ASPN ASPEN AEROGELS INC
FollowCOMMON STOCK (common), issuer CIK 1145986
201 managers (204 13F filers) reported a position in ASPN shares at 2025-09-30, 71,367,747 shares in all. 51 filers opened a position and 28 filers sold out during the quarter.
- Managers
- 201
- 13F filers
- 204
- New
- 51
- Added
- 63
- Reduced
- 55
- Sold out
- 28
- Shares held by filers
- 71,367,747
Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.
13D and 13G filers
No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.
Insider trades
No Form 4 transaction on this security in the data.
13F holders, Q3 2025
Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.
| Holder | Shares | Value | % of portfolio | Change | Source |
|---|---|---|---|---|---|
| Covestor Ltd | 14 | $0 | 0% | 0 | 13F-HRTimelineValue filed as zero, left out of ratios. |