Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 10 | $2 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 10 | $1 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 20 | $3 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 20 | $3 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 45 | $7 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 45 | $9 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 65 | $15 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 65 | $14 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 145 | $38 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 145 | $37 | $267.47 | $251.85 - $287.60 |
| Q3 2018 | 815 | $288 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 875 | $254 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 1,560 | $427 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 1,562 | $498 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 1,673 | $524 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 1,670 | $453 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 1,670 | $457 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 1,670 | $474 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 1,670 | $523 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 1,670 | $404 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 1,670 | $435 | $264.15 | $242.07 - $301.02 |
| Q3 2015 | 1,620 | $473 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 4,480 | $1,810 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 4,785 | $2,020 | $394.14 | $334.40 - $480.18 |
| Q4 2013 | 500 | $140 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 500 | $120 | $223.81 | $203.55 - $248.95 |