5 DAY PERFORMANCE
+51.22%
1 MONTH PERFORMANCE
+15.64%
3 MONTH PERFORMANCE
+28.96%
6 MONTH PERFORMANCE
-7.04%
YEAR-TO-DATE PERFORMANCE
-70.31%
1 YEAR PERFORMANCE
-50.79%
Upstream Bio Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 09/21/2026 | $5.34 | $5.37 (0.56%) | $5.41 | $5.28 | 364.03 K | $290.30 M |
| 09/18/2026 | $5.32 | $5.34 (0.38%) | $5.41 | $5.21 | 1.00 M | $291.39 M |
| 09/17/2026 | $5.44 | $5.31 (-2.39%) | $5.48 | $5.24 | 533.90 K | $289.76 M |
| 09/16/2026 | $5.49 | $5.33 (-2.91%) | $5.54 | $5.27 | 497.24 K | $290.85 M |
| 09/15/2026 | $5.81 | $5.48 (-5.68%) | $5.81 | $5.45 | 421.30 K | $299.03 M |
| 09/14/2026 | $5.75 | $5.81 (1.04%) | $5.87 | $5.70 | 491.02 K | $317.04 M |
| 09/11/2026 | $5.84 | $5.73 (-1.88%) | $5.84 | $5.65 | 501.31 K | $312.67 M |
| 09/10/2026 | $5.86 | $5.75 (-1.88%) | $5.86 | $5.67 | 562.41 K | $313.77 M |
| 09/09/2026 | $6.14 | $5.96 (-2.93%) | $6.20 | $5.77 | 726.24 K | $325.23 M |
| 09/08/2026 | $6.01 | $6.19 (3%) | $6.21 | $5.77 | 952.24 K | $337.78 M |
| 09/04/2026 | $6.00 | $6.01 (0.17%) | $6.23 | $5.97 | 643.27 K | $327.95 M |
| 09/03/2026 | $6.49 | $6.08 (-6.32%) | $6.49 | $5.77 | 1.35 M | $331.77 M |
| 09/02/2026 | $6.62 | $6.48 (-2.11%) | $6.98 | $6.41 | 515.76 K | $353.60 M |
| 09/01/2026 | $6.58 | $6.55 (-0.46%) | $6.72 | $6.50 | 476.50 K | $357.42 M |
| 08/31/2026 | $6.64 | $6.62 (-0.3%) | $6.77 | $6.44 | 895.01 K | $361.24 M |
| 08/28/2026 | $6.71 | $6.69 (-0.3%) | $6.79 | $6.60 | 445.50 K | $365.06 M |
| 08/27/2026 | $7.11 | $6.79 (-4.5%) | $7.14 | $6.78 | 335.10 K | $370.52 M |
| 08/26/2026 | $7.18 | $7.13 (-0.7%) | $7.31 | $6.90 | 432.93 K | $389.07 M |
| 08/25/2026 | $6.68 | $7.18 (7.49%) | $7.18 | $6.55 | 554.42 K | $391.80 M |
| 08/24/2026 | $7.00 | $6.61 (-5.57%) | $7.11 | $6.46 | 538.55 K | $360.69 M |
| 08/21/2026 | $6.91 | $6.97 (0.87%) | $7.01 | $6.85 | 434.24 K | $380.34 M |
| 08/20/2026 | $7.48 | $6.85 (-8.42%) | $7.56 | $6.75 | 592.94 K | $373.79 M |
| 08/19/2026 | $7.04 | $7.52 (6.82%) | $7.53 | $6.91 | 574.18 K | $410.35 M |
| 08/18/2026 | $7.28 | $6.85 (-5.91%) | $7.44 | $6.73 | 461.78 K | $373.79 M |
| 08/17/2026 | $7.02 | $7.14 (1.71%) | $7.19 | $6.86 | 852.44 K | $389.62 M |
| 08/14/2026 | $6.95 | $7.07 (1.73%) | $7.14 | $6.80 | 688.25 K | $385.80 M |
| 08/13/2026 | $7.02 | $6.91 (-1.57%) | $7.04 | $6.87 | 378.84 K | $377.06 M |
| 08/12/2026 | $7.00 | $6.91 (-1.29%) | $7.25 | $6.84 | 635.22 K | $377.06 M |
| 08/11/2026 | $7.48 | $7.09 (-5.21%) | $7.70 | $7.01 | 628.10 K | $386.89 M |
| 08/10/2026 | $7.32 | $7.44 (1.64%) | $7.62 | $7.20 | 869.60 K | $405.99 M |
| 08/07/2026 | $6.94 | $7.25 (4.47%) | $7.26 | $6.89 | 621.85 K | $395.62 M |
