BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Headlands Technologies LLC's Holding History (CIK: 0001570271)

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

Q2 2025

Shares 22,791 Value ($000) $2,862 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 24,769 Value ($000) $3,389 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 28,377 Value ($000) $4,339 Avg Close $168.67 Range $145.07 - $195.00

Q3 2024

Shares 1,248 Value ($000) $242 Avg Close $209.21 Range $188.78 - $238.00

Q4 2023

Shares 1,693 Value ($000) $438 Avg Close $245.62 Range $220.86 - $269.43

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2025	22,791	$2,862	$124.60	$110.04 - $137.32
Q1 2025	24,769	$3,389	$142.96	$128.51 - $157.09
Q4 2024	28,377	$4,339	$168.67	$145.07 - $195.00
Q3 2024	1,248	$242	$209.21	$188.78 - $238.00
Q4 2023	1,693	$438	$245.62	$220.86 - $269.43