Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,000 | $352 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,000 | $280 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 2,000 | $251 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 2,000 | $274 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 2,000 | $306 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 7,428 | $1,440 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 8,567 | $1,986 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 8,567 | $1,847 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,000 | $518 | $245.62 | $220.86 - $269.43 |
| Q2 2020 | 5,109 | $1,367 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 6,639 | $2,100 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 6,739 | $2,000 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 12,264 | $2,855 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 16,430 | $3,842 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 16,600 | $3,924 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 24,364 | $7,332 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 15,212 | $5,375 | $344.30 | $288.13 - $388.67 |
| Q1 2018 | 300 | $82 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 300 | $96 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 3,800 | $1,190 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 237 | $91 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 237 | $65 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 137 | $39 | $296.43 | $268.00 - $329.83 |
| Q2 2015 | 8,500 | $3,433 | $401.33 | $368.88 - $432.88 |