BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

CERTUITY, LLC's Holding History (CIK: 0001800752)

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

Q4 2023

Shares 947 Value ($000) $245 Avg Close $245.62 Range $220.86 - $269.43

Q3 2023

Shares 915 Value ($000) $233 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 897 Value ($000) $253 Avg Close $297.86 Range $273.39 - $319.76

Q2 2021

Shares 642 Value ($000) $222 Avg Close $302.94 Range $257.03 - $468.55

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2023	947	$245	$245.62	$220.86 - $269.43
Q3 2023	915	$233	$267.47	$251.85 - $287.60
Q2 2023	897	$253	$297.86	$273.39 - $319.76
Q2 2021	642	$222	$302.94	$257.03 - $468.55