Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2025 | 50,000 | $6,842 | $142.96 | $128.51 - $157.09 |
| Q4 2023 | 13,263 | $3,432 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 50,383 | $12,949 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 50,383 | $14,352 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 50,383 | $14,008 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 9,097 | $2,519 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 8,397 | $2,242 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 29,064 | $5,927 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 29,064 | $6,121 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 29,064 | $6,973 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 1,500 | $424 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 1,500 | $519 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 20,278 | $5,673 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 20,278 | $4,965 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 20,278 | $5,752 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 20,278 | $5,425 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 30,443 | $9,632 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 33,272 | $9,873 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 36,770 | $8,561 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 39,223 | $9,173 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 33,123 | $7,830 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 31,362 | $9,437 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 47,468 | $16,771 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 56,415 | $16,374 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 47,094 | $12,895 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 46,655 | $14,863 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 46,535 | $14,571 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 45,335 | $12,302 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 45,335 | $12,395 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 45,335 | $12,856 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 46,545 | $14,570 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 50,369 | $12,180 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 53,795 | $14,377 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 46,345 | $14,198 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 15,152 | $4,422 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 16,804 | $6,788 | $401.33 | $368.88 - $432.88 |