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Aspen Aerogels
ASPN

Overview Fund Activity

182 hedge funds and large institutions have $424M invested in Aspen Aerogels in 2025 Q2 according to their latest regulatory filings, with 26 funds opening new positions, 76 increasing their positions, 53 reducing their positions, and 65 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
182
Holders Change
-39
Holders Change %
-17.65%
% of All Funds
2.44%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
26
Increased
76
Reduced
53
Closed
65
Calls
$4.93M
Puts
$2.51M
Net Calls
+$2.42M
Net Calls Change
-$8.18M

Top Buyers

1
GS
1
Gagnon Securities
New York
$11.2M
2
Federated Hermes
2
Federated Hermes
Pennsylvania
$10.5M
3
Goldman Sachs
3
Goldman Sachs
New York
$13M
4
Invesco
4
Invesco
Georgia
$4.93M
5
RHJA
5
Rice Hall James & Associates
California
$9.14M

Top Sellers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$1M
2
AIC
2
AWM Investment Company
New York
$8.5M
3
MIM
3
MetLife Investment Management
New Jersey
$264K
4
DC
4
Dendur Capital
New York
$0
5
Millennium Management
5
Millennium Management
New York
$5.37M
Name Holding Trade Value Shares
Change 		Shares
Change %
PCM
201
Prelude Capital Management
New York
– -$321K -50,226 Closed
VI
202
Versor Investments
New York
– -$278K -43,500 Closed
XT
203
XTX Topco
Cayman Islands
– -$264K -41,318 Closed
DFCM
204
Dark Forest Capital Management
Puerto Rico
– -$240K -37,520 Closed
SEI Investments
205
SEI Investments
Pennsylvania
– -$238K -37,181 Closed
LAM
206
Lewis Asset Management
California
– -$212K -33,100 Closed
CF
207
Corebridge Financial
Texas
– -$193K -30,242 Closed
AFM
208
Abbot Financial Management
Massachusetts
– -$193K -30,180 Closed
Wolverine Trading
209
Wolverine Trading
Illinois
– -$183K -27,851 Closed
QC
210
Quadrature Capital
United Kingdom
– -$161K -25,300 Closed
FRM
211
Fox Run Management
Connecticut
– -$153K -23,955 Closed
DnB Asset Management
212
DnB Asset Management
Norway
– -$148K -23,126 Closed
SPA
213
Sherbrooke Park Advisers
New York
– -$143K -22,397 Closed
QT
214
Quantbot Technologies
New York
– -$124K -19,334 Closed
Man Group
215
Man Group
United Kingdom
– -$120K -18,706 Closed
JSW
216
Journey Strategic Wealth
New Jersey
– -$112K -17,596 Closed
BP
217
Ballentine Partners
Massachusetts
– -$104K -16,317 Closed
ECM
218
Eisler Capital Management
United Kingdom
– -$99K -15,469 Closed
Kovitz Investment Group Partners
219
Kovitz Investment Group Partners
Illinois
– -$93K -14,548 Closed
GCP
220
GSA Capital Partners
United Kingdom
– -$91K -14,294 Closed
CWM
221
CIBC World Markets
New York
– -$87.5K -13,698 Closed
TSS
222
Two Sigma Securities
New York
– -$73.6K -11,513 Closed
HWM
223
HB Wealth Management
Georgia
– -$73.4K -11,481 Closed
PWP
224
Pursue Wealth Partners
California
– -$71.6K -11,202 Closed
ETC
225
Exchange Traded Concepts
Oklahoma
– -$47.5K -7,436 Closed
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