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Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
31.79
+0.20 (0.63%)
At close: Jan 22, 2026, 4:00 PM EST
32.42
+0.63 (1.98%)
After-hours: Jan 22, 2026, 5:05 PM EST

Upstream Bio Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jan 22, 202631.7432.5231.7031.7931.790.63%402,365
Jan 21, 202630.9532.1430.3131.5931.591.90%463,393
Jan 20, 202630.2231.5229.0831.0031.00-774,034
Jan 16, 202631.0631.6429.8031.0031.000.32%417,481
Jan 15, 202632.4232.4230.7430.9030.90-4.33%705,067
Jan 14, 202632.6833.6831.9532.3032.30-0.92%620,693
Jan 13, 202631.7132.6630.4832.6032.602.97%819,907
Jan 12, 202629.7331.9329.3431.6631.666.42%677,346
Jan 9, 202627.8730.6027.8729.7529.758.02%850,816
Jan 8, 202627.7128.4927.2227.5427.54-1.92%502,731
Jan 7, 202626.0828.1626.0828.0828.088.54%700,087
Jan 6, 202625.9326.5225.0025.8725.87-1.00%452,806
Jan 5, 202627.0727.3925.2526.1326.13-3.47%689,799
Jan 2, 202627.3028.0126.7227.0727.07-0.29%585,920
Dec 31, 202527.1727.5826.8627.1527.15-0.62%517,497
Dec 30, 202528.7728.7726.8627.3227.32-5.24%831,474
Dec 29, 202529.4829.9228.7028.8328.83-2.20%238,092
Dec 26, 202530.1130.1129.1029.4829.48-2.61%228,013
Dec 24, 202529.6530.7629.6030.2730.273.63%266,459
Dec 23, 202530.2730.7629.0529.2129.21-4.01%347,234
Dec 22, 202529.2930.8929.0030.4330.433.68%701,354
Dec 19, 202530.0130.5629.1929.3529.35-1.71%1,463,070
Dec 18, 202529.0930.2728.3629.8629.865.40%795,855
Dec 17, 202529.4129.9528.1528.3328.33-3.38%439,687
Dec 16, 202526.9229.7326.0329.3229.327.79%932,274
Dec 15, 202527.5627.9526.6827.2027.200.22%1,173,600
Dec 12, 202528.0028.2526.7827.1427.14-1.20%305,420
Dec 11, 202528.7229.5127.1627.4727.47-4.19%661,765
Dec 10, 202528.3729.5527.9328.6728.671.08%342,285
Dec 9, 202528.7329.1727.9928.3728.37-2.09%403,427
Dec 8, 202528.0329.5027.9128.9728.974.40%345,155
Dec 5, 202527.8228.4327.0027.7527.750.04%399,865
Dec 4, 202526.6928.4526.6927.7427.742.86%568,481
Dec 3, 202525.0127.1524.9426.9726.977.84%497,292
Dec 2, 202529.6129.8924.6125.0125.01-13.70%839,176
Dec 1, 202528.3229.0828.0728.9828.981.33%418,272
Nov 28, 202528.1428.8928.0628.6028.602.14%145,017
Nov 26, 202529.1233.0027.9028.0028.00-2.88%509,421
Nov 25, 202526.2229.2925.8428.8328.8310.67%683,358
Nov 24, 202525.3526.9925.3226.0526.051.96%1,256,823
Nov 21, 202524.7126.1024.1225.5525.552.36%384,488
Nov 20, 202525.3726.1924.7524.9624.960.08%402,304
Nov 19, 202525.3125.8024.1024.9424.94-2.43%422,235
Nov 18, 202526.2026.2025.0725.5625.56-0.54%585,001
Nov 17, 202524.3926.1524.1425.7025.704.77%527,525
Nov 14, 202523.0825.1023.0124.5324.535.10%801,777
Nov 13, 202523.5223.9922.9923.3423.34-1.60%429,938
Nov 12, 202523.7424.9523.2223.7223.72-0.25%476,587
Nov 11, 202523.3124.8022.8923.7823.781.19%214,970
Nov 10, 202523.5223.8722.5923.5023.502.35%490,481