BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Rakuten Investment Management, Inc.'s Holding History (CIK: 0002062680)

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

Q4 2025

Shares 19,295 Value ($000) $3,412 Avg Close $163.37 Range $138.00 - $185.17

Q3 2025

Shares 198,572 Value ($000) $99,137 Avg Close $135.17 Range $121.05 - $150.28

Q1 2025

Shares 18,708 Value ($000) $2,589 Avg Close $142.96 Range $128.51 - $157.09

Q3 2024

Shares 11,566 Value ($000) $2,252 Avg Close $209.21 Range $188.78 - $238.00

Q2 2024

Shares 8,649 Value ($000) $1,978 Avg Close $217.32 Range $189.44 - $237.54

Q1 2024

Shares 5,379 Value ($000) $1,160 Avg Close $234.20 Range $211.02 - $268.30

Q4 2023

Shares 358 Value ($000) $93 Avg Close $245.62 Range $220.86 - $269.43

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	19,295	$3,412	$163.37	$138.00 - $185.17
Q3 2025	198,572	$99,137	$135.17	$121.05 - $150.28
Q1 2025	18,708	$2,589	$142.96	$128.51 - $157.09
Q3 2024	11,566	$2,252	$209.21	$188.78 - $238.00
Q2 2024	8,649	$1,978	$217.32	$189.44 - $237.54
Q1 2024	5,379	$1,160	$234.20	$211.02 - $268.30
Q4 2023	358	$93	$245.62	$220.86 - $269.43