Upstream Bio, Inc.
UPB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0002022626
In the last 90 days, Upstream Bio, Inc. insiders filed 0 open-market purchases and 5 sales; 148 institutions reported holding it in 13F filings for Q2 2026, worth $350.1M in total; no superinvestor holds it.
Members of Congress who traded UPB
No member of Congress has reported a trade in Upstream Bio, Inc. since 2020.
Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.