Upstream Bio Inc. (UPB)
NASDAQ: UPB
· Real-Time Price · USD
18.95
0.33 (1.77%)
At close: Aug 15, 2025, 3:59 PM
19.00
0.29%
After-hours: Aug 15, 2025, 05:39 PM EDT
UPB Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 14, 2025 | 18.43 | 18.95 | 16.80 | 18.62 | 18.62 | 0.32% | 525,563 |
| Aug 13, 2025 | 17.51 | 18.70 | 17.05 | 18.56 | 18.56 | 6.06% | 557,900 |
| Aug 12, 2025 | 16.97 | 17.82 | 16.62 | 17.50 | 17.50 | 5.49% | 290,402 |
| Aug 11, 2025 | 16.00 | 16.62 | 15.64 | 16.59 | 16.59 | 3.69% | 1,453,429 |
| Aug 8, 2025 | 15.83 | 16.00 | 15.18 | 16.00 | 16.00 | 1.01% | 214,800 |
| Aug 7, 2025 | 17.06 | 17.57 | 15.81 | 15.84 | 15.84 | -5.26% | 371,732 |
| Aug 6, 2025 | 15.19 | 16.80 | 15.05 | 16.72 | 16.72 | 7.87% | 366,777 |
| Aug 5, 2025 | 15.66 | 16.06 | 15.45 | 15.50 | 15.50 | -0.70% | 359,644 |
| Aug 4, 2025 | 15.59 | 15.88 | 15.04 | 15.61 | 15.61 | 0.45% | 410,300 |
| Aug 1, 2025 | 14.78 | 15.60 | 14.21 | 15.54 | 15.54 | 1.50% | 514,108 |
| Jul 31, 2025 | 15.25 | 16.15 | 15.02 | 15.31 | 15.31 | 0.79% | 568,000 |
| Jul 30, 2025 | 14.13 | 15.47 | 13.99 | 15.19 | 15.19 | 8.73% | 868,715 |
| Jul 29, 2025 | 13.99 | 14.63 | 12.95 | 13.97 | 13.97 | -2.58% | 469,215 |
| Jul 28, 2025 | 13.73 | 15.27 | 13.59 | 14.34 | 14.34 | 5.21% | 760,748 |
| Jul 25, 2025 | 13.52 | 13.97 | 12.74 | 13.63 | 13.63 | 2.10% | 399,320 |
| Jul 24, 2025 | 11.54 | 13.60 | 11.44 | 13.35 | 13.35 | 15.78% | 674,111 |
| Jul 23, 2025 | 10.93 | 11.84 | 10.87 | 11.53 | 11.53 | 7.26% | 1,103,441 |
| Jul 22, 2025 | 10.59 | 11.15 | 10.54 | 10.75 | 10.75 | 1.03% | 281,400 |
| Jul 21, 2025 | 10.73 | 11.08 | 10.61 | 10.64 | 10.64 | -0.75% | 198,700 |
| Jul 18, 2025 | 11.11 | 11.36 | 10.63 | 10.72 | 10.72 | -2.90% | 225,700 |