Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 2,473 | $435 | $163.37 | $138.00 - $185.17 |
| Q1 2025 | 1,480 | $203 | $142.96 | $128.51 - $157.09 |
| Q2 2024 | 1,021 | $237 | $217.32 | $189.44 - $237.54 |
| Q4 2021 | 1,111 | $267 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 1,144 | $324 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 1,736 | $601 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 890 | $249 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 933 | $228 | $259.08 | $223.25 - $363.92 |
| Q3 2020 | 809 | $229 | $278.91 | $261.87 - $312.00 |
| Q2 2020 | 810 | $217 | $300.59 | $257.60 - $350.24 |
| Q1 2020 | 865 | $274 | $303.47 | $262.25 - $374.99 |
| Q4 2019 | 849 | $252 | $277.46 | $219.70 - $318.00 |
| Q2 2019 | 950 | $222 | $230.90 | $219.20 - $245.35 |
| Q1 2018 | 231 | $62 | $310.41 | $259.76 - $370.57 |
| Q4 2017 | 256 | $84 | $320.80 | $301.81 - $348.84 |
| Q3 2017 | 274 | $90 | $296.11 | $269.50 - $330.00 |
| Q2 2017 | 292 | $39 | $264.42 | $244.28 - $291.90 |
| Q1 2017 | 244 | $66 | $282.75 | $260.50 - $301.42 |
| Q4 2016 | 329 | $96 | $296.43 | $268.00 - $329.83 |