BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

SummitTX Capital, L.P.'s Holding History (CIK: 0002052310)

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

Q3 2025

Shares 17,379 Value ($000) $2,434 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 54,970 Value ($000) $6,904 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 11,682 Value ($000) $1,599 Avg Close $142.96 Range $128.51 - $157.09

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	17,379	$2,434	$135.17	$121.05 - $150.28
Q2 2025	54,970	$6,904	$124.60	$110.04 - $137.32
Q1 2025	11,682	$1,599	$142.96	$128.51 - $157.09