RallybioRLYB
13F holders, Q4 2024 (December 31)At the end of Q4 2024, 49 institutions reported holding Rallybio Corp. (RLYB) in their 13F filings, unchanged from Q3 2024. 4 opened new positions and 7 sold out. The largest holders were Viking Global Investors ($4.0M), Johnson & Johnson ($3.5M) and 5AM Venture Management, LLC ($3.5M). 3 famous investors held it, including Andreas Halvorsen (0.0% of Viking Global Investors's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Rallybio Corp.
- CUSIP
- 75120L100
- Latest filing quarter
- Q4 2025
History
Number of 13F holders
Total Exit/New Position Q3 2024 → Q4 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $59K |
| Exits | 7 | $207K |
All 13F filers, Q3 2024 → Q4 2024: 621,792 shares bought and 969,623 shares sold, net −347,831 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 49 holders
| Viking Global Investors | 0.01% | No change | 4,194,777 | $4.0M |
| Johnson & Johnson | 0.90% | No change | 3,636,363 | $3.5M |
| 5AM Venture Management, LLC | 0.83% | No change | 3,630,724 | $3.5M |
| New Leaf Venture Partners, L.L.C. | 4.24% | No change | 3,301,603 | $3.2M |
| TPG GP A, LLC | 0.05% | No change | 3,028,414 | $2.9M |
| Pivotal bioVenture Partners Investment Advisor LLC | 1.56% | No change | 2,404,644 | $2.3M |
| FMR LLC | 0.00% | Reduce -23.7% | 1,766,701 | $1.7M |
| Aberdeen Group plc | 0.00% | No change | 1,727,067 | $1.7M |
| Canaan Partners XI LLC | 2.11% | Reduce -11.2% | 1,697,684 | $1.6M |
| Almitas Capital LLC | 0.27% | Add +48.3% | 1,298,119 | $1.2M |
| Vanguard Group Inc. | 0.00% | No change | 925,521 | $889K |
| Allostery Investments LP | 1.51% | — | 803,398 | $771K |
| AJU IB Investment Co., Ltd. | 0.71% | — | 754,678 | $724K |
| Laurion Capital Management LP | 0.05% | No change | 735,543 | $706K |
| Renaissance Technologies | 0.00% | Add +9.3% | 441,318 | $424K |
| Mariner, LLC | 0.00% | Reduce -0.3% | 404,546 | $388K |
| Millennium Management | 0.00% | Reduce -1.2% | 338,909 | $325K |
| Geode Capital Management, LLC | 0.00% | Add +1.2% | 247,827 | $238K |
| BlackRock, Inc. | 0.00% | Add +0.2% | 201,219 | $193K |
| Northeast Financial Consultants Inc | 0.00% | Add +336.5% | 96,422 | $93K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 91,600 | $88K |
| Two Sigma Advisers, LP | 0.00% | Reduce -0.3% | 91,300 | $88K |
| Acadian Asset Management LLC | 0.00% | No change | 90,247 | $86K |
| Two Sigma Investments, LP | 0.00% | Reduce -11.0% | 76,811 | $74K |
| Northern Trust Corp. | 0.00% | Add +20.8% | 73,602 | $71K |
| State Street Corp. | 0.00% | No change | 62,072 | $60K |
| Wells Fargo & Company | 0.00% | Reduce -19.9% | 40,300 | $39K |
| Morgan Stanley | 0.00% | No change | 36,484 | $35K |
| Engineers Gate Manager LP | 0.00% | New | 35,736 | $34K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.01% | Add +2.4% | 22,652 | $22K |
| Squarepoint Ops LLC | 0.00% | Reduce -6.6% | 17,146 | $16K |
| Barclays PLC | 0.00% | No change | 15,390 | $15K |
| Great Valley Advisor Group, Inc. | 0.00% | New | 15,000 | $14K |
| XTX Topco Ltd | 0.00% | Add +1.1% | 14,817 | $14K |
| HSBC Holdings PLC | 0.00% | No change | 14,078 | $13K |
| ADAR1 Capital Management, LLC | 0.00% | Add +0.8% | 13,400 | $13K |
| Utah Retirement Systems | 0.00% | No change | 13,240 | $13K |
| Mercer Global Advisors Inc. | 0.00% | New | 10,000 | $10K |
| Captrust Financial Advisors | 0.00% | No change | 10,000 | $10K |
| Bank of America Corp. | 0.00% | Reduce -0.0% | 8,738 | $8K |
| UBS Group AG | 0.00% | Add +256.9% | 8,359 | $8K |
| Hartford Financial Management Inc. | 0.00% | No change | 6,500 | $6K |
| Federated Hermes, Inc. | 0.00% | Reduce -24.8% | 5,991 | $6K |
| Point72 (DIFC) Ltd | 0.00% | Reduce -27.2% | 5,929 | $6K |
| SBI Securities Co., Ltd. | 0.00% | — | 5,356 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +5.0% | 3,633 | $3K |
| Citigroup Inc. | 0.00% | Add +4349.1% | 2,447 | $2K |
| BNP Paribas Financial Markets | 0.00% | New | 1,100 | $1K |
| JPMorgan Chase & Co. | 0.00% | Add +7.5% | 948 | $910 |
"% of holder's portfolio" is RLYB's weight in each manager's 13F, not the share of Rallybio Corp. the manager owns.