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Lam Research

2,358 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 434 funds opening new positions, 764 increasing their positions, 893 reducing their positions, and 125 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 capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

3.56% more ownership

Funds ownership: 80.69%84.26% (+3.6%)

14% less repeat investments, than reductions

Existing positions increased: 764 | Existing positions reduced: 893

29% less call options, than puts

Call options by funds: $4.3B | Put options by funds: $6.05B

Holders
2,358
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
113
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.3B
Puts
$6.05B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
RWM
1926
Rialto Wealth Management
New York
$268K
RAM
1927
Revere Asset Management
Texas
$268K
KPWG
1928
KFA Private Wealth Group
Virginia
$267K
LWCFA
1929
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$267K
GWM
1930
Graybill Wealth Management
Illinois
$267K
GWM
1931
Gilpin Wealth Management
Colorado
$266K
RMCM
1932
Reynders McVeigh Capital Management
Massachusetts
$266K
MA
1933
MCF Advisors
Kentucky
$265K
OFS
1934
Oldfather Financial Services
Nebraska
$265K
LJAC
1935
L.J. Altfest & Co
New York
$265K
IIC
1936
Integrated Investment Consultants
Michigan
$264K
SC
1937
Seldon Capital
California
$264K
CFO
1938
Collective Family Office
Pennsylvania
$263K
FHC
1939
First Horizon Corporation
Tennessee
$262K
MSR
1940
Main Street Research
Connecticut
$261K
WMA
1941
Wealth Management Associates
New Jersey
$261K
BLC
1942
Brown, Lisle/Cummings
Rhode Island
$260K
SIM
1943
Seaview Investment Managers
Florida
$260K
WE
1944
Wealth Effects
Massachusetts
$260K
TC
1945
T3 Companies
New York
$259K
LWM
1946
LeConte Wealth Management
Tennessee
$258K
PK
1947
Pflug Koory
Nebraska
$258K
FIG
1948
FSA Investment Group
Florida
$257K
BIG
1949
Builder Investment Group
Georgia
$257K
LF
1950
Lantz Financial
Illinois
$256K