NASDAQ : UPB
Upstream Bio, Inc. — Price history
Healthcare · Biotechnology · United States
Last price 3.27 USD (Oct 29, 2026, 4:00 PM EDT) · Market cap 179.10M
Overview · Financial statements · Key statistics · Dividends · Company profile · Price history · Reports
Price history
Upstream Bio, Inc. (UPB) closed at 3.21 USD on 2026-11-02. Daily open, high, low, close and volume for recent sessions:
| Date | Open | High | Low | Close | Volume | Change |
|---|---|---|---|---|---|---|
| 2026-11-02 | 3.42 | 3.42 | 3.17 | 3.21 | 260,194 | -5.87% |
| 2026-10-30 | 3.26 | 3.425 | 3.15 | 3.41 | 946,124 | +4.28% |
| 2026-10-29 | 3 | 3.32 | 2.97 | 3.27 | 1,179,150 | +9.73% |
| 2026-10-28 | 2.78 | 2.99 | 2.68 | 2.98 | 1,323,093 | +6.81% |
| 2026-10-27 | 2.76 | 2.935 | 2.68 | 2.79 | 1,179,621 | +1.45% |
| 2026-10-26 | 2.75 | 2.97 | 2.72 | 2.75 | 983,844 | +0.36% |
| 2026-10-23 | 2.95 | 2.96 | 2.695 | 2.74 | 1,051,217 | -8.36% |
| 2026-10-22 | 2.77 | 2.99 | 2.7 | 2.99 | 1,450,028 | +6.79% |
| 2026-10-21 | 2.83 | 2.975 | 2.765 | 2.8 | 1,410,488 | -0.71% |
| 2026-10-20 | 2.79 | 3.09 | 2.78 | 2.82 | 1,676,022 | +0.71% |
| 2026-10-19 | 2.76 | 3.07 | 2.75 | 2.8 | 1,603,699 | +1.45% |
| 2026-10-16 | 3.39 | 3.39 | 2.74 | 2.76 | 1,836,415 | -18.10% |
| 2026-10-15 | 3.44 | 3.555 | 3.285 | 3.37 | 1,285,463 | -1.46% |
| 2026-10-14 | 3.475 | 3.6 | 3.29 | 3.42 | 1,574,473 | -3.66% |
| 2026-10-13 | 4.14 | 4.155 | 3.52 | 3.55 | 1,037,523 | -14.87% |
| 2026-10-12 | 4.68 | 4.72 | 4.12 | 4.17 | 848,408 | -11.28% |
| 2026-10-09 | 4.54 | 4.76 | 4.51 | 4.7 | 1,187,830 | +3.30% |
| 2026-10-08 | 4.53 | 4.65 | 4.365 | 4.55 | 2,857,189 | -1.30% |
| 2026-10-07 | 4.55 | 4.72 | 4.5 | 4.61 | 908,403 | +0.44% |
| 2026-10-06 | 4.84 | 4.865 | 4.53 | 4.59 | 1,062,306 | -5.36% |
| 2026-10-05 | 5.07 | 5.1 | 4.665 | 4.85 | 1,010,578 | -3.77% |
| 2026-10-02 | 5.12 | 5.21 | 4.86 | 5.04 | 956,519 | +0.00% |
| 2026-10-01 | 5.25 | 5.345 | 4.98 | 5.04 | 832,377 | -4.36% |
| 2026-09-30 | 5.23 | 5.455 | 5.145 | 5.27 | 851,221 | +1.54% |
| 2026-09-29 | 5.28 | 5.305 | 4.99 | 5.19 | 784,211 | -2.08% |
| 2026-09-28 | 5.34 | 5.385 | 5.12 | 5.3 | 615,402 | -1.12% |
| 2026-09-25 | 5.2 | 5.39 | 5.07 | 5.36 | 429,212 | +3.68% |
| 2026-09-24 | 5.19 | 5.2 | 5.045 | 5.17 | 566,581 | -0.39% |
| 2026-09-23 | 5.48 | 5.49 | 4.985 | 5.19 | 552,994 | -5.46% |
| 2026-09-22 | 5.44 | 5.56 | 5.38 | 5.49 | 360,533 | +2.33% |
| 2026-09-21 | 5.42 | 5.44 | 5.27 | 5.365 | 364,035 | +0.47% |
| 2026-09-18 | 5.32 | 5.41 | 5.21 | 5.34 | 1,000,981 | +0.56% |
| 2026-09-17 | 5.44 | 5.48 | 5.235 | 5.31 | 533,871 | -0.38% |
| 2026-09-16 | 5.49 | 5.54 | 5.27 | 5.33 | 497,239 | -2.74% |
