Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,575 | $277 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 1,637 | $229 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 3,955 | $497 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 69,905 | $9,566 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 10,040 | $1,535 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 4,653 | $902 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 47,295 | $10,964 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 9,584 | $2,067 | $234.20 | $211.02 - $268.30 |
| Q3 2023 | 1,438 | $370 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 14,688 | $4,184 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 13,694 | $3,807 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 34,497 | $9,553 | $282.44 | $250.31 - $311.88 |
| Q1 2022 | 1,685 | $355 | $217.46 | $192.67 - $249.00 |
| Q1 2020 | 180 | $57 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 210 | $62 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 3,552 | $827 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 160 | $37 | $230.90 | $219.20 - $245.35 |
| Q3 2018 | 1,591 | $562 | $344.30 | $288.13 - $388.67 |