BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Nuveen, LLC's Holding History (CIK: 0001871926)

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

Q4 2025

Shares 375,557 Value ($000) $66,094 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 332,457 Value ($000) $46,571 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 341,659 Value ($000) $42,909 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 146,431 Value ($000) $12,486 Avg Close $142.96 Range $128.51 - $157.09

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	375,557	$66,094	$163.37	$138.00 - $185.17
Q3 2025	332,457	$46,571	$135.17	$121.05 - $150.28
Q2 2025	341,659	$42,909	$124.60	$110.04 - $137.32
Q1 2025	146,431	$12,486	$142.96	$128.51 - $157.09