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

241 filings reported holding ASPN - ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share as of Q3 2025.
ASPEN AEROGELS INC - Common Stock, par value $0.00001 per share (ASPN) has 198 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 71.4M shares of 82.1M outstanding shares and own 86.91% of the company stock.
Largest 10 shareholders include KIM, LLC (12.3M shares), BlackRock, Inc. (4.98M shares), VANGUARD GROUP INC (4.51M shares), OAKTOP CAPITAL MANAGEMENT II, L.P. (4.39M shares), NEEDHAM INVESTMENT MANAGEMENT LLC (3.44M shares), George Kaiser Family Foundation (3.17M shares), DIMENSIONAL FUND ADVISORS LP (2.25M shares), STATE STREET CORP (1.94M shares), Telemark Asset Management, LLC (1.79M shares), and GAGNON SECURITIES LLC (1.75M shares).
This table shows the top 198 institutional shareholders of the company equity. This data is sourced directly from the SEC via 13F filings.

* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.