call options, than puts

Call options by funds: $2.1B | Put options by funds: $2.28B

Holders
1,852
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
47
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.1B
Puts
$2.28B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
Universal-Beteiligungs- und Servicegesellschaft
76
Universal-Beteiligungs- und Servicegesellschaft
Germany
$188M
William Blair Investment Management
77
William Blair Investment Management
Illinois
$186M
Victory Capital Management
78
Victory Capital Management
Texas
$184M
BNP Paribas Asset Management
79
BNP Paribas Asset Management
France
$183M
BWC
80
Blue Whale Capital
United Kingdom
$183M
Neuberger Berman Group
81
Neuberger Berman Group
New York
$181M
Robeco Institutional Asset Management
82
Robeco Institutional Asset Management
Netherlands
$180M
MGP
83
M&G plc
United Kingdom
$178M
Corient Private Wealth
84
Corient Private Wealth
Florida
$178M
HCL
85
Heard Capital LLC
Illinois
$171M
Mackenzie Financial
86
Mackenzie Financial
Ontario, Canada
$169M
Lord, Abbett & Co
87
Lord, Abbett & Co
New Jersey
$169M
Russell Investments Group
88
Russell Investments Group
United Kingdom
$166M
BA
89
Bridgewater Associates
Connecticut
$160M
New York State Common Retirement Fund
90
New York State Common Retirement Fund
New York
$157M
Acadian Asset Management
91
Acadian Asset Management
Massachusetts
$155M
Marshall Wace
92
Marshall Wace
United Kingdom
$146M
AQR Capital Management
93
AQR Capital Management
Connecticut
$144M
EAM
94
Erste Asset Management
Austria
$140M
Adage Capital Partners
95
Adage Capital Partners
Massachusetts
$137M
Bank of Montreal
96
Bank of Montreal
Ontario, Canada
$136M
PCH
97
Polar Capital Holdings
United Kingdom
$135M
Prudential Financial
98
Prudential Financial
New Jersey
$133M
Manulife (Manufacturers Life Insurance)
99
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$132M
LPL Financial
100
LPL Financial
California
$127M