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Aspen Aerogels

181 hedge funds and large institutions have $424M invested in Aspen Aerogels in 2025 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 76 increasing their positions, 53 reducing their positions, and 65 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

Call options by funds: $ | Put options by funds: $

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

more ownership

Funds ownership:

more funds holding in top 10

Funds holding in top 10:

7% less capital invested

Capital invested by funds: $458M → $424M (-$34.3M)

18% less funds holding

Funds holding: 221181 (-40)

62% less first-time investments, than exits

New positions opened: 25 | Existing positions closed: 65

Holders
181
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
3
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.93M
Puts
$2.51M
Net Calls
Net Calls Change

Top Sellers

1 -$6.03M
2 -$5.83M
3 -$4.14M
4
DC
Dendur Capital
New York
-$4.12M
5
Millennium Management
Millennium Management
New York
-$3.98M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$3.57M
27
$3.53M
28
$3.35M
29
$3.23M
30
$3.14M
31
$3.01M
32
$2.93M
33
$2.53M
34
$2.43M
35
$2.39M
36
$2.37M
37
$2.24M
38
$2.1M
39
$2.03M
40
$1.79M
41
$1.69M
42
$1.67M
43
$1.65M
44
$1.62M
45
$1.51M
46
$1.47M
47
$1.27M
48
$1.22M
49
$1.19M
50
$1.13M