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Aspen Aerogels
ASPN

Overview Fund Activity

221 hedge funds and large institutions have $458M invested in Aspen Aerogels in 2025 Q1 according to their latest regulatory filings, with 45 funds opening new positions, 83 increasing their positions, 66 reducing their positions, and 49 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
221
Holders Change
-8
Holders Change %
-3.49%
% of All Funds
3%
Holding in Top 10
3
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-40%
% of All Funds
0.04%
New
45
Increased
83
Reduced
66
Closed
49
Calls
$14.3M
Puts
$3.74M
Net Calls
+$10.6M
Net Calls Change
-$10.8M

Top Buyers

1
AIC
AWM Investment Company
New York
+$7.93M
2
MIM
MetLife Investment Management
New Jersey
+$4.66M
3
OCMI
Oaktop Capital Management II
New Jersey
+$4.18M
4
PCM
Penn Capital Management
Pennsylvania
+$4.11M
5
Goldman Sachs
Goldman Sachs
New York
+$3.85M

Top Sellers

1
Point72 Asset Management
Point72 Asset Management
Connecticut
-$13.1M
2
American Century Companies
American Century Companies
Missouri
-$11.9M
3
UM
UniSuper Management
Australia
-$10.1M
4
Alyeska Investment Group
Alyeska Investment Group
Illinois
-$9.5M
5
CSS
Cubist Systematic Strategies
Connecticut
-$7.98M
Name Holding Trade Value Shares
Change 		Shares
Change %
KL
1
KIM LLC
Kansas
$78.5M – – –
BlackRock
2
BlackRock
New York
$31.7M -$262K -41,033 -0.8%
OCMI
3
Oaktop Capital Management II
New Jersey
$28.1M +$4.18M +654,000 +17%
Vanguard Group
4
Vanguard Group
Pennsylvania
$27.9M +$82.5K +12,913 +0.3%
GKFF
5
George Kaiser Family Foundation
Oklahoma
$20.2M – – –
NIM
6
Needham Investment Management
New York
$17.5M +$2.22M +347,500 +15%
Dimensional Fund Advisors
7
Dimensional Fund Advisors
Texas
$16M +$3.12M +488,953 +24%
AIC
8
AWM Investment Company
New York
$15.7M +$7.93M +1,240,535 +103%
TAM
9
Telemark Asset Management
Massachusetts
$12.1M – – –
Millennium Management
10
Millennium Management
New York
$10.2M -$145K -22,630 -1%
Geode Capital Management
11
Geode Capital Management
Massachusetts
$9.69M +$330K +51,612 +4%
State Street
12
State Street
Massachusetts
$9.55M +$43.3K +6,775 +0.5%
Goldman Sachs
13
Goldman Sachs
New York
$8.14M +$3.85M +602,586 +90%
Fidelity Investments
14
Fidelity Investments
Massachusetts
$7.78M -$57.1K -8,933 -0.7%
Two Sigma Investments
15
Two Sigma Investments
New York
$5.76M +$1.97M +308,719 +52%
TI
16
Trexquant Investment
Connecticut
$5.5M +$2.94M +459,582 +115%
RHJA
17
Rice Hall James & Associates
California
$5.3M +$1.75M +274,587 +50%
SM
18
Samjo Management
New York
$5.2M -$390K -61,050 -7%
Morgan Stanley
19
Morgan Stanley
New York
$5.05M +$94.4K +14,779 +2%
MIM
20
MetLife Investment Management
New Jersey
$4.88M +$4.66M +728,641 +2,036%
Renaissance Technologies
21
Renaissance Technologies
New York
$4.88M -$14.7K -2,300 -0.3%
RA
22
Royce & Associates
New York
$4.51M -$1.54M -240,345 -25%
DC
23
Dendur Capital
New York
$4.12M -$837K -130,955 -17%
Squarepoint
24
Squarepoint
New York
$4.11M +$1.54M +240,357 +60%
PCM
25
Penn Capital Management
Pennsylvania
$4.11M +$4.11M +642,094 New
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