OAKTOP CAPITAL MANAGEMENT II L.P. 13D and 13G filings for Aspen Aerogels, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-05-15 2:17 pm Unchanged | 2025-03-31 | 13G | Aspen Aerogels, Inc. ASPN | OAKTOP CAPITAL MANAGEMENT II L.P. | 4,394,525 5.350% | 0 (Unchanged) | Filing |
| 2025-05-15 2:10 pm Purchase | 2025-03-31 | 13G | Aspen Aerogels, Inc. ASPN | OAKTOP CAPITAL MANAGEMENT II L.P. | 4,394,525 5.350% | 1,199,767 (+37.55%) | Filing |
| 2023-02-14 5:16 pm Purchase | 2022-12-31 | 13G | Aspen Aerogels, Inc. ASPN | OAKTOP CAPITAL MANAGEMENT II L.P. | 3,194,758 4.830% | 601,486 (+23.19%) | Filing |