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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
CSA
751
Cornerstone Select Advisors
Missouri
$1.75M
CSP
752
Cary Street Partners
Virginia
$1.74M
Wolverine Trading
753
Wolverine Trading
Illinois
$1.72M
MAM
754
Morse Asset Management
Connecticut
$1.71M
MFS
755
Mattson Financial Services
Michigan
$1.71M
HT
756
Heritage Trust
Oklahoma
$1.71M
IWM
757
IHT Wealth Management
Illinois
$1.71M
MHIC
758
Marble Harbor Investment Counsel
Massachusetts
$1.7M
IWA
759
Invera Wealth Advisors
Oregon
$1.7M
DT
760
Diversified Trust
Tennessee
$1.7M
WAM
761
Wolverine Asset Management
Illinois
$1.7M
EHWM
762
Eads & Heald Wealth Management
Georgia
$1.7M
NWM
763
NRI Wealth Management
California
$1.69M
MAM
764
MWA Asset Management
Massachusetts
$1.69M
C
765
Certuity
Florida
$1.68M
CRI
766
Commonwealth Retirement Investments
Virginia
$1.66M
MFG
767
Magnus Financial Group
New York
$1.65M
OC
768
Oppenheimer & Co
New York
$1.65M
RCA
769
Runnymede Capital Advisors
Ohio
$1.65M
MSA
770
MUFG Securities Americas
New York
$1.65M
JF
771
Jump Financial
Illinois
$1.65M
PM
772
Phraction Management
Connecticut
$1.64M
CTC
773
Central Trust Company
Missouri
$1.64M
IWA
774
Icon Wealth Advisors
Texas
$1.63M
SAM
775
Smartleaf Asset Management
Massachusetts
$1.63M