Rallybio Corp
RLYB- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001739410
No open-market purchases or sales by Rallybio Corp insiders were filed in the last 90 days; 37 institutions reported holding it in 13F filings for Q2 2026, worth $65.0M in total; Viking Global Investors is the only superinvestor holding it.
13F holders, Q1 2025
Institutional positions in Rallybio Corp as of Mar 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 47
- −2 vs. Q4 2024
- Shares held
- 32.0M
- −427.1K (−1.3%) vs. Q4 2024
- Total value
- $20.9M
- −$10.2M (−32.8%) vs. Q4 2024
- New holders
- 2
- 9 more added
- Sold out
- 4
- 15 more reduced
Compare with Q4 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting RLYB on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 37 | $65.0M |
| Q1 2026 | 38 | $41.9M |
| Q4 2025 | 46 | $16.6M |
| Q3 2025 | 45 | $14.1M |
| Q2 2025 | 48 | $10.5M |
| Q1 2025 | 47 | $20.9M |
| Q4 2024 | 49 | $31.1M |
| Q3 2024 | 49 | $36.5M |
| Q2 2024 | 66 | $42.4M |
| Q1 2024 | 62 | $55.9M |
| Q4 2023 | 54 | $75.9M |
| Q3 2023 | 58 | $105.2M |
| Q2 2023 | 59 | $188.3M |
| Q1 2023 | 53 | $183.3M |
| Q4 2022 | 58 | $212.3M |
| Q3 2022 | 53 | $402.1M |
| Q2 2022 | 47 | $208.8M |
| Q1 2022 | 47 | $193.9M |
| Q4 2021 | 38 | $260.1M |
| Q3 2021 | 34 | $419.9M |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q1 2025
Shares, value and share of portfolio for each institution holding Rallybio Corp; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 944 | $618 | 0.00% | −4−0.4% | Reduced |
| Point72 (DIFC) Ltd | 975 | $638 | 0.00% | −4,954−83.6% | Reduced |
| BNP Paribas Arbitrage, SA | 983 | $643 | 0.00% | −117−10.6% | Reduced |
| Federated Hermes, Inc. | 2,209 | $1.45K | 0.00% | −3,782−63.1% | Reduced |
| SBI Securities Co., Ltd. | 4,488 | $2.94K | 0.00% | −868−16.2% | Reduced |
| Tower Research Capital LLC (TRC) | 5,191 | $3.40K | 0.00% | +1,558+42.9% | Added |
| Hartford Financial Management Inc. | 6,500 | $4.25K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 8,747 | $5.72K | 0.00% | +9+0.1% | Added |
| Mercer Global Advisors Inc | 10,000 | $6.54K | 0.00% | 00.0% | Unchanged |
| Captrust Financial Advisors | 10,000 | $6.54K | 0.00% | 00.0% | Unchanged |
| Point72 Asia (Singapore) Pte. Ltd. | 10,007 | $6.55K | 0.00% | −12,645−55.8% | Reduced |
| Jane Street Group, LLC | 10,624 | $6.95K | 0.00% | +10,624 | New |
| HSBC Holdings PLC | 12,054 | $7.89K | 0.00% | −2,024−14.4% | Reduced |
| Utah Retirement Systems | 13,240 | $8.67K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 13,400 | $8.77K | 0.00% | 00.0% | Unchanged |
| Great Valley Advisor Group, Inc. | 15,000 | $9.82K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 15,398 | $10.1K | 0.00% | +7,039+84.2% | Added |
| Barclays PLC | 15,390 | $10.1K | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 33,270 | $21.8K | 0.00% | +16,124+94.0% | Added |
| Morgan Stanley | 36,484 | $23.9K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 38,124 | $25.0K | 0.00% | −35,478−48.2% | Reduced |
| Wells Fargo & Company | 42,200 | $27.6K | 0.00% | +1,900+4.7% | Added |
| Citadel Advisors LLC | 52,811 | $34.6K | 0.00% | +52,811 | New |
| State Street Corp | 62,072 | $40.6K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 66,711 | $43.7K | 0.00% | −10,100−13.1% | Reduced |
| Acadian Asset Management LLC | 90,247 | $57.0K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 91,020 | $59.6K | 0.00% | −280−0.3% | Reduced |
| Bridgeway Capital Management, LLC | 91,600 | $60.0K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 209,419 | $137.1K | 0.00% | +8,200+4.1% | Added |
| Millennium Management LLC | 227,230 | $148.7K | 0.00% | −111,679−33.0% | Reduced |
| Geode Capital Management, LLC | 247,552 | $162.1K | 0.00% | −275−0.1% | Reduced |
| Renaissance Technologies LLC | 396,500 | $259.5K | 0.00% | −44,818−10.2% | Reduced |
| Mariner, LLC | 404,546 | $264.8K | 0.00% | 00.0% | Unchanged |
| Laurion Capital Management LP | 735,543 | $481.4K | 0.04% | 00.0% | Unchanged |
| Allostery Investments LP | 752,235 | $492.3K | 0.71% | −51,163−6.4% | Reduced |
| AJU IB Investment Co., Ltd. | 754,678 | $493.9K | 0.59% | 00.0% | Unchanged |
| Vanguard Group Inc | 971,927 | $636.6K | 0.00% | +46,406+5.0% | Added |
| Almitas Capital LLC | 1,300,581 | $851.2K | 0.28% | +2,462+0.2% | Added |
| Canaan Partners XI LLC | 1,532,552 | $1.00M | 1.51% | −165,132−9.7% | Reduced |
| Standard Life Aberdeen plc | 1,727,067 | $1.13M | 0.00% | 00.0% | Unchanged |
| FMR LLC | 1,785,218 | $1.17M | 0.00% | +18,517+1.0% | Added |
| Pivotal bioVenture Partners Investment Advisor LLC | 2,404,644 | $1.56M | 1.26% | 00.0% | Unchanged |
| TPG GP A, LLC | 3,028,414 | $1.98M | 0.04% | 00.0% | Unchanged |
| New Leaf Venture Partners, L.L.C. | 3,301,603 | $2.15M | 4.78% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 3,630,724 | $2.38M | 0.90% | 00.0% | Unchanged |
| Johnson & Johnson | 3,636,363 | $2.38M | 0.70% | 00.0% | Unchanged |
| Viking Global Investors LPSuperinvestorViking Global Investors | 4,194,777 | $2.75M | 0.01% | 00.0% | Unchanged |
| Northeast Financial Consultants Inc | 0 | $0 | 0.00% | −96,422−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −35,736−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −14,817−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −2,447−100.0% | Sold out |