Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 5,887 | $1,036 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,848 | $399 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 2,847 | $358 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 3,540 | $484 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,804 | $582 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 3,008 | $583 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,007 | $697 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 3,006 | $648 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 3,043 | $787 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 3,043 | $782 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 3,042 | $867 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 3,042 | $846 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 2,999 | $830 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 4,101 | $1,095 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 3,393 | $692 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 3,775 | $795 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 1,307 | $314 | $257.12 | $221.72 - $290.76 |