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Aspen Aerogels

221 hedge funds and large institutions have $458M invested in Aspen Aerogels in 2025 Q1 according to their latest regulatory filings, with 44 funds opening new positions, 83 increasing their positions, 67 reducing their positions, and 49 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:

less ownership

Funds ownership:

less funds holding

Funds holding:

10% less first-time investments, than exits

New positions opened: 44 | Existing positions closed: 49

40% less funds holding in top 10

Funds holding in top 10: 53 (-2)

47% less capital invested

Capital invested by funds: $867M → $458M (-$409M)

Holders
221
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
$14.3M
Puts
$3.74M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
76
$590K
77
$581K
78
$536K
79
$514K
80
$499K
81
$495K
82
$487K
83
$464K
84
$445K
85
$433K
86
$431K
87
$425K
88
$417K
89
$414K
90
$414K
91
$405K
92
$399K
93
$395K
94
$390K
95
$374K
96
$369K
97
$360K
98
$356K
99
$355K
100
$350K