Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,502 | $264 | $163.37 | $138.00 - $185.17 |
| Q2 2023 | 787 | $224 | $297.86 | $273.39 - $319.76 |
| Q4 2020 | 307 | $75 | $259.08 | $223.25 - $363.92 |
| Q4 2018 | 770 | $259 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 1,240 | $438 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 1,551 | $450 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 981 | $269 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 39 | $12 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 980 | $307 | $296.11 | $269.50 - $330.00 |
| Q1 2017 | 34 | $9 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 24 | $7 | $296.43 | $268.00 - $329.83 |