Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,430 | $956 | $163.37 | $138.00 - $185.17 |
| Q3 2024 | 10,659 | $2,066 | $209.21 | $188.78 - $238.00 |
| Q1 2024 | 3,000 | $647 | $234.20 | $211.02 - $268.30 |
| Q2 2023 | 1,314 | $374 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 6,899 | $1,918 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,144 | $317 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 2,420 | $646 | $212.38 | $193.65 - $283.44 |
| Q1 2022 | 9,873 | $2,079 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 1,689 | $405 | $257.12 | $221.72 - $290.76 |
| Q1 2021 | 759 | $212 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 1,152 | $282 | $259.08 | $223.25 - $363.92 |
| Q2 2020 | 4,048 | $1,083 | $300.59 | $257.60 - $350.24 |
| Q4 2019 | 828 | $246 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 8,980 | $2,091 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 7,870 | $1,841 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 2,730 | $645 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 755 | $227 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 7,044 | $2,489 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 911 | $264 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 3,802 | $1,041 | $310.41 | $259.76 - $370.57 |
| Q4 2016 | 1,856 | $526 | $296.43 | $268.00 - $329.83 |
| Q4 2015 | 1,240 | $380 | $287.35 | $254.00 - $311.65 |