Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
2.780
-0.080 (-2.80%)
Nov 13, 2026, 4:00 PM EST - Market closed
Upstream Bio Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 13, 2026 | 2.86 | 2.98 | 2.73 | 2.78 | 2.78 | -2.80% | 891,334 |
| Nov 12, 2026 | 3.13 | 3.13 | 2.80 | 2.86 | 2.86 | -10.63% | 2,528,638 |
| Nov 11, 2026 | 3.38 | 3.46 | 3.13 | 3.20 | 3.20 | -5.33% | 1,318,902 |
| Nov 10, 2026 | 3.52 | 3.66 | 3.24 | 3.38 | 3.38 | -5.59% | 1,175,023 |
| Nov 9, 2026 | 3.23 | 3.60 | 3.17 | 3.58 | 3.58 | 10.84% | 1,983,553 |
| Nov 6, 2026 | 3.24 | 3.28 | 3.02 | 3.23 | 3.23 | 0.62% | 1,139,878 |
| Nov 5, 2026 | 3.64 | 3.68 | 3.00 | 3.21 | 3.21 | -13.24% | 1,066,482 |
| Nov 4, 2026 | 3.59 | 3.84 | 3.52 | 3.70 | 3.70 | 9.14% | 1,246,872 |
| Nov 3, 2026 | 3.36 | 3.53 | 3.31 | 3.39 | 3.39 | 1.19% | 978,510 |
| Nov 2, 2026 | 3.42 | 3.46 | 3.16 | 3.35 | 3.35 | -1.76% | 936,309 |
| Oct 30, 2026 | 3.26 | 3.43 | 3.15 | 3.41 | 3.41 | 4.28% | 946,124 |
| Oct 29, 2026 | 3.00 | 3.32 | 2.97 | 3.27 | 3.27 | 9.73% | 1,179,150 |
| Oct 28, 2026 | 2.78 | 2.99 | 2.68 | 2.98 | 2.98 | 6.81% | 1,323,093 |
| Oct 27, 2026 | 2.76 | 2.94 | 2.68 | 2.79 | 2.79 | 1.45% | 1,179,621 |
| Oct 26, 2026 | 2.75 | 2.97 | 2.72 | 2.75 | 2.75 | 0.36% | 983,844 |
| Oct 23, 2026 | 2.95 | 2.96 | 2.70 | 2.74 | 2.74 | -8.36% | 1,051,217 |
| Oct 22, 2026 | 2.77 | 2.99 | 2.70 | 2.99 | 2.99 | 6.79% | 1,450,028 |
| Oct 21, 2026 | 2.83 | 2.98 | 2.77 | 2.80 | 2.80 | -0.71% | 1,410,488 |
| Oct 20, 2026 | 2.79 | 3.09 | 2.78 | 2.82 | 2.82 | 0.71% | 1,676,022 |
| Oct 19, 2026 | 2.76 | 3.07 | 2.75 | 2.80 | 2.80 | 1.45% | 1,603,699 |
| Oct 16, 2026 | 3.39 | 3.39 | 2.74 | 2.76 | 2.76 | -18.10% | 1,836,415 |
| Oct 15, 2026 | 3.44 | 3.56 | 3.29 | 3.37 | 3.37 | -1.46% | 1,285,463 |
| Oct 14, 2026 | 3.48 | 3.60 | 3.29 | 3.42 | 3.42 | -3.66% | 1,574,473 |
| Oct 13, 2026 | 4.14 | 4.16 | 3.52 | 3.55 | 3.55 | -14.87% | 1,037,523 |
| Oct 12, 2026 | 4.68 | 4.72 | 4.12 | 4.17 | 4.17 | -11.28% | 848,408 |
| Oct 9, 2026 | 4.54 | 4.76 | 4.51 | 4.70 | 4.70 | 3.30% | 1,187,830 |
| Oct 8, 2026 | 4.53 | 4.65 | 4.37 | 4.55 | 4.55 | -1.30% | 2,857,189 |
| Oct 7, 2026 | 4.55 | 4.72 | 4.50 | 4.61 | 4.61 | 0.44% | 908,403 |
| Oct 6, 2026 | 4.84 | 4.87 | 4.53 | 4.59 | 4.59 | -5.36% | 1,062,306 |
| Oct 5, 2026 | 5.07 | 5.10 | 4.67 | 4.85 | 4.85 | -3.77% | 1,010,578 |
| Oct 2, 2026 | 5.12 | 5.21 | 4.86 | 5.04 | 5.04 | - | 956,519 |
| Oct 1, 2026 | 5.25 | 5.35 | 4.98 | 5.04 | 5.04 | -4.36% | 832,377 |
| Sep 30, 2026 | 5.23 | 5.46 | 5.15 | 5.27 | 5.27 | 1.54% | 851,221 |
| Sep 29, 2026 | 5.28 | 5.31 | 4.99 | 5.19 | 5.19 | -2.08% | 784,211 |
| Sep 28, 2026 | 5.34 | 5.39 | 5.12 | 5.30 | 5.30 | -1.12% | 615,402 |
| Sep 25, 2026 | 5.20 | 5.39 | 5.07 | 5.36 | 5.36 | 3.68% | 429,212 |
| Sep 24, 2026 | 5.19 | 5.20 | 5.05 | 5.17 | 5.17 | -0.39% | 566,581 |
| Sep 23, 2026 | 5.48 | 5.49 | 4.99 | 5.19 | 5.19 | -5.46% | 552,994 |
| Sep 22, 2026 | 5.44 | 5.56 | 5.38 | 5.49 | 5.49 | 2.33% | 360,533 |
| Sep 21, 2026 | 5.42 | 5.44 | 5.27 | 5.37 | 5.37 | 0.47% | 364,035 |
| Sep 18, 2026 | 5.32 | 5.41 | 5.21 | 5.34 | 5.34 | 0.56% | 1,000,981 |
| Sep 17, 2026 | 5.44 | 5.48 | 5.24 | 5.31 | 5.31 | -0.38% | 533,871 |
| Sep 16, 2026 | 5.49 | 5.54 | 5.27 | 5.33 | 5.33 | -2.74% | 497,239 |
| Sep 15, 2026 | 5.81 | 5.81 | 5.46 | 5.48 | 5.48 | -5.68% | 421,265 |
| Sep 14, 2026 | 5.75 | 5.87 | 5.70 | 5.81 | 5.81 | 1.40% | 491,023 |
| Sep 11, 2026 | 5.84 | 5.84 | 5.65 | 5.73 | 5.73 | -0.35% | 501,306 |
| Sep 10, 2026 | 5.86 | 5.86 | 5.67 | 5.75 | 5.75 | -3.52% | 562,410 |
| Sep 9, 2026 | 6.14 | 6.20 | 5.77 | 5.96 | 5.96 | -3.72% | 726,236 |
| Sep 8, 2026 | 6.01 | 6.21 | 5.77 | 6.19 | 6.19 | 3.00% | 952,239 |
| Sep 4, 2026 | 6.00 | 6.23 | 5.97 | 6.01 | 6.01 | -1.15% | 643,266 |