Quick Takeaways
- NORGES BANK filed SCHEDULE 13G for Upstream Bio Inc Common Stock (UPB).
- Disclosed ownership: 5.3%.
- Date of event: 30 Sep 2025.
NORGES BANK - 30 Sep 2025 SCHEDULE 13G Report for Upstream Bio Inc Common Stock (UPB)
- Filing Manager
- NORGES BANK
- Reporting Manager
- Norges Bank
- Security
- Upstream Bio Inc Common Stock
- Symbol
- UPB
- Shares outstanding
- 54,389,566 shares
- Disclosed Ownership
- 2,882,647 shares
- Ownership
- 5.3%
- Form type
- SCHEDULE 13G
- Filing time
- 24 Oct 2025, 16:48:13 UTC
- Date of event
- 30 Sep 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"NORGES BANK disclosed 5.3% ownership in Upstream Bio Inc Common Stock (UPB) on 30 Sep 2025."
What Changed
- No earlier schedule filing is available for direct comparison.
- Current filing was accepted on 24 Oct 2025, 16:48.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Norges Bank | 5.3% | 2,882,647 | 2,882,647 | 0 | Aya Sobhy | Business and Regulatory Compliance |