ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share (ASPN)

Historical Holders from Q2 2014 to Q3 2025

Symbol
ASPN on NYSE
CUSIP
04523Y105
Type / Class
Equity / Common Stock, par value $0.00001 per share
Shares outstanding
82.1M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
71.4M
Holdings value
$497M
% of all portfolios
0.002%
Grand Portfolio weight change
0%
Number of holders
198
Number of buys
109
Number of sells
-82
Average Value change %
+0%
Average buys %
+0%
Average sells %
0%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share (ASPN)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
OAKTOP CAPITAL MANAGEMENT II, L.P. 5.35% $23.5M 4.39M Oaktop Capital Management II, L.P. Mar 31, 2025
FMR LLC 1.5% $6.55M 1.23M FMR LLC Dec 31, 2024

Institutional Holders of ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share (ASPN)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 71.4M $497M -$216K $6.96 198
2025 Q2 71.5M $424M -$836K $5.92 181
2025 Q1 71.2M $455M -$45.8M $6.39 217
2024 Q4 73M $867M -$106M $11.88 226
2024 Q3 69.4M $1.92B -$23M $27.69 240
2024 Q2 70.5M $1.68B -$86.7M $23.85 219
2024 Q1 74.2M $1.31B -$10.3M $17.60 163
2023 Q4 220K $3.48M -$1.58M $15.78 2
2023 Q3 67.8M $583M +$31.2M $8.60 155
2023 Q2 66.5M $525M -$10.9M $7.89 158
2023 Q1 67.2M $499M -$26.9M $7.45 154
2022 Q4 67.3M $793M +$354M $11.79 158
2022 Q3 36.3M $335M +$716K $9.22 124
2022 Q2 36.7M $362M -$37.4M $9.88 136
2022 Q1 31.7M $1.09B +$99.4M $34.48 137
2021 Q4 28.5M $1.42B +$23.6M $49.79 156
2021 Q3 27.6M $1.27B -$1.02M $46.01 128
2021 Q2 28.4M $849M +$129M $29.92 112
2021 Q1 23.7M $482M +$37.5M $20.34 83
2020 Q4 21.9M $365M +$23.3M $16.69 74
2020 Q3 18.8M $205M +$9.3M $10.95 68
2020 Q2 18.2M $120M +$4.59M $6.58 65
2020 Q1 17.6M $108M +$10.7M $6.14 59
2019 Q4 16.7M $130M +$3M $7.76 48
2019 Q3 16.4M $97.2M +$2.08M $5.92 40
2019 Q2 16.1M $115M -$775K $7.13 33
2019 Q1 16.3M $41.5M +$465K $2.55 34
2018 Q4 16.3M $34.7M -$2.67M $2.13 34
2018 Q3 16.5M $75.3M -$863K $4.57 42
2018 Q2 16.7M $81.7M -$337K $4.90 44
2018 Q1 16.8M $71.7M +$232K $4.27 48
2017 Q4 16.7M $81.6M -$2.43M $4.88 47
2017 Q3 17.5M $76.3M +$30.1K $4.35 49
2017 Q2 17.5M $77.9M +$73.3K $4.45 43
2017 Q1 17M $70.5M +$3.77M $4.15 40
2016 Q4 17.2M $70.9M -$7.51M $4.13 50
2016 Q3 17.6M $105M +$710K $5.96 52
2016 Q2 17.7M $88.1M -$744K $4.97 57
2016 Q1 17.9M $80.7M -$4.11M $4.50 51
2015 Q4 18.5M $112M +$1.19M $6.07 45
2015 Q3 18.2M $137M -$597K $7.50 52
2015 Q2 18.3M $121M -$3.21M $6.62 38
2015 Q1 18.8M $137M -$3.13M $7.28 39
2014 Q4 19.2M $153M -$2.66M $7.98 35
2014 Q3 19.5M $196M +$65.4K $10.08 41
2014 Q2 19.4M $214M +$214M $11.05 28