BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

FMR LLC's Holding History (CIK: 0000315066)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025
Shares 9,425,863 Value ($000) $1,658,857 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 1,287,760 Value ($000) $180,389 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 1,674,220 Value ($000) $210,265 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 1,308,828 Value ($000) $179,100 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 757,570 Value ($000) $115,848 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 381,214 Value ($000) $73,895 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 610,416 Value ($000) $141,507 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 620,850 Value ($000) $133,874 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 1,001,144 Value ($000) $259,066 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 1,361,051 Value ($000) $349,804 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 2,640,521 Value ($000) $752,152 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 1,752,614 Value ($000) $487,279 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 1,211,193 Value ($000) $335,404 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 1,476,232 Value ($000) $394,154 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 1,026,166 Value ($000) $209,277 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 387,970 Value ($000) $81,707 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 187,301 Value ($000) $44,937 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 1,177,553 Value ($000) $333,235 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 1,352,218 Value ($000) $468,233 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 1,915,216 Value ($000) $535,782 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 1,981,868 Value ($000) $485,280 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 1,084,826 Value ($000) $307,743 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 1,142,394 Value ($000) $305,648 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 2,187,836 Value ($000) $692,187 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 1,458,609 Value ($000) $432,813 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 1,719,672 Value ($000) $400,374 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 2,042,276 Value ($000) $477,627 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 2,551,666 Value ($000) $603,162 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 3,671,066 Value ($000) $1,104,697 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 4,322,187 Value ($000) $1,527,072 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 5,348,115 Value ($000) $1,552,237 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 6,771,037 Value ($000) $1,854,045 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 9,092,419 Value ($000) $2,896,571 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 7,151,969 Value ($000) $2,239,425 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 6,104,026 Value ($000) $1,656,390 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 5,542,590 Value ($000) $1,515,455 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 8,200,534 Value ($000) $2,325,508 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 9,718,551 Value ($000) $3,042,197 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 11,442,148 Value ($000) $2,766,940 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 13,493,064 Value ($000) $3,512,514 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 12,925,995 Value ($000) $3,959,878 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 16,563,800 Value ($000) $4,833,482 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 21,738,394 Value ($000) $8,781,007 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 22,041,151 Value ($000) $9,306,655 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 19,788,113 Value ($000) $6,717,074 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 19,002,794 Value ($000) $6,286,313 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 21,144,772 Value ($000) $6,667,159 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 21,925,328 Value ($000) $6,706,300 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 24,041,515 Value ($000) $6,725,614 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 25,640,507 Value ($000) $6,173,208 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 23,528,529 Value ($000) $5,063,340 Avg Close $213.68 Range $191.80 - $242.64