Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,955 | $338 | $163.37 | $138.00 - $185.17 |
| Q2 2025 | 2,578 | $321 | $124.60 | $110.04 - $137.32 |
| Q1 2024 | 961 | $207 | $234.20 | $211.02 - $268.30 |
| Q2 2021 | 730 | $253 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 771 | $216 | $269.69 | $238.40 - $296.38 |
| Q1 2020 | 1,130 | $350 | $303.47 | $262.25 - $374.99 |
| Q4 2017 | 2,952 | $940 | $320.80 | $301.81 - $348.84 |
| Q3 2015 | 3,000 | $875 | $330.23 | $265.00 - $412.24 |
| Q4 2014 | 7,800 | $2,648 | $323.51 | $290.85 - $361.93 |
| Q2 2014 | 31,700 | $9,995 | $300.97 | $272.02 - $322.25 |