Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 40 | $7 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 40 | $6 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 40 | $5 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 40 | $5 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 36 | $6 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 34 | $8 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 853 | $220 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 2,008 | $433 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 1,712 | $443 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 1,659 | $0 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 2,080 | $1 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,177 | $0 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 2,175 | $1 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 2,141 | $572 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 1,927 | $393 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 2,077 | $437 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 2,327 | $558 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 2,725 | $771 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 4,704 | $1,629 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 61,691 | $17,258 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 65,601 | $16,063 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 97,795 | $27,742 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 110,971 | $29,592 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 121,061 | $38,295 | $303.47 | $262.25 - $374.99 |