Who Owns RALLYBIO CORP (RLYB)? -- Institutional Holders (2026-06-30)
44 institutions reported holding $76.6M of RALLYBIO CORP (RLYB) in SEC 13F filings for 2026-06-30. Largest institutional holders: ADAR1 Capital Management, LLC ($14.8M), CITADEL ADVISORS LLC ($12.7M), FMR LLC ($12.7M), VIKING GLOBAL INVESTORS LP ($8.4M), TPG GP A, LLC ($6.1M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | ADAR1 Capital Management, LLC | $14.8M | 926,352 | Added |
| 2 | CITADEL ADVISORS LLC | $12.7M | 7.7M | Added |
| 3 | FMR LLC | $12.7M | 794,720 | Added |
| 4 | VIKING GLOBAL INVESTORS LP | $8.4M | 524,347 | Hold |
| 5 | TPG GP A, LLC | $6.1M | 378,551 | Hold |
| 6 | Pivotal bioVenture Partners Investment Advisor LLC | $4.8M | 300,579 | Hold |
| 7 | RENAISSANCE TECHNOLOGIES LLC | $3.2M | 199,907 | Added |
| 8 | VANGUARD GROUP INC | $3.1M | 190,759 | Added |
| 9 | Nantahala Capital Management, LLC | $3.0M | 188,422 | Trimmed |
| 10 | Almitas Capital LLC | $1.9M | 120,682 | Trimmed |
| 11 | Rangeley Capital, LLC | $1.7M | 104,850 | Added |
| 12 | Mariner, LLC | $809,056 | 50,566 | Hold |
| 13 | JANE STREET GROUP, LLC | $758,768 | 47,423 | New |
| 14 | GEODE CAPITAL MANAGEMENT, LLC | $512,865 | 32,047 | Trimmed |
| 15 | BlackRock, Inc. | $485,312 | 30,332 | Added |
| 16 | HRT FINANCIAL LP | $410,000 | 25,657 | New |
| 17 | XTX Topco Ltd | $343,952 | 21,497 | Added |
| 18 | TWO SIGMA INVESTMENTS, LP | $265,904 | 16,619 | New |
| 19 | STATE STREET CORP | $207,936 | 12,996 | New |
| 20 | Quadrature Capital Ltd | $207,920 | 12,995 | New |
| 21 | DIMENSIONAL FUND ADVISORS LP | $180,480 | 11,280 | Hold |
| 22 | Hartford Financial Management Inc. | $12,992 | 812 | Hold |
| 23 | SBI Securities Co., Ltd. | $8,096 | 506 | Trimmed |
| 24 | Caitong International Asset Management Co., Ltd | $6,944 | 434 | New |
| 25 | UBS Group AG | $2,336 | 146 | Trimmed |
Source: SEC Form 13F filings · as of 2026-06-30