Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2025 | 5,500 | $770 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 10,922 | $1,372 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 1,810 | $248 | $142.96 | $128.51 - $157.09 |
| Q4 2022 | 850 | $235 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 1,927 | $515 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 20,152 | $4,110 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 20,150 | $4,244 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 23,367 | $5,606 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 10,288 | $2,911 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 19,521 | $6,760 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 1,780 | $498 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 2,480 | $607 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 1,147 | $325 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 5,313 | $1,421 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 6,219 | $1,968 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 7,000 | $2,077 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 8,085 | $1,882 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 7,208 | $1,686 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 14,887 | $3,519 | $314.89 | $216.12 - $344.00 |
| Q4 2016 | 1,847 | $524 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 1,606 | $503 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 27,238 | $912 | $263.54 | $223.02 - $292.69 |