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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
Gagnon Securities
New York
+$11.2M
2
Federated Hermes
Federated Hermes
Pennsylvania
+$10.5M
3
Goldman Sachs
Goldman Sachs
New York
+$5.49M
4
Invesco
Invesco
Georgia
+$4.5M
5
RHJA
Rice Hall James & Associates
California
+$4.24M

Top Sellers

1
Fidelity Investments
Fidelity Investments
Massachusetts
-$6.2M
2
AIC
AWM Investment Company
New York
-$6M
3
MIM
MetLife Investment Management
New Jersey
-$4.26M
4
DC
Dendur Capital
New York
-$4.12M
5
Millennium Management
Millennium Management
New York
-$4.1M
Name Holding Trade Value Shares
Change 		Shares
Change %
Janney Montgomery Scott
76
Janney Montgomery Scott
Pennsylvania
$480K -$151K -25,531 -24%
Mitsubishi UFJ Asset Management
77
Mitsubishi UFJ Asset Management
Japan
$469K +$279K +47,144 +147%
Voloridge Investment Management
78
Voloridge Investment Management
Florida
$467K -$79.7K -13,461 -15%
Russell Investments Group
79
Russell Investments Group
United Kingdom
$456K -$255K -43,144 -36%
Universal-Beteiligungs- und Servicegesellschaft
80
Universal-Beteiligungs- und Servicegesellschaft
Germany
$429K +$241K +40,654 +128%
T. Rowe Price Associates
81
T. Rowe Price Associates
Maryland
$420K +$26.7K +4,502 +7%
Capital Fund Management (CFM)
82
Capital Fund Management (CFM)
France
$415K -$1.84M -310,101 -82%
Squarepoint
83
Squarepoint
New York
$404K -$3.4M -574,636 -89%
Legal & General Group
84
Legal & General Group
United Kingdom
$397K +$13.8K +2,324 +4%
Envestnet Asset Management
85
Envestnet Asset Management
Illinois
$396K +$67.5K +11,399 +21%
SC
86
Savant Capital
Illinois
$356K +$356K +60,060 New
Balyasny Asset Management
87
Balyasny Asset Management
Illinois
$350K -$578K -97,649 -62%
California State Teachers Retirement System (CalSTRS)
88
California State Teachers Retirement System (CalSTRS)
California
$335K -$26.8K -4,526 -7%
AIP
89
ARS Investment Partners
New York
$335K +$190K +32,166 +132%
Thrivent Financial for Lutherans
90
Thrivent Financial for Lutherans
Minnesota
$330K – – –
SC
91
Skylands Capital
Wisconsin
$324K – – –
Wells Fargo
92
Wells Fargo
California
$304K -$409K -69,111 -57%
MIM
93
MetLife Investment Management
New Jersey
$264K -$4.26M -719,846 -94%
LPL Financial
94
LPL Financial
California
$259K +$73.1K +12,341 +39%
CM
95
Caption Management
Oklahoma
$259K +$259K +43,700 New
Franklin Resources
96
Franklin Resources
California
$239K +$30 +5 +0%
SMH
97
Sanders Morris Harris
Texas
$237K – – –
Two Sigma Advisers
98
Two Sigma Advisers
New York
$236K -$150K -25,300 -39%
IIM
99
INTECH Investment Management
Florida
$229K +$284 +48 +0.1%
PWM
100
Perigon Wealth Management
California
$224K +$25.3K +4,270 +13%
2 3
4
5 6