Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
18.63
0.04 (0.22%)
At close: Oct 03, 2025, 3:59 PM
18.50
-0.70%
After-hours: Oct 03, 2025, 07:07 PM EDT
UPB Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 3, 2025 | 18.60 | 19.06 | 18.60 | 18.63 | 18.63 | 0.22% | 233,780 |
| Oct 2, 2025 | 18.69 | 19.01 | 18.37 | 18.59 | 18.59 | -0.21% | 336,949 |
| Oct 1, 2025 | 18.67 | 19.00 | 18.05 | 18.63 | 18.63 | -0.96% | 327,800 |
| Sep 30, 2025 | 17.34 | 19.23 | 17.14 | 18.81 | 18.81 | 8.48% | 783,075 |
| Sep 29, 2025 | 17.23 | 17.81 | 17.06 | 17.34 | 17.34 | 0.46% | 208,400 |
| Sep 26, 2025 | 16.35 | 17.32 | 16.27 | 17.26 | 17.26 | 5.82% | 254,648 |
| Sep 25, 2025 | 16.60 | 16.63 | 16.02 | 16.31 | 16.31 | -2.63% | 171,304 |
| Sep 24, 2025 | 16.25 | 16.78 | 16.20 | 16.75 | 16.75 | 2.89% | 294,785 |
| Sep 23, 2025 | 16.50 | 16.79 | 16.14 | 16.28 | 16.28 | -2.22% | 190,419 |
| Sep 22, 2025 | 16.40 | 16.98 | 16.00 | 16.65 | 16.65 | 1.65% | 322,100 |
| Sep 19, 2025 | 17.41 | 17.59 | 16.16 | 16.38 | 16.38 | -5.15% | 2,447,213 |
| Sep 18, 2025 | 16.22 | 17.40 | 16.16 | 17.27 | 17.27 | 7.80% | 342,800 |
| Sep 17, 2025 | 17.33 | 17.78 | 15.55 | 16.02 | 16.02 | -7.67% | 540,214 |
| Sep 16, 2025 | 16.78 | 17.97 | 16.61 | 17.35 | 17.35 | 3.34% | 593,400 |
| Sep 15, 2025 | 17.83 | 18.00 | 16.79 | 16.79 | 16.79 | -4.44% | 374,000 |
| Sep 12, 2025 | 18.00 | 18.11 | 17.54 | 17.57 | 17.57 | -1.95% | 282,530 |
| Sep 11, 2025 | 17.75 | 18.18 | 17.47 | 17.92 | 17.92 | 0.67% | 305,365 |
| Sep 10, 2025 | 18.21 | 18.71 | 17.02 | 17.80 | 17.80 | -2.41% | 526,240 |
| Sep 9, 2025 | 18.72 | 18.94 | 17.98 | 18.24 | 18.24 | -2.62% | 373,700 |
| Sep 8, 2025 | 20.08 | 20.32 | 18.67 | 18.73 | 18.73 | -6.21% | 600,744 |
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