Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 231,609 | $40,761 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 232,439 | $32,560 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 213,719 | $26,841 | $124.60 | $110.04 - $137.32 |
| Q4 2024 | 184,045 | $28,144 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 185,008 | $35,862 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 100,027 | $23,188 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 106,383 | $22,939 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 106,156 | $27,470 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 111,654 | $28,696 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 124,532 | $35,473 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 125,127 | $34,789 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 122,002 | $33,785 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 136,070 | $36,331 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 141,155 | $28,787 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 182,129 | $38,356 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 190,476 | $45,714 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 210,864 | $59,672 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 208,280 | $72,121 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 240,792 | $67,362 | $269.69 | $238.40 - $296.38 |