Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,302 | $933 | $163.37 | $138.00 - $185.17 |
| Q1 2023 | 809 | $225 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 801 | $222 | $282.44 | $250.31 - $311.88 |
| Q2 2021 | 584 | $202 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 619 | $173 | $269.69 | $238.40 - $296.38 |
| Q1 2020 | 503 | $159 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 503 | $149 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 503 | $117 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 503 | $118 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 583 | $138 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 583 | $175 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 583 | $206 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 583 | $169 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 503 | $138 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 208 | $66 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 203 | $64 | $296.11 | $269.50 - $330.00 |