Institutional Owners for BIIB
| Institution | Class | Position | Value | Shares | Portfolio Percentage (%) | Previous Percentage (%) | Shares Delta | Shares Delta (%) | Period of Report |
|---|---|---|---|---|---|---|---|---|---|
| VANGUARD GROUP INC | COM | 1 | $3,848,249,787 | 16,600,163 | 0.00 | 0.00 | 29,765 | 0.18 | 06-30-2024 |
| PRIMECAP MANAGEMENT CO/CA/ | COM | 2 | $3,787,543,315 | 16,338,294 | 0.00 | 0.00 | 312,418 | 1.95 | 06-30-2024 |
| BLACKROCK INC | COM | 3 | $3,370,314,430 | 14,538,497 | 0.00 | 0.00 | 393,509 | 2.78 | 06-30-2024 |
| STATE STREET CORP | COM | 4 | $1,644,998,893 | 7,096,018 | 0.00 | 0.00 | 349,010 | 5.17 | 06-30-2024 |
