BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

MIRAE ASSET SECURITIES (USA) INC.'s Holding History (CIK: 0000890203)

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

Q2 2025

Shares 23,059 Value ($000) $2,896 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 21,454 Value ($000) $2,936 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 40,104 Value ($000) $6,133 Avg Close $168.67 Range $145.07 - $195.00

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	23,059	$2,896	$124.60	$110.04 - $137.32
Q1 2025	21,454	$2,936	$142.96	$128.51 - $157.09
Q4 2024	40,104	$6,133	$168.67	$145.07 - $195.00