Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2025 | 37,698 | $5,159 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 39,724 | $6,075 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 39,350 | $7,628 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 40,442 | $9,375 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 42,039 | $9,065 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 44,551 | $11,528 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 47,161 | $12,121 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 49,575 | $14,121 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 51,776 | $14,395 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 39,327 | $10,890 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 41,247 | $11,013 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 67,765 | $13,820 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 71,818 | $15,124 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 112,083 | $26,891 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 126,021 | $35,662 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 124,853 | $43,233 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 126,304 | $35,333 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 128,811 | $31,540 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 122,709 | $34,810 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 129,343 | $34,605 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 123,456 | $39,059 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 135,944 | $40,338 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 151,280 | $35,221 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 136,287 | $31,874 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 108,085 | $25,549 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 93,627 | $28,175 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 82,217 | $29,048 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 98,435 | $28,570 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 66,142 | $18,111 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 92,121 | $29,347 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 115,890 | $36,287 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 116,109 | $31,507 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 118,127 | $32,298 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 99,454 | $28,203 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 112,588 | $35,243 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 150,784 | $36,463 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 111,265 | $28,965 | $264.15 | $242.07 - $301.02 |