BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Riggs Asset Managment Co. Inc.'s Holding History (CIK: 0001601348)

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

Q2 2025

Shares 4 Value ($000) $1 Avg Close $124.60 Range $110.04 - $137.32

Q1 2022

Shares 10 Value ($000) $2 Avg Close $217.46 Range $192.67 - $249.00

Q4 2021

Shares 10 Value ($000) $2 Avg Close $257.12 Range $221.72 - $290.76

Q3 2021

Shares 10 Value ($000) $3 Avg Close $327.75 Range $282.64 - $372.12

Q2 2021

Shares 10 Value ($000) $3 Avg Close $302.94 Range $257.03 - $468.55

Q1 2021

Shares 10 Value ($000) $3 Avg Close $269.69 Range $238.40 - $296.38

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	4	$1	$124.60	$110.04 - $137.32
Q1 2022	10	$2	$217.46	$192.67 - $249.00
Q4 2021	10	$2	$257.12	$221.72 - $290.76
Q3 2021	10	$3	$327.75	$282.64 - $372.12
Q2 2021	10	$3	$302.94	$257.03 - $468.55
Q1 2021	10	$3	$269.69	$238.40 - $296.38