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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
426
$7.01M
427
$6.98M
428
$6.98M
429
$6.97M
430
$6.91M
431
$6.86M
432
$6.76M
433
$6.57M
434
$6.54M
435
$6.49M
436
$6.49M
437
$6.41M
438
$6.39M
439
$6.38M
440
$6.38M
441
$6.35M
442
$6.25M
443
$6.25M
444
$6.22M
445
$6.16M
446
$6.13M
447
$6.11M
448
$6.06M
449
$6.06M
450
$6.05M