Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,254 | $221 | $163.37 | $138.00 - $185.17 |
| Q4 2024 | 1,484 | $227 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,584 | $307 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,637 | $379 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,667 | $359 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 1,531 | $396 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 1,524 | $392 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 1,571 | $448 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,573 | $437 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,578 | $437 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 2,713 | $727 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 4,315 | $877 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 4,690 | $988 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 1,490 | $352 | $257.12 | $221.72 - $290.76 |
| Q2 2021 | 1,147 | $397 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,043 | $292 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 1,170 | $286 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 1,168 | $331 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 1,119 | $299 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 1,122 | $357 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 923 | $274 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 923 | $213 | $232.85 | $215.78 - $246.99 |
| Q4 2018 | 740 | $227 | $319.14 | $278.46 - $358.41 |