Atlas Venture Fund X L.P. 13D and 13G filings for Spero Therapeutics, 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 |
| 2021-02-16 5:29 pm Unchanged |
2021-02-12 | 13D | Spero Therapeutics, Inc. SPRO |
Atlas Venture Fund X L.P. | 1,031,160 3.800% |
0 (Unchanged) |
Filing |