Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 10,564 | $1,859 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 9,096 | $1,274 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 4,527 | $568 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 3,017 | $413 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,026 | $463 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 2,297 | $445 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 2,582 | $599 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 2,341 | $505 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,668 | $690 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 2,043 | $525 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 1,998 | $569 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,764 | $490 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,749 | $484 | $282.44 | $250.31 - $311.88 |
| Q4 2017 | 13,896 | $4,427 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 13,282 | $4,159 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 12,544 | $3,404 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 11,311 | $3,093 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 10,154 | $2,879 | $296.43 | $268.00 - $329.83 |