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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
MS
1826
Maven Securities
Jersey
BI
1827
BlueSpruce Investments
Illinois
WFC
1828
Western Financial Corp
California
SCM
1829
Stevens Capital Management
Pennsylvania
MMEA
1830
Main Management ETF Advisors
California
WPW
1831
Waldron Private Wealth
Pennsylvania
BPC
1832
Bryce Point Capital
New York
VH
1833
Visionary Horizons
Tennessee
OAM
1834
Oxford Asset Management
United Kingdom
SAM
1835
Strategy Asset Managers
California
EWM
1836
Elite Wealth Management
Washington
BT
1837
Banque Transatlantique
France
BOTPPF
1838
Board of the Pension Protection Fund
United Kingdom
GCM
1839
Gallacher Capital Management
Colorado
DL
1840
DOHJ LLC
Washington
GCP
1841
GSA Capital Partners
United Kingdom
ASC
1842
Atalanta Sosnoff Capital
New York
QPBE
1843
Quintet Private Bank (Europe)
Luxembourg
CCIA
1844
Campbell & Co Investment Adviser
Maryland
CRC
1845
Curi RMB Capital
Illinois
CIS
1846
Capital International Sarl
California
FWM
1847
FFT Wealth Management
Pennsylvania
IIA
1848
Integral Investment Advisors
California
FFS
1849
Fortress Financial Solutions
Arizona
VV
1850
Verity & Verity
South Carolina