Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 102,318 | $18,007 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 96,666 | $13,541 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 95,560 | $12,001 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 125,162 | $17,127 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 88,157 | $13,481 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 82,283 | $15,950 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 80,600 | $18,685 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 80,600 | $17,380 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 80,600 | $20,857 | $245.62 | $220.86 - $269.43 |
| Q2 2023 | 2,213 | $630 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 143,078 | $39,780 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 35,509 | $9,833 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 73,954 | $19,746 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 37,412 | $7,630 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 54,067 | $11,387 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 37,781 | $9,064 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 52,418 | $14,834 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 73,457 | $25,436 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 17,476 | $4,889 | $269.69 | $238.40 - $296.38 |