Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 33 | $6 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 35 | $5 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 477 | $73 | $124.60 | $110.04 - $137.32 |
| Q4 2024 | 477 | $72 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 477 | $92 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 627 | $145 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 627 | $135 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 303 | $78 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 306 | $79 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 306 | $87 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 306 | $84 | $276.70 | $254.80 - $295.90 |
| Q3 2020 | 836 | $237 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 820 | $219 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 964 | $305 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 3,277 | $972 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 3,283 | $764 | $232.85 | $215.78 - $246.99 |
| Q4 2017 | 723 | $230 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 723 | $226 | $296.11 | $269.50 - $330.00 |
| Q3 2016 | 650 | $203 | $296.18 | $240.07 - $333.65 |
| Q4 2015 | 660 | $202 | $287.35 | $254.00 - $311.65 |
| Q2 2015 | 666 | $269 | $401.33 | $368.88 - $432.88 |