Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 3,846 | $677 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 3,996 | $560 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 3,972 | $499 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 3,774 | $516 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 3,752 | $574 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 3,536 | $685 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 3,247 | $753 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 2,741 | $591 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,405 | $622 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 2,259 | $581 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 2,064 | $588 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,849 | $514 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 1,815 | $503 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 1,666 | $445 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 1,557 | $318 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 1,722 | $363 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 1,750 | $420 | $257.12 | $221.72 - $290.76 |