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Upstream Bio, Inc. — Director's Dealing 2025
Feb 7, 2025
32187_dirs_2025-02-07_ae13e34b-6754-446f-9166-e793a659992a.zip
Director's Dealing
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SEC Form 4 — Statement of Changes in Beneficial Ownership
Issuer: Upstream Bio, Inc. (UPB)
CIK: 0002022626
Period of Report: 2025-02-06
Reporting Person: Deykin Aaron (N/A)
Derivative Transactions
| Date | Security | Exercise Price | Code | Shares | A/D | Expiration | Underlying | Ownership |
|---|---|---|---|---|---|---|---|---|
| 2025-02-06 | Stock Option (Right to Buy) | $8.53 | A | 165000 | Acquired | 2035-02-05 | Common Stock (165000) | Direct |
Footnotes
F1: The shares underlying this option shall vest in forty-eight equal monthly installments following February 6, 2025, subject to the Reporting Person's continued service on each such vesting date.
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