4//SEC Filing
Ambrose Allison 4
Accession 0000950170-24-137213
CIK 0002022626other
Filed
Dec 16, 7:00 PM ET
Accepted
Dec 17, 4:18 PM ET
Size
5.3 KB
Accession
0000950170-24-137213
Insider Transaction Report
Form 4
Ambrose Allison
General Counsel
Transactions
- Award
Stock Option (Right to Buy)
2024-12-16+100,000→ 100,000 totalExercise: $19.01Exp: 2034-12-15→ Common Stock (100,000 underlying)
Footnotes (1)
- [F1]25% of the shares underlying this option shall vest on December 16, 2025, with the remainder vesting in thirty-six equal monthly installments thereafter, subject to the Reporting Person's continued service on such vesting date.
Documents
Issuer
Upstream Bio, Inc.
CIK 0002022626
Entity typeother
Related Parties
1- filerCIK 0002047381
Filing Metadata
- Form type
- 4
- Filed
- Dec 16, 7:00 PM ET
- Accepted
- Dec 17, 4:18 PM ET
- Size
- 5.3 KB