BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

TERRIL BROTHERS, INC.'s Holding History (CIK: 0000314169)

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

Q1 2019

Shares 52,251 Value ($000) $12,351 Avg Close $314.89 Range $216.12 - $344.00

Q4 2018

Shares 54,912 Value ($000) $16,524 Avg Close $319.14 Range $278.46 - $358.41

Q3 2018

Shares 55,048 Value ($000) $19,449 Avg Close $344.30 Range $288.13 - $388.67

Q2 2018

Shares 55,870 Value ($000) $16,216 Avg Close $281.15 Range $249.17 - $310.91

Q1 2018

Shares 56,436 Value ($000) $15,453 Avg Close $310.41 Range $259.76 - $370.57

Q4 2017

Shares 57,568 Value ($000) $18,339 Avg Close $320.80 Range $301.81 - $348.84

Q3 2017

Shares 57,915 Value ($000) $18,134 Avg Close $296.11 Range $269.50 - $330.00

Q2 2017

Shares 58,083 Value ($000) $15,761 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 58,581 Value ($000) $16,017 Avg Close $282.75 Range $260.50 - $301.42

Q4 2016

Shares 59,221 Value ($000) $16,794 Avg Close $296.43 Range $268.00 - $329.83

Q3 2016

Shares 60,311 Value ($000) $18,879 Avg Close $296.18 Range $240.07 - $333.65

Q2 2016

Shares 65,573 Value ($000) $15,859 Avg Close $263.54 Range $223.02 - $292.69

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	52,251	$12,351	$314.89	$216.12 - $344.00
Q4 2018	54,912	$16,524	$319.14	$278.46 - $358.41
Q3 2018	55,048	$19,449	$344.30	$288.13 - $388.67
Q2 2018	55,870	$16,216	$281.15	$249.17 - $310.91
Q1 2018	56,436	$15,453	$310.41	$259.76 - $370.57
Q4 2017	57,568	$18,339	$320.80	$301.81 - $348.84
Q3 2017	57,915	$18,134	$296.11	$269.50 - $330.00
Q2 2017	58,083	$15,761	$264.42	$244.28 - $291.90
Q1 2017	58,581	$16,017	$282.75	$260.50 - $301.42
Q4 2016	59,221	$16,794	$296.43	$268.00 - $329.83
Q3 2016	60,311	$18,879	$296.18	$240.07 - $333.65
Q2 2016	65,573	$15,859	$263.54	$223.02 - $292.69