Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 4,575 | $805 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,896 | $406 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 3,003 | $377 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 3,354 | $459 | $142.96 | $128.51 - $157.09 |
| Q4 2021 | 897 | $215 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 1,391 | $393 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 1,543 | $534 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,209 | $338 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 1,111 | $272 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 116 | $32,481 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 118 | $33,189 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 94 | $29,740 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 123 | $41,113 | $277.46 | $219.70 - $318.00 |