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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
Aviva
101
Aviva
United Kingdom
$239M
Citadel Advisors
102
Citadel Advisors
Florida
$238M
SEI Investments
103
SEI Investments
Pennsylvania
$238M
Los Angeles Capital Management
104
Los Angeles Capital Management
California
$238M
State Board of Administration of Florida Retirement System
105
State Board of Administration of Florida Retirement System
Florida
$236M
VARA
106
Value Aligned Research Advisors
New Jersey
$235M
DAM
107
Diamant Asset Management
Connecticut
$235M
WorldQuant Millennium Advisors
108
WorldQuant Millennium Advisors
New York
$234M
Corient Private Wealth
109
Corient Private Wealth
Florida
$234M
Connor, Clark & Lunn Investment Management (CC&L)
110
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$232M
SG Americas Securities
111
SG Americas Securities
New York
$232M
New York State Teachers Retirement System (NYSTRS)
112
New York State Teachers Retirement System (NYSTRS)
New York
$229M
HCL
113
Heard Capital LLC
Illinois
$229M
ECSS
114
Eurizon Capital SGR SpA
$229M
QCM
115
Quantinno Capital Management
New York
$227M
DB
116
Danske Bank
Denmark
$226M
Polen Capital Management
117
Polen Capital Management
Florida
$225M
Aberdeen Group
118
Aberdeen Group
United Kingdom
$221M
Korea Investment Corp
119
Korea Investment Corp
South Korea
$219M
Wealth Enhancement Advisory Services
120
Wealth Enhancement Advisory Services
Minnesota
$219M
RPI
121
Railway Pension Investments
United Kingdom
$210M
PPF
122
PFA Pension Forsikringsaktieselskab
$210M
Natixis Advisors
123
Natixis Advisors
Massachusetts
$208M
CBU
124
CIBC Bancorp USA
Illinois
$205M
WRCM
125
Whale Rock Capital Management
Massachusetts
$205M