BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Parallel Advisors, LLC's Holding History (CIK: 0001690010)

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

Q4 2025
Shares 4,302 Value ($000) $757 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 4,223 Value ($000) $592 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 4,354 Value ($000) $547 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 1,610 Value ($000) $220 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 1,320 Value ($000) $202 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 1,545 Value ($000) $299 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 1,982 Value ($000) $459 Avg Close $217.32 Range $189.44 - $237.54
Q1 2024
Shares 1,826 Value ($000) $394 Avg Close $234.20 Range $211.02 - $268.30
Q4 2023
Shares 1,901 Value ($000) $492 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 1,934 Value ($000) $497 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 2,033 Value ($000) $579 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 1,991 Value ($000) $554 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 2,048 Value ($000) $567 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 1,757 Value ($000) $469 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 1,773 Value ($000) $362 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 1,852 Value ($000) $391 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 2,000 Value ($000) $480 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 2,192 Value ($000) $620 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 2,170 Value ($000) $751 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 1,973 Value ($000) $552 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 1,991 Value ($000) $488 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 1,843 Value ($000) $523 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 1,786 Value ($000) $477 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 2,511 Value ($000) $794 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 1,681 Value ($000) $499 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 1,916 Value ($000) $446 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 1,166 Value ($000) $273 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 1,375 Value ($000) $325 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 1,476 Value ($000) $443 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 1,396 Value ($000) $492 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 1,349 Value ($000) $391 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 1,129 Value ($000) $309 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 1,053 Value ($000) $335 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 1,009 Value ($000) $319 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 1,008 Value ($000) $292 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 1,118 Value ($000) $303 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 1,197 Value ($000) $339 Avg Close $296.43 Range $268.00 - $329.83