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Lam Research

1,775 hedge funds and large institutions have $74.2B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 270 funds opening new positions, 727 increasing their positions, 541 reducing their positions, and 138 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 repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding

Funds holding:

4% more call options, than puts

Call options by funds: $1.79B | Put options by funds: $1.72B

0.45% less ownership

Funds ownership: 80.1%79.65% (-0.45%)

0% less capital invested

Capital invested by funds: $74.6B → $74.2B (-$361M)

Holders
1,775
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
31
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.79B
Puts
$1.72B
Net Calls
Net Calls Change

Top Buyers

1 +$608M
2 +$587M
3 +$562M
4
Coatue Management
Coatue Management
New York
+$303M
5
Citadel Advisors
Citadel Advisors
Florida
+$257M

Top Sellers

1 -$1.28B
2 -$468M
3 -$271M
4
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$260M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$234M
Name Holding Trade Value Shares
Change
Change in
Stake
Aberdeen Group
126
Aberdeen Group
United Kingdom
$67.9M
NC
127
NZS Capital
Colorado
$67.7M
Fisher Asset Management
128
Fisher Asset Management
Washington
$66.8M
CVA
129
Ceredex Value Advisors
Florida
$66.4M
AQR Capital Management
130
AQR Capital Management
Connecticut
$64.5M
WorldQuant Millennium Advisors
131
WorldQuant Millennium Advisors
New York
$63.6M
GT
132
Glenmede Trust
Pennsylvania
$63.5M
SSA
133
Schonfeld Strategic Advisors
New York
$63.3M
Mitsubishi UFJ Trust & Banking
134
Mitsubishi UFJ Trust & Banking
Japan
$63.2M
Assenagon Asset Management
135
Assenagon Asset Management
Luxembourg
$63.1M
State of Wisconsin Investment Board
136
State of Wisconsin Investment Board
Wisconsin
$61.9M
Marshall Wace
137
Marshall Wace
United Kingdom
$61.5M
Jennison Associates
138
Jennison Associates
New York
$61.4M
AIM
139
Achmea Investment Management
Netherlands
$61.4M
Public Sector Pension Investment Board (PSP Investments)
140
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$61.2M
CS
141
Candriam SCA
Luxembourg
$60.6M
PAM
142
Panagora Asset Management
Massachusetts
$59.7M
KBC Group
143
KBC Group
Belgium
$58.2M
GC
144
Guggenheim Capital
Illinois
$58.2M
ClearBridge Investments
145
ClearBridge Investments
New York
$56.2M
Parnassus Investments
146
Parnassus Investments
California
$56.2M
Los Angeles Capital Management
147
Los Angeles Capital Management
California
$54M
EAM
148
Eventide Asset Management
Massachusetts
$53.6M
Westfield Capital Management
149
Westfield Capital Management
Massachusetts
$53.5M
Royal London Asset Management
150
Royal London Asset Management
United Kingdom
$53.4M