Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 6 | $1 | $163.37 | $138.00 - $185.17 |
| Q4 2023 | 40 | $10 | $245.62 | $220.86 - $269.43 |
| Q1 2021 | 39 | $10,910 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 19 | $5 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 19 | $5 | $278.91 | $261.87 - $312.00 |
| Q4 2018 | 20 | $6 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 20 | $7 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 1 | $0 | $281.15 | $249.17 - $310.91 |