BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Addison Advisors LLC's Holding History (CIK: 0001843745)

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

Q4 2025

Shares 151 Value ($000) $27 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 167 Value ($000) $23 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 126 Value ($000) $16 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 12 Value ($000) $2 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 86 Value ($000) $13 Avg Close $168.67 Range $145.07 - $195.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	151	$27	$163.37	$138.00 - $185.17
Q3 2025	167	$23	$135.17	$121.05 - $150.28
Q2 2025	126	$16	$124.60	$110.04 - $137.32
Q1 2025	12	$2	$142.96	$128.51 - $157.09
Q4 2024	86	$13	$168.67	$145.07 - $195.00