Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 45,897 | $8,077 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 8,677 | $1,215 | $135.17 | $121.05 - $150.28 |
| Q3 2021 | 2,290 | $648 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 2,290 | $793 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 2,290 | $641 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 2,290 | $561 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 2,288 | $649 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 2,288 | $612 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 2,288 | $724 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 2,608 | $774 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 2,612 | $608 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 2,608 | $610 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 2,608 | $616 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 2,608 | $921 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 2,608 | $921 | $344.30 | $288.13 - $388.67 |