RallybioRLYB
13F holders, Q3 2024 (September 30)At the end of Q3 2024, 49 institutions reported holding Rallybio Corp. (RLYB) in their 13F filings, down 17 from Q2 2024. 1 opened new positions and 18 sold out. The largest holders were Viking Global Investors ($4.9M), Johnson & Johnson ($4.3M) and 5AM Venture Management, LLC ($4.2M). 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 Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 1 | $17K |
| Exits | 18 | $974K |
All 13F filers, Q2 2024 → Q3 2024: 1,109,304 shares bought and 1,414,642 shares sold, net −305,338 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 49 holders
| Viking Global Investors | 0.02% | No change | 4,194,777 | $4.9M |
| Johnson & Johnson | 1.00% | No change | 3,636,363 | $4.3M |
| 5AM Venture Management, LLC | 0.88% | No change | 3,630,724 | $4.2M |
| New Leaf Venture Partners, L.L.C. | 3.97% | No change | 3,301,603 | $3.9M |
| TPG GP A, LLC | 0.06% | No change | 3,028,414 | $3.5M |
| Pivotal bioVenture Partners Investment Advisor LLC | 1.67% | No change | 2,404,644 | $2.8M |
| FMR LLC | 0.00% | Add +1.1% | 2,315,480 | $2.7M |
| Canaan Partners XI LLC | 1.89% | Reduce -7.2% | 1,910,987 | $2.2M |
| Aberdeen Group plc | 0.00% | No change | 1,727,067 | $2.0M |
| Vanguard Group Inc. | 0.00% | Add +7.9% | 925,521 | $1.1M |
| Almitas Capital LLC | 0.36% | Add +767.8% | 875,434 | $1.0M |
| Laurion Capital Management LP | 0.06% | Reduce -6.1% | 735,543 | $861K |
| Mariner, LLC | 0.00% | Reduce 0.0% | 405,629 | $475K |
| Renaissance Technologies | 0.00% | Add +18.5% | 403,700 | $472K |
| Millennium Management | 0.00% | Reduce -25.4% | 342,944 | $401K |
| Geode Capital Management, LLC | 0.00% | Add +11.3% | 244,986 | $287K |
| BlackRock, Inc. | 0.00% | — | 200,850 | $235K |
| Susquehanna International Group, LLP | 0.00% | Reduce -3.9% | 92,333 | $108K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -4.8% | 91,600 | $107K |
| Two Sigma Advisers, LP | 0.00% | Add +273.9% | 91,600 | $107K |
| Acadian Asset Management LLC | 0.00% | Add +33.3% | 90,247 | $104K |
| Two Sigma Investments, LP | 0.00% | Add +62.1% | 86,324 | $101K |
| State Street Corp. | 0.00% | Reduce -4.8% | 62,072 | $73K |
| Northern Trust Corp. | 0.00% | Reduce -73.4% | 60,942 | $71K |
| Wells Fargo & Company | 0.00% | Add +33.1% | 50,300 | $59K |
| Morgan Stanley | 0.00% | Reduce -33.8% | 36,484 | $43K |
| Jane Street Group, LLC | 0.00% | Reduce -58.0% | 22,275 | $26K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | Reduce -51.4% | 22,119 | $26K |
| Northeast Financial Consultants Inc | 0.00% | No change | 22,088 | $26K |
| HarbourVest Partners LLC | 0.01% | No change | 21,877 | $26K |
| Dimensional Fund Advisors LP | 0.00% | No change | 21,203 | $25K |
| Squarepoint Ops LLC | 0.00% | Reduce -42.5% | 18,364 | $21K |
| Barclays PLC | 0.00% | Reduce -42.0% | 15,390 | $18K |
| XTX Topco Ltd | 0.00% | New | 14,649 | $17K |
| HSBC Holdings PLC | 0.00% | Reduce -19.7% | 14,078 | $16K |
| ADAR1 Capital Management, LLC | 0.00% | Add +18.8% | 13,300 | $16K |
| Utah Retirement Systems | 0.00% | No change | 13,240 | $15K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -80.3% | 10,664 | $12K |
| Captrust Financial Advisors | 0.00% | Reduce -0.9% | 10,000 | $12K |
| Bank of America Corp. | 0.00% | Reduce -1.7% | 8,739 | $10K |
| Point72 (DIFC) Ltd | 0.00% | Reduce -41.5% | 8,146 | $10K |
| Federated Hermes, Inc. | 0.00% | Add +28.1% | 7,964 | $9K |
| Catalyst Funds Management Pty Ltd | 0.00% | No change | 7,800 | $9K |
| Hartford Financial Management Inc. | 0.00% | No change | 6,500 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -73.8% | 3,460 | $4K |
| UBS Group AG | 0.00% | Reduce -78.0% | 2,342 | $3K |
| Russell Investments Group, Ltd. | 0.00% | Reduce -83.6% | 1,049 | $1K |
| JPMorgan Chase & Co. | 0.00% | No change | 882 | $1K |
| Citigroup Inc. | 0.00% | Reduce -99.7% | 55 | $64 |
"% of holder's portfolio" is RLYB's weight in each manager's 13F, not the share of Rallybio Corp. the manager owns.