Ticker: BIIB CUSIP: 09062X103 Class: COM
Note: Option positions (PUT/CALL) are excluded.
| Period | Shares | Value ($000) | Average Close | Price Range |
|---|---|---|---|---|
| Q4 2025 | 455 | $80 | $163.37 | $138.00 - $185.17 |
| Q3 2025 | 455 | $64 | $135.17 | $121.05 - $150.28 |
| Q2 2025 | 455 | $57 | $124.60 | $110.04 - $137.32 |
| Q1 2025 | 455 | $62 | $142.96 | $128.51 - $157.09 |
| Q4 2024 | 455 | $70 | $168.67 | $145.07 - $195.00 |
| Q3 2024 | 455 | $88 | $209.21 | $188.78 - $238.00 |
| Q2 2024 | 455 | $105 | $217.32 | $189.44 - $237.54 |
| Q1 2024 | 455 | $98 | $234.20 | $211.02 - $268.30 |
| Q4 2023 | 455 | $118 | $245.62 | $220.86 - $269.43 |
| Q3 2023 | 455 | $117 | $267.47 | $251.85 - $287.60 |
| Q2 2023 | 455 | $130 | $297.86 | $273.39 - $319.76 |
| Q1 2023 | 455 | $127 | $276.70 | $254.80 - $295.90 |
| Q4 2022 | 505 | $140 | $282.44 | $250.31 - $311.88 |
| Q3 2022 | 6,805 | $1,816,935 | $212.38 | $193.65 - $283.44 |
| Q2 2022 | 6,905 | $1,408,206 | $204.43 | $187.16 - $225.50 |
| Q1 2022 | 7,605 | $1,601,613 | $217.46 | $192.67 - $249.00 |
| Q4 2021 | 7,605 | $1,824,592 | $257.12 | $221.72 - $290.76 |
| Q3 2021 | 7,200 | $2,037,528 | $327.75 | $282.64 - $372.12 |
| Q2 2021 | 7,600 | $2,631,652 | $302.94 | $257.03 - $468.55 |
| Q1 2021 | 7,600 | $2,126,100 | $269.69 | $238.40 - $296.38 |
| Q4 2020 | 7,900 | $1,934,394 | $259.08 | $223.25 - $363.92 |
| Q1 2014 | 2,550 | $779,969 | $317.43 | $270.62 - $358.89 |
| Q4 2013 | 2,550 | $713,363 | $258.65 | $221.07 - $298.82 |