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Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
8.45
0.00 (0.00%)
At close: Mar 24, 2026, 4:00 PM EDT
8.61
+0.16 (1.89%)
After-hours: Mar 24, 2026, 7:31 PM EDT

Upstream Bio Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Mar 24, 20268.358.628.128.458.45-699,711
Mar 23, 20268.719.038.438.458.45-2.54%743,215
Mar 20, 20268.388.688.168.678.673.46%3,020,209
Mar 19, 20268.448.638.238.388.38-3.29%733,628
Mar 18, 20269.589.708.668.678.67-10.76%719,494
Mar 17, 20269.589.909.179.719.711.04%914,396
Mar 16, 20269.299.689.279.619.614.12%663,291
Mar 13, 20269.329.768.939.239.23-2.17%723,097
Mar 12, 20269.279.478.709.449.440.80%1,135,699
Mar 11, 20268.169.378.169.369.3615.27%1,689,779
Mar 10, 20268.158.367.998.128.120.74%652,378
Mar 9, 20267.658.097.648.068.065.22%1,189,764
Mar 6, 20267.477.777.407.667.66-0.13%662,851
Mar 5, 20267.647.787.407.677.67-1.67%941,663
Mar 4, 20267.378.017.337.807.805.98%1,151,748
Mar 3, 20267.597.647.257.367.36-4.42%977,262
Mar 2, 20267.517.927.467.707.700.26%1,655,280
Feb 27, 20267.878.077.627.687.68-2.78%1,436,021
Feb 26, 20267.748.327.707.907.902.07%1,497,001
Feb 25, 20267.908.107.707.747.74-2.27%987,847
Feb 24, 20268.058.277.787.927.92-1.25%1,538,700
Feb 23, 20268.098.327.748.028.02-0.74%1,625,716
Feb 20, 20268.418.698.018.088.08-5.39%3,597,516
Feb 19, 20268.328.738.148.548.543.02%1,924,110
Feb 18, 20268.188.667.938.298.29-0.48%2,893,163
Feb 17, 20268.699.007.968.338.33-4.80%6,025,969
Feb 13, 202612.6912.698.528.758.75-31.64%6,503,631
Feb 12, 202614.8614.8612.7512.8012.80-12.87%3,879,133
Feb 11, 202619.0020.0112.6514.6914.69-47.18%8,848,205
Feb 10, 202626.1028.5825.9327.8127.816.47%800,791
Feb 9, 202626.2426.2425.1626.1226.12-0.31%509,701
Feb 6, 202626.5627.9825.9426.2026.200.77%517,906
Feb 5, 202629.4030.3125.8726.0026.00-11.50%619,509
Feb 4, 202630.8830.8828.3529.3829.38-4.58%610,504
Feb 3, 202630.3831.0529.8230.7930.792.84%635,741
Feb 2, 202631.1032.3829.6429.9429.94-3.67%783,093
Jan 30, 202630.6431.3729.7131.0831.080.45%667,528
Jan 29, 202630.3031.1229.6130.9430.941.68%459,682
Jan 28, 202632.5032.5029.9930.4330.43-6.37%658,138
Jan 27, 202630.2432.8330.1332.5032.507.76%1,068,844
Jan 26, 202629.7730.9129.7630.1630.160.47%545,748
Jan 23, 202631.6231.6229.8330.0230.02-5.57%371,092
Jan 22, 202631.7432.5231.7031.7931.790.63%402,451
Jan 21, 202630.9532.1430.3131.5931.591.90%468,367
Jan 20, 202630.2231.5229.0831.0031.00-774,067
Jan 16, 202631.0631.6429.8031.0031.000.32%418,416
Jan 15, 202632.4232.4230.7430.9030.90-4.33%718,897
Jan 14, 202632.6833.6831.9532.3032.30-0.92%620,972
Jan 13, 202631.7132.6630.4832.6032.602.97%834,721
Jan 12, 202629.7331.9329.3431.6631.666.42%678,977