Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 9,841 | $1,732 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 19,988 | $2,800 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 13,448 | $1,689 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 15,939 | $2,181 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 15,262 | $2,334 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 11,153 | $2,162 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 13,805 | $3,200 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 18,881 | $4,071 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 22,930 | $5,934 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 14,431 | $3,709 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 15,571 | $4,435 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 11,083 | $3,081 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 8,572 | $2,349 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 11,873 | $3,137 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 11,534 | $2,367 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 14,045 | $2,965 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 36,254 | $8,702 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 47,624 | $13,477 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 42,967 | $14,855 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 81,246 | $22,728 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 88,056 | $23,682 | $259.08 | $223.25 - $363.92 |