BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

SEGALL BRYANT & HAMILL, LLC's Holding History (CIK: 0001006378)

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

Q2 2023

Shares 9,051 Value ($000) $2,578 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 9,265 Value ($000) $3 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 9,515 Value ($000) $3 Avg Close $282.44 Range $250.31 - $311.88

Q2 2022

Shares 9,710 Value ($000) $1,979 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 9,797 Value ($000) $2,065 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 15,797 Value ($000) $3,791 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 16,020 Value ($000) $4,535 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 16,020 Value ($000) $5,549 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 16,040 Value ($000) $4,488 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 16,070 Value ($000) $3,932 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 16,070 Value ($000) $4,559 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 9,740 Value ($000) $2,606 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 16,040 Value ($000) $5,077 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 16,402 Value ($000) $4,869 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 16,452 Value ($000) $3,830 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 16,532 Value ($000) $3,865 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 14,495 Value ($000) $3,424 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 14,660 Value ($000) $4,411 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 14,779 Value ($000) $5,222 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 14,825 Value ($000) $4,303 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 14,534 Value ($000) $3,980 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 14,534 Value ($000) $4,630 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 15,130 Value ($000) $4,738 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 15,178 Value ($000) $4,119 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 15,552 Value ($000) $4,252 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 15,527 Value ($000) $4,403 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 20,806 Value ($000) $6,513 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 22,108 Value ($000) $5,346 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 22,321 Value ($000) $5,811 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 22,336 Value ($000) $6,843 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 22,415 Value ($000) $6,541 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 22,663 Value ($000) $9,154 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 22,586 Value ($000) $9,537 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 22,899 Value ($000) $7,773 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 15,783 Value ($000) $5,221 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 15,812 Value ($000) $4,986 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 15,931 Value ($000) $4,873 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 16,110 Value ($000) $4,504 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 15,950 Value ($000) $3,840 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 16,143 Value ($000) $3,474 Avg Close $213.68 Range $191.80 - $242.64

Q1 2013

Shares 17,221 Value ($000) $3,317 Avg Close $161.63 Range $139.72 - $192.92

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2023	9,051	$2,578	$297.86	$273.39 - $319.76
Q1 2023	9,265	$3	$276.70	$254.80 - $295.90
Q4 2022	9,515	$3	$282.44	$250.31 - $311.88
Q2 2022	9,710	$1,979	$204.43	$187.16 - $225.50
Q1 2022	9,797	$2,065	$217.46	$192.67 - $249.00
Q4 2021	15,797	$3,791	$257.12	$221.72 - $290.76
Q3 2021	16,020	$4,535	$327.75	$282.64 - $372.12
Q2 2021	16,020	$5,549	$302.94	$257.03 - $468.55
Q1 2021	16,040	$4,488	$269.69	$238.40 - $296.38
Q4 2020	16,070	$3,932	$259.08	$223.25 - $363.92
Q3 2020	16,070	$4,559	$278.91	$261.87 - $312.00
Q2 2020	9,740	$2,606	$300.59	$257.60 - $350.24
Q1 2020	16,040	$5,077	$303.47	$262.25 - $374.99
Q4 2019	16,402	$4,869	$277.46	$219.70 - $318.00
Q3 2019	16,452	$3,830	$232.85	$215.78 - $246.99
Q2 2019	16,532	$3,865	$230.90	$219.20 - $245.35
Q1 2019	14,495	$3,424	$314.89	$216.12 - $344.00
Q4 2018	14,660	$4,411	$319.14	$278.46 - $358.41
Q3 2018	14,779	$5,222	$344.30	$288.13 - $388.67
Q2 2018	14,825	$4,303	$281.15	$249.17 - $310.91
Q1 2018	14,534	$3,980	$310.41	$259.76 - $370.57
Q4 2017	14,534	$4,630	$320.80	$301.81 - $348.84
Q3 2017	15,130	$4,738	$296.11	$269.50 - $330.00
Q2 2017	15,178	$4,119	$264.42	$244.28 - $291.90
Q1 2017	15,552	$4,252	$282.75	$260.50 - $301.42
Q4 2016	15,527	$4,403	$296.43	$268.00 - $329.83
Q3 2016	20,806	$6,513	$296.18	$240.07 - $333.65
Q2 2016	22,108	$5,346	$263.54	$223.02 - $292.69
Q1 2016	22,321	$5,811	$264.15	$242.07 - $301.02
Q4 2015	22,336	$6,843	$287.35	$254.00 - $311.65
Q3 2015	22,415	$6,541	$330.23	$265.00 - $412.24
Q2 2015	22,663	$9,154	$401.33	$368.88 - $432.88
Q1 2015	22,586	$9,537	$394.14	$334.40 - $480.18
Q4 2014	22,899	$7,773	$323.51	$290.85 - $361.93
Q3 2014	15,783	$5,221	$329.72	$298.31 - $349.00
Q2 2014	15,812	$4,986	$300.97	$272.02 - $322.25
Q1 2014	15,931	$4,873	$317.43	$270.62 - $358.89
Q4 2013	16,110	$4,504	$258.65	$221.07 - $298.82
Q3 2013	15,950	$3,840	$223.81	$203.55 - $248.95
Q2 2013	16,143	$3,474	$213.68	$191.80 - $242.64
Q1 2013	17,221	$3,317	$161.63	$139.72 - $192.92