Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,507 | $441 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 2,039 | $286 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 2,225 | $279 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 2,264 | $310 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 2,012 | $308 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 2,215 | $429 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 2,209 | $512 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 1,987 | $428 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 2,975 | $770 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 2,740 | $704 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 2,978 | $848 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 1,870 | $520 | $276.70 | $254.80 - $295.90 |
| Q1 2020 | 679 | $215 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 679 | $201 | $277.46 | $219.70 - $318.00 |
| Q4 2018 | 665 | $200 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 665 | $235 | $344.30 | $288.13 - $388.67 |
| Q4 2017 | 665 | $212 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 665 | $208 | $296.11 | $269.50 - $330.00 |
| Q3 2016 | 645 | $202 | $296.18 | $240.07 - $333.65 |
| Q2 2015 | 645 | $260 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 645 | $273 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 645 | $219 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 645 | $213 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 645 | $204 | $300.97 | $272.02 - $322.25 |
| Q4 2013 | 845 | $236 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 845 | $203 | $223.81 | $203.55 - $248.95 |