BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Laurion Capital Management LP's Holding History (CIK: 0001390202)

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

Q4 2025

Shares 5,033 Value ($000) $886 Avg Close $163.37 Range $138.00 - $185.17

Q1 2022

Shares 1,400 Value ($000) $295 Avg Close $217.46 Range $192.67 - $249.00

Q1 2021

Shares 4,039 Value ($000) $1,130 Avg Close $269.69 Range $238.40 - $296.38

Q4 2020

Shares 5,241 Value ($000) $1,283 Avg Close $259.08 Range $223.25 - $363.92

Q2 2020

Shares 1,878 Value ($000) $502 Avg Close $300.59 Range $257.60 - $350.24

Q3 2019

Shares 50,255 Value ($000) $11,701 Avg Close $232.85 Range $215.78 - $246.99

Q2 2019

Shares 14,963 Value ($000) $3,499 Avg Close $230.90 Range $219.20 - $245.35

Q4 2018

Shares 131,657 Value ($000) $39,619 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 10,006 Value ($000) $3,535 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 5,200 Value ($000) $1,510 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 4,100 Value ($000) $1,123 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 10,923 Value ($000) $3,480 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 25,331 Value ($000) $7,932 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 30,323 Value ($000) $8,229 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 30,723 Value ($000) $8,400 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 16,744 Value ($000) $4,748 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 82,850 Value ($000) $25,935 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 5,000 Value ($000) $1,209 Avg Close $263.54 Range $223.02 - $292.69

Q1 2016

Shares 3,200 Value ($000) $833 Avg Close $264.15 Range $242.07 - $301.02

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	5,033	$886	$163.37	$138.00 - $185.17
Q1 2022	1,400	$295	$217.46	$192.67 - $249.00
Q1 2021	4,039	$1,130	$269.69	$238.40 - $296.38
Q4 2020	5,241	$1,283	$259.08	$223.25 - $363.92
Q2 2020	1,878	$502	$300.59	$257.60 - $350.24
Q3 2019	50,255	$11,701	$232.85	$215.78 - $246.99
Q2 2019	14,963	$3,499	$230.90	$219.20 - $245.35
Q4 2018	131,657	$39,619	$319.14	$278.46 - $358.41
Q3 2018	10,006	$3,535	$344.30	$288.13 - $388.67
Q2 2018	5,200	$1,510	$281.15	$249.17 - $310.91
Q1 2018	4,100	$1,123	$310.41	$259.76 - $370.57
Q4 2017	10,923	$3,480	$320.80	$301.81 - $348.84
Q3 2017	25,331	$7,932	$296.11	$269.50 - $330.00
Q2 2017	30,323	$8,229	$264.42	$244.28 - $291.90
Q1 2017	30,723	$8,400	$282.75	$260.50 - $301.42
Q4 2016	16,744	$4,748	$296.43	$268.00 - $329.83
Q3 2016	82,850	$25,935	$296.18	$240.07 - $333.65
Q2 2016	5,000	$1,209	$263.54	$223.02 - $292.69
Q1 2016	3,200	$833	$264.15	$242.07 - $301.02