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Upstream Bio, Inc. (UPB)
NASDAQ: UPB · Real-Time Price · USD
27.75
+0.01 (0.04%)
At close: Dec 5, 2025, 4:00 PM EST
27.75
0.00 (0.00%)
After-hours: Dec 5, 2025, 5:01 PM EST

Upstream Bio Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Dec 5, 202527.8228.4327.0027.7527.750.04%399,840
Dec 4, 202526.6928.4526.6927.7427.742.86%568,481
Dec 3, 202525.0127.1524.9426.9726.977.84%497,282
Dec 2, 202529.6129.8924.6125.0125.01-13.70%839,114
Dec 1, 202528.3229.0828.0728.9828.981.33%418,258
Nov 28, 202528.1428.8928.0628.6028.602.14%144,592
Nov 26, 202529.1233.0027.9028.0028.00-2.88%509,329
Nov 25, 202526.2229.2925.8428.8328.8310.67%675,326
Nov 24, 202525.3526.9925.3226.0526.051.96%1,256,086
Nov 21, 202524.7126.1024.1225.5525.552.36%384,483
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
Nov 7, 202523.6423.6421.9822.9622.96-2.96%271,659
Nov 6, 202524.0024.5823.0323.6623.66-1.29%289,373
Nov 5, 202525.4425.6523.6623.9723.97-4.27%234,637
Nov 4, 202524.2725.5724.0225.0425.040.08%342,735
Nov 3, 202525.9226.2224.7625.0225.02-3.21%317,134
Oct 31, 202525.7026.2525.4825.8525.850.31%215,055
Oct 30, 202523.9326.9023.9325.7725.776.53%353,009
Oct 29, 202524.8225.3323.9524.1924.19-2.62%197,859
Oct 28, 202523.5025.0923.5024.8424.845.34%418,207
Oct 27, 202521.9724.0021.8923.5823.587.87%414,110
Oct 24, 202521.4522.1421.4421.8621.863.45%186,192
Oct 23, 202522.1222.4221.0221.1321.13-4.60%241,381
Oct 22, 202522.2222.6221.9022.1522.15-0.81%450,360
Oct 21, 202523.0323.0322.1422.3322.33-3.12%475,311
Oct 20, 202521.3723.3421.1723.0523.059.92%787,806
Oct 17, 202521.8622.1520.6520.9720.97-5.88%370,897
Oct 16, 202521.7922.3921.3922.2822.282.72%397,419
Oct 15, 202520.1221.8720.1221.6921.698.56%477,981
Oct 14, 202520.6520.6519.6319.9819.98-0.50%261,701
Oct 13, 202519.7920.3119.5620.0820.082.34%218,214
Oct 10, 202519.8020.6819.4619.6219.62-0.86%271,809
Oct 9, 202518.9020.0918.6119.7919.794.60%636,393
Oct 8, 202518.8819.3018.7218.9218.921.34%328,407
Oct 7, 202518.7718.9618.1818.6718.67-1.58%190,145
Oct 6, 202518.7219.4418.7218.9718.971.83%335,262
Oct 3, 202518.6019.0618.6018.6318.630.22%239,518
Oct 2, 202518.6919.0118.3718.5918.59-0.21%336,949
Oct 1, 202518.6719.0018.0518.6318.63-0.96%327,760
Sep 30, 202517.3419.2317.1418.8118.818.48%783,075
Sep 29, 202517.2317.8117.0617.3417.340.46%208,388
Sep 26, 202516.3517.3216.2717.2617.265.82%254,648