BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Callan Family Office, LLC's Holding History (CIK: 0001938970)

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

Q4 2025

Shares 8,995 Value ($000) $1,583 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 2,152 Value ($000) $301 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 2,454 Value ($000) $308 Avg Close $124.60 Range $110.04 - $137.32

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	8,995	$1,583	$163.37	$138.00 - $185.17
Q3 2025	2,152	$301	$135.17	$121.05 - $150.28
Q2 2025	2,454	$308	$124.60	$110.04 - $137.32