BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

GUARDIAN INVESTMENT MANAGEMENT's Holding History (CIK: 0001365474)

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

Q4 2025
Shares 5,400 Value ($000) $950 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 5,400 Value ($000) $756 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 5,300 Value ($000) $666 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 7,300 Value ($000) $999 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 7,300 Value ($000) $1,116 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 10,165 Value ($000) $1,970 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 10,165 Value ($000) $2,356 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 10,165 Value ($000) $2,192 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 10,165 Value ($000) $2,630 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 10,065 Value ($000) $2,587 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 10,065 Value ($000) $2,867 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 10,765 Value ($000) $3,012 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 10,165 Value ($000) $2,787 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 10,165 Value ($000) $2,714 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 10,165 Value ($000) $2,073 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 10,165 Value ($000) $2,140 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 10,165 Value ($000) $2,438 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 10,165 Value ($000) $2,876 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 10,665 Value ($000) $3,692 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 10,765 Value ($000) $3,011 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 10,865 Value ($000) $2,660 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 10,465 Value ($000) $2,968 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 10,465 Value ($000) $2,800 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 10,365 Value ($000) $3,279 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 10,165 Value ($000) $3,016 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 10,065 Value ($000) $2,343 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 11,065 Value ($000) $2,588 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 11,065 Value ($000) $2,615 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 11,165 Value ($000) $3,359 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 11,165 Value ($000) $3,944 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 11,165 Value ($000) $3,240 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 10,265 Value ($000) $2,810 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 11,065 Value ($000) $3,525 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 11,165 Value ($000) $3,496 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 11,165 Value ($000) $3,029 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 11,365 Value ($000) $3,107 Avg Close $282.75 Range $260.50 - $301.42