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  • Insider Ownership

Insider Trading & Ownership of Allison Ambrose

Location
Waltham, MA
Summary
The estimated net worth of Allison Ambrose is at least $461,550 dollars as of 06 Jan 2026. Allison Ambrose is the General Counsel of Upstream Bio, Inc. and owns shares of Upstream Bio, Inc. (UPB) stock worth about $461.6K.
Signature
/s/ Allison Ambrose
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Ownership of Allison Ambrose

Symbol Company Relationship Holdings Value Past Year Net Change Change % Report Period
UPB Upstream Bio, Inc. General Counsel $461,550 02 Jan 2026

Insider Transactions Reported by Allison Ambrose:

Sym Company Class Transaction % Value $ * Price $ Shares Shares After Date Ownership
* An asterisk sign (*) next to the price indicates that the price is likely invalid.