Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2025 | 1,453 | $204 | $135.17 | $121.05 - $150.28 |
| Q4 2024 | 1,405 | $215 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,323 | $256 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,241 | $288 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,623 | $350 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,126 | $550 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 2,210 | $568 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 2,191 | $624 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 2,438 | $678 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 2,457 | $1 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 2,041 | $545 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 2,526 | $515 | $204.43 | $187.16 - $225.50 |
| Q3 2021 | 918 | $260 | $327.75 | $282.64 - $372.12 |
| Q3 2020 | 710 | $202 | $278.91 | $261.87 - $312.00 |
| Q1 2020 | 1,319 | $417 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,979 | $588 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 1,924 | $447 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 1,944 | $454 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 1,860 | $440 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 1,841 | $554 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 1,981 | $700 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 2,370 | $688 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 2,424 | $664 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 2,460 | $784 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 2,875 | $900 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 3,255 | $884 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 3,270 | $894 | $282.75 | $260.50 - $301.42 |