6.40
price down icon0.16%   -0.010
after-market After Hours: 6.30 -0.10 -1.56%
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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 July 27, 2026, is $6.40.
  • 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 24.51% to $6.40 now.
  • The 52-week high stock price for UPB is $33.68, representing a 426.25% increase from the current share price, occurred on January 14, 2026.
  • The 52-week low stock price for UPB is $5.85, indicating a -8.59% decrease from the current share price, occurred on June 12, 2026.
The table below shows more information about UPB historical price data:
Date High Low High - Low Volume % Change
Jul 27, 2026 $6.60 $6.26 $0.34 459,471.0 -0.16%
Jul 24, 2026 $6.61 $6.16 $0.45 626,341.0 +0.16%
Jul 23, 2026 $6.59 $6.32 $0.27 625,130.0 -2.88%
Jul 22, 2026 $6.99 $6.47 $0.52 704,488.0 -5.59%
Jul 21, 2026 $7.08 $6.86 $0.22 340,950.0 +0.00%
Jul 20, 2026 $7.14 $6.80 $0.345 457,968.0 -0.43%
Jul 17, 2026 $7.30 $6.90 $0.40 378,032.0 -3.04%
Jul 16, 2026 $7.34 $6.98 $0.36 561,160.0 -0.55%
Jul 15, 2026 $7.32 $7.08 $0.24 331,606.0 +1.82%
Jul 14, 2026 $7.34 $7.00 $0.34 340,039.0 -1.92%
Jul 13, 2026 $7.53 $7.02 $0.505 266,131.0 -3.32%
Jul 10, 2026 $7.81 $7.28 $0.53 341,646.0 -3.59%
Jul 09, 2026 $8.00 $7.57 $0.43 467,481.0 -2.13%
Jul 08, 2026 $8.00 $7.53 $0.47 635,108.0 +1.53%
Jul 07, 2026 $8.00 $7.32 $0.68 726,025.0 +6.22%
Jul 06, 2026 $7.59 $7.34 $0.251 357,006.0 -1.46%
Jul 02, 2026 $7.72 $7.16 $0.5564 363,212.0 +3.16%
Jul 01, 2026 $7.42 $6.81 $0.61 560,981.0 +5.20%
Jun 30, 2026 $7.38 $6.88 $0.50 557,817.0 -0.14%

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
Jul, 2026 $8.00 $6.16 $1.84 9,002,246.0 -7.51%
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%
$91.09
price up icon 1.97%
$118.87
price up icon 1.02%
$34.72
price down icon 0.83%
$58.73
price down icon 0.17%
ONC ONC
$325.90
price up icon 0.00%
$278.40
price up icon 2.44%
Cap:     |  Volume (24h):