ASPN icon

Aspen Aerogels

204 hedge funds and large institutions have $497M invested in Aspen Aerogels in 2025 Q3 according to their latest regulatory filings, with 51 funds opening new positions, 63 increasing their positions, 56 reducing their positions, and 28 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
204
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
$11.6M
Puts
$3.28M
Net Calls
Net Calls Change

Top Sellers

1 -$10.4M
2 -$5.51M
3 -$3.14M
4
Renaissance Technologies
Renaissance Technologies
New York
-$3.05M
5
HF
HRT Financial
New York
-$3.02M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$1.23M
52
$1.18M
53
$1.17M
54
$1.13M
55
$1.12M
56
$1.1M
57
$969K
58
$964K
59
$941K
60
$935K
61
$934K
62
$932K
63
$879K
64
$870K
65
$861K
66
$848K
67
$810K
68
$772K
69
$771K
70
$737K
71
$727K
72
$718K
73
$692K
74
$659K
75
$658K