BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

PINNACLE ASSOCIATES LTD's Holding History (CIK: 0000743127)

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

Q4 2025

Shares 4,155 Value ($000) $731 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 4,148 Value ($000) $581 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 4,519 Value ($000) $568 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 4,417 Value ($000) $604 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 4,254 Value ($000) $651 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 4,557 Value ($000) $1,179 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 4,630 Value ($000) $1,073 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 4,761 Value ($000) $1,027 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 4,557 Value ($000) $1,179 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 4,541 Value ($000) $1,167 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 4,429 Value ($000) $1,262 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 4,419 Value ($000) $1,229 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 4,607 Value ($000) $1,276 Avg Close $282.44 Range $250.31 - $311.88

Q3 2022

Shares 4,602 Value ($000) $1,229 Avg Close $212.38 Range $193.65 - $283.44

Q2 2022

Shares 4,535 Value ($000) $925 Avg Close $204.43 Range $187.16 - $225.50

Q1 2022

Shares 4,510 Value ($000) $950 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 5,482 Value ($000) $1,315 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 5,406 Value ($000) $1,530 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 4,642 Value ($000) $1,607 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 5,534 Value ($000) $1,548 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 5,849 Value ($000) $1,432 Avg Close $259.08 Range $223.25 - $363.92

Q3 2020

Shares 6,446 Value ($000) $1,829 Avg Close $278.91 Range $261.87 - $312.00

Q2 2020

Shares 6,439 Value ($000) $1,723 Avg Close $300.59 Range $257.60 - $350.24

Q1 2020

Shares 6,145 Value ($000) $1,944 Avg Close $303.47 Range $262.25 - $374.99

Q4 2019

Shares 5,974 Value ($000) $1,773 Avg Close $277.46 Range $219.70 - $318.00

Q3 2019

Shares 8,819 Value ($000) $2,053 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 8,677 Value ($000) $2,029 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 12,766 Value ($000) $3,018 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 12,958 Value ($000) $3,899 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 13,964 Value ($000) $4,934 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 14,908 Value ($000) $4,327 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 15,127 Value ($000) $4,142 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 13,343 Value ($000) $4,251 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 9,252 Value ($000) $2,897 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 9,315 Value ($000) $2,528 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 9,153 Value ($000) $2,503 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 10,668 Value ($000) $3,025 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 11,878 Value ($000) $3,718 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 11,861 Value ($000) $2,868 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 11,926 Value ($000) $3,105 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 11,901 Value ($000) $3,646 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 11,422 Value ($000) $3,333 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 8,759 Value ($000) $3,538 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 6,465 Value ($000) $2,730 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 6,849 Value ($000) $2,325 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 6,804 Value ($000) $2,251 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 6,879 Value ($000) $2,169 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 7,211 Value ($000) $2,206 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 6,636 Value ($000) $1,855 Avg Close $258.65 Range $221.07 - $298.82

Q3 2013

Shares 6,516 Value ($000) $1,569 Avg Close $223.81 Range $203.55 - $248.95

Q2 2013

Shares 5,581 Value ($000) $1,201 Avg Close $213.68 Range $191.80 - $242.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	4,155	$731	$163.37	$138.00 - $185.17
Q3 2025	4,148	$581	$135.17	$121.05 - $150.28
Q2 2025	4,519	$568	$124.60	$110.04 - $137.32
Q1 2025	4,417	$604	$142.96	$128.51 - $157.09
Q4 2024	4,254	$651	$168.67	$145.07 - $195.00
Q3 2024	4,557	$1,179	$209.21	$188.78 - $238.00
Q2 2024	4,630	$1,073	$217.32	$189.44 - $237.54
Q1 2024	4,761	$1,027	$234.20	$211.02 - $268.30
Q4 2023	4,557	$1,179	$245.62	$220.86 - $269.43
Q3 2023	4,541	$1,167	$267.47	$251.85 - $287.60
Q2 2023	4,429	$1,262	$297.86	$273.39 - $319.76
Q1 2023	4,419	$1,229	$276.70	$254.80 - $295.90
Q4 2022	4,607	$1,276	$282.44	$250.31 - $311.88
Q3 2022	4,602	$1,229	$212.38	$193.65 - $283.44
Q2 2022	4,535	$925	$204.43	$187.16 - $225.50
Q1 2022	4,510	$950	$217.46	$192.67 - $249.00
Q4 2021	5,482	$1,315	$257.12	$221.72 - $290.76
Q3 2021	5,406	$1,530	$327.75	$282.64 - $372.12
Q2 2021	4,642	$1,607	$302.94	$257.03 - $468.55
Q1 2021	5,534	$1,548	$269.69	$238.40 - $296.38
Q4 2020	5,849	$1,432	$259.08	$223.25 - $363.92
Q3 2020	6,446	$1,829	$278.91	$261.87 - $312.00
Q2 2020	6,439	$1,723	$300.59	$257.60 - $350.24
Q1 2020	6,145	$1,944	$303.47	$262.25 - $374.99
Q4 2019	5,974	$1,773	$277.46	$219.70 - $318.00
Q3 2019	8,819	$2,053	$232.85	$215.78 - $246.99
Q2 2019	8,677	$2,029	$230.90	$219.20 - $245.35
Q1 2019	12,766	$3,018	$314.89	$216.12 - $344.00
Q4 2018	12,958	$3,899	$319.14	$278.46 - $358.41
Q3 2018	13,964	$4,934	$344.30	$288.13 - $388.67
Q2 2018	14,908	$4,327	$281.15	$249.17 - $310.91
Q1 2018	15,127	$4,142	$310.41	$259.76 - $370.57
Q4 2017	13,343	$4,251	$320.80	$301.81 - $348.84
Q3 2017	9,252	$2,897	$296.11	$269.50 - $330.00
Q2 2017	9,315	$2,528	$264.42	$244.28 - $291.90
Q1 2017	9,153	$2,503	$282.75	$260.50 - $301.42
Q4 2016	10,668	$3,025	$296.43	$268.00 - $329.83
Q3 2016	11,878	$3,718	$296.18	$240.07 - $333.65
Q2 2016	11,861	$2,868	$263.54	$223.02 - $292.69
Q1 2016	11,926	$3,105	$264.15	$242.07 - $301.02
Q4 2015	11,901	$3,646	$287.35	$254.00 - $311.65
Q3 2015	11,422	$3,333	$330.23	$265.00 - $412.24
Q2 2015	8,759	$3,538	$401.33	$368.88 - $432.88
Q1 2015	6,465	$2,730	$394.14	$334.40 - $480.18
Q4 2014	6,849	$2,325	$323.51	$290.85 - $361.93
Q3 2014	6,804	$2,251	$329.72	$298.31 - $349.00
Q2 2014	6,879	$2,169	$300.97	$272.02 - $322.25
Q1 2014	7,211	$2,206	$317.43	$270.62 - $358.89
Q4 2013	6,636	$1,855	$258.65	$221.07 - $298.82
Q3 2013	6,516	$1,569	$223.81	$203.55 - $248.95
Q2 2013	5,581	$1,201	$213.68	$191.80 - $242.64