| 2026-09-15 | 5.81 | 5.81 | 5.455 | 5.48 | 421,265 | -5.68% |
| 2026-09-14 | 5.75 | 5.87 | 5.7 | 5.81 | 491,023 | +1.40% |
| 2026-09-11 | 5.84 | 5.84 | 5.65 | 5.73 | 501,306 | -0.35% |
| 2026-09-10 | 5.86 | 5.86 | 5.67 | 5.75 | 562,410 | -3.52% |
| 2026-09-09 | 6.14 | 6.2 | 5.77 | 5.96 | 726,236 | -3.72% |
| 2026-09-08 | 6.01 | 6.21 | 5.77 | 6.19 | 952,239 | +3.00% |
| 2026-09-04 | 6 | 6.23 | 5.965 | 6.01 | 643,266 | -1.15% |
| 2026-09-03 | 6.49 | 6.49 | 5.77 | 6.08 | 1,351,772 | -6.17% |
| 2026-09-02 | 6.62 | 6.98 | 6.41 | 6.48 | 515,754 | -1.07% |
| 2026-09-01 | 6.58 | 6.72 | 6.5 | 6.55 | 476,486 | -1.06% |
| 2026-08-31 | 6.64 | 6.77 | 6.44 | 6.62 | 895,008 | -1.05% |
| 2026-08-28 | 6.71 | 6.79 | 6.6 | 6.69 | 445,476 | -1.47% |
| 2026-08-27 | 7.11 | 7.14 | 6.78 | 6.79 | 335,062 | -4.77% |
| 2026-08-26 | 7.18 | 7.31 | 6.9 | 7.13 | 432,931 | -0.70% |
| 2026-08-25 | 6.68 | 7.18 | 6.55 | 7.18 | 554,420 | +8.62% |
| 2026-08-24 | 7 | 7.11 | 6.46 | 6.61 | 538,545 | -5.16% |
| 2026-08-21 | 6.91 | 7.006 | 6.85 | 6.97 | 434,241 | +1.75% |
| 2026-08-20 | 7.48 | 7.555 | 6.745 | 6.85 | 592,938 | -8.85% |
| 2026-08-19 | 7.04 | 7.53 | 6.91 | 7.515 | 574,178 | +9.71% |
| 2026-08-18 | 7.28 | 7.435 | 6.73 | 6.85 | 461,779 | -4.06% |
| 2026-08-17 | 7.02 | 7.19 | 6.86 | 7.14 | 852,441 | +0.99% |
| 2026-08-14 | 6.95 | 7.14 | 6.8 | 7.07 | 688,249 | +2.32% |
| 2026-08-13 | 7.02 | 7.04 | 6.87 | 6.91 | 378,835 | +0.00% |
| 2026-08-12 | 7 | 7.25 | 6.84 | 6.91 | 635,221 | -2.54% |
| 2026-08-11 | 7.48 | 7.7 | 7.01 | 7.09 | 628,055 | -4.70% |
| 2026-08-10 | 7.32 | 7.62 | 7.2 | 7.44 | 869,591 | +2.62% |
| 2026-08-07 | 6.94 | 7.26 | 6.89 | 7.25 | 621,845 | +5.53% |
| 2026-08-06 | 6.75 | 7.166 | 6.66 | 6.87 | 427,171 | +1.93% |
| 2026-08-05 | 6.77 | 6.88 | 6.58 | 6.74 | 917,311 | -0.74% |
| 2026-08-04 | 6.4 | 6.915 | 6.4 | 6.79 | 1,362,497 | +5.76% |
| 2026-08-03 | 6.31 | 6.43 | 6.175 | 6.42 | 774,290 | +1.74% |
| 2026-07-31 | 6.58 | 6.688 | 6.29 | 6.31 | 297,714 | -3.96% |
| 2026-07-30 | 6.35 | 6.665 | 6.29 | 6.57 | 320,722 | +2.50% |
| 2026-07-29 | 6.39 | 6.48 | 6.21 | 6.41 | 702,778 | +0.16% |
| 2026-07-28 | 6.4 | 6.54 | 6.09 | 6.4 | 433,233 | +0.00% |
| 2026-07-27 | 6.47 | 6.6 | 6.26 | 6.4 | 459,477 | -0.16% |
| 2026-07-24 | 6.4 | 6.61 | 6.16 | 6.41 | 626,431 | +0.16% |
| 2026-07-23 | 6.46 | 6.59 | 6.32 | 6.4 | 626,145 | -2.88% |
| 2026-07-22 | 6.95 | 6.99 | 6.47 | 6.59 | 704,553 | -5.59% |
| 2026-07-21 | 6.92 | 7.08 | 6.86 | 6.98 | 340,980 | +0.00% |
| 2026-07-20 | 6.99 | 7.145 | 6.8 | 6.98 | 457,973 | -0.43% |
| 2026-07-17 | 7.08 | 7.3 | 6.9 | 7.01 | 378,032 | -3.04% |
| 2026-07-16 | 7.24 | 7.34 | 6.98 | 7.23 | 561,160 | -0.55% |
