Upstream Bio Inc Stock (UPB) Price History
The historical daily chart and data for Upstream Bio Inc stock (UPB), show that the latest closing stock price as of November 06, 2026, is $3.21.
- Upstream Bio Inc all-time high stock price is $33.68, occurred on January 14, 2026.
- The lowest Upstream Bio Inc stock price recorded was $2.68 on October 27, 2026. Since then, Upstream Bio Inc's stock price has risen over 16.51% to $3.21 now.
- The 52-week high stock price for UPB is $33.68, representing a 949.22% increase from the current share price, occurred on January 14, 2026.
- The 52-week low stock price for UPB is $2.68, indicating a 16.51% decrease from the current share price, occurred on October 27, 2026.
- The closing price of Upstream Bio Inc (UPB) stock in the beginning of 2025 was $16.30. The stock closed the year at $27.15, a gain of over 66.56% for the year.
The table below shows more information about UPB historical price data:
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Upstream Bio Inc Stock (UPB) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Upstream Bio Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of UPB shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Upstream Bio Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.