Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,401 | $598 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 3,224 | $452 | $135.17 | $121.05 - $150.28 |
| Q4 2024 | 1,537 | $235 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,388 | $269 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,673 | $388 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 4,279 | $923 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 4,542 | $1,175 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 18,156 | $4,666 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 1,350 | $385 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,268 | $353 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,539 | $426 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 1,268 | $341 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 1,256 | $255 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 13,463 | $2,835 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 3,094 | $742 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 2,091 | $592 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 2,746 | $951 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 980 | $271 | $269.69 | $238.40 - $296.38 |
| Q1 2019 | 7,472 | $1,765 | $314.89 | $216.12 - $344.00 |