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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
926
$1.03M
927
$1.03M
928
$1.02M
929
$1.02M
930
$1M
931
$997K
932
$991K
933
$990K
934
$986K
935
$985K
936
$984K
937
$981K
938
$977K
939
$975K
940
$970K
941
$969K
942
$967K
943
$967K
944
$963K
945
$963K
946
$962K
947
$958K
948
$952K
949
$949K
950
$949K