Biogen Inc. (BIIB)
NASDAQ: BIIB · Real-Time Price · USD
132.22
-0.43 (-0.32%)
At close: Aug 29, 2025, 4:00 PM
132.22
0.00 (0.00%)
After-hours: Aug 29, 2025, 4:05 PM EDT

Biogen Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Aug 29, 2025132.50133.48131.52131.93--0.54%500,106
Aug 28, 2025136.36136.36132.04132.65132.65-2.72%1,558,097
Aug 27, 2025136.00138.50135.79136.36136.36-0.26%1,403,137
Aug 26, 2025135.85136.91135.22136.72136.720.26%1,580,037
Aug 25, 2025139.01139.75136.14136.36136.36-2.12%861,976
Aug 22, 2025140.41142.32138.65139.31139.310.14%1,199,214
Aug 21, 2025138.26140.20137.59139.12139.120.09%1,074,281
Aug 20, 2025139.10140.50137.77138.99138.990.09%1,286,658
Aug 19, 2025136.37139.58136.02138.86138.862.17%1,447,803
Aug 18, 2025140.00141.18135.74135.91135.91-1.94%1,813,871
Aug 15, 2025136.16138.83135.88138.60138.602.71%1,644,116
Aug 14, 2025134.51135.23132.16134.94134.94-0.18%1,169,840
Aug 13, 2025129.62135.38129.40135.19135.194.86%1,549,212
Aug 12, 2025128.47131.10128.25128.93128.930.73%1,127,617
Aug 11, 2025131.16133.73127.71128.00128.00-2.04%1,070,293
Aug 8, 2025127.50131.26127.00130.67130.672.29%1,327,710
Aug 7, 2025130.02130.68127.65127.75127.75-1.23%1,718,239
Aug 6, 2025132.42132.67128.90129.34129.34-2.67%1,538,660
Aug 5, 2025131.91134.16131.57132.89132.890.52%1,395,619
Aug 4, 2025132.33133.98130.39132.20132.200.19%1,897,855
Aug 1, 2025128.96132.90124.56131.95131.953.09%2,798,550
Jul 31, 2025133.00135.43127.24128.00128.001.07%3,240,096
Jul 30, 2025128.56129.78125.97126.64126.64-0.99%1,892,068
Jul 29, 2025128.54129.26127.60127.90127.90-1.07%1,108,783
Jul 28, 2025131.35131.85128.43129.28129.28-1.70%1,045,656
Jul 25, 2025133.05133.05130.13131.52131.52-0.81%977,034
Jul 24, 2025130.78132.65130.00132.59132.591.23%1,280,623
Jul 23, 2025129.44131.25128.36130.98130.982.45%1,127,502
Jul 22, 2025123.38127.94123.38127.85127.854.21%1,319,120
Jul 21, 2025124.98125.42121.05122.68122.68-1.85%1,403,476
Jul 18, 2025129.37129.58124.68124.99124.99-2.88%1,524,966
Jul 17, 2025128.18129.21127.31128.69128.690.18%1,151,166
Jul 16, 2025128.50129.51127.42128.46128.460.75%1,234,689
Jul 15, 2025132.96133.36127.47127.50127.50-4.21%1,317,080
Jul 14, 2025133.56134.21132.40133.11133.11-0.82%694,370
Jul 11, 2025133.49134.59132.37134.21134.21-0.83%1,137,577
Jul 10, 2025133.45137.19132.77135.33135.331.74%992,049
Jul 9, 2025134.56137.84131.67133.02133.02-1.07%1,528,822
Jul 8, 2025130.32135.58130.32134.46134.463.33%1,350,819
Jul 7, 2025132.10133.20129.08130.13130.13-2.06%1,086,980
Jul 3, 2025133.49134.42132.21132.87132.87-0.24%633,328
Jul 2, 2025130.00134.63129.85133.19133.192.40%1,474,231
Jul 1, 2025124.94134.75124.94130.07130.073.57%1,919,845
Jun 30, 2025126.30126.53123.90125.59125.59-0.39%1,184,454
Jun 27, 2025127.20128.25125.60126.08126.08-0.66%1,100,003
Jun 26, 2025127.89129.27126.46126.92126.92-0.31%864,951
Jun 25, 2025126.30127.98125.13127.31127.310.79%1,095,917
Jun 24, 2025125.57127.36125.02126.31126.311.24%938,208
Jun 23, 2025126.90127.68123.21124.76124.76-1.79%1,190,232
Jun 20, 2025127.96128.64126.12127.04127.040.40%2,166,571