BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

HAZLETT, BURT & WATSON, INC.'s Holding History (CIK: 0000046392)

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

Q3 2025

Shares 10 Value ($000) $0 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 10 Value ($000) $0 Avg Close $124.60 Range $110.04 - $137.32

Q3 2024

Shares 37 Value ($000) $0 Avg Close $209.21 Range $188.78 - $238.00

Q3 2023

Shares 35 Value ($000) $0 Avg Close $267.47 Range $251.85 - $287.60

Q2 2023

Shares 10 Value ($000) $0 Avg Close $297.86 Range $273.39 - $319.76

Q1 2023

Shares 10 Value ($000) $0 Avg Close $276.70 Range $254.80 - $295.90

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	10	$0	$135.17	$121.05 - $150.28
Q2 2025	10	$0	$124.60	$110.04 - $137.32
Q3 2024	37	$0	$209.21	$188.78 - $238.00
Q3 2023	35	$0	$267.47	$251.85 - $287.60
Q2 2023	10	$0	$297.86	$273.39 - $319.76
Q1 2023	10	$0	$276.70	$254.80 - $295.90