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5.36
3.68%
0.19
After Hours:
5.34
-0.02
-0.37%
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 September 25, 2026, is $5.36.
- 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 $4.985 on September 23, 2026. Since then, Upstream Bio Inc's stock price has risen over 7.52% to $5.36 now.
- The 52-week high stock price for UPB is $33.68, representing a 528.36% increase from the current share price, occurred on January 14, 2026.
- The 52-week low stock price for UPB is $4.985, indicating a -7.00% decrease from the current share price, occurred on September 23, 2026.
The table below shows more information about UPB historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Sep 25, 2026 | $5.39 | $5.07 | $0.32 | 429,109.0 | +3.68% |
| Sep 24, 2026 | $5.20 | $5.04 | $0.155 | 566,581.0 | -0.39% |
| Sep 23, 2026 | $5.49 | $4.99 | $0.505 | 553,026.0 | -5.46% |
| Sep 22, 2026 | $5.56 | $5.38 | $0.18 | 360,398.0 | +2.33% |
| Sep 21, 2026 | $5.44 | $5.27 | $0.17 | 364,034.0 | +0.47% |
| Sep 18, 2026 | $5.41 | $5.21 | $0.20 | 1,000,981.0 | +0.56% |
| Sep 17, 2026 | $5.48 | $5.24 | $0.245 | 533,870.0 | -0.38% |
| Sep 16, 2026 | $5.54 | $5.27 | $0.27 | 497,239.0 | -2.74% |
| Sep 15, 2026 | $5.81 | $5.46 | $0.355 | 421,157.0 | -5.68% |
| Sep 14, 2026 | $5.87 | $5.70 | $0.17 | 491,023.0 | +1.40% |
| Sep 11, 2026 | $5.84 | $5.65 | $0.19 | 501,306.0 | -0.35% |
| Sep 10, 2026 | $5.86 | $5.67 | $0.19 | 562,400.0 | -3.52% |
| Sep 09, 2026 | $6.20 | $5.77 | $0.43 | 726,162.0 | -3.72% |
| Sep 08, 2026 | $6.21 | $5.77 | $0.44 | 949,038.0 | +3.00% |
| Sep 04, 2026 | $6.23 | $5.96 | $0.265 | 540,422.0 | -1.15% |
| Sep 03, 2026 | $6.49 | $5.77 | $0.72 | 1,351,760.0 | -6.17% |
| Sep 02, 2026 | $6.98 | $6.41 | $0.57 | 515,403.0 | -1.07% |
| Sep 01, 2026 | $6.72 | $6.50 | $0.22 | 476,485.0 | -1.06% |
| Aug 31, 2026 | $6.77 | $6.44 | $0.33 | 895,007.0 | -1.05% |
| Aug 28, 2026 | $6.79 | $6.60 | $0.19 | 445,475.0 | -1.47% |
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.
Upstream Bio Inc Stock (UPB) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Sep, 2026 | $6.98 | $4.99 | $2.00 | 11,269,503.0 | -19.03% |
| Aug, 2026 | $7.70 | $6.17 | $1.53 | 13,419,093.0 | +4.91% |
| Jul, 2026 | $8.00 | $6.09 | $1.91 | 10,296,647.0 | -8.82% |
| Jun, 2026 | $8.64 | $5.85 | $2.79 | 15,250,716.0 | -17.22% |
| May, 2026 | $9.60 | $7.99 | $1.61 | 10,271,388.0 | -8.93% |
| Apr, 2026 | $10.67 | $8.96 | $1.71 | 12,113,945.0 | +2.00% |
| Mar, 2026 | $10.43 | $7.25 | $3.18 | 22,603,021.0 | +17.19% |
| Feb, 2026 | $32.38 | $7.62 | $24.76 | 44,951,937.0 | -75.29% |
| Jan, 2026 | $33.68 | $25.00 | $8.68 | 12,435,765.0 | +14.48% |
Upstream Bio Inc Stock (UPB) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $30.89 | $24.61 | $6.28 | 12,118,113.0 | -4.48% |
| Nov, 2025 | $33.00 | $21.98 | $11.02 | 8,784,413.0 | +10.64% |
| Oct, 2025 | $26.90 | $18.05 | $8.85 | 8,125,871.0 | +37.43% |
| Sep, 2025 | $21.03 | $15.55 | $5.48 | 12,893,529.0 | +9.81% |
| Aug, 2025 | $19.37 | $14.21 | $5.16 | 9,057,642.0 | +11.89% |
| Jul, 2025 | $16.15 | $10.54 | $5.61 | 8,863,349.0 | +39.44% |
| Jun, 2025 | $12.10 | $9.25 | $2.85 | 10,827,671.0 | +18.96% |
| May, 2025 | $9.90 | $7.79 | $2.11 | 8,016,902.0 | -0.32% |
| Apr, 2025 | $10.50 | $5.14 | $5.36 | 6,329,494.0 | +51.31% |
| Mar, 2025 | $10.08 | $6.12 | $3.96 | 5,002,930.0 | -22.82% |
| Feb, 2025 | $10.65 | $6.65 | $4.00 | 4,866,797.0 | -26.37% |
| Jan, 2025 | $18.95 | $9.29 | $9.66 | 4,964,040.0 | -34.49% |
Upstream Bio Inc Stock (UPB) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $24.98 | $14.97 | $10.01 | 8,803,116.0 | -21.72% |
| Nov, 2024 | $29.46 | $17.09 | $12.37 | 4,900,376.0 | -11.81% |
| Oct, 2024 | $27.68 | $20.74 | $6.94 | 4,827,709.0 | +0.00% |
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