BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

NOMURA HOLDINGS INC's Holding History (CIK: 0001163653)

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

Q4 2025

Shares 147,261 Value ($000) $25,916 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 122,902 Value ($000) $17,216 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 120,815 Value ($000) $15,173 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 213,770 Value ($000) $29,252 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 218,880 Value ($000) $33,471 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 9,267 Value ($000) $1,796 Avg Close $209.21 Range $188.78 - $238.00

Q4 2023

Shares 2,924 Value ($000) $757 Avg Close $245.62 Range $220.86 - $269.43

Q2 2023

Shares 2,769 Value ($000) $789 Avg Close $297.86 Range $273.39 - $319.76

Q4 2022

Shares 18,505 Value ($000) $5 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 17,728 Value ($000) $4,685 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 15,267 Value ($000) $3,279 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 17,871 Value ($000) $3,841 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 33,227 Value ($000) $7,990 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 13,434 Value ($000) $3,899 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 45,045 Value ($000) $16,071 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 356 Value ($000) $100 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 33,946 Value ($000) $8,314 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 1,798 Value ($000) $507 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 55,390 Value ($000) $14,959 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 6,457 Value ($000) $2,025 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 75,654 Value ($000) $21,915 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 215,987 Value ($000) $49,532 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 57,394 Value ($000) $13,542 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 38,616 Value ($000) $8,914 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 24,881 Value ($000) $7,595 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 66,373 Value ($000) $23,296 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 16,961 Value ($000) $4,923 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 20,694 Value ($000) $5,681 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 25,842 Value ($000) $8,244 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 12,328 Value ($000) $3,867 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 17,558 Value ($000) $4,716 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 35,785 Value ($000) $9,785 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 54,524 Value ($000) $15,582 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 1,086 Value ($000) $337 Avg Close $296.18 Range $240.07 - $333.65

Q1 2016

Shares 1,893 Value ($000) $487 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 22,518 Value ($000) $6,904 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 26,978 Value ($000) $7,899 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 20,738 Value ($000) $8,312 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 1,945 Value ($000) $801 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 20,221 Value ($000) $6,853 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 23,605 Value ($000) $7,785 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 9,381 Value ($000) $3,011 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 49,248 Value ($000) $15,359 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 43,442 Value ($000) $12,127 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 38,461 Value ($000) $9,169 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 23,121 Value ($000) $4,998 Avg Close $213.68 Range $191.80 - $242.64

Q1 2013

Shares 23,655 Value ($000) $4,496 Avg Close $161.63 Range $139.72 - $192.92

Q4 2012

Shares 24,447 Value ($000) $3,592 Avg Close — Range —

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	147,261	$25,916	$163.37	$138.00 - $185.17
Q3 2025	122,902	$17,216	$135.17	$121.05 - $150.28
Q2 2025	120,815	$15,173	$124.60	$110.04 - $137.32
Q1 2025	213,770	$29,252	$142.96	$128.51 - $157.09
Q4 2024	218,880	$33,471	$168.67	$145.07 - $195.00
Q3 2024	9,267	$1,796	$209.21	$188.78 - $238.00
Q4 2023	2,924	$757	$245.62	$220.86 - $269.43
Q2 2023	2,769	$789	$297.86	$273.39 - $319.76
Q4 2022	18,505	$5	$282.44	$250.31 - $311.88
Q3 2022	17,728	$4,685	$212.38	$193.65 - $283.44
Q2 2022	15,267	$3,279	$204.43	$187.16 - $225.50
Q1 2022	17,871	$3,841	$217.46	$192.67 - $249.00
Q4 2021	33,227	$7,990	$257.12	$221.72 - $290.76
Q3 2021	13,434	$3,899	$327.75	$282.64 - $372.12
Q2 2021	45,045	$16,071	$302.94	$257.03 - $468.55
Q1 2021	356	$100	$269.69	$238.40 - $296.38
Q4 2020	33,946	$8,314	$259.08	$223.25 - $363.92
Q3 2020	1,798	$507	$278.91	$261.87 - $312.00
Q2 2020	55,390	$14,959	$300.59	$257.60 - $350.24
Q1 2020	6,457	$2,025	$303.47	$262.25 - $374.99
Q4 2019	75,654	$21,915	$277.46	$219.70 - $318.00
Q3 2019	215,987	$49,532	$232.85	$215.78 - $246.99
Q2 2019	57,394	$13,542	$230.90	$219.20 - $245.35
Q1 2019	38,616	$8,914	$314.89	$216.12 - $344.00
Q4 2018	24,881	$7,595	$319.14	$278.46 - $358.41
Q3 2018	66,373	$23,296	$344.30	$288.13 - $388.67
Q2 2018	16,961	$4,923	$281.15	$249.17 - $310.91
Q1 2018	20,694	$5,681	$310.41	$259.76 - $370.57
Q4 2017	25,842	$8,244	$320.80	$301.81 - $348.84
Q3 2017	12,328	$3,867	$296.11	$269.50 - $330.00
Q2 2017	17,558	$4,716	$264.42	$244.28 - $291.90
Q1 2017	35,785	$9,785	$282.75	$260.50 - $301.42
Q4 2016	54,524	$15,582	$296.43	$268.00 - $329.83
Q3 2016	1,086	$337	$296.18	$240.07 - $333.65
Q1 2016	1,893	$487	$264.15	$242.07 - $301.02
Q4 2015	22,518	$6,904	$287.35	$254.00 - $311.65
Q3 2015	26,978	$7,899	$330.23	$265.00 - $412.24
Q2 2015	20,738	$8,312	$401.33	$368.88 - $432.88
Q1 2015	1,945	$801	$394.14	$334.40 - $480.18
Q4 2014	20,221	$6,853	$323.51	$290.85 - $361.93
Q3 2014	23,605	$7,785	$329.72	$298.31 - $349.00
Q2 2014	9,381	$3,011	$300.97	$272.02 - $322.25
Q1 2014	49,248	$15,359	$317.43	$270.62 - $358.89
Q4 2013	43,442	$12,127	$258.65	$221.07 - $298.82
Q3 2013	38,461	$9,169	$223.81	$203.55 - $248.95
Q2 2013	23,121	$4,998	$213.68	$191.80 - $242.64
Q1 2013	23,655	$4,496	$161.63	$139.72 - $192.92
Q4 2012	24,447	$3,592	—	—