BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

LEUTHOLD GROUP, LLC's Holding History (CIK: 0001170152)

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

Q4 2025

Shares 32,589 Value ($000) $5,735 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 23,517 Value ($000) $3,294 Avg Close $135.17 Range $121.05 - $150.28

Q4 2020

Shares 10,358 Value ($000) $2,536 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 15,638 Value ($000) $4,436 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 16,449 Value ($000) $4,401 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 16,350 Value ($000) $5,173 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 17,863 Value ($000) $5,300 Avg Close $277.46 Range $219.70 - $318.00

Q2 2019

Shares 14,291 Value ($000) $3,342 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 15,063 Value ($000) $3,561 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 9,497 Value ($000) $2,858 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 10,100 Value ($000) $3,568 Avg Close $344.30 Range $288.13 - $388.67

Q4 2017

Shares 24,619 Value ($000) $7,843 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 18,971 Value ($000) $5,940 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 19,060 Value ($000) $5,172 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 20,088 Value ($000) $5,492 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 20,141 Value ($000) $5,712 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 21,722 Value ($000) $6,800 Avg Close $296.18 Range $240.07 - $333.65

Q1 2016

Shares 13,413 Value ($000) $3,492 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 13,139 Value ($000) $4,025 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 12,391 Value ($000) $3,616 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 14,499 Value ($000) $5,857 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 13,946 Value ($000) $5,889 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 13,880 Value ($000) $4,712 Avg Close $323.51 Range $290.85 - $361.93

Q2 2013

Shares 9,979 Value ($000) $2,147 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	32,589	$5,735	$163.37	$138.00 - $185.17
Q3 2025	23,517	$3,294	$135.17	$121.05 - $150.28
Q4 2020	10,358	$2,536	$259.08	$223.25 - $363.92
Q3 2020	15,638	$4,436	$278.91	$261.87 - $312.00
Q2 2020	16,449	$4,401	$300.59	$257.60 - $350.24
Q1 2020	16,350	$5,173	$303.47	$262.25 - $374.99
Q4 2019	17,863	$5,300	$277.46	$219.70 - $318.00
Q2 2019	14,291	$3,342	$230.90	$219.20 - $245.35
Q1 2019	15,063	$3,561	$314.89	$216.12 - $344.00
Q4 2018	9,497	$2,858	$319.14	$278.46 - $358.41
Q3 2018	10,100	$3,568	$344.30	$288.13 - $388.67
Q4 2017	24,619	$7,843	$320.80	$301.81 - $348.84
Q3 2017	18,971	$5,940	$296.11	$269.50 - $330.00
Q2 2017	19,060	$5,172	$264.42	$244.28 - $291.90
Q1 2017	20,088	$5,492	$282.75	$260.50 - $301.42
Q4 2016	20,141	$5,712	$296.43	$268.00 - $329.83
Q3 2016	21,722	$6,800	$296.18	$240.07 - $333.65
Q1 2016	13,413	$3,492	$264.15	$242.07 - $301.02
Q4 2015	13,139	$4,025	$287.35	$254.00 - $311.65
Q3 2015	12,391	$3,616	$330.23	$265.00 - $412.24
Q2 2015	14,499	$5,857	$401.33	$368.88 - $432.88
Q1 2015	13,946	$5,889	$394.14	$334.40 - $480.18
Q4 2014	13,880	$4,712	$323.51	$290.85 - $361.93
Q2 2013	9,979	$2,147	$213.68	$191.80 - $242.64