BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Nippon Life Global Investors Americas, Inc.'s Holding History (CIK: 0001040190)

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

Q4 2025

Shares 26,490 Value ($000) $4,662 Avg Close $163.37 Range $138.00 - $185.17

Q4 2023

Shares 6,630 Value ($000) $1,716 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 6,630 Value ($000) $1,704 Avg Close $267.47 Range $251.85 - $287.60

Q3 2021

Shares 10,890 Value ($000) $3,081 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 12,410 Value ($000) $4,298 Avg Close $302.94 Range $257.03 - $468.55

Q3 2019

Shares 14,610 Value ($000) $3,402 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 14,610 Value ($000) $3,417 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 13,010 Value ($000) $3,076 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 13,010 Value ($000) $3,915 Avg Close $319.14 Range $278.46 - $358.41

Q4 2017

Shares 30,900 Value ($000) $9,843 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 27,670 Value ($000) $8,663 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 23,570 Value ($000) $6,396 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 23,570 Value ($000) $6,444 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 19,740 Value ($000) $5,598 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 19,740 Value ($000) $6,180 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 24,720 Value ($000) $5,978 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 25,670 Value ($000) $6,682 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 26,380 Value ($000) $8,081 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 21,600 Value ($000) $6,302 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 20,820 Value ($000) $8,409 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 7,400 Value ($000) $3,125 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 7,690 Value ($000) $2,610 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 6,770 Value ($000) $2,240 Avg Close $329.72 Range $298.31 - $349.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	26,490	$4,662	$163.37	$138.00 - $185.17
Q4 2023	6,630	$1,716	$245.62	$220.86 - $269.43
Q3 2023	6,630	$1,704	$267.47	$251.85 - $287.60
Q3 2021	10,890	$3,081	$327.75	$282.64 - $372.12
Q2 2021	12,410	$4,298	$302.94	$257.03 - $468.55
Q3 2019	14,610	$3,402	$232.85	$215.78 - $246.99
Q2 2019	14,610	$3,417	$230.90	$219.20 - $245.35
Q1 2019	13,010	$3,076	$314.89	$216.12 - $344.00
Q4 2018	13,010	$3,915	$319.14	$278.46 - $358.41
Q4 2017	30,900	$9,843	$320.80	$301.81 - $348.84
Q3 2017	27,670	$8,663	$296.11	$269.50 - $330.00
Q2 2017	23,570	$6,396	$264.42	$244.28 - $291.90
Q1 2017	23,570	$6,444	$282.75	$260.50 - $301.42
Q4 2016	19,740	$5,598	$296.43	$268.00 - $329.83
Q3 2016	19,740	$6,180	$296.18	$240.07 - $333.65
Q2 2016	24,720	$5,978	$263.54	$223.02 - $292.69
Q1 2016	25,670	$6,682	$264.15	$242.07 - $301.02
Q4 2015	26,380	$8,081	$287.35	$254.00 - $311.65
Q3 2015	21,600	$6,302	$330.23	$265.00 - $412.24
Q2 2015	20,820	$8,409	$401.33	$368.88 - $432.88
Q1 2015	7,400	$3,125	$394.14	$334.40 - $480.18
Q4 2014	7,690	$2,610	$323.51	$290.85 - $361.93
Q3 2014	6,770	$2,240	$329.72	$298.31 - $349.00