Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,226 | $568 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 3,751 | $525 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 4,055 | $509 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 2,636 | $361 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,274 | $501 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 5,079 | $984 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 10,280 | $2,383 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 12,136 | $2,617 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 14,199 | $3,674 | $245.62 | $220.86 - $269.43 |
| Q1 2021 | 93 | $26 | $269.69 | $238.40 - $296.38 |
| Q4 2019 | 74 | $22 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 74 | $17 | $232.85 | $215.78 - $246.99 |
| Q4 2018 | 67 | $20 | $319.14 | $278.46 - $358.41 |