BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BALYASNY ASSET MANAGEMENT L.P.'s Holding History (CIK: 0001218710)

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

Q4 2025
Shares 607,953 Value ($000) $106,994 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 1,234,149 Value ($000) $172,880 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 831,905 Value ($000) $104,479 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 786,219 Value ($000) $107,586 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 45,829 Value ($000) $7,008 Avg Close $168.67 Range $145.07 - $195.00
Q2 2024
Shares 394,887 Value ($000) $91,543 Avg Close $217.32 Range $189.44 - $237.54
Q4 2023
Shares 317,302 Value ($000) $82,108 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 230,411 Value ($000) $59,218 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 59,988 Value ($000) $17,088 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 239,395 Value ($000) $66,559 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 51,383 Value ($000) $14,229 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 176,165 Value ($000) $47,036 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 23,306 Value ($000) $4,753 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 168,176 Value ($000) $35,418 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 81,244 Value ($000) $19,492 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 46,535 Value ($000) $13,169 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 138,279 Value ($000) $47,882 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 89,620 Value ($000) $25,071 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 35,135 Value ($000) $8,603 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 153,258 Value ($000) $43,476 Avg Close $278.91 Range $261.87 - $312.00
Q4 2019
Shares 129,669 Value ($000) $38,477 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 13,796 Value ($000) $3,212 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 120,457 Value ($000) $28,171 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 23,423 Value ($000) $5,537 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 106,566 Value ($000) $32,068 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 6,527 Value ($000) $2,306 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 45,705 Value ($000) $13,265 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 440,160 Value ($000) $120,525 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 547,609 Value ($000) $174,452 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 162,479 Value ($000) $50,875 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 261,645 Value ($000) $71,000 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 46,616 Value ($000) $12,746 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 94,826 Value ($000) $26,891 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 448,225 Value ($000) $140,308 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 243,652 Value ($000) $58,920 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 201,967 Value ($000) $52,576 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 176,954 Value ($000) $54,210 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 212,801 Value ($000) $62,097 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 275,246 Value ($000) $111,183 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 26,910 Value ($000) $11,362 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 50,393 Value ($000) $17,117 Avg Close $323.51 Range $290.85 - $361.93