| 2026-07-15 | 7.12 | 7.32 | 7.08 | 7.27 | 332,111 | +1.82% |
| 2026-07-14 | 7.28 | 7.34 | 7 | 7.14 | 344,693 | -1.92% |
| 2026-07-13 | 7.47 | 7.525 | 7.02 | 7.28 | 266,138 | -3.32% |
| 2026-07-10 | 7.81 | 7.81 | 7.28 | 7.53 | 341,716 | -3.59% |
| 2026-07-09 | 7.98 | 8 | 7.57 | 7.81 | 467,536 | -2.13% |
| 2026-07-08 | 7.73 | 8 | 7.53 | 7.98 | 635,113 | +1.53% |
| 2026-07-07 | 7.48 | 8 | 7.32 | 7.86 | 809,452 | +6.22% |
| 2026-07-06 | 7.5 | 7.591 | 7.34 | 7.4 | 357,006 | -1.46% |
| 2026-07-02 | 7.31 | 7.72 | 7.164 | 7.51 | 363,212 | +3.16% |
| 2026-07-01 | 6.9 | 7.42 | 6.81 | 7.28 | 560,983 | +5.20% |
| 2026-06-30 | 6.94 | 7.38 | 6.88 | 6.92 | 557,817 | -0.14% |
| 2026-06-29 | 6.77 | 7 | 6.56 | 6.93 | 662,668 | +2.67% |
| 2026-06-26 | 6.36 | 6.78 | 6.35 | 6.75 | 1,311,206 | +6.13% |
| 2026-06-25 | 6.32 | 6.57 | 6.28 | 6.36 | 469,883 | +0.16% |
| 2026-06-24 | 6.35 | 6.71 | 6.32 | 6.35 | 654,584 | +0.47% |
| 2026-06-23 | 6.26 | 6.54 | 6.24 | 6.32 | 623,889 | +0.32% |
| 2026-06-22 | 6.33 | 6.6 | 6.25 | 6.3 | 849,285 | +0.80% |
| 2026-06-18 | 6.26 | 6.52 | 6.145 | 6.25 | 829,656 | +1.63% |
| 2026-06-17 | 5.94 | 6.33 | 5.88 | 6.15 | 839,752 | +3.89% |
| 2026-06-16 | 6.1 | 6.185 | 5.86 | 5.92 | 519,892 | -2.95% |
| 2026-06-15 | 6.19 | 6.28 | 6.01 | 6.1 | 681,422 | +0.00% |
| 2026-06-12 | 6.03 | 6.47 | 5.85 | 6.1 | 1,432,201 | -4.39% |
| 2026-06-11 | 6.28 | 6.4 | 6.11 | 6.38 | 833,518 | +1.59% |
| 2026-06-10 | 6.64 | 6.801 | 6.25 | 6.28 | 450,141 | -6.13% |
| 2026-06-09 | 6.53 | 6.78 | 6.415 | 6.69 | 500,530 | +3.72% |
| 2026-06-08 | 7.16 | 7.16 | 6.405 | 6.45 | 783,894 | -8.51% |
| 2026-06-05 | 7.39 | 7.45 | 6.98 | 7.05 | 672,556 | -5.11% |
| 2026-06-04 | 7.68 | 7.78 | 7.3 | 7.43 | 688,230 | -2.62% |
| 2026-06-03 | 7.52 | 7.86 | 7.4 | 7.63 | 666,450 | +5.24% |
| 2026-06-02 | 7.96 | 7.96 | 7.185 | 7.25 | 632,620 | -10.27% |
| 2026-06-01 | 8.33 | 8.64 | 7.99 | 8.08 | 595,101 | -3.35% |
| 2026-05-29 | 8.31 | 8.5 | 8.165 | 8.36 | 499,059 | +0.48% |
| 2026-05-28 | 8.24 | 8.375 | 8.13 | 8.32 | 320,853 | +0.73% |
| 2026-05-27 | 8.19 | 8.55 | 8.185 | 8.26 | 420,408 | +0.61% |
| 2026-05-26 | 8.44 | 8.45 | 8.105 | 8.21 | 593,003 | -1.91% |
| 2026-05-22 | 8.47 | 8.69 | 8.33 | 8.37 | 354,422 | -1.06% |
| 2026-05-21 | 8.35 | 8.595 | 8.25 | 8.46 | 597,559 | +0.59% |
| 2026-05-20 | 8.02 | 8.56 | 7.99 | 8.41 | 593,025 | +4.73% |
| 2026-05-19 | 8.42 | 8.64 | 8.02 | 8.03 | 982,600 | -5.64% |
| 2026-05-18 | 8.97 | 9.13 | 8.124 | 8.51 | 511,345 | -6.38% |
| 2026-05-15 | 8.59 | 9.14 | 8.55 | 9.09 | 979,925 | +3.41% |
| 2026-05-14 | 9.45 | 9.518 | 8.505 | 8.79 | 568,869 | -6.09% |
| 2026-05-13 | 8.96 | 9.465 | 8.8 | 9.36 | 815,600 | +4.58% |