UPB Upstream Bio, Inc.
NASDAQActiveCommon stock
UPB is the ticker symbol of Upstream Bio, Inc., which is listed on NASDAQ.
UPB at a glance
- Symbol
- UPB
- Company / issuer
- Upstream Bio, Inc.
- Security type
- Common stock
- Exchange
- NASDAQ
- Status
- Actively traded
- Seen in listing files
- Oct 2024 – present
- Sector
- Health Care
- Industry
- Biotechnology: Pharmaceutical Preparations
- Country
- United States
- IPO year
- 2024
- Market cap
- $283.2 million (Sep 2026)
Upstream Bio, Inc. company profile
- Industry (SIC)
- Pharmaceutical Preparations
- Headquarters
- Waltham, MA
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC filer category
- <br>Emerging growth company
- Latest annual report
- 10-K filed 2026-03-26
- Latest interim report
- 10-Q filed 2026-08-11
- SEC CIK
- 2022626
Source: SEC EDGAR filer data.
UPB price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol UPB?
UPB is the ticker symbol of Upstream Bio, Inc on NASDAQ.
Is UPB still trading?
Yes. UPB appears in the current NASDAQ listings as of Sep 2026.
Which exchange is UPB listed on?
UPB is listed on NASDAQ.