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Filing
SC 13D
SC 13D0001193125-24-241045·AI Upstream LLC
Schedule 13D ownership disclosure
Upstream Bio Inc
Security class unavailable · CUSIP: 91678A107
Event date: 2024-10-15
Legacy cover-page extraction is best effort and may not include every reporting person.
- Filing-level shares
- Unavailable
- Percent of class
- 10.7000%
Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.
Source: SEC EDGAR filingFiling metadata
- Accession number
- 0001193125-24-241045
- Form type
- SC 13D
- Filer
- AI Upstream LLC
- CIK
- CIK 2039907
- Filed
- Oct 22, 2024
- Reporting period
- Oct 15, 2024
- Description
- Schedule 13D beneficial ownership