BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

AlphaQuest LLC's Holding History (CIK: 0001883897)

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

Q4 2025

Shares 2,799 Value ($000) $493 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 375 Value ($000) $53 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 11,164 Value ($000) $1,402 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 8,327 Value ($000) $1,139 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 20,831 Value ($000) $3,185 Avg Close $168.67 Range $145.07 - $195.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,799	$493	$163.37	$138.00 - $185.17
Q3 2025	375	$53	$135.17	$121.05 - $150.28
Q2 2025	11,164	$1,402	$124.60	$110.04 - $137.32
Q1 2025	8,327	$1,139	$142.96	$128.51 - $157.09
Q4 2024	20,831	$3,185	$168.67	$145.07 - $195.00