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Lam Research

1,774 hedge funds and large institutions have $74.2B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 269 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 (-$363M)

Holders
1,774
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
PAM
1751
Parvin Asset Management
South Dakota
$2.18K
PCM
1752
Perritt Capital Management
Illinois
$2.11K
PWA
1753
Physician Wealth Advisors
Utah
$2.04K
CAL
1754
Capital Analysts LLC
Pennsylvania
$2K
WOC
1755
West Oak Capital
California
$1.93K
TCM
1756
TD Capital Management
Tennessee
$1.82K
PPC
1757
Park Place Capital
Alabama
$1.82K
PWM
1758
Parkworth Wealth Management
California
$1.45K
WA
1759
WestEnd Advisors
North Carolina
$1.45K
CIAM
1760
Caitong International Asset Management
Hong Kong
$1.16K
BFS
1761
Bare Financial Services
Pennsylvania
$1.09K
PA
1762
Pineridge Advisors
Missouri
$1.09K
OCM
1763
Osterweis Capital Management
California
$1.09K
CIR
1764
Clear Investment Research
Georgia
$886
1IA
1765
1620 Investment Advisors
Massachusetts
$807
HIA
1766
HFM Investment Advisors
New Jersey
$800
DFA
1767
DHJJ Financial Advisors
Illinois
$727
WBC
1768
West Branch Capital
Massachusetts
$727
BCH
1769
Berkshire Capital Holdings
California
$727
RWM
1770
Rialto Wealth Management
New York
$582
IWM
1771
Inlight Wealth Management
Georgia
$436
GIA
1772
GHP Investment Advisors
Colorado
$381
LWMI
1773
Legacy Wealth Management (Idaho)
Idaho
$291
SWC
1774
Spectrum Wealth Counsel
Indiana
$291
Norges Bank
1775
Norges Bank
Norway