Quick Takeaways
- NEEDHAM INVESTMENT MANAGEMENT LLC filed SCHEDULE 13G for Aspen Aerogels Inc Common Stock, par value $0.00001 per share (ASPN).
- Disclosed ownership: 5.3%.
- Date of event: 31 Dec 2025.
NEEDHAM INVESTMENT MANAGEMENT LLC - 31 Dec 2025 SCHEDULE 13G Report for Aspen Aerogels Inc Common Stock, par value $0.00001 per share (ASPN)
- Filing Manager
- NEEDHAM INVESTMENT MANAGEMENT LLC
- Reporting Manager
- NEEDHAM INVESTMENT MANAGEMENT L.L.C.
- Symbol
- ASPN
- Shares outstanding
- 82,107,547 shares
- Disclosed Ownership
- 4,351,700 shares
- Ownership
- 5.3%
- Form type
- SCHEDULE 13G
- Filing time
- 13 Feb 2026, 17:44:24 UTC
- Date of event
- 31 Dec 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"NEEDHAM INVESTMENT MANAGEMENT LLC disclosed 5.3% ownership in Aspen Aerogels Inc Common Stock, par value $0.00001 per share (ASPN) on 31 Dec 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 13 Feb 2026, 17:44.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (3)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| NEEDHAM INVESTMENT MANAGEMENT L.L.C. | 5.3% | 4,351,700 | 0 | 4,351,700 | By: /s/ James W. Giangrasso | James W. Giangrasso, Chief Financial Officer | |
| NEEDHAM ASSET MANAGEMENT, LLC | 5.3% | 4,351,700 | 0 | 4,351,700 | By: /s/ James W. Giangrasso | James W. Giangrasso, Authorized Person | |
| GEORGE A. NEEDHAM | 5.3% | 4,351,700 | 0 | 4,351,700 | By: /s/ George A. Needham | George A. Needham |