BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

KEYBANK NATIONAL ASSOCIATION/OH's Holding History (CIK: 0001089877)

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

Q4 2025
Shares 8,418 Value ($000) $1,481 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 8,254 Value ($000) $1,156 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 8,093 Value ($000) $1,016 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 7,511 Value ($000) $1,028 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 7,633 Value ($000) $1,167 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 7,739 Value ($000) $1,500 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 7,921 Value ($000) $1,836 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 7,823 Value ($000) $1,687 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 10,338 Value ($000) $2,675 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 11,120 Value ($000) $2,858 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 11,048 Value ($000) $3,147 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 10,930 Value ($000) $3,039 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 10,309 Value ($000) $2,855 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 8,674 Value ($000) $2,316 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 9,215 Value ($000) $1,879 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 9,136 Value ($000) $1,924 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 9,810 Value ($000) $2,354 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 10,528 Value ($000) $2,979 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 12,028 Value ($000) $4,165 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 10,805 Value ($000) $3,023 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 11,421 Value ($000) $2,797 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 13,072 Value ($000) $3,708 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 13,276 Value ($000) $3,552 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 13,781 Value ($000) $4,360 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 13,863 Value ($000) $4,114 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 14,572 Value ($000) $3,393 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 16,075 Value ($000) $3,759 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 15,852 Value ($000) $3,747 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 15,943 Value ($000) $4,798 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 15,870 Value ($000) $5,607 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 16,710 Value ($000) $4,850 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 17,954 Value ($000) $4,916 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 14,814 Value ($000) $4,719 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 15,490 Value ($000) $4,850 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 13,620 Value ($000) $3,696 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 14,425 Value ($000) $3,944 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 15,058 Value ($000) $4,270 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 14,053 Value ($000) $4,399 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 10,735 Value ($000) $2,596 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 10,813 Value ($000) $2,815 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 10,795 Value ($000) $3,307 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 12,106 Value ($000) $3,533 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 12,187 Value ($000) $4,923 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 12,743 Value ($000) $5,381 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 13,118 Value ($000) $4,453 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 14,543 Value ($000) $4,811 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 17,588 Value ($000) $5,546 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 18,496 Value ($000) $5,657 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 19,335 Value ($000) $5,406 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 19,407 Value ($000) $4,672 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 266,216 Value ($000) $58,208 Avg Close $213.68 Range $191.80 - $242.64
Q1 2013
Shares 318,291 Value ($000) $61,356 Avg Close $161.63 Range $139.72 - $192.92
Q4 2012
Shares 362,255 Value ($000) $53,082 Avg Close — Range —