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 | 1,923,557 | $346.2M | 1.31% |
| Point72 Asset Management, L.P. | 814,317 | $149.3M | 0.55% |
| CITADEL ADVISORS LLC | 530,693 | $97.3M | 0.36% |
| MILLENNIUM MANAGEMENT LLC | 281,764 | $51.7M | 0.19% |
| RENAISSANCE TECHNOLOGIES LLC | 203,396 | $37.3M | 0.14% |
| D. E. Shaw & Co., Inc. | 21,900 | $4.0M | 0.01% |
| TWO SIGMA INVESTMENTS, LP | 9,444 | $1.7M | 0.01% |
% 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.