Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q3 2025 | 6,514 | $912 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 5,102 | $641 | $124.60 | $110.04 - $137.32 |
| Q3 2022 | 809 | $216 | $212.38 | $193.65 - $283.44 |
| Q3 2021 | 833 | $236 | $327.75 | $282.64 - $372.12 |
| Q3 2018 | 570 | $201 | $344.30 | $288.13 - $388.67 |
| Q2 2015 | 632 | $255 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 633 | $267 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 613 | $208 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 1,123 | $371 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 1,145 | $361 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 1,135 | $347 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 1,054 | $295 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 988 | $238 | $223.81 | $203.55 - $248.95 |