Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q2 2025 | 2,484 | $312 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 7,719 | $1,056 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 1,877 | $287 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,160 | $225 | $209.21 | $188.78 - $238.00 |
| Q4 2022 | 1,337 | $0 | $282.44 | $250.31 - $311.88 |
| Q2 2022 | 2,555 | $521 | $204.43 | $187.16 - $225.50 |
| Q4 2021 | 3,714 | $891 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 35,442 | $10,030 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 10,705 | $3,707 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 7,363 | $2,060 | $269.69 | $238.40 - $296.38 |
| Q2 2020 | 1,022 | $273 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 640 | $202 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,409 | $418 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 4,241 | $987 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 3,912 | $915 | $230.90 | $219.20 - $245.35 |
| Q2 2018 | 825 | $239 | $281.15 | $249.17 - $310.91 |
| Q4 2017 | 636 | $203 | $320.80 | $301.81 - $348.84 |
| Q1 2017 | 4,514 | $1,234 | $282.75 | $260.50 - $301.42 |
| Q1 2015 | 5,229 | $2,208 | $394.14 | $334.40 - $480.18 |