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Biogen Inc. Stock Price (Quote) NASDAQ:BIIB
$264.80 ( -2.00% ) Friday, 22nd Oct 2021
| Range | Low Price | High Price | Comment |
|---|---|---|---|
| 30 days | $264.35 | $299.83 | Friday, 22nd Oct 2021 BIIB stock ended at $264.80. This is 2% less than the trading day before Thursday, 21st Oct 2021. During the day the stock fluctuated 2.28% from a day low at $264.35 to a day high of $270.37. |
| 90 days | $264.35 | $351.86 | |
| 52 weeks | $223.25 | $468.55 |
Historical Biogen Inc. prices
| Date | Open | High | Low | Close | Volume |
| 2021-10-22 | $269.38 | $270.37 | $264.35 | $264.80 | 856 882 |
| 2021-10-21 | $266.30 | $271.94 | $266.29 | $270.21 | 1 341 514 |
| 2021-10-20 | $270.11 | $277.87 | $264.78 | $266.57 | 2 127 122 |
| 2021-10-19 | $270.00 | $271.66 | $266.30 | $268.13 | 1 789 918 |
| 2021-10-18 | $279.42 | $279.50 | $269.19 | $269.73 | 1 496 125 |
| 2021-10-15 | $285.34 | $286.00 | $278.57 | $281.19 | 1 294 855 |
| 2021-10-14 | $286.00 | $287.93 | $282.65 | $285.26 | 703 245 |
| 2021-10-13 | $284.90 | $285.30 | $280.50 | $283.65 | 516 295 |
| 2021-10-12 | $285.48 | $288.59 | $283.79 | $284.79 | 601 921 |
| 2021-10-11 | $284.65 | $288.77 | $283.45 | $285.59 | 620 545 |
| 2021-10-08 | $287.44 | $288.99 | $284.00 | $285.83 | 629 534 |
| 2021-10-07 | $285.52 | $290.76 | $284.59 | $287.77 | 850 441 |
| 2021-10-06 | $280.12 | $285.57 | $279.12 | $283.55 | 966 599 |
| 2021-10-05 | $278.34 | $282.26 | $278.34 | $280.44 | 994 144 |
| 2021-10-04 | $281.44 | $284.56 | $277.41 | $278.32 | 924 442 |
| 2021-10-01 | $281.35 | $285.41 | $279.24 | $283.94 | 920 273 |
| 2021-09-30 | $286.23 | $287.80 | $282.64 | $282.99 | 776 500 |
| 2021-09-29 | $285.76 | $289.34 | $284.64 | $285.56 | 697 108 |
| 2021-09-28 | $290.82 | $291.54 | $284.25 | $284.71 | 725 052 |
| 2021-09-27 | $290.55 | $291.00 | $286.16 | $286.62 | 703 192 |
| 2021-09-24 | $289.86 | $293.47 | $289.00 | $291.71 | 814 132 |
| 2021-09-23 | $293.69 | $299.83 | $292.10 | $293.20 | 900 639 |
| 2021-09-22 | $289.44 | $292.17 | $285.40 | $289.32 | 1 419 080 |
| 2021-09-21 | $300.97 | $304.21 | $292.73 | $295.54 | 730 560 |
| 2021-09-20 | $297.94 | $301.58 | $296.31 | $298.49 | 927 737 |
| 2021-09-17 | $300.85 | $300.85 | $296.56 | $300.19 | 1 578 800 |
| 2021-09-16 | $300.79 | $302.93 | $296.77 | $299.69 | 747 367 |
| 2021-09-15 | $298.99 | $302.42 | $296.36 | $299.21 | 1 040 096 |
| 2021-09-14 | $301.68 | $301.98 | $294.34 | $295.95 | 1 028 179 |
| 2021-09-13 | $301.87 | $306.46 | $300.00 | $301.94 | 754 963 |
| 2021-09-10 | $299.97 | $302.47 | $295.25 | $299.81 | 1 303 236 |
| 2021-09-09 | $322.00 | $322.49 | $295.22 | $300.15 | 3 529 549 |
| 2021-09-08 | $330.22 | $330.22 | $318.07 | $321.55 | 1 138 147 |
| 2021-09-07 | $331.31 | $332.87 | $325.22 | $327.24 | 959 337 |
| 2021-09-03 | $336.80 | $337.80 | $333.06 | $333.60 | 544 229 |
| 2021-09-02 | $338.67 | $338.69 | $327.80 | $335.57 | 1 221 144 |
| 2021-09-01 | $340.78 | $341.29 | $336.44 | $338.24 | 787 075 |
| 2021-08-31 | $344.62 | $345.61 | $337.90 | $338.91 | 961 802 |
| 2021-08-30 | $342.92 | $345.78 | $340.75 | $344.42 | 550 867 |
| 2021-08-27 | $341.81 | $347.74 | $338.52 | $343.19 | 613 504 |
| 2021-08-26 | $343.28 | $347.13 | $342.02 | $342.24 | 714 972 |
| 2021-08-25 | $347.24 | $347.69 | $341.50 | $342.75 | 780 098 |
| 2021-08-24 | $346.75 | $350.45 | $345.89 | $349.40 | 625 130 |
| 2021-08-23 | $342.33 | $349.63 | $341.16 | $346.43 | 809 703 |
| 2021-08-20 | $339.72 | $345.74 | $337.08 | $341.74 | 780 534 |
| 2021-08-19 | $341.88 | $347.79 | $337.68 | $338.62 | 943 003 |
| 2021-08-18 | $349.43 | $351.86 | $341.31 | $341.87 | 667 627 |
| 2021-08-17 | $340.90 | $350.07 | $340.76 | $349.79 | 1 135 635 |
| 2021-08-16 | $341.92 | $344.00 | $337.20 | $343.50 | 830 984 |
| 2021-08-13 | $340.34 | $345.08 | $339.02 | $342.25 | 732 112 |
Biogen Inc. discovers, develops, manufactures, and delivers therapies for the treatment of neurodegenerative diseases, hematologic conditions, and autoimmune disorders. It offers TECFIDERA, AVONEX, and PLEGRIDY to treat relapsing forms of multiple sclerosis (MS); TYSABRI to treat relapsing forms of MS and Crohns disease; and FAMPYRA to improve walking ability for patients with MS. The company also provides ELOCTATE to treat adults and children ... Golden Star Signal
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