BlackRock, Inc. 13D and 13G filings for Acceleron Pharma 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 |
| 2021-01-28 5:55 pm Sale | 2020-12-31 | 13G | Acceleron Pharma Inc. XLRN | BlackRock Inc. BLK | 4,611,814 7.700% | -780,454 (-14.47%) | Filing |
| 2020-06-09 4:33 pm Purchase | 2020-05-31 | 13G | Acceleron Pharma Inc. XLRN | BlackRock Inc. BLK | 5,392,268 10.000% | 504,467 (+10.32%) | Filing |