Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 11,783 | $2,074 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 11,625 | $1,628 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 12,365 | $1,553 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 13,345 | $1,826 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 5,651 | $864 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 2,556 | $470 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 2,601 | $586 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 2,659 | $573 | $234.20 | $211.02 - $268.30 |
| Q3 2023 | 2,677 | $635 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 2,860 | $796 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 3,052 | $894 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 3,058 | $874 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 3,054 | $856 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 3,205 | $661 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 3,280 | $697 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 3,503 | $772 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 3,367 | $941 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 3,300 | $1,116 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 3,379 | $931 | $269.69 | $238.40 - $296.38 |