Citable ownership snapshot
BIIB's latest 13F holder table lists AQR Capital Management as the largest holder in this view with 1,936,859 shares valued at $416.93M.
| Holder | Report date | Value | Portfolio weight |
|---|---|---|---|
| AQR Capital Management | Jun 30, 2026 | $416.93M | 0.1% |
| Citadel Advisors | Jun 30, 2026 | $187.44M | 0.0% |
| Balyasny Asset Management | Jun 30, 2026 | $78.88M | 0.1% |
| Point72 Asset Management | Jun 30, 2026 | $19.18M | 0.0% |
| D.E. Shaw & Co. | Jun 30, 2026 | $17.47M | 0.0% |
| Renaissance Technologies | Jun 30, 2026 | $16.80M | 0.0% |
| Millennium Management | Jun 30, 2026 | $10.69M | 0.0% |
| Glenview Capital Management | Mar 31, 2026 | $10.45M | 0.3% |
Source: SEC EDGAR 13F filings; period Jun 30, 2026; filed Aug 14, 2026.
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