Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,167 | $909 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 4,895 | $686 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 1,651 | $207 | $124.60 | $110.04 - $137.32 |
| Q1 2023 | 286 | $80 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,337 | $370 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 673 | $180 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 31 | $6 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 30 | $6 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 35 | $8 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 593 | $168 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 560 | $194 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 621 | $174 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 602 | $147 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 25 | $7 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 208 | $56 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 198 | $63 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 116 | $34 | $277.46 | $219.70 - $318.00 |
| Q3 2019 | 5 | $1 | $232.85 | $215.78 - $246.99 |