BCLS Fund III Investments, LP 13D and 13G filings for Upstream Bio, 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 | 
| 2024-10-18 6:10 pm Purchase  | 2024-10-15 | 13G | Upstream Bio, Inc. UPB  | BCLS Fund III Investments, LP | 2,295,322 4.300%  | 2,295,322![]() (New Position)  | Filing | 
