BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

HORIZON KINETICS ASSET MANAGEMENT LLC's Holding History (CIK: 0001056823)

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

Q4 2025
Shares 2,988 Value ($000) $526 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 3,119 Value ($000) $437 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 3,038 Value ($000) $382 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 3,169 Value ($000) $434 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 3,169 Value ($000) $485 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 3,040 Value ($000) $589 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 3,121 Value ($000) $724 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 3,121 Value ($000) $673 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 3,119 Value ($000) $807 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 3,250 Value ($000) $835 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 3,250 Value ($000) $926 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 3,250 Value ($000) $904 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 3,750 Value ($000) $1,038 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 3,750 Value ($000) $1,001 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 3,750 Value ($000) $765 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 3,750 Value ($000) $790 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 3,750 Value ($000) $900 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 3,875 Value ($000) $1,097 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 3,875 Value ($000) $1,342 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 3,925 Value ($000) $1,098 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 3,954 Value ($000) $968 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 3,999 Value ($000) $1,134 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 3,999 Value ($000) $1,070 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 4,124 Value ($000) $1,305 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 4,254 Value ($000) $1,262 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 4,529 Value ($000) $1,054 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 4,629 Value ($000) $1,083 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 4,504 Value ($000) $1,065 Avg Close $314.89 Range $216.12 - $344.00