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Lam Research

2,385 hedge funds and large institutions have $183B invested in Lam Research in 2025 Q4 according to their latest regulatory filings, with 452 funds opening new positions, 768 increasing their positions, 896 reducing their positions, and 125 closing their positions.

New
Increased
Maintained
Reduced
Closed

262% more first-time investments, than exits

New positions opened: 452 | Existing positions closed: 125

38% more funds holding in top 10

Funds holding in top 10: 82113 (+31)

34% more capital invested

Capital invested by funds: $136B → $183B (+$46.5B)

13% more funds holding

Funds holding: 2,1062,385 (+279)

3.11% more ownership

Funds ownership: 80.78%83.89% (+3.1%)

14% less repeat investments, than reductions

Existing positions increased: 768 | Existing positions reduced: 896

29% less call options, than puts

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

Holders
2,385
Holders Change
+279
Holders Change %
+13.25%
% of All Funds
29.02%
Holding in Top 10
113
Holding in Top 10 Change
+31
Holding in Top 10 Change %
+37.8%
% of All Funds
1.38%
New
452
Increased
768
Reduced
896
Closed
125
Calls
$4.3B
Puts
$6.05B
Net Calls
-$1.75B
Net Calls Change
-$1.25B
Name Holding Trade Value Shares
Change
Change in
Stake
GWM
1951
Graybill Wealth Management
Illinois
$267K -$4.67K -30 -2%
GWM
1952
Gilpin Wealth Management
Colorado
$266K +$242K +1,554 New
RMCM
1953
Reynders McVeigh Capital Management
Massachusetts
$266K +$311 +2 +0.1%
MA
1954
MCF Advisors
Kentucky
$265K +$9.33K +60 +4%
OFS
1955
Oldfather Financial Services
Nebraska
$265K
LJAC
1956
L.J. Altfest & Co
New York
$265K -$1.24K -8 -0.5%
IIC
1957
Integrated Investment Consultants
Michigan
$264K -$216K -1,389 -47%
SC
1958
Seldon Capital
California
$264K
CFO
1959
Collective Family Office
Pennsylvania
$263K -$15.6K -100 -6%
FHC
1960
First Horizon Corporation
Tennessee
$262K
MSR
1961
Main Street Research
Connecticut
$261K +$237K +1,524 New
WMA
1962
Wealth Management Associates
New Jersey
$261K -$22.6K -145 -9%
BLC
1963
Brown, Lisle/Cummings
Rhode Island
$260K
SIM
1964
Seaview Investment Managers
Florida
$260K -$72.9K -469 -24%
WE
1965
Wealth Effects
Massachusetts
$260K
TC
1966
T3 Companies
New York
$259K +$235K +1,512 New
LWM
1967
LeConte Wealth Management
Tennessee
$258K +$234K +1,507 New
PK
1968
Pflug Koory
Nebraska
$258K
FIG
1969
FSA Investment Group
Florida
$257K +$5.29K +34 +2%
BIG
1970
Builder Investment Group
Georgia
$257K
LF
1971
Lantz Financial
Illinois
$256K -$14.8K -95 -6%
JMFC
1972
J.M. Forbes & Co
Massachusetts
$256K
TWM
1973
Topsail Wealth Management
North Carolina
$256K
AG
1974
AlTi Global
New York
$255K -$1.3M -8,366 -85%
CW
1975
Cedarwood Wealth
Colorado
$255K +$178K +1,143 New