Norges Bank 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 |
| 2025-10-24 4:48 pm Purchase | 2025-09-30 | 13G | Upstream Bio, Inc. UPB | Norges Bank | 2,882,647 5.300% | 2,882,647 (New Position) | Filing |