Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 30,516 | $5,371 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 38,354 | $5,373 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 41,972 | $5,271 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 44,025 | $6,024 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 43,066 | $6,586 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 35,253 | $6,833 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 35,954 | $8,335 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 35,792 | $7,718 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 34,476 | $8,921 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 34,306 | $8,817 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 29,411 | $8,378 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 29,536 | $8,212 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 30,076 | $8,329 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 31,754 | $8,479 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 43,019 | $8,774 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 42,679 | $8,988 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 27,191 | $6,523 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 28,289 | $8,005 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 27,239 | $9,432 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 27,289 | $7,634 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 19,929 | $4,880 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 19,637 | $5,571 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 16,246 | $4,347 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 16,380 | $5,182 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 18,114 | $5,375 | $277.46 | $219.70 - $318.00 |