BlackRock, Inc. 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 |
| 2024-01-31 2:08 pm Purchase |
2023-12-31 | 13G | Aspen Aerogels, Inc. ASPN |
BLACKROCK INC BLK |
4,054,986 5.300% |
2,531,411 (+166.15%) |
Filing |
| 2021-09-09 4:20 pm Sale |
2021-08-31 | 13G | Aspen Aerogels, Inc. ASPN |
BLACKROCK INC BLK |
1,523,575 4.600% |
-277,399 (-15.40%) |
Filing |
| 2021-02-02 3:13 pm Purchase |
2020-12-31 | 13G | Aspen Aerogels, Inc. ASPN |
BLACKROCK INC BLK |
1,800,974 6.700% |
1,800,974 (New Position) |
Filing |