Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 384,265 | $68 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 4,446 | $1 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 38,276 | $5 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 178,342 | $24 | $142.96 | $128.51 - $157.09 |
| Q3 2024 | 89,217 | $17 | $209.21 | $188.78 - $238.00 |
| Q2 2023 | 3,896 | $1 | $297.86 | $273.39 - $319.76 |
| Q4 2022 | 133,064 | $37 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 35,962 | $9,601 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 2,417 | $492 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 6,667 | $1,404 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 2,977 | $714 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 5,508 | $1,558 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 13,039 | $4,515 | $302.94 | $257.03 - $468.55 |
| Q4 2020 | 28,316 | $6,933 | $259.08 | $223.25 - $363.92 |
| Q2 2020 | 127,380 | $34,080 | $300.59 | $257.60 - $350.24 |
| Q4 2019 | 1,309 | $388 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 35,238 | $8,204 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 45,386 | $10,614 | $230.90 | $219.20 - $245.35 |
| Q3 2015 | 2,719 | $793 | $330.23 | $265.00 - $412.24 |
| Q1 2015 | 631 | $266 | $394.14 | $334.40 - $480.18 |