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Lam Research

2,106 hedge funds and large institutions have $136B invested in Lam Research in 2025 Q3 according to their latest regulatory filings, with 349 funds opening new positions, 766 increasing their positions, 729 reducing their positions, and 93 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

5% more repeat investments, than reductions

Existing positions increased: 766 | Existing positions reduced: 729

1.76% less ownership

Funds ownership: 82.54%80.78% (-1.8%)

16% less call options, than puts

Call options by funds: $2.73B | Put options by funds: $3.24B

Holders
2,106
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
82
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.73B
Puts
$3.24B
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
1
$17.5B
2
$16.6B
3
$8.02B
4
$4.49B
5
$4.01B
6
$3.39B
7
$3.13B
8
$2.84B
9
$2.66B
10
$1.95B
11
$1.86B
12
$1.71B
13
$1.53B
14
$1.52B
15
$1.51B
16
$1.48B
17
$1.43B
18
$1.42B
19
$1.39B
20
$1.37B
21
$1.33B
22
$1.32B
23
$1.26B
24
$1.15B
25
$1.04B