BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

MARK SHEPTOFF FINANCIAL PLANNING, LLC's Holding History (CIK: 0001607355)

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

Q2 2021

Shares 300 Value ($000) $104 Avg Close $302.94 Range $257.03 - $468.55

Q1 2016

Shares 2 Value ($000) $1 Avg Close $264.15 Range $242.07 - $301.02

Q4 2015

Shares 2 Value ($000) $1 Avg Close $287.35 Range $254.00 - $311.65

Q3 2015

Shares 8 Value ($000) $2 Avg Close $330.23 Range $265.00 - $412.24

Q2 2015

Shares 2 Value ($000) $1 Avg Close $401.33 Range $368.88 - $432.88

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	300	$104	$302.94	$257.03 - $468.55
Q1 2016	2	$1	$264.15	$242.07 - $301.02
Q4 2015	2	$1	$287.35	$254.00 - $311.65
Q3 2015	8	$2	$330.23	$265.00 - $412.24
Q2 2015	2	$1	$401.33	$368.88 - $432.88