Aspen Aerogels, Inc. (ASPN)
WHOLESALE-LUMBER & OTHER CONSTRUCTION MATERIALS
Aspen Aerogels, Inc. (ASPN) is listed on the New York Stock Exchange, where it has traded since June 13, 2014.
- Listed On
- the New York Stock Exchange
- Listed Since
- June 13, 2014
- Employees
- 854
- Market Cap
- $412M
About Aspen Aerogels, Inc.
Aspen Aerogels Inc is an aerogel technology company that designs, develops, and manufactures high-performance aerogel insulation used in the energy industrial and sustainable insulation markets. The company also conducts research and development related to aerogel technology, supported by funding from several agencies of the United States of America government and other institutions in the form of research and development contracts. It is engaged in two operating segment Energy Industrial and Thermal Barrier. Geographically, it operates in the U.S. and also has a presence in other International countries. It generates the majority of its revenue from the Thermal Barrier segment and the United States market. Some of its products include Pyrogel XTE, Cryogel Z, Spaceloft Subsea, and others.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 176 institutions reported holding ASPN, with 73.4 million shares worth $464.8 million in aggregate. The largest reported holder was Kim, with 12.3 million shares worth $77.9 million. Of the 5 largest holders listed below, 2 added shares, 1 reduced its position and 2 held their positions unchanged during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| Kim | 12,280,426 | $78M | Unchanged |
| BlackRock | 5,277,148 | $33M | Added 11.26% |
| Oaktop Capital Management II | 5,168,674 | $33M | Unchanged |
| Vanguard | 4,741,228 | $30M | Added 2.27% |
| Needham Investment Management | 3,260,800 | $21M | Reduced 27.84% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is ASPN?
Aspen Aerogels, Inc. (ASPN) is listed on the New York Stock Exchange, where it has traded since June 13, 2014.
Who are the largest institutional holders of ASPN?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of ASPN were Kim, BlackRock and Oaktop Capital Management II.
How many institutions own ASPN?
176 institutions reported a position in ASPN for the quarter ended June 30, 2026, worth $464.8 million in total.
Did institutions buy or sell ASPN last quarter?
Of the 5 largest reported holders, 2 added shares, 1 reduced its position and 2 held their positions unchanged during the quarter. Every reported holder and its change is on the SentiSense ownership page for ASPN.
Every reported institutional holder, plus insider and congressional trades in ASPN, on SentiSense.