5 DAY PERFORMANCE
-7.66%
1 MONTH PERFORMANCE
-73.94%
3 MONTH PERFORMANCE
-67.63%
6 MONTH PERFORMANCE
-50.61%
YEAR-TO-DATE PERFORMANCE
-70.24%
1 YEAR PERFORMANCE
-1.82%
Upstream Bio Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 02/20/2026 | $8.41 | $8.08 (-3.92%) | $8.69 | $8.01 | 3.59 M | $435.76 M |
| 02/19/2026 | $8.32 | $8.54 (2.64%) | $8.73 | $8.14 | 1.92 M | $460.57 M |
| 02/18/2026 | $8.18 | $8.29 (1.34%) | $8.66 | $7.93 | 2.89 M | $447.09 M |
| 02/17/2026 | $8.69 | $8.33 (-4.14%) | $9.00 | $7.96 | 6.03 M | $449.24 M |
| 02/13/2026 | $12.69 | $8.75 (-31.05%) | $12.69 | $8.52 | 6.50 M | $471.90 M |
| 02/12/2026 | $14.86 | $12.80 (-13.86%) | $14.86 | $12.75 | 3.88 M | $690.32 M |
| 02/11/2026 | $19.00 | $14.69 (-22.68%) | $20.01 | $12.65 | 8.85 M | $792.25 M |
| 02/10/2026 | $26.10 | $27.81 (6.55%) | $28.58 | $25.93 | 800.80 K | $1.50 B |
| 02/09/2026 | $26.24 | $26.12 (-0.46%) | $26.24 | $25.16 | 509.70 K | $1.41 B |
| 02/06/2026 | $26.56 | $26.20 (-1.36%) | $27.98 | $25.94 | 517.91 K | $1.41 B |
| 02/05/2026 | $29.40 | $26.00 (-11.56%) | $30.31 | $25.87 | 619.51 K | $1.40 B |
| 02/04/2026 | $30.88 | $29.38 (-4.86%) | $30.88 | $28.35 | 610.50 K | $1.58 B |
| 02/03/2026 | $30.38 | $30.79 (1.35%) | $31.05 | $29.82 | 635.74 K | $1.66 B |
| 02/02/2026 | $31.10 | $29.94 (-3.73%) | $32.38 | $29.64 | 783.10 K | $1.61 B |
| 01/30/2026 | $30.64 | $31.08 (1.44%) | $31.37 | $29.71 | 667.53 K | $1.68 B |
| 01/29/2026 | $30.30 | $30.94 (2.11%) | $31.12 | $29.61 | 459.68 K | $1.67 B |
| 01/28/2026 | $32.50 | $30.43 (-6.37%) | $32.50 | $29.99 | 658.14 K | $1.64 B |
| 01/27/2026 | $30.24 | $32.50 (7.47%) | $32.83 | $30.13 | 1.07 M | $1.75 B |
| 01/26/2026 | $29.77 | $30.16 (1.31%) | $30.91 | $29.76 | 545.75 K | $1.63 B |
| 01/23/2026 | $31.62 | $30.02 (-5.06%) | $31.62 | $29.83 | 371.10 K | $1.62 B |
| 01/22/2026 | $31.74 | $31.79 (0.16%) | $32.52 | $31.70 | 402.50 K | $1.71 B |
| 01/21/2026 | $30.95 | $31.59 (2.07%) | $32.14 | $30.31 | 468.40 K | $1.70 B |
| 01/20/2026 | $30.22 | $31.00 (2.58%) | $31.52 | $29.08 | 774.10 K | $1.67 B |
| 01/16/2026 | $31.06 | $31.00 (-0.19%) | $31.64 | $29.80 | 418.42 K | $1.67 B |
| 01/15/2026 | $32.42 | $30.90 (-4.69%) | $32.42 | $30.74 | 718.90 K | $1.67 B |
| 01/14/2026 | $32.68 | $32.30 (-1.16%) | $33.68 | $31.95 | 621.00 K | $1.74 B |
| 01/13/2026 | $31.71 | $32.60 (2.81%) | $32.66 | $30.48 | 834.72 K | $1.76 B |
| 01/12/2026 | $29.73 | $31.66 (6.49%) | $31.93 | $29.34 | 679.00 K | $1.71 B |
| 01/09/2026 | $27.87 | $29.75 (6.75%) | $30.60 | $27.87 | 851.46 K | $1.60 B |
| 01/08/2026 | $27.71 | $27.54 (-0.61%) | $28.49 | $27.22 | 502.76 K | $1.48 B |
