BlackRock, Inc. 13D and 13G filings for Sientra, 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 |
| 2022-07-08 4:57 pm Sale | 2022-06-30 | 13G | Sientra, Inc. SIEN | BlackRock Inc. BLK | 112,586 1.800% | -256,778 (-69.52%) | Filing |
| 2022-02-03 4:41 pm Purchase | 2021-12-31 | 13G | Sientra, Inc. SIEN | BlackRock Inc. BLK | 369,364 6.400% | 43,617 (+13.39%) | Filing |
| 2021-02-01 08:30 am Purchase | 2020-12-31 | 13G | Sientra, Inc. SIEN | BlackRock Inc. BLK | 325,747 6.500% | 49,224 (+17.80%) | Filing |