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6.01
1.15%
-0.07
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 04, 2026, is $6.01.
- 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 $5.14 on April 09, 2025. Since then, Upstream Bio Inc's stock price has risen over 16.93% to $6.01 now.
- The 52-week high stock price for UPB is $33.68, representing a 460.40% increase from the current share price, occurred on January 14, 2026.
- The 52-week low stock price for UPB is $5.85, indicating a -2.66% decrease from the current share price, occurred on June 12, 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 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% |
| Aug 27, 2026 | $7.14 | $6.78 | $0.36 | 335,060.0 | -4.77% |
| Aug 26, 2026 | $7.31 | $6.90 | $0.41 | 432,930.0 | -0.70% |
| Aug 25, 2026 | $7.18 | $6.55 | $0.63 | 554,212.0 | +8.62% |
| Aug 24, 2026 | $7.11 | $6.46 | $0.65 | 538,533.0 | -5.16% |
| Aug 21, 2026 | $7.01 | $6.85 | $0.1562 | 434,240.0 | +1.75% |
| Aug 20, 2026 | $7.55 | $6.75 | $0.81 | 592,928.0 | -8.85% |
| Aug 19, 2026 | $7.53 | $6.91 | $0.62 | 574,110.0 | +9.71% |
| Aug 18, 2026 | $7.43 | $6.73 | $0.705 | 461,648.0 | -4.06% |
| Aug 17, 2026 | $7.19 | $6.86 | $0.33 | 852,439.0 | +0.99% |
| Aug 14, 2026 | $7.14 | $6.80 | $0.34 | 688,248.0 | +2.32% |
| Aug 13, 2026 | $7.04 | $6.87 | $0.17 | 378,828.0 | +0.00% |
| Aug 12, 2026 | $7.25 | $6.84 | $0.41 | 635,117.0 | -2.54% |
| Aug 11, 2026 | $7.70 | $7.01 | $0.69 | 628,005.0 | -4.70% |
| Aug 10, 2026 | $7.62 | $7.20 | $0.42 | 869,490.0 | +2.62% |
| Aug 07, 2026 | $7.26 | $6.89 | $0.37 | 621,836.0 | +5.53% |
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 | $5.77 | $1.21 | 3,424,492.0 | -9.21% |
| 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% |
0.86%
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