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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
PWMAG
726
Pinnacle Wealth Management Advisory Group
New Jersey
$1.9M
KPWS
727
Kestra Private Wealth Services
Texas
$1.89M
BCIM
728
Black Creek Investment Management
Ontario, Canada
$1.87M
TCOO
729
Trust Company of Oklahoma
Oklahoma
$1.87M
YC
730
Yarbrough Capital
Tennessee
$1.87M
PA
731
Perennial Advisors
New York
$1.87M
OGC
732
Oak Grove Capital
New Hampshire
$1.87M
VI
733
Vestcor Inc
New Brunswick, Canada
$1.86M
MYAM
734
Meiji Yasuda Asset Management
Japan
$1.85M
MFG
735
Merit Financial Group
Georgia
$1.85M
CCG
736
Cypress Capital Group
Florida
$1.85M
AFM
737
Aspetuck Financial Management
Connecticut
$1.84M
RWM
738
Ritholtz Wealth Management
New York
$1.84M
QI
739
Qtron Investments
Massachusetts
$1.84M
GMFG
740
Greater Midwest Financial Group
Minnesota
$1.82M
NIM
741
Needham Investment Management
New York
$1.82M
KI
742
Keystone Investors
Singapore
$1.8M
WB
743
Webster Bank
Connecticut
$1.79M
OA
744
Oak Associates
Ohio
$1.79M
VI
745
Versor Investments
New York
$1.79M
1WA
746
180 Wealth Advisors
Washington
$1.78M
LIM
747
Leavell Investment Management
Alabama
$1.77M
CWM
748
Calamos Wealth Management
Illinois
$1.76M
PS
749
Pensionfund Sabic
Netherlands
$1.76M
AA
750
Altman Advisors
Illinois
$1.76M