Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2021 | 797 | $225 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 880 | $305 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,821 | $509 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 1,724 | $422 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 19,767 | $5,608 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 19,341 | $5,175 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 18,427 | $5,830 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 17,702 | $5,253 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 17,078 | $3,976 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 17,009 | $3,978 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 18,734 | $4,428 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 18,900 | $5,688 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 17,796 | $6,287 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 17,410 | $5,053 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 16,996 | $4,654 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 14,990 | $4,775 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 15,357 | $4,809 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 15,825 | $4,295 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 15,389 | $4,207 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 14,891 | $4,223 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 15,047 | $4,710 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 15,117 | $3,655 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 15,262 | $3,973 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 14,940 | $4,577 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 14,415 | $4,206 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 14,031 | $5,668 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 13,755 | $5,808 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 13,584 | $4,611 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 12,999 | $4,300 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 12,709 | $4,007 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 11,824 | $3,617 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 9,150 | $2,559 | $258.65 | $221.07 - $298.82 |