Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 32,124 | $5,654 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 33,056 | $4,630 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 33,526 | $4,211 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 35,846 | $4,905 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 36,730 | $5,617 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 38,810 | $7,523 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 27,625 | $6,404 | $217.32 | $189.44 - $237.54 |
| Q4 2023 | 3,088 | $799 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 3,092 | $795 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 3,588 | $1,022 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 3,651 | $1,015 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 3,824 | $1,059 | $282.44 | $250.31 - $311.88 |
| Q2 2020 | 29,618 | $7,924 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 22,618 | $7,156 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 28,518 | $8,462 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 32,423 | $7,549 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 32,117 | $7,511 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 45,284 | $10,704 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 45,890 | $13,809 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 45,860 | $16,203 | $344.30 | $288.13 - $388.67 |