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Biogen Inc. (BIIB)
NASDAQ: BIIB · Real-Time Price · USD
216.03
+14.07 (6.97%)
At close: Jun 26, 2026, 4:00 PM EDT
216.00
-0.03 (-0.01%)
After-hours: Jun 26, 2026, 7:44 PM EDT

Biogen Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 26, 2026202.53218.06202.29216.03216.036.97%2,361,606
Jun 25, 2026201.63206.67200.20201.96201.961.19%1,282,196
Jun 24, 2026199.34202.06198.66199.59199.591.22%1,277,671
Jun 23, 2026198.88201.22197.01197.19197.19-1.26%992,373
Jun 22, 2026199.48200.98194.74199.71199.711.59%1,668,987
Jun 18, 2026200.22200.99193.20196.58196.58-1.05%1,723,453
Jun 17, 2026195.14201.75194.04198.67198.671.56%1,001,746
Jun 16, 2026199.69200.26194.04195.61195.61-1.53%906,697
Jun 15, 2026198.37199.37195.89198.64198.64-0.70%883,963
Jun 12, 2026200.57203.45199.06200.05200.050.05%837,294
Jun 11, 2026195.49201.18194.24199.96199.962.94%914,781
Jun 10, 2026200.21201.94194.10194.24194.24-2.44%1,071,228
Jun 9, 2026195.51199.63193.45199.10199.103.36%934,191
Jun 8, 2026197.25198.70192.18192.62192.62-1.39%1,162,350
Jun 5, 2026196.45200.66195.14195.34195.34-0.57%880,438
Jun 4, 2026198.00199.90196.35196.45196.450.25%719,127
Jun 3, 2026187.69196.51187.48195.96195.963.78%891,787
Jun 2, 2026190.09190.58184.90188.83188.83-1.77%1,098,098
Jun 1, 2026194.50195.28191.67192.23192.23-1.92%841,499
May 29, 2026195.55198.46195.11196.00196.00-0.20%1,905,488
May 28, 2026196.97198.00194.50196.39196.39-0.29%556,331
May 27, 2026194.11199.80194.11196.97196.972.01%893,048
May 26, 2026194.30195.50192.27193.08193.08-0.35%930,212
May 22, 2026190.53194.75190.01193.76193.762.26%892,933
May 21, 2026187.40190.27185.85189.47189.470.89%1,475,348
May 20, 2026191.41193.38186.37187.80187.80-1.45%919,894
May 19, 2026191.72193.03188.64190.56190.56-0.70%1,054,138
May 18, 2026191.25193.37189.19191.91191.91-0.54%1,051,356
May 15, 2026191.83194.91190.66192.95192.950.83%1,252,270
May 14, 2026200.25205.00189.49191.37191.37-6.43%2,812,933
May 13, 2026199.33205.97198.86204.53204.532.59%1,272,026
May 12, 2026198.47202.40196.47199.36199.360.71%1,145,749
May 11, 2026194.76200.31194.75197.95197.952.33%1,772,229
May 8, 2026189.68195.20189.50193.45193.451.08%931,578
May 7, 2026190.34192.10188.86191.38191.380.37%735,692
May 6, 2026189.13191.17188.30190.68190.680.82%741,346
May 5, 2026187.38189.69186.00189.13189.131.03%586,074
May 4, 2026186.28187.51185.44187.21187.210.08%626,559
May 1, 2026189.28190.57186.14187.06187.06-1.17%696,812
Apr 30, 2026194.02195.98187.16189.28189.28-2.62%1,550,523
Apr 29, 2026183.12195.89180.18194.38194.386.00%2,453,836
Apr 28, 2026182.45184.41181.89183.38183.381.50%1,235,813
Apr 27, 2026183.16186.15179.15180.67180.67-2.01%1,101,370
Apr 24, 2026186.65186.65183.17184.38184.38-1.86%723,366
Apr 23, 2026189.46190.32187.01187.88187.88-1.15%816,281
Apr 22, 2026189.31192.75188.67190.07190.072.22%1,328,297
Apr 21, 2026184.52187.74181.75185.95185.951.42%1,063,303