| 08/06/2026 | $6.75 | $6.87 (1.78%) | $7.17 | $6.66 | 427.20 K | $373.26 M |
| 08/05/2026 | $6.77 | $6.74 (-0.44%) | $6.88 | $6.58 | 917.31 K | $366.20 M |
| 08/04/2026 | $6.40 | $6.79 (6.09%) | $6.92 | $6.40 | 1.36 M | $368.92 M |
| 08/03/2026 | $6.31 | $6.42 (1.74%) | $6.43 | $6.18 | 774.30 K | $348.81 M |
| 07/31/2026 | $6.58 | $6.31 (-4.1%) | $6.69 | $6.29 | 297.71 K | $342.84 M |
| 07/30/2026 | $6.35 | $6.57 (3.46%) | $6.67 | $6.29 | 320.72 K | $356.96 M |
| 07/29/2026 | $6.39 | $6.41 (0.31%) | $6.48 | $6.21 | 702.80 K | $348.27 M |
| 07/28/2026 | $6.40 | $6.40 (0%) | $6.54 | $6.09 | 433.23 K | $347.73 M |
| 07/27/2026 | $6.47 | $6.40 (-1.08%) | $6.60 | $6.26 | 459.50 K | $347.73 M |
| 07/24/2026 | $6.40 | $6.41 (0.16%) | $6.61 | $6.16 | 626.43 K | $348.27 M |
| 07/23/2026 | $6.46 | $6.40 (-0.93%) | $6.59 | $6.32 | 626.15 K | $347.73 M |
| 07/22/2026 | $6.95 | $6.59 (-5.18%) | $6.99 | $6.47 | 704.55 K | $358.05 M |
| 07/21/2026 | $6.92 | $6.98 (0.87%) | $7.08 | $6.86 | 341.00 K | $379.24 M |
| 07/20/2026 | $6.99 | $6.98 (-0.14%) | $7.15 | $6.80 | 458.00 K | $379.24 M |
| 07/17/2026 | $7.08 | $7.01 (-0.99%) | $7.30 | $6.90 | 378.03 K | $380.87 M |
| 07/16/2026 | $7.24 | $7.23 (-0.14%) | $7.34 | $6.98 | 561.20 K | $392.82 M |
| 07/15/2026 | $7.12 | $7.27 (2.11%) | $7.32 | $7.08 | 332.11 K | $395.00 M |
| 07/14/2026 | $7.28 | $7.14 (-1.92%) | $7.34 | $7.00 | 344.70 K | $387.93 M |
| 07/13/2026 | $7.47 | $7.28 (-2.54%) | $7.53 | $7.02 | 266.14 K | $395.54 M |
| 07/10/2026 | $7.81 | $7.53 (-3.59%) | $7.81 | $7.28 | 341.72 K | $409.12 M |
| 07/09/2026 | $7.98 | $7.81 (-2.13%) | $8.00 | $7.57 | 467.54 K | $424.34 M |
| 07/08/2026 | $7.73 | $7.98 (3.23%) | $8.00 | $7.53 | 635.11 K | $433.57 M |
| 07/07/2026 | $7.48 | $7.86 (5.08%) | $8.00 | $7.32 | 809.50 K | $427.05 M |
| 07/06/2026 | $7.50 | $7.40 (-1.33%) | $7.59 | $7.34 | 357.01 K | $402.06 M |
| 07/02/2026 | $7.31 | $7.51 (2.74%) | $7.72 | $7.16 | 363.21 K | $408.04 M |
| 07/01/2026 | $6.90 | $7.28 (5.51%) | $7.42 | $6.81 | 561.00 K | $395.54 M |
| 06/30/2026 | $6.94 | $6.92 (-0.29%) | $7.38 | $6.88 | 557.82 K | $375.98 M |
| 06/29/2026 | $6.77 | $6.93 (2.36%) | $7.00 | $6.56 | 662.70 K | $376.52 M |
| 06/26/2026 | $6.36 | $6.75 (6.13%) | $6.78 | $6.35 | 1.31 M | $366.74 M |
| 06/25/2026 | $6.32 | $6.36 (0.63%) | $6.57 | $6.28 | 469.90 K | $345.55 M |
| 06/24/2026 | $6.35 | $6.35 (0%) | $6.71 | $6.32 | 654.60 K | $345.01 M |
| 06/23/2026 | $6.26 | $6.32 (0.96%) | $6.54 | $6.24 | 623.90 K | $343.38 M |
| 06/22/2026 | $6.33 | $6.30 (-0.47%) | $6.60 | $6.25 | 849.29 K | $342.29 M |
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