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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
SA
901
SoundView Advisors
Washington
$1.07M
HIIFS
902
Harel Insurance Investments & Financial Services
Israel
$1.06M
JSL
903
JT Stratford LLC
Georgia
$1.06M
RIA
904
Regal Investment Advisors
Michigan
$1.05M
CAMV
905
Concord Asset Management (Virginia)
Virginia
$1.05M
IMC Chicago
906
IMC Chicago
Illinois
$1.05M
WG
907
Winton Group
United Kingdom
$1.05M
DTL
908
Dynamic Technology Lab
Singapore
$1.05M
FRM
909
Fox Run Management
Connecticut
$1.04M
APWM
910
Argonautica Private Wealth Management
Massachusetts
$1.04M
WA
911
Wealth Alliance
New York
$1.04M
GS
912
GTS Securities
New York
$1.04M
DAS
913
Dynamic Advisor Solutions
Arizona
$1.04M
PIM
914
Penobscot Investment Management
Massachusetts
$1.04M
FCFC
915
First Commonwealth Financial Corp
Pennsylvania
$1.04M
FB
916
Fulton Bank
Pennsylvania
$1.04M
CA
917
Clearstead Advisors
Ohio
$1.04M
RCA
918
Roberts Capital Advisors
Colorado
$1.03M
NL
919
NVWM LLC
Pennsylvania
$1.03M
MTC
920
McDaniel Terry & Co
Texas
$1.03M
FM
921
Foster & Motley
Ohio
$1.02M
FPAS
922
Focus Partners Advisor Solutions
Missouri
$1.02M
OIA
923
OneDigital Investment Advisors
Kansas
$1M
JCM
924
Jacobi Capital Management
Pennsylvania
$997K
AFS
925
Access Financial Services
Minnesota
$991K