BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

THOMPSON SIEGEL & WALMSLEY LLC's Holding History (CIK: 0001008322)

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

Q4 2025
Shares 228,807 Value ($000) $40 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 306,442 Value ($000) $43 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 323,018 Value ($000) $41 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 257,456 Value ($000) $35 Avg Close $142.96 Range $128.51 - $157.09
Q4 2023
Shares 393 Value ($000) $0 Avg Close $245.62 Range $220.86 - $269.43
Q3 2023
Shares 393 Value ($000) $0 Avg Close $267.47 Range $251.85 - $287.60
Q2 2023
Shares 393 Value ($000) $0 Avg Close $297.86 Range $273.39 - $319.76
Q1 2023
Shares 441 Value ($000) $0 Avg Close $276.70 Range $254.80 - $295.90
Q4 2022
Shares 441 Value ($000) $0 Avg Close $282.44 Range $250.31 - $311.88
Q3 2022
Shares 441 Value ($000) $118 Avg Close $212.38 Range $193.65 - $283.44
Q2 2022
Shares 441 Value ($000) $90 Avg Close $204.43 Range $187.16 - $225.50
Q1 2022
Shares 441 Value ($000) $93 Avg Close $217.46 Range $192.67 - $249.00
Q4 2021
Shares 441 Value ($000) $106 Avg Close $257.12 Range $221.72 - $290.76
Q3 2021
Shares 446 Value ($000) $126 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 446 Value ($000) $154 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 461 Value ($000) $129 Avg Close $269.69 Range $238.40 - $296.38
Q4 2020
Shares 523 Value ($000) $128 Avg Close $259.08 Range $223.25 - $363.92
Q3 2020
Shares 15,678 Value ($000) $4,447 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 17,494 Value ($000) $4,680 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 14,820 Value ($000) $4,689 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 408 Value ($000) $121 Avg Close $277.46 Range $219.70 - $318.00
Q3 2019
Shares 396 Value ($000) $92 Avg Close $232.85 Range $215.78 - $246.99
Q2 2019
Shares 396 Value ($000) $93 Avg Close $230.90 Range $219.20 - $245.35
Q1 2019
Shares 396 Value ($000) $94 Avg Close $314.89 Range $216.12 - $344.00
Q4 2018
Shares 396 Value ($000) $119 Avg Close $319.14 Range $278.46 - $358.41
Q3 2018
Shares 396 Value ($000) $140 Avg Close $344.30 Range $288.13 - $388.67
Q2 2018
Shares 396 Value ($000) $115 Avg Close $281.15 Range $249.17 - $310.91
Q1 2018
Shares 396 Value ($000) $108 Avg Close $310.41 Range $259.76 - $370.57
Q4 2017
Shares 528 Value ($000) $168 Avg Close $320.80 Range $301.81 - $348.84
Q3 2017
Shares 528 Value ($000) $165 Avg Close $296.11 Range $269.50 - $330.00
Q2 2017
Shares 528 Value ($000) $143 Avg Close $264.42 Range $244.28 - $291.90
Q1 2017
Shares 396 Value ($000) $108 Avg Close $282.75 Range $260.50 - $301.42
Q4 2016
Shares 408 Value ($000) $116 Avg Close $296.43 Range $268.00 - $329.83
Q3 2016
Shares 396 Value ($000) $124 Avg Close $296.18 Range $240.07 - $333.65
Q2 2016
Shares 396 Value ($000) $96 Avg Close $263.54 Range $223.02 - $292.69
Q1 2016
Shares 396 Value ($000) $103 Avg Close $264.15 Range $242.07 - $301.02
Q4 2015
Shares 396 Value ($000) $121 Avg Close $287.35 Range $254.00 - $311.65
Q3 2015
Shares 396 Value ($000) $116 Avg Close $330.23 Range $265.00 - $412.24
Q2 2015
Shares 396 Value ($000) $160 Avg Close $401.33 Range $368.88 - $432.88
Q1 2015
Shares 396 Value ($000) $167 Avg Close $394.14 Range $334.40 - $480.18
Q4 2014
Shares 396 Value ($000) $134 Avg Close $323.51 Range $290.85 - $361.93
Q3 2014
Shares 396 Value ($000) $131 Avg Close $329.72 Range $298.31 - $349.00
Q2 2014
Shares 396 Value ($000) $125 Avg Close $300.97 Range $272.02 - $322.25
Q1 2014
Shares 396 Value ($000) $121 Avg Close $317.43 Range $270.62 - $358.89
Q4 2013
Shares 396 Value ($000) $111 Avg Close $258.65 Range $221.07 - $298.82
Q3 2013
Shares 396 Value ($000) $95 Avg Close $223.81 Range $203.55 - $248.95
Q2 2013
Shares 396 Value ($000) $85 Avg Close $213.68 Range $191.80 - $242.64