Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,816 | $483 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,724 | $406 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 2,358 | $309 | $124.60 | $110.04 - $137.32 |
| Q4 2024 | 2,445 | $369 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,430 | $262 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,408 | $298 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,525 | $295 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 1,610 | $398 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 1,650 | $418 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 1,600 | $434 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,632 | $478 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,787 | $521 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 1,754 | $499 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 1,391 | $299 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 1,320 | $258 | $217.46 | $192.67 - $249.00 |
| Q3 2018 | 6 | $2 | $344.30 | $288.13 - $388.67 |
| Q1 2017 | 105 | $29 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 100 | $28 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 50 | $16 | $296.18 | $240.07 - $333.65 |
| Q1 2015 | 31 | $11 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 25 | $9 | $323.51 | $290.85 - $361.93 |