|4Dec 17, 4:18 PM ET

Ambrose Allison 4

4 · Upstream Bio, Inc. · Filed Dec 17, 2024

Insider Transaction Report

Form 4
Period: 2024-12-16
Ambrose Allison
General Counsel
Transactions
  • Award

    Stock Option (Right to Buy)

    2024-12-16+100,000100,000 total
    Exercise: $19.01Exp: 2034-12-15Common 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

1 file
  • 4
    ownership.xmlPrimary

    4