Apr 20, 2026179.54184.26178.72183.34183.343.38%1,484,371
Apr 17, 2026176.29178.41175.69177.35177.350.76%1,239,458
Apr 16, 2026178.82179.99174.85176.02176.02-2.50%953,722
Apr 15, 2026179.36180.87177.70180.54180.540.88%1,168,801
Apr 14, 2026177.71181.77177.45178.96178.961.47%1,550,580
Apr 13, 2026172.62176.79171.22176.37176.371.96%1,414,958
Apr 10, 2026177.97177.97172.32172.97172.97-2.34%1,501,979
Apr 9, 2026177.81180.06174.97177.11177.11-1.55%1,266,491
Apr 8, 2026178.24180.24176.35179.90179.902.44%1,289,686
Apr 7, 2026172.20175.64170.43175.61175.611.90%1,515,806
Apr 6, 2026177.00177.39168.64172.34172.34-2.82%2,149,104
Apr 2, 2026181.46182.23176.39177.34177.34-3.50%1,339,297
Apr 1, 2026183.16186.31181.71183.78183.780.25%1,390,216
Mar 31, 2026179.46184.68171.37183.33183.33-2.26%2,719,977
Mar 30, 2026186.16190.09185.51187.57187.572.03%799,935
Mar 27, 2026191.06191.06183.01183.84183.84-3.78%935,104
Mar 26, 2026189.00192.28188.36191.06191.060.99%879,198
Mar 25, 2026184.91189.38184.91189.18189.182.85%775,195
Mar 24, 2026182.63184.84180.33183.94183.940.16%644,275
Mar 23, 2026183.48185.00183.00183.64183.641.20%1,011,752
Mar 20, 2026183.13183.69180.47181.46181.46-1.06%2,214,268
Mar 19, 2026182.18185.45181.68183.41183.410.60%768,649
Mar 18, 2026184.13184.32180.48182.31182.31-1.61%846,255
Mar 17, 2026184.73186.52183.20185.29185.291.11%810,219
Mar 16, 2026182.75184.62181.88183.26183.260.94%995,911
Mar 13, 2026185.99188.00181.46181.55181.55-1.81%1,092,301
Mar 12, 2026187.86188.91184.63184.90184.90-2.93%851,563
Mar 11, 2026187.54192.99187.54190.48190.481.10%864,392
Mar 10, 2026187.69190.78187.02188.41188.410.09%687,662
Mar 9, 2026183.91188.50182.60188.24188.241.82%651,626
Mar 6, 2026186.25186.25181.24184.87184.87-1.71%772,906
Mar 5, 2026187.97190.99185.95188.08188.08-0.98%893,331
Mar 4, 2026185.06190.37183.16189.94189.943.22%952,927
Mar 3, 2026185.01187.05181.79184.02184.02-2.14%1,049,925
Mar 2, 2026190.22190.75186.72188.05188.05-1.97%691,597
Feb 27, 2026187.51192.46186.62191.82191.822.02%1,402,201
Feb 26, 2026190.30190.74185.90188.02188.02-1.42%988,117
Feb 25, 2026194.23196.73189.89190.73190.73-2.25%942,723
Feb 24, 2026196.03198.72194.43195.13195.13-0.62%716,382
Feb 23, 2026191.82197.05189.11196.34196.342.24%878,939
Feb 20, 2026190.78192.60189.95192.03192.03-0.03%799,225
Feb 19, 2026193.51195.00191.05192.08192.08-1.06%993,273
Feb 18, 2026195.32195.68193.11194.13194.13-0.76%1,049,036
Feb 17, 2026197.46200.29193.37195.62195.62-0.46%986,535
Feb 13, 2026196.27199.50195.52196.52196.520.52%1,352,792
Feb 12, 2026190.15196.00189.00195.50195.502.25%1,657,480
Feb 11, 2026188.35192.00187.20191.20191.201.17%996,929
Feb 10, 2026194.07195.72188.74188.99188.99-2.49%1,836,221
Feb 9, 2026199.83201.00191.88193.81193.81-3.66%2,096,252
Feb 6, 2026187.01202.41184.60201.18201.188.53%3,404,876
Feb 5, 2026184.87187.73184.54185.36185.36-0.05%2,542,641
Feb 4, 2026177.25186.24177.10185.45185.454.92%2,076,363
Feb 3, 2026177.79182.67176.19176.76176.76-1.30%1,594,142