Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2020 | 21,228 | $5,198 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 22,235 | $6,308 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 23,297 | $6,233 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 25,745 | $8,145 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 25,745 | $7,639 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 26,278 | $6,118 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 27,653 | $6,467 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 28,063 | $6,634 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 28,406 | $8,548 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 28,319 | $10,005 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 29,605 | $8,593 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 29,470 | $8,069 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 29,451 | $9,382 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 29,351 | $9,190 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 29,648 | $8,045 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 29,836 | $8,158 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 29,763 | $8,440 | $296.43 | $268.00 - $329.83 |
| Q2 2016 | 29,505 | $7,135 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 29,128 | $7,583 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 29,120 | $8,921 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 30,428 | $8,879 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 30,289 | $12,235 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 30,215 | $12,758 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 125,221 | $42,506 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 120,686 | $39,924 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 120,946 | $38,135 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 115,859 | $35,438 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 102,511 | $28,677 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 91,598 | $22,053 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 129,930 | $27,961 | $213.68 | $191.80 - $242.64 |