Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2024 | 34,200 | $7,375 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 34,200 | $8,850 | $245.62 | $220.86 - $269.43 |
| Q2 2021 | 330,992 | $114,613 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 330,992 | $92,595 | $269.69 | $238.40 - $296.38 |
| Q3 2020 | 317,974 | $90,203 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 17,500 | $4,682 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 718,408 | $227,290 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,828,246 | $542,495 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 3,251,471 | $757,007 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 4,074,927 | $953,003 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 4,901,860 | $1,158,702 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 4,015,567 | $1,208,364 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 2,473,708 | $873,986 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 410,110 | $119,030 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 209,627 | $57,400 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 99,400 | $31,666 | $320.80 | $301.81 - $348.84 |
| Q1 2016 | 600,000 | $156,192 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 910,000 | $278,779 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 1,201,651 | $350,654 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 1,577,679 | $637,288 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 1,523,700 | $643,367 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 1,710,500 | $580,629 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 780,500 | $258,197 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 410,500 | $129,435 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 52,500 | $16,058 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 52,500 | $14,687 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 52,500 | $12,640 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 52,500 | $11,298 | $213.68 | $191.80 - $242.64 |