Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 13,543 | $2,383 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 13,372 | $1,873 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 13,147 | $1,651 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 11,830 | $1,619 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 11,568 | $1,769 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 11,456 | $2,221 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,540 | $821 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 10,828 | $2,335 | $234.20 | $211.02 - $268.30 |
| Q1 2023 | 7,069 | $1,965 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 7,064 | $1,956 | $282.44 | $250.31 - $311.88 |
| Q1 2022 | 362 | $76 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 38 | $9 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 38 | $10 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 50 | $17 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 45 | $13 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 45 | $11 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 45 | $13 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 45 | $12 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 48 | $15,186 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 440 | $130,561 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 1,187 | $276,357 | $232.85 | $215.78 - $246.99 |