Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,246 | $923 | $163.37 | $138.00 - $185.17 |
| Q4 2022 | 948 | $263 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 1,683 | $449 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 1,715 | $350 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 1,793 | $378 | $217.46 | $192.67 - $249.00 |
| Q2 2021 | 2,365 | $819 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 3,268 | $914 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 3,009 | $737 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 1,147 | $325 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 1,382 | $370 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 1,579 | $500 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 1,191 | $353 | $277.46 | $219.70 - $318.00 |
| Q2 2019 | 969 | $227 | $230.90 | $219.20 - $245.35 |
| Q3 2018 | 810 | $286 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 806 | $234 | $281.15 | $249.17 - $310.91 |
| Q4 2017 | 994 | $317 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 760 | $238 | $296.11 | $269.50 - $330.00 |