BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Progressive Investment Management Corp's Holding History (CIK: 0001353318)

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

Q4 2015

Shares 1,255 Value ($000) $384 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 1,255 Value ($000) $366 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 1,267 Value ($000) $512 Avg Close $401.33 Range $368.88 - $432.88

Q1 2015

Shares 1,300 Value ($000) $548 Avg Close $394.14 Range $334.40 - $480.18

Q4 2014

Shares 22,353 Value ($000) $7,588 Avg Close $323.51 Range $290.85 - $361.93

Q3 2014

Shares 21,998 Value ($000) $7,278 Avg Close $329.72 Range $298.31 - $349.00

Q2 2014

Shares 22,046 Value ($000) $6,952 Avg Close $300.97 Range $272.02 - $322.25

Q1 2014

Shares 21 Value ($000) $6 Avg Close $317.43 Range $270.62 - $358.89

Q4 2013

Shares 21 Value ($000) $6 Avg Close $258.65 Range $221.07 - $298.82

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2015	1,255	$384	$287.35	$254.00 - $311.65
Q3 2015	1,255	$366	$330.23	$265.00 - $412.24
Q2 2015	1,267	$512	$401.33	$368.88 - $432.88
Q1 2015	1,300	$548	$394.14	$334.40 - $480.18
Q4 2014	22,353	$7,588	$323.51	$290.85 - $361.93
Q3 2014	21,998	$7,278	$329.72	$298.31 - $349.00
Q2 2014	22,046	$6,952	$300.97	$272.02 - $322.25
Q1 2014	21	$6	$317.43	$270.62 - $358.89
Q4 2013	21	$6	$258.65	$221.07 - $298.82