Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,240 | $394 | $163.37 | $138.00 - $185.17 |
| Q3 2024 | 1,048 | $203 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,472 | $341 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,784 | $385 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,391 | $619 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 1,143 | $294 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 6,964 | $1,984 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 6,286 | $1,748 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 6,275 | $1,738 | $282.44 | $250.31 - $311.88 |
| Q2 2022 | 463 | $94 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 940 | $198 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 920 | $220 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 7,265 | $2,056 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 861 | $298 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,136 | $317 | $269.69 | $238.40 - $296.38 |
| Q3 2020 | 26 | $7 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 767 | $205 | $300.59 | $257.60 - $350.24 |
| Q3 2019 | 2,651 | $617 | $232.85 | $215.78 - $246.99 |
| Q3 2018 | 1,397 | $411 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 1,652 | $483 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 1,117 | $305 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 1,719 | $563 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 709 | $223 | $296.11 | $269.50 - $330.00 |
| Q1 2017 | 964 | $262 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 1,003 | $291 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 898 | $281 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 1,347 | $326 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 957 | $249 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 1,524 | $467 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 1,894 | $553 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 1,933 | $749 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 1,334 | $530 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 1,352 | $459 | $323.51 | $290.85 - $361.93 |