BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

1832 Asset Management L.P.'s Holding History (CIK: 0000944388)

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

Q3 2023

Shares 5 Value ($000) $1 Avg Close $267.47 Range $251.85 - $287.60

Q3 2022

Shares 35,700 Value ($000) $9,532 Avg Close $212.38 Range $193.65 - $283.44

Q1 2022

Shares 10 Value ($000) $2 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 10 Value ($000) $2 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 1,092 Value ($000) $314 Avg Close $327.75 Range $282.64 - $372.12

Q1 2020

Shares 43,700 Value ($000) $13,911 Avg Close $303.47 Range $262.25 - $374.99

Q2 2019

Shares 4,500 Value ($000) $1,080 Avg Close $230.90 Range $219.20 - $245.35

Q1 2019

Shares 27 Value ($000) $6 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 5 Value ($000) $2 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 32,631 Value ($000) $11,379 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 19,860 Value ($000) $5,735 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 51,734 Value ($000) $13,977 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 62,700 Value ($000) $19,841 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 163,886 Value ($000) $49,702 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 137,000 Value ($000) $37,221 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 118,600 Value ($000) $32,489 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 176,320 Value ($000) $53,921 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 176,320 Value ($000) $55,191 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 199,000 Value ($000) $48,440 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 193,020 Value ($000) $82,568 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 197,800 Value ($000) $61,186 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 172,340 Value ($000) $50,478 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 206,789 Value ($000) $83,433 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 429,921 Value ($000) $179,934 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 166,001 Value ($000) $56,291 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 461,881 Value ($000) $152,191 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 411,515 Value ($000) $129,251 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 221,700 Value ($000) $64,366 Avg Close $317.43 Range $270.62 - $358.89

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2023	5	$1	$267.47	$251.85 - $287.60
Q3 2022	35,700	$9,532	$212.38	$193.65 - $283.44
Q1 2022	10	$2	$217.46	$192.67 - $249.00
Q4 2021	10	$2	$257.12	$221.72 - $290.76
Q3 2021	1,092	$314	$327.75	$282.64 - $372.12
Q1 2020	43,700	$13,911	$303.47	$262.25 - $374.99
Q2 2019	4,500	$1,080	$230.90	$219.20 - $245.35
Q1 2019	27	$6	$314.89	$216.12 - $344.00
Q4 2018	5	$2	$319.14	$278.46 - $358.41
Q3 2018	32,631	$11,379	$344.30	$288.13 - $388.67
Q2 2018	19,860	$5,735	$281.15	$249.17 - $310.91
Q1 2018	51,734	$13,977	$310.41	$259.76 - $370.57
Q4 2017	62,700	$19,841	$320.80	$301.81 - $348.84
Q3 2017	163,886	$49,702	$296.11	$269.50 - $330.00
Q2 2017	137,000	$37,221	$264.42	$244.28 - $291.90
Q1 2017	118,600	$32,489	$282.75	$260.50 - $301.42
Q4 2016	176,320	$53,921	$296.43	$268.00 - $329.83
Q3 2016	176,320	$55,191	$296.18	$240.07 - $333.65
Q2 2016	199,000	$48,440	$263.54	$223.02 - $292.69
Q1 2016	193,020	$82,568	$264.15	$242.07 - $301.02
Q4 2015	197,800	$61,186	$287.35	$254.00 - $311.65
Q3 2015	172,340	$50,478	$330.23	$265.00 - $412.24
Q2 2015	206,789	$83,433	$401.33	$368.88 - $432.88
Q1 2015	429,921	$179,934	$394.14	$334.40 - $480.18
Q4 2014	166,001	$56,291	$323.51	$290.85 - $361.93
Q3 2014	461,881	$152,191	$329.72	$298.31 - $349.00
Q2 2014	411,515	$129,251	$300.97	$272.02 - $322.25
Q1 2014	221,700	$64,366	$317.43	$270.62 - $358.89