Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,410 | $424 | $163.37 | $138.00 - $185.17 |
| Q3 2021 | 764 | $216 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 784 | $258 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,137 | $318 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 941 | $252 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 945 | $268 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 979 | $262 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 942 | $298 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 947 | $281 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 868 | $202 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 919 | $215 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 989 | $234 | $314.89 | $216.12 - $344.00 |
| Q3 2018 | 658 | $227 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 653 | $190 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 610 | $167 | $310.41 | $259.76 - $370.57 |