BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ALLSTATE CORP's Holding History (CIK: 0000899051)

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

Q4 2025

Shares 9,672 Value ($000) $1,702 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 4,700 Value ($000) $658 Avg Close $135.17 Range $121.05 - $150.28

Q1 2025

Shares 4,589 Value ($000) $628 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 4,298 Value ($000) $657 Avg Close $168.67 Range $145.07 - $195.00

Q4 2022

Shares 5,784 Value ($000) $1,602 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 3,145 Value ($000) $840 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 5,819 Value ($000) $1,187 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 7,568 Value ($000) $1,594 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 2,382 Value ($000) $571 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 2,778 Value ($000) $786 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 2,895 Value ($000) $1,002 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 2,859 Value ($000) $800 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 2,542 Value ($000) $622 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 2,587 Value ($000) $734 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 4,677 Value ($000) $1,251 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 5,403 Value ($000) $1,709 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 16,899 Value ($000) $5,014 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 15,687 Value ($000) $3,652 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 14,552 Value ($000) $3,403 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 15,818 Value ($000) $3,739 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 15,411 Value ($000) $4,637 Avg Close $319.14 Range $278.46 - $358.41

Q2 2017

Shares 7,878 Value ($000) $2,138 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 7,878 Value ($000) $2,154 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 17,285 Value ($000) $4,902 Avg Close $296.43 Range $268.00 - $329.83

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	9,672	$1,702	$163.37	$138.00 - $185.17
Q3 2025	4,700	$658	$135.17	$121.05 - $150.28
Q1 2025	4,589	$628	$142.96	$128.51 - $157.09
Q4 2024	4,298	$657	$168.67	$145.07 - $195.00
Q4 2022	5,784	$1,602	$282.44	$250.31 - $311.88
Q3 2022	3,145	$840	$212.38	$193.65 - $283.44
Q2 2022	5,819	$1,187	$204.43	$187.16 - $225.50
Q1 2022	7,568	$1,594	$217.46	$192.67 - $249.00
Q4 2021	2,382	$571	$257.12	$221.72 - $290.76
Q3 2021	2,778	$786	$327.75	$282.64 - $372.12
Q2 2021	2,895	$1,002	$302.94	$257.03 - $468.55
Q1 2021	2,859	$800	$269.69	$238.40 - $296.38
Q4 2020	2,542	$622	$259.08	$223.25 - $363.92
Q3 2020	2,587	$734	$278.91	$261.87 - $312.00
Q2 2020	4,677	$1,251	$300.59	$257.60 - $350.24
Q1 2020	5,403	$1,709	$303.47	$262.25 - $374.99
Q4 2019	16,899	$5,014	$277.46	$219.70 - $318.00
Q3 2019	15,687	$3,652	$232.85	$215.78 - $246.99
Q2 2019	14,552	$3,403	$230.90	$219.20 - $245.35
Q1 2019	15,818	$3,739	$314.89	$216.12 - $344.00
Q4 2018	15,411	$4,637	$319.14	$278.46 - $358.41
Q2 2017	7,878	$2,138	$264.42	$244.28 - $291.90
Q1 2017	7,878	$2,154	$282.75	$260.50 - $301.42
Q4 2016	17,285	$4,902	$296.43	$268.00 - $329.83