Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 21,133 | $3,719 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 22,949 | $3,215 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 18,321 | $2,301 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 14,216 | $1,945 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,898 | $596 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 5,270 | $800 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,632 | $842 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,827 | $394 | $234.20 | $211.02 - $268.30 |
| Q4 2021 | 15,868 | $3,885 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 15,592 | $4,412 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 15,619 | $5,408 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 16,057 | $4,492 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 15,868 | $3,885 | $259.08 | $223.25 - $363.92 |
| Q4 2019 | 18,424 | $5,467 | $277.46 | $219.70 - $318.00 |
| Q4 2018 | 18,489 | $5,564 | $319.14 | $278.46 - $358.41 |