Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
9.07
-0.05 (-0.55%)
May 6, 2026, 12:59 PM EDT - Market open
Upstream Bio Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| May 6, 2026 | 9.16 | 9.28 | 8.98 | 9.18 | - | 0.60% | 43,780 |
| May 5, 2026 | 9.31 | 9.50 | 8.88 | 9.12 | 9.12 | -2.04% | 262,659 |
| May 4, 2026 | 9.34 | 9.57 | 9.16 | 9.31 | 9.31 | -0.96% | 300,427 |
| May 1, 2026 | 9.25 | 9.41 | 9.12 | 9.40 | 9.40 | 2.40% | 489,557 |
| Apr 30, 2026 | 9.20 | 9.30 | 9.06 | 9.18 | 9.18 | -0.11% | 394,953 |
| Apr 29, 2026 | 9.32 | 9.37 | 8.97 | 9.19 | 9.19 | -3.36% | 415,823 |
| Apr 28, 2026 | 9.32 | 9.65 | 9.28 | 9.51 | 9.51 | 2.37% | 474,434 |
| Apr 27, 2026 | 9.22 | 9.64 | 9.15 | 9.29 | 9.29 | -0.11% | 664,739 |
| Apr 24, 2026 | 9.47 | 9.63 | 9.21 | 9.30 | 9.30 | -3.12% | 558,825 |
| Apr 23, 2026 | 9.62 | 9.72 | 9.38 | 9.60 | 9.60 | -0.41% | 427,993 |
| Apr 22, 2026 | 9.31 | 9.71 | 9.06 | 9.64 | 9.64 | 4.10% | 624,770 |
| Apr 21, 2026 | 10.01 | 10.05 | 9.22 | 9.26 | 9.26 | -7.31% | 526,274 |
| Apr 20, 2026 | 9.98 | 10.09 | 9.79 | 9.99 | 9.99 | - | 387,572 |
| Apr 17, 2026 | 10.45 | 10.64 | 9.84 | 9.99 | 9.99 | -1.09% | 661,401 |
| Apr 16, 2026 | 9.88 | 10.15 | 9.68 | 10.10 | 10.10 | 2.23% | 1,152,729 |
| Apr 15, 2026 | 10.40 | 10.52 | 9.79 | 9.88 | 9.88 | -4.45% | 552,117 |
| Apr 14, 2026 | 10.14 | 10.45 | 10.08 | 10.34 | 10.34 | 1.08% | 645,890 |
| Apr 13, 2026 | 10.45 | 10.61 | 10.09 | 10.23 | 10.23 | -2.48% | 412,545 |
| Apr 10, 2026 | 10.48 | 10.67 | 10.34 | 10.49 | 10.49 | 0.67% | 733,145 |
| Apr 9, 2026 | 9.67 | 10.49 | 9.63 | 10.42 | 10.42 | 5.89% | 812,951 |
| Apr 8, 2026 | 9.87 | 10.00 | 9.45 | 9.84 | 9.84 | 1.44% | 474,331 |
| Apr 7, 2026 | 9.59 | 9.71 | 9.31 | 9.70 | 9.70 | -0.21% | 316,820 |
| Apr 6, 2026 | 9.49 | 9.89 | 9.36 | 9.72 | 9.72 | 2.32% | 501,444 |
| Apr 2, 2026 | 9.06 | 9.64 | 8.97 | 9.50 | 9.50 | 2.04% | 537,599 |
| Apr 1, 2026 | 9.22 | 9.35 | 8.96 | 9.31 | 9.31 | 3.44% | 848,430 |
| Mar 31, 2026 | 9.01 | 9.17 | 8.82 | 9.00 | 9.00 | 2.51% | 1,026,106 |
| Mar 30, 2026 | 8.53 | 8.78 | 8.29 | 8.78 | 8.78 | 1.27% | 862,875 |
| Mar 27, 2026 | 8.72 | 9.15 | 8.10 | 8.67 | 8.67 | -11.44% | 938,057 |
| Mar 26, 2026 | 9.48 | 10.43 | 9.38 | 9.79 | 9.79 | 3.38% | 876,223 |
| Mar 25, 2026 | 8.68 | 9.57 | 8.67 | 9.47 | 9.47 | 12.07% | 672,921 |
| Mar 24, 2026 | 8.35 | 8.62 | 8.12 | 8.45 | 8.45 | - | 699,711 |
| Mar 23, 2026 | 8.71 | 9.03 | 8.43 | 8.45 | 8.45 | -2.54% | 743,215 |
| Mar 20, 2026 | 8.38 | 8.68 | 8.16 | 8.67 | 8.67 | 3.46% | 3,020,209 |
| Mar 19, 2026 | 8.44 | 8.63 | 8.23 | 8.38 | 8.38 | -3.29% | 733,628 |
| Mar 18, 2026 | 9.58 | 9.70 | 8.66 | 8.67 | 8.67 | -10.76% | 719,494 |
| Mar 17, 2026 | 9.58 | 9.90 | 9.17 | 9.71 | 9.71 | 1.04% | 914,396 |
| Mar 16, 2026 | 9.29 | 9.68 | 9.27 | 9.61 | 9.61 | 4.12% | 663,291 |
| Mar 13, 2026 | 9.32 | 9.76 | 8.93 | 9.23 | 9.23 | -2.17% | 723,097 |
| Mar 12, 2026 | 9.27 | 9.47 | 8.70 | 9.44 | 9.44 | 0.80% | 1,135,699 |
| Mar 11, 2026 | 8.16 | 9.37 | 8.16 | 9.36 | 9.36 | 15.27% | 1,689,779 |
| Mar 10, 2026 | 8.15 | 8.36 | 7.99 | 8.12 | 8.12 | 0.74% | 652,378 |
| Mar 9, 2026 | 7.65 | 8.09 | 7.64 | 8.06 | 8.06 | 5.22% | 1,189,764 |
| Mar 6, 2026 | 7.47 | 7.77 | 7.40 | 7.66 | 7.66 | -0.13% | 662,851 |
| Mar 5, 2026 | 7.64 | 7.78 | 7.40 | 7.67 | 7.67 | -1.67% | 941,663 |
| Mar 4, 2026 | 7.37 | 8.01 | 7.33 | 7.80 | 7.80 | 5.98% | 1,151,748 |
| 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 |