Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2025 | 1,464 | $200 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 1,458 | $223 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 1,458 | $283 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 1,458 | $338 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,488 | $321 | $234.20 | $211.02 - $268.30 |
| Q3 2023 | 1,488 | $382 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 1,488 | $0 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,488 | $0 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,488 | $0 | $282.44 | $250.31 - $311.88 |
| Q2 2022 | 4,288 | $875 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 4,288 | $903 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 4,288 | $1,028 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 4,288 | $1,213 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 4,288 | $1,485 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 4,275 | $1,196 | $269.69 | $238.40 - $296.38 |
| Q3 2020 | 4,275 | $1,213 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 4,275 | $1,144 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 4,475 | $1,415 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 4,475 | $1,328 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 4,475 | $1,042 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 4,594 | $1,074 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 3,484 | $823 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 1,610 | $484 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 1,705 | $602 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 1,565 | $454 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 1,595 | $437 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 1,435 | $457 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 1,469 | $460 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 1,519 | $413 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 1,449 | $397 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 999 | $283 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 1,099 | $344 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 999 | $241 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 1,443 | $376 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 1,353 | $414 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 1,283 | $374 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 1,683 | $680 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 1,707 | $721 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 1,663 | $564 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 1,743 | $577 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 1,743 | $549 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 1,338 | $410 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 1,333 | $373 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 1,333 | $321 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 989 | $213 | $213.68 | $191.80 - $242.64 |