| 01/07/2026 | $26.08 | $28.08 (7.67%) | $28.16 | $26.08 | 700.32 K | $1.51 B |
| 01/06/2026 | $25.93 | $25.87 (-0.23%) | $26.52 | $25.00 | 452.82 K | $1.39 B |
| 01/05/2026 | $27.07 | $26.13 (-3.47%) | $27.39 | $25.25 | 689.80 K | $1.41 B |
| 01/02/2026 | $27.30 | $27.07 (-0.84%) | $28.01 | $26.72 | 586.44 K | $1.46 B |
| 12/31/2025 | $27.17 | $27.15 (-0.07%) | $27.58 | $26.86 | 517.85 K | $1.46 B |
| 12/30/2025 | $28.77 | $27.32 (-5.04%) | $28.77 | $26.86 | 831.50 K | $1.47 B |
| 12/29/2025 | $29.48 | $28.83 (-2.2%) | $29.92 | $28.70 | 238.34 K | $1.55 B |
| 12/26/2025 | $30.11 | $29.48 (-2.09%) | $30.11 | $29.10 | 228.01 K | $1.59 B |
| 12/24/2025 | $29.65 | $30.27 (2.09%) | $30.76 | $29.60 | 266.50 K | $1.63 B |
| 12/23/2025 | $30.27 | $29.21 (-3.5%) | $30.76 | $29.05 | 347.23 K | $1.57 B |
| 12/22/2025 | $29.29 | $30.43 (3.89%) | $30.89 | $29.00 | 701.40 K | $1.64 B |
| 12/19/2025 | $30.01 | $29.35 (-2.2%) | $30.56 | $29.19 | 1.46 M | $1.58 B |
| 12/18/2025 | $29.09 | $29.86 (2.65%) | $30.27 | $28.36 | 795.90 K | $1.61 B |
| 12/17/2025 | $29.41 | $28.33 (-3.67%) | $29.95 | $28.15 | 439.70 K | $1.52 B |
| 12/16/2025 | $26.92 | $29.32 (8.92%) | $29.73 | $26.03 | 932.30 K | $1.58 B |
| 12/15/2025 | $27.56 | $27.20 (-1.31%) | $27.95 | $26.68 | 1.17 M | $1.46 B |
| 12/12/2025 | $28.00 | $27.14 (-3.07%) | $28.25 | $26.78 | 305.42 K | $1.46 B |
| 12/11/2025 | $28.72 | $27.47 (-4.35%) | $29.51 | $27.16 | 661.77 K | $1.48 B |
| 12/10/2025 | $28.37 | $28.67 (1.06%) | $29.55 | $27.93 | 342.30 K | $1.54 B |
| 12/09/2025 | $28.73 | $28.37 (-1.25%) | $29.17 | $27.99 | 403.43 K | $1.53 B |
| 12/08/2025 | $28.03 | $28.97 (3.35%) | $29.50 | $27.91 | 345.16 K | $1.56 B |
| 12/05/2025 | $27.82 | $27.75 (-0.25%) | $28.43 | $27.00 | 399.90 K | $1.49 B |
| 12/04/2025 | $26.69 | $27.74 (3.93%) | $28.45 | $26.69 | 568.50 K | $1.49 B |
| 12/03/2025 | $25.01 | $26.97 (7.84%) | $27.15 | $24.94 | 497.30 K | $1.45 B |
| 12/02/2025 | $29.61 | $25.01 (-15.54%) | $29.89 | $24.61 | 839.18 K | $1.34 B |
| 12/01/2025 | $28.32 | $28.98 (2.33%) | $29.08 | $28.07 | 418.30 K | $1.56 B |
| 11/28/2025 | $28.14 | $28.60 (1.63%) | $28.89 | $28.06 | 145.02 K | $1.54 B |
| 11/26/2025 | $29.12 | $28.00 (-3.85%) | $33.00 | $27.90 | 509.42 K | $1.51 B |
| 11/25/2025 | $26.22 | $28.83 (9.95%) | $29.29 | $25.84 | 683.40 K | $1.55 B |
| 11/24/2025 | $25.35 | $26.05 (2.76%) | $26.99 | $25.32 | 1.26 M | $1.40 B |
| 11/21/2025 | $24.71 | $25.55 (3.4%) | $26.10 | $24.12 | 384.50 K | $1.37 B |
| 11/20/2025 | $25.37 | $24.96 (-1.62%) | $26.19 | $24.75 | 402.30 K | $1.34 B |
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