Gagnon Securities LLC
- SEC CIK
- 0001125725
- Latest filing
- Aug 4, 2026
ASPN holding history
Aspen Aerogels Inc in every 13F filed by Gagnon Securities LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
ASPN overviewAll 13F holders of ASPNFull Q2 2026 holdings
- Shares (Q2 2026)
- 1,535,812
- Value
- $9.74M
- % of portfolio
- 1.9%
- Quarters held
- 5
- Since Q2 2025
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 1,535,812 | $9.74M | 1.9% | −326,039−17.5% | Reduced | Holders |
| Q1 2026 | 1,861,851 | $6.37M | 1.5% | +728,603+64.3% | Added | Holders |
| Q4 2025 | 1,133,248 | $3.21M | 0.7% | −621,585−35.4% | Reduced | Holders |
| Q3 2025 | 1,754,833 | $12.2M | 2.5% | −144,275−7.6% | Reduced | Holders |
| Q2 2025 | 1,899,108 | $11.2M | 2.3% | +1,899,108 | New | Holders |