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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
1151
$504K
1152
$504K
1153
$500K
1154
$497K
1155
$496K
1156
$496K
1157
$494K
1158
$492K
1159
$492K
1160
$490K
1161
$490K
1162
$489K
1163
$489K
1164
$488K
1165
$486K
1166
$485K
1167
$484K
1168
$483K
1169
$483K
1170
$483K
1171
$482K
1172
$481K
1173
$481K
1174
$479K
1175
$479K