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Lam Research

1,786 hedge funds and large institutions have $74.3B invested in Lam Research in 2025 Q1 according to their latest regulatory filings, with 268 funds opening new positions, 735 increasing their positions, 544 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

0.37% less ownership

Funds ownership: 80.14%79.77% (-0.37%)

0% less capital invested

Capital invested by funds: $74.6B → $74.3B (-$285M)

Holders
1,786
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
1226
$410K
1227
$408K
1228
$408K
1229
$408K
1230
$407K
1231
$407K
1232
$405K
1233
$404K
1234
$400K
1235
$399K
1236
$398K
1237
$395K
1238
$394K
1239
$393K
1240
$393K
1241
$393K
1242
$391K
1243
$391K
1244
$391K
1245
$390K
1246
$388K
1247
$387K
1248
$386K
1249
$384K
1250
$383K