BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Magnetar Financial LLC's Holding History (CIK: 0001352851)

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

Q2 2025
Shares 2,484 Value ($000) $312 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 7,719 Value ($000) $1,056 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 1,877 Value ($000) $287 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 1,160 Value ($000) $225 Avg Close $209.21 Range $188.78 - $238.00
Q4 2022
Shares 1,337 Value ($000) $0 Avg Close $282.44 Range $250.31 - $311.88
Q2 2022
Shares 2,555 Value ($000) $521 Avg Close $204.43 Range $187.16 - $225.50
Q4 2021
Shares 3,714 Value ($000) $891 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 35,442 Value ($000) $10,030 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 10,705 Value ($000) $3,707 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 7,363 Value ($000) $2,060 Avg Close $269.69 Range $238.40 - $296.38
Q2 2020
Shares 1,022 Value ($000) $273 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 640 Value ($000) $202 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 1,409 Value ($000) $418 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 4,241 Value ($000) $987 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 3,912 Value ($000) $915 Avg Close $230.90 Range $219.20 - $245.35
Q2 2018
Shares 825 Value ($000) $239 Avg Close $281.15 Range $249.17 - $310.91
Q4 2017
Shares 636 Value ($000) $203 Avg Close $320.80 Range $301.81 - $348.84
Q1 2017
Shares 4,514 Value ($000) $1,234 Avg Close $282.75 Range $260.50 - $301.42
Q1 2015
Shares 5,229 Value ($000) $2,208 Avg Close $394.14 Range $334.40 - $480.18