Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2021 | 885 | $248 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 1,021 | $250 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 1,021 | $290 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 1,021 | $273 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 1,090 | $345 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,268 | $376 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 2,548 | $593 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 2,783 | $651 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 3,030 | $716 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 3,732 | $1,123 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 3,236 | $1,144 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 3,126 | $907 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 3,123 | $855 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 3,119 | $994 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 1,900 | $595 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 1,912 | $519 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 2,502 | $684 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 2,743 | $778 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 2,793 | $874 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 2,803 | $678 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 2,728 | $710 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 2,678 | $820 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 2,501 | $730 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 1,871 | $755 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 1,879 | $794 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 2,326 | $790 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 2,276 | $753 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 2,276 | $717 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 2,191 | $671 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 3,041 | $850 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 3,041 | $732 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 3,141 | $676 | $213.68 | $191.80 - $242.64 |
| Q1 2013 | 3,773 | $727 | $161.63 | $139.72 - $192.92 |