BIOGEN INC

Ticker: BIIB CUSIP: 09062X103 Class: COM

Optas, LLC's Holding History (CIK: 0001802961)

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

Q4 2025
Shares 1,706 Value ($000) $300 Avg Close $163.37 Range $138.00 - $185.17
Q3 2025
Shares 1,633 Value ($000) $229 Avg Close $135.17 Range $121.05 - $150.28
Q2 2025
Shares 1,594 Value ($000) $200 Avg Close $124.60 Range $110.04 - $137.32
Q3 2021
Shares 801 Value ($000) $226 Avg Close $327.75 Range $282.64 - $372.12
Q2 2021
Shares 797 Value ($000) $277 Avg Close $302.94 Range $257.03 - $468.55
Q1 2021
Shares 796 Value ($000) $223 Avg Close $269.69 Range $238.40 - $296.38
Q3 2020
Shares 1,029 Value ($000) $293 Avg Close $278.91 Range $261.87 - $312.00
Q2 2020
Shares 936 Value ($000) $250 Avg Close $300.59 Range $257.60 - $350.24
Q1 2020
Shares 1,714 Value ($000) $542 Avg Close $303.47 Range $262.25 - $374.99
Q4 2019
Shares 1,753 Value ($000) $521 Avg Close $277.46 Range $219.70 - $318.00