Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
7.79
+0.43 (5.84%)
Mar 4, 2026, 4:00 PM EST - Market closed
Upstream Bio Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 4, 2026 | 7.37 | 8.00 | 7.33 | 7.95 | - | 8.02% | 711,384 |
| Mar 3, 2026 | 7.59 | 7.64 | 7.25 | 7.36 | 7.36 | -4.42% | 977,262 |
| Mar 2, 2026 | 7.51 | 7.92 | 7.46 | 7.70 | 7.70 | 0.26% | 1,655,280 |
| Feb 27, 2026 | 7.87 | 8.07 | 7.62 | 7.68 | 7.68 | -2.78% | 1,436,021 |
| Feb 26, 2026 | 7.74 | 8.32 | 7.70 | 7.90 | 7.90 | 2.07% | 1,497,001 |
| Feb 25, 2026 | 7.90 | 8.10 | 7.70 | 7.74 | 7.74 | -2.27% | 987,847 |
| Feb 24, 2026 | 8.05 | 8.27 | 7.78 | 7.92 | 7.92 | -1.25% | 1,538,700 |
| Feb 23, 2026 | 8.09 | 8.32 | 7.74 | 8.02 | 8.02 | -0.74% | 1,625,716 |
| Feb 20, 2026 | 8.41 | 8.69 | 8.01 | 8.08 | 8.08 | -5.39% | 3,597,516 |
| Feb 19, 2026 | 8.32 | 8.73 | 8.14 | 8.54 | 8.54 | 3.02% | 1,924,110 |
| Feb 18, 2026 | 8.18 | 8.66 | 7.93 | 8.29 | 8.29 | -0.48% | 2,893,163 |
| Feb 17, 2026 | 8.69 | 9.00 | 7.96 | 8.33 | 8.33 | -4.80% | 6,025,969 |
| Feb 13, 2026 | 12.69 | 12.69 | 8.52 | 8.75 | 8.75 | -31.64% | 6,503,631 |
| Feb 12, 2026 | 14.86 | 14.86 | 12.75 | 12.80 | 12.80 | -12.87% | 3,879,133 |
| Feb 11, 2026 | 19.00 | 20.01 | 12.65 | 14.69 | 14.69 | -47.18% | 8,848,205 |
| Feb 10, 2026 | 26.10 | 28.58 | 25.93 | 27.81 | 27.81 | 6.47% | 800,791 |
| Feb 9, 2026 | 26.24 | 26.24 | 25.16 | 26.12 | 26.12 | -0.31% | 509,701 |
| Feb 6, 2026 | 26.56 | 27.98 | 25.94 | 26.20 | 26.20 | 0.77% | 517,906 |
| Feb 5, 2026 | 29.40 | 30.31 | 25.87 | 26.00 | 26.00 | -11.50% | 619,509 |
| Feb 4, 2026 | 30.88 | 30.88 | 28.35 | 29.38 | 29.38 | -4.58% | 610,504 |
| Feb 3, 2026 | 30.38 | 31.05 | 29.82 | 30.79 | 30.79 | 2.84% | 635,741 |
| Feb 2, 2026 | 31.10 | 32.38 | 29.64 | 29.94 | 29.94 | -3.67% | 783,093 |
| Jan 30, 2026 | 30.64 | 31.37 | 29.71 | 31.08 | 31.08 | 0.45% | 667,528 |
| Jan 29, 2026 | 30.30 | 31.12 | 29.61 | 30.94 | 30.94 | 1.68% | 459,682 |
| Jan 28, 2026 | 32.50 | 32.50 | 29.99 | 30.43 | 30.43 | -6.37% | 658,138 |
| Jan 27, 2026 | 30.24 | 32.83 | 30.13 | 32.50 | 32.50 | 7.76% | 1,068,844 |
| Jan 26, 2026 | 29.77 | 30.91 | 29.76 | 30.16 | 30.16 | 0.47% | 545,748 |
| Jan 23, 2026 | 31.62 | 31.62 | 29.83 | 30.02 | 30.02 | -5.57% | 371,092 |
| Jan 22, 2026 | 31.74 | 32.52 | 31.70 | 31.79 | 31.79 | 0.63% | 402,451 |
| Jan 21, 2026 | 30.95 | 32.14 | 30.31 | 31.59 | 31.59 | 1.90% | 468,367 |
| Jan 20, 2026 | 30.22 | 31.52 | 29.08 | 31.00 | 31.00 | - | 774,067 |
| Jan 16, 2026 | 31.06 | 31.64 | 29.80 | 31.00 | 31.00 | 0.32% | 418,416 |
| Jan 15, 2026 | 32.42 | 32.42 | 30.74 | 30.90 | 30.90 | -4.33% | 718,897 |
| Jan 14, 2026 | 32.68 | 33.68 | 31.95 | 32.30 | 32.30 | -0.92% | 620,972 |
| Jan 13, 2026 | 31.71 | 32.66 | 30.48 | 32.60 | 32.60 | 2.97% | 834,721 |
| Jan 12, 2026 | 29.73 | 31.93 | 29.34 | 31.66 | 31.66 | 6.42% | 678,977 |
| Jan 9, 2026 | 27.87 | 30.60 | 27.87 | 29.75 | 29.75 | 8.02% | 851,461 |
| Jan 8, 2026 | 27.71 | 28.49 | 27.22 | 27.54 | 27.54 | -1.92% | 502,764 |
| Jan 7, 2026 | 26.08 | 28.16 | 26.08 | 28.08 | 28.08 | 8.54% | 700,323 |
| Jan 6, 2026 | 25.93 | 26.52 | 25.00 | 25.87 | 25.87 | -1.00% | 452,815 |
| Jan 5, 2026 | 27.07 | 27.39 | 25.25 | 26.13 | 26.13 | -3.47% | 689,799 |
| Jan 2, 2026 | 27.30 | 28.01 | 26.72 | 27.07 | 27.07 | -0.29% | 586,439 |
| Dec 31, 2025 | 27.17 | 27.58 | 26.86 | 27.15 | 27.15 | -0.62% | 517,846 |
| Dec 30, 2025 | 28.77 | 28.77 | 26.86 | 27.32 | 27.32 | -5.24% | 831,474 |
| Dec 29, 2025 | 29.48 | 29.92 | 28.70 | 28.83 | 28.83 | -2.20% | 238,342 |
| Dec 26, 2025 | 30.11 | 30.11 | 29.10 | 29.48 | 29.48 | -2.61% | 228,014 |
| Dec 24, 2025 | 29.65 | 30.76 | 29.60 | 30.27 | 30.27 | 3.63% | 266,481 |
| Dec 23, 2025 | 30.27 | 30.76 | 29.05 | 29.21 | 29.21 | -4.01% | 347,234 |
| Dec 22, 2025 | 29.29 | 30.89 | 29.00 | 30.43 | 30.43 | 3.68% | 701,354 |
| Dec 19, 2025 | 30.01 | 30.56 | 29.19 | 29.35 | 29.35 | -1.71% | 1,463,070 |