Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,122 | $427 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,247 | $315 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 2,248 | $282 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 2,783 | $381 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,131 | $479 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 3,432 | $665 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,854 | $893 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 3,856 | $831 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 3,900 | $1,009 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 4,007 | $1,030 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 4,152 | $1,183 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 4,241 | $1,179 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 4,809 | $1,332 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 4,903 | $1,309 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 5,312 | $1,083 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 5,227 | $1,101 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 5,286 | $1,268 | $257.12 | $221.72 - $290.76 |