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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
376
$9.32M
377
$9.31M
378
$9.08M
379
$9.07M
380
$9.06M
381
$9.04M
382
$9.02M
383
$8.99M
384
$8.93M
385
$8.87M
386
$8.86M
387
$8.73M
388
$8.66M
389
$8.65M
390
$8.27M
391
$8.23M
392
$8.15M
393
$8.11M
394
$8.02M
395
$8.02M
396
$8.01M
397
$7.92M
398
$7.92M
399
$7.88M
400
$7.85M