BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

ROYAL LONDON ASSET MANAGEMENT LTD's Holding History (CIK: 0000863748)

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

Q4 2025

Shares 64,565 Value ($000) $11,363 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 65,971 Value ($000) $9,241 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 67,746 Value ($000) $8,508 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 70,240 Value ($000) $9,612 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 64,957 Value ($000) $9,933 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 65,629 Value ($000) $12,722 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 69,572 Value ($000) $16,128 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 56,821 Value ($000) $12,252 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 57,215 Value ($000) $14,806 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 60,735 Value ($000) $15,613 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 70,230 Value ($000) $20,003 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 96,375 Value ($000) $26,795 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 140,818 Value ($000) $38,987 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 155,511 Value ($000) $41,533 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 103,898 Value ($000) $21,196 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 104,761 Value ($000) $22,073 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 100,934 Value ($000) $24,223 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 107,506 Value ($000) $30,417 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 110,978 Value ($000) $38,456 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 117,047 Value ($000) $32,757 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 113,072 Value ($000) $27,668 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 111,055 Value ($000) $31,370 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 113,032 Value ($000) $29,432 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 121,506 Value ($000) $38,381 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 119,491 Value ($000) $35,360 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 121,903 Value ($000) $28,391 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 122,889 Value ($000) $28,742 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 124,118 Value ($000) $29,334 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 114,736 Value ($000) $33,677 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 88,668 Value ($000) $31,332 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 91,370 Value ($000) $26,522 Avg Close $281.15 Range $249.17 - $310.91

Q2 2016

Shares 73,955 Value ($000) $17,886 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 14,185,230 Value ($000) $54 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 80,010 Value ($000) $24,667 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 84,002 Value ($000) $24,513 Avg Close $330.23 Range $265.00 - $412.24

Q4 2014

Shares 74,491 Value ($000) $254,934 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 58,019 Value ($000) $19,156 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 54,991 Value ($000) $17,883 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 55,237 Value ($000) $16,601 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 56,831 Value ($000) $17,010 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 55,095 Value ($000) $13,731 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 54,359 Value ($000) $11,356 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	64,565	$11,363	$163.37	$138.00 - $185.17
Q3 2025	65,971	$9,241	$135.17	$121.05 - $150.28
Q2 2025	67,746	$8,508	$124.60	$110.04 - $137.32
Q1 2025	70,240	$9,612	$142.96	$128.51 - $157.09
Q4 2024	64,957	$9,933	$168.67	$145.07 - $195.00
Q3 2024	65,629	$12,722	$209.21	$188.78 - $238.00
Q2 2024	69,572	$16,128	$217.32	$189.44 - $237.54
Q1 2024	56,821	$12,252	$234.20	$211.02 - $268.30
Q4 2023	57,215	$14,806	$245.62	$220.86 - $269.43
Q3 2023	60,735	$15,613	$267.47	$251.85 - $287.60
Q2 2023	70,230	$20,003	$297.86	$273.39 - $319.76
Q1 2023	96,375	$26,795	$276.70	$254.80 - $295.90
Q4 2022	140,818	$38,987	$282.44	$250.31 - $311.88
Q3 2022	155,511	$41,533	$212.38	$193.65 - $283.44
Q2 2022	103,898	$21,196	$204.43	$187.16 - $225.50
Q1 2022	104,761	$22,073	$217.46	$192.67 - $249.00
Q4 2021	100,934	$24,223	$257.12	$221.72 - $290.76
Q3 2021	107,506	$30,417	$327.75	$282.64 - $372.12
Q2 2021	110,978	$38,456	$302.94	$257.03 - $468.55
Q1 2021	117,047	$32,757	$269.69	$238.40 - $296.38
Q4 2020	113,072	$27,668	$259.08	$223.25 - $363.92
Q3 2020	111,055	$31,370	$278.91	$261.87 - $312.00
Q2 2020	113,032	$29,432	$300.59	$257.60 - $350.24
Q1 2020	121,506	$38,381	$303.47	$262.25 - $374.99
Q4 2019	119,491	$35,360	$277.46	$219.70 - $318.00
Q3 2019	121,903	$28,391	$232.85	$215.78 - $246.99
Q2 2019	122,889	$28,742	$230.90	$219.20 - $245.35
Q1 2019	124,118	$29,334	$314.89	$216.12 - $344.00
Q4 2018	114,736	$33,677	$319.14	$278.46 - $358.41
Q3 2018	88,668	$31,332	$344.30	$288.13 - $388.67
Q2 2018	91,370	$26,522	$281.15	$249.17 - $310.91
Q2 2016	73,955	$17,886	$263.54	$223.02 - $292.69
Q1 2016	14,185,230	$54	$264.15	$242.07 - $301.02
Q4 2015	80,010	$24,667	$287.35	$254.00 - $311.65
Q3 2015	84,002	$24,513	$330.23	$265.00 - $412.24
Q4 2014	74,491	$254,934	$323.51	$290.85 - $361.93
Q3 2014	58,019	$19,156	$329.72	$298.31 - $349.00
Q2 2014	54,991	$17,883	$300.97	$272.02 - $322.25
Q1 2014	55,237	$16,601	$317.43	$270.62 - $358.89
Q4 2013	56,831	$17,010	$258.65	$221.07 - $298.82
Q3 2013	55,095	$13,731	$223.81	$203.55 - $248.95
Q2 2013	54,359	$11,356	$213.68	$191.80 - $242.64