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Lam Research

1,793 hedge funds and large institutions have $74.4B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 269 funds opening new positions, 737 increasing their positions, 545 reducing their positions, and 140 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more funds holding in top 10

Funds holding in top 10:

more funds holding

Funds holding:

4% more call options, than puts

Call options by funds: $1.79B | Put options by funds: $1.72B

0.54% less ownership

Funds ownership: 80.41%79.87% (-0.54%)

1% less capital invested

Capital invested by funds: $74.9B → $74.4B (-$445M)

Holders
1,793
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 +$659M
2 +$636M
3 +$622M
4
Coatue Management
Coatue Management
New York
+$328M
5
Citadel Advisors
Citadel Advisors
Florida
+$278M

Top Sellers

1 -$1.39B
2 -$507M
3 -$294M
4
Janus Henderson Group
Janus Henderson Group
United Kingdom
-$282M
5
D.E. Shaw & Co
D.E. Shaw & Co
New York
-$254M
Name Holding Trade Value Shares
Change
Change in
Stake
1026
$750K
1027
$748K
1028
$745K
1029
$743K
1030
$737K
1031
$735K
1032
$732K
1033
$731K
1034
$731K
1035
$728K
1036
$727K
1037
$726K
1038
$723K
1039
$719K
1040
$716K
1041
$713K
1042
$712K
1043
$710K
1044
$710K
1045
$709K
1046
$707K
1047
$703K
1048
$702K
1049
$700K
1050
$698K