Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q1 2025 | 3,604 | $499 | $142.96 | $128.51 - $157.09 |
| Q3 2019 | 8,983 | $2,091 | $232.85 | $215.78 - $246.99 |
| Q2 2019 | 169,792 | $39,709 | $230.90 | $219.20 - $245.35 |
| Q1 2019 | 234,347 | $55,395 | $314.89 | $216.12 - $344.00 |
| Q4 2018 | 236,651 | $71,213 | $319.14 | $278.46 - $358.41 |
| Q3 2018 | 227,937 | $80,532 | $344.30 | $288.13 - $388.67 |
| Q2 2018 | 249,280 | $72,351 | $281.15 | $249.17 - $310.91 |
| Q1 2018 | 273,494 | $74,888 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 268,045 | $85,391 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 264,030 | $82,673 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 253,902 | $68,899 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 268,476 | $73,407 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 232,153 | $65,834 | $296.43 | $268.00 - $329.83 |
| Q3 2016 | 210,846 | $66,001 | $296.18 | $240.07 - $333.65 |
| Q2 2016 | 210,492 | $50,901 | $263.54 | $223.02 - $292.69 |
| Q1 2016 | 174,783 | $45,500 | $264.15 | $242.07 - $301.02 |
| Q4 2015 | 165,053 | $50,564 | $287.35 | $254.00 - $311.65 |
| Q3 2015 | 179,059 | $52,251 | $330.23 | $265.00 - $412.24 |
| Q2 2015 | 215,582 | $87,082 | $401.33 | $368.88 - $432.88 |
| Q1 2015 | 210,202 | $88,756 | $394.14 | $334.40 - $480.18 |
| Q4 2014 | 210,293 | $71,384 | $323.51 | $290.85 - $361.93 |
| Q3 2014 | 194,809 | $64,445 | $329.72 | $298.31 - $349.00 |
| Q2 2014 | 184,227 | $58,089 | $300.97 | $272.02 - $322.25 |
| Q1 2014 | 211,807 | $64,785 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 230,143 | $64,383 | $258.65 | $221.07 - $298.82 |
| Q3 2013 | 228,156 | $54,931 | $223.81 | $203.55 - $248.95 |
| Q2 2013 | 182,601 | $39,296 | $213.68 | $191.80 - $242.64 |