Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 7,706 | $1,334 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 7,707 | $1,182 | $135.17 | $121.05 - $150.28 |
| Q2 2021 | 655 | $227 | $302.94 | $257.03 - $468.55 |
| Q3 2018 | 540 | $191 | $344.30 | $288.13 - $388.67 |
| Q1 2018 | 485 | $133 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 378 | $120 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 835 | $261 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 330 | $90 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 350 | $99 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 350 | $99 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 361 | $113 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 447 | $108 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 456 | $119 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 100 | $31 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 100 | $29 | $330.23 | $265.00 - $412.24 |