Stocktoria
BIOGEN INC. BIIB
BIOGEN INC. institutional holders
| Investor | Shares | Value | % of company |
|---|---|---|---|
| BlackRock Finance, Inc. | 14,538,497 | $3.4B | 9.88% |
| AQR CAPITAL MANAGEMENT LLC | 1,936,859 | $416.9M | 1.32% |
| CITADEL ADVISORS LLC | 867,556 | $187.4M | 0.59% |
| Point72 Asset Management, L.P. | 88,749 | $19.2M | 0.06% |
| D. E. Shaw & Co., Inc. | 80,838 | $17.5M | 0.05% |
| RENAISSANCE TECHNOLOGIES LLC | 77,744 | $16.8M | 0.05% |
| MILLENNIUM MANAGEMENT LLC | 49,500 | $10.7M | 0.03% |
| TWO SIGMA INVESTMENTS, LP | 7,105 | $1.5M | — |
% of company = reported institutional shares ÷ shares outstanding. Based on the latest reports; not every holder reports every quarter.
Computed from company filings · US · as of 2025-12-31. Facts plus Stocktoria's own computed scores — not investment advice.