BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Entropy Technologies, LP's Holding History (CIK: 0001976151)

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

Q4 2025

Shares 16,312 Value ($000) $2,871 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 2,413 Value ($000) $338 Avg Close $135.17 Range $121.05 - $150.28

Q2 2025

Shares 7,840 Value ($000) $985 Avg Close $124.60 Range $110.04 - $137.32

Q1 2025

Shares 17,310 Value ($000) $2,369 Avg Close $142.96 Range $128.51 - $157.09

Q4 2024

Shares 34,397 Value ($000) $5,260 Avg Close $168.67 Range $145.07 - $195.00

Q1 2024

Shares 23,358 Value ($000) $5,037 Avg Close $234.20 Range $211.02 - $268.30

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	16,312	$2,871	$163.37	$138.00 - $185.17
Q3 2025	2,413	$338	$135.17	$121.05 - $150.28
Q2 2025	7,840	$985	$124.60	$110.04 - $137.32
Q1 2025	17,310	$2,369	$142.96	$128.51 - $157.09
Q4 2024	34,397	$5,260	$168.67	$145.07 - $195.00
Q1 2024	23,358	$5,037	$234.20	$211.02 - $268.30