Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1 | $0 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 1 | $0 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 1 | $0 | $124.60 | $110.04 - $137.32 |
| Q4 2023 | 12 | $3 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 12 | $3 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 12 | $3 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 34 | $9 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 35 | $10 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 30 | $8 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 30 | $6 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 182 | $38 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 10,076 | $2,417 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 8,405 | $2,378 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 7,543 | $2,612 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 6,482 | $1,813 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 4,909 | $1,202 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 3,671 | $1,041 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 260 | $70 | $300.59 | $257.60 - $350.24 |
| Q4 2018 | 6 | $2 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 9 | $3 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 62 | $18 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 25 | $7 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 25 | $8 | $320.80 | $301.81 - $348.84 |