Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 1,614 | $0 | $163.37 | $138.00 - $185.17 |
| Q4 2024 | 8,918 | $1 | $168.67 | $145.07 - $195.00 |
| Q1 2024 | 21,371 | $5 | $234.20 | $211.02 - $268.30 |
| Q4 2022 | 10,611 | $3 | $282.44 | $250.31 - $311.88 |
| Q2 2022 | 13,832 | $2,820 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 20,910 | $4,403 | $217.46 | $192.67 - $249.00 |
| Q3 2021 | 23,817 | $6,739 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 29,595 | $10,247 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 4,668 | $1,305 | $269.69 | $238.40 - $296.38 |
| Q1 2020 | 35,343 | $11,181 | $303.47 | $262.25 - $374.99 |
| Q3 2019 | 96,396 | $22,442 | $232.85 | $215.78 - $246.99 |
| Q1 2018 | 34,800 | $9,528 | $310.41 | $259.76 - $370.57 |
| Q3 2017 | 145,500 | $45,558 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 35,000 | $9,497 | $264.42 | $244.28 - $291.90 |
| Q3 2016 | 6,800 | $2,128 | $296.18 | $240.07 - $333.65 |
| Q1 2016 | 6,600 | $1,718 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 17,200 | $5,269 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 16,900 | $4,931 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 7,200 | $2,908 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 2,500 | $1,055 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 19,700 | $6,687 | $323.51 | $290.85 - $361.93 |
| Q4 2013 | 1,600 | $447 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 20,500 | $4,935 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 7,400 | $1,592 | $213.68 | $191.80 - $242.64 |