Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,844 | $501 | $163.37 | $138.00 - $185.17 |
| Q3 2023 | 60 | $15 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 88 | $25 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 88 | $24 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 685 | $190 | $282.44 | $250.31 - $311.88 |
| Q4 2021 | 143 | $34,308 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 1,684 | $476,555 | $327.75 | $282.64 - $372.12 |
| Q4 2020 | 582 | $142,508 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 2,450 | $695,016 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 5,087 | $1,361,027 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 130 | $41,129 | $303.47 | $262.25 - $374.99 |
| Q2 2019 | 810 | $189,434 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 4,348 | $1,027,780 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 37 | $11,134 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 37 | $13,052 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 37 | $13,134 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 63 | $17,251 | $310.41 | $259.76 - $370.57 |