BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Harfst & Associates, Inc.'s Holding History (CIK: 0001649147)

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

Q2 2017

Shares 148 Value ($000) $40 Avg Close $264.42 Range $244.28 - $291.90

Q1 2017

Shares 148 Value ($000) $40 Avg Close $282.75 Range $260.50 - $301.42

Q4 2015

Shares 148 Value ($000) $45 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 148 Value ($000) $43 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 204 Value ($000) $82 Avg Close $401.33 Range $368.88 - $432.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2017	148	$40	$264.42	$244.28 - $291.90
Q1 2017	148	$40	$282.75	$260.50 - $301.42
Q4 2015	148	$45	$287.35	$254.00 - $311.65
Q3 2015	148	$43	$330.23	$265.00 - $412.24
Q2 2015	204	$82	$401.33	$368.88 - $432.88