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 |