BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Red Tortoise LLC's Holding History (CIK: 0001910488)

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

Q4 2025
Shares 80 Value ($000) $14 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 89 Value ($000) $12 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 89 Value ($000) $11 Avg Close $124.60 Range $110.04 - $137.32
Q1 2025
Shares 13 Value ($000) $2 Avg Close $142.96 Range $128.51 - $157.09
Q4 2024
Shares 48 Value ($000) $7 Avg Close $168.67 Range $145.07 - $195.00
Q3 2024
Shares 28 Value ($000) $5 Avg Close $209.21 Range $188.78 - $238.00
Q2 2024
Shares 28 Value ($000) $6 Avg Close $217.32 Range $189.44 - $237.54
Q4 2022
Shares 7 Value ($000) $2 Avg Close $282.44 Range $250.31 - $311.88