BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

BRAIDWELL LP's Holding History (CIK: 0001920938)

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

Q4 2025

Shares 115,700 Value ($000) $20,362 Avg Close $163.37 Range $138.00 - $185.17

Q2 2023

Shares 121,942 Value ($000) $34,735 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 220,742 Value ($000) $61,373 Avg Close $276.70 Range $254.80 - $295.90

Q4 2022

Shares 252,542 Value ($000) $69,934 Avg Close $282.44 Range $250.31 - $311.88

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	115,700	$20,362	$163.37	$138.00 - $185.17
Q2 2023	121,942	$34,735	$297.86	$273.39 - $319.76
Q1 2023	220,742	$61,373	$276.70	$254.80 - $295.90
Q4 2022	252,542	$69,934	$282.44	$250.31 - $311.88