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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
76
$653K
77
$632K
78
$575K
79
$560K
80
$558K
81
$534K
82
$498K
83
$488K
84
$473K
85
$467K
86
$460K
87
$459K
88
$454K
89
$446K
90
$422K
91
$418K
92
$386K
93
$374K
94
$349K
95
$346K
96
$343K
97
$325K
98
$313K
99
$280K
100
$278K