Rallybio Corp - RLYB
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADAR1 Capital Management, LLC | History | No change | 926,352 | 14,821 | 0.68% | 0.68% | 1 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| FMR LLC | History | No change | 794,720 | 12,715 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| VIKING GLOBAL INVESTORS LP | History | No change | 524,347 | 8,389 | 0.02% | 0.02% | 3 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TPG GP A, LLC | History | No change | 378,551 | 6,056 | 0.12% | 0.12% | 4 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Pivotal bioVenture Partners Investment Advisor LLC | History | No change | 300,579 | 4,809 | 1.56% | 1.56% | 5 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | No change | 199,907 | 3,198 | 0.0% | 0.0% | 6 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Nantahala Capital Management, LLC | History | No change | 188,422 | 3,014 | 0.1% | 0.1% | 7 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | No change | 172,497 | 2,759 | 0.0% | 0.0% | 8 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Almitas Capital LLC | History | No change | 120,682 | 1,930 | 0.46% | 0.46% | 9 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Rangeley Capital, LLC | History | No change | 104,850 | 1,677 | 1.53% | 1.53% | 10 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| CITADEL ADVISORS LLC | History | No change | 72,200 | 1,155 | 0.0% | 0.0% | 11 | 0 | 0.0% | Q2 2026 | Sep 02, 2026 |
| Mariner, LLC | History | No change | 50,566 | 809 | 0.0% | 0.0% | 12 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| JANE STREET GROUP, LLC | History | No change | 47,423 | 758 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | No change | 32,047 | 512 | 0.0% | 0.0% | 14 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| BlackRock, Inc. | History | No change | 30,332 | 485 | 0.0% | 0.0% | 15 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| HRT FINANCIAL LP | History | No change | 25,657 | 410 | 0.0% | 0.0% | 16 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| XTX Topco Ltd | History | No change | 21,497 | 343 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | Added to | 19,458 | 334 | 0.0% | 0.0% | 18 | +8,178 | 72.5% | Q3 2026 | Nov 04, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | No change | 16,820 | 269 | 0.0% | 0.0% | 19 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | No change | 16,619 | 265 | 0.0% | 0.0% | 20 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | No change | 12,996 | 207 | 0.0% | 0.0% | 21 | 0 | 0.0% | Q2 2026 | Sep 22, 2026 |
| Quadrature Capital Ltd | History | No change | 12,995 | 207 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 1,442 | 23 | 0.0% | 0.0% | 23 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Hartford Financial Management Inc. | History | No change | 812 | 13 | 0.0% | 0.0% | 24 | 0 | 0.0% | Q3 2026 | Oct 21, 2026 |
| Caitong International Asset Management Co., Ltd | History | Reduced | 421 | 7 | 0.0% | 0.0% | 25 | -13 | -3.0% | Q3 2026 | Oct 29, 2026 |
| MORGAN STANLEY | History | No change | 125 | 2 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| UBS Group AG | History | No change | 146 | 2 | 0.0% | 0.0% | 27 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Truvestments Capital LLC | History | No change | 129 | 2 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| SBI Securities Co., Ltd. | History | Reduced | 77 | 1 | 0.0% | 0.0% | 30 | -429 | -84.78% | Q3 2026 | Oct 21, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | No change | 120 | 1 | 0.0% | 0.0% | 29 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| EverSource Wealth Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -31 | -100.0% | Q3 2026 | Nov 04, 2026 |
| JPMORGAN CHASE & CO | History | No change | 9 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |
| WELLS FARGO & COMPANY/MN | History | No change | 37 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| BARCLAYS PLC | History | No change | 3 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| DANSKE BANK A/S | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| Allworth Financial LP | History | No change | 6 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Fortitude Family Office, LLC | History | No change | 53 | 0 | — | — | — | 0 | 0.0% | Q3 2026 | Oct 14, 2026 |