Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,832 | $322 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 1,641 | $230 | $135.17 | $121.05 - $150.28 |
| Q3 2021 | 934 | $264 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 787 | $273 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 787 | $220 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 821 | $201 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 1,221 | $346 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 1,221 | $327 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 1,574 | $498 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,274 | $378 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 1,274 | $297 | $232.85 | $215.78 - $246.99 |