Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,218 | $390 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 1,465 | $205 | $135.17 | $121.05 - $150.28 |
| Q2 2024 | 1,422 | $330 | $217.32 | $189.44 - $237.54 |
| Q4 2023 | 5,234 | $1,354 | $245.62 | $220.86 - $269.43 |
| Q2 2023 | 2,306 | $657 | $297.86 | $273.39 - $319.76 |
| Q4 2021 | 950 | $228 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 858 | $243 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 1,089 | $377 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 741 | $207 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 2,357 | $577 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 2,195 | $623 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 1,896 | $507 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 1,514 | $479 | $303.47 | $262.25 - $374.99 |