Aspen Aerogels, Inc.

NYSE:ASPN Stock Report

Market Cap: US$253.4m

Aspen Aerogels Ownership

Who are the major shareholders and have insiders been buying or selling?


Recent Insider Transactions

NYSE:ASPN Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
13 Aug 25SellUS$47,317Santhosh DanielIndividual6,410US$7.54
12 May 25BuyUS$107,000Donald YoungIndividual20,000US$5.35

Insider Trading Volume

Insider Buying: Insufficient data to determine if insiders have bought more shares than they have sold in the past 3 months.


Ownership Breakdown

What is the ownership structure of ASPN?
Owner TypeNumber of SharesOwnership Percentage
Individual Insiders1,532,0281.85%
Hedge Funds4,394,5255.31%
General Public10,270,09612.4%
Institutions66,628,95480.4%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.


Top Shareholders

Top 25 shareholders own 70.72% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
14.8%
Spring Creek Capital, LLC
12,280,426US$37.6m0%4.38%
5.94%
BlackRock, Inc.
4,918,607US$15.1m-1.18%no data
5.66%
The Vanguard Group, Inc.
4,685,950US$14.3m3.89%no data
5.31%
Oaktop Capital Management II, L.P.
4,394,525US$13.4m0%1.0%
5.25%
Needham Investment Management, LLC
4,351,700US$13.3m26.5%0.71%
4.95%
Invesco Capital Management LLC
4,102,175US$12.6m244%no data
3.82%
George Kaiser Family Foundation
3,167,322US$9.7m0%1.25%
3.02%
State Street Global Advisors, Inc.
2,501,469US$7.7m28.6%no data
2.42%
Dimensional Fund Advisors LP
2,003,963US$6.1m-11%no data
1.93%
Geode Capital Management, LLC
1,602,049US$4.9m1.08%no data
1.79%
JPMorgan Chase & Co.
1,483,671US$4.5m9.93%no data
1.72%
Rice Hall James & Associates, LLC
1,421,605US$4.4m0.99%0.26%
1.66%
Columbia Management Investment Advisers, LLC
1,378,284US$4.2m0%no data
1.4%
American Century Investment Management Inc
1,157,978US$3.5m146%no data
1.37%
Gagnon Securities, LLC
1,133,248US$3.5m-35.4%0.8%
1.21%
Telemark Asset Management, LLC
1,000,000US$3.1m-44.2%0.31%
1.2%
The Goldman Sachs Group, Inc.
997,791US$3.1m107%no data
1.05%
Millennium Management LLC
870,951US$2.7m-39.8%no data
1.05%
Citadel Advisors LLC
866,218US$2.7m-22.3%no data
0.96%
Samjo Management, LLC
798,525US$2.4m134%1.12%
0.91%
Two Sigma Investments, LP
757,419US$2.3m-6.67%no data
0.91%
Bank of America Corporation
752,428US$2.3m-7.66%no data
0.83%
BNP Paribas Financial Markets SNC
691,270US$2.1m-0.13%no data
0.77%
Donald Young
637,834US$2.0m29.1%no data
0.75%
First Eagle Investment Management, LLC
622,487US$1.9m20.3%no data

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/03/22 10:33
End of Day Share Price 2026/03/20 00:00
Earnings2025/12/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Aspen Aerogels, Inc. is covered by 16 analysts. 5 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Benjamin KalloBaird
J. David AndersonBarclays
J. David AndersonBarclays