Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 53,000 | $9,327 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 5,000 | $700 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 11,000 | $1,381 | $124.60 | $110.04 - $137.32 |
| Q4 2024 | 13,875 | $2,122 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,780 | $345 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,780 | $876 | $217.32 | $189.44 - $237.54 |
| Q4 2022 | 12,000 | $3,323 | $282.44 | $250.31 - $311.88 |
| Q2 2022 | 75,346 | $15,366 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 71,700 | $15,100 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 235,000 | $56,382 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 223,300 | $63,192 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 169,304 | $58,625 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 75,474 | $21,115 | $269.69 | $238.40 - $296.38 |
| Q3 2020 | 12,800 | $3,630 | $278.91 | $261.87 - $312.00 |
| Q4 2019 | 5,540 | $1,644 | $277.46 | $219.70 - $318.00 |