BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Twin Tree Management, LP's Holding History (CIK: 0001535588)

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

Q4 2025
Shares 12,270 Value ($000) $2,159 Avg Close $163.37 Range $138.00 - $185.17
Q3 2024
Shares 4,296 Value ($000) $833 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 1,737 Value ($000) $403 Avg Close $217.32 Range $189.44 - $237.54
Q2 2023
Shares 29,552 Value ($000) $8,418 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 19,639 Value ($000) $5,460 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 48,196 Value ($000) $13,346 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 113,812 Value ($000) $30,388 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 96,604 Value ($000) $19,701 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 58,997 Value ($000) $12,425 Avg Close $217.46 Range $192.67 - $249.00
Q2 2021
Shares 12,777 Value ($000) $4,424 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 99,425 Value ($000) $27,814 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 52,116 Value ($000) $12,761 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 70,278 Value ($000) $19,936 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 51,017 Value ($000) $13,650 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 23,186 Value ($000) $7,336 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 52,323 Value ($000) $15,526 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 22,907 Value ($000) $5,333 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 25,288 Value ($000) $5,914 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 33,502 Value ($000) $7,919 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 34,166 Value ($000) $10,281 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 702 Value ($000) $248 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 25,646 Value ($000) $7,443 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 42,209 Value ($000) $11,558 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 7,152 Value ($000) $2,278 Avg Close $320.80 Range $301.81 - $348.84
Q2 2017
Shares 40,056 Value ($000) $10,870 Avg Close $264.42 Range $244.28 - $291.90
Q3 2016
Shares 4,456 Value ($000) $1,395 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 9,308 Value ($000) $2,251 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 8,250 Value ($000) $2,148 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 3,590 Value ($000) $1,100 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 10,007 Value ($000) $2,920 Avg Close $330.23 Range $265.00 - $412.24
Q1 2015
Shares 4,077 Value ($000) $1,721 Avg Close $394.14 Range $334.40 - $480.18
Q3 2014
Shares 1,862 Value ($000) $616 Avg Close $329.72 Range $298.31 - $349.00
Q1 2014
Shares 2,195 Value ($000) $671 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 5,413 Value ($000) $1,513 Avg Close $258.65 Range $221.07 - $298.82
Q2 2013
Shares 2,534 Value ($000) $545 Avg Close $213.68 Range $191.80 - $242.64
Q1 2013
Shares 19,329 Value ($000) $3,723 Avg Close $161.63 Range $139.72 - $192.92
Q4 2012
Shares 2,344 Value ($000) $343 Avg Close — Range —