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, Q4 2023
Institutional positions in Rallybio Corp as of Dec 31, 2023. 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
- 54
- −3 vs. Q3 2023
- Shares held
- 31.8M
- +938.4K (+3.0%) vs. Q3 2023
- Total value
- $75.9M
- −$28.0M (−26.9%) vs. Q3 2023
- New holders
- 9
- 19 more added
- Sold out
- 12
- 11 more reduced
1 institution that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding Rallybio Corp; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viking Global Investors LPSuperinvestorViking Global Investors | 4,194,777 | $10.0M | 0.04% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 3,630,724 | $8.68M | 2.30% | 00.0% | Unchanged |
| New Leaf Venture Partners, L.L.C. | 3,301,603 | $7.89M | 6.36% | 00.0% | Unchanged |
| TPG GP A, LLC | 3,028,414 | $7.24M | 0.12% | 00.0% | Unchanged |
| FMR LLC | 2,535,571 | $6.06M | 0.00% | −710,716−21.9% | Reduced |
| Pivotal bioVenture Partners Investment Advisor LLC | 2,404,644 | $5.75M | 1.46% | 00.0% | Unchanged |
| Canaan Partners XI LLC | 2,059,712 | $4.92M | 6.15% | 00.0% | Unchanged |
| Novo Holdings A/S | 1,767,861 | $4.23M | 0.28% | −420,138−19.2% | Reduced |
| BlackRock Inc. | 1,755,594 | $4.20M | 0.00% | +124,304+7.6% | Added |
| Standard Life Aberdeen plc | 1,727,067 | $4.13M | 0.01% | +1,727,067 | New |
| Vanguard Group Inc | 1,063,970 | $2.54M | 0.00% | +14,139+1.3% | Added |
| Laurion Capital Management LP | 783,391 | $1.87M | 0.07% | 00.0% | Unchanged |
| State Street Corp | 508,570 | $1.22M | 0.00% | +3,744+0.7% | Added |
| Geode Capital Management, LLC | 505,261 | $1.21M | 0.00% | +7,007+1.4% | Added |
| Mariner, LLC | 404,655 | $967.1K | 0.00% | −3,525−0.9% | Reduced |
| Blue Owl Capital Holdings LP | 350,240 | $837.1K | 0.20% | +350,240 | New |
| Citadel Advisors LLC | 318,462 | $761.1K | 0.00% | +36,506+12.9% | Added |
| Northern Trust Corp | 249,788 | $597.0K | 0.00% | +28,748+13.0% | Added |
| Anson Funds Management LP | 183,970 | $439.7K | 0.09% | +183,970 | New |
| Bridgeway Capital Management, LLC | 128,500 | $307.1K | 0.01% | +46,500+56.7% | Added |
| Morgan Stanley | 99,119 | $236.9K | 0.00% | +83,342+528.2% | Added |
| Bank of New York Mellon Corp | 90,278 | $215.8K | 0.00% | −409−0.5% | Reduced |
| Charles Schwab Investment Management Inc | 77,018 | $184.1K | 0.00% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 63,849 | $152.6K | 0.00% | +2,750+4.5% | Added |
| Bank of America Corp | 61,226 | $146.3K | 0.00% | +32,410+112.5% | Added |
| Barclays PLC | 57,479 | $137.4K | 0.00% | +51,326+834.2% | Added |
| Rhumbline Advisers | 38,759 | $92.6K | 0.00% | −100.0% | Reduced |
| Millennium Management LLC | 35,571 | $85.0K | 0.00% | +35,571 | New |
| Dimensional Fund Advisors LP | 29,643 | $70.8K | 0.00% | −3,158−9.6% | Reduced |
| UBS Group AG | 25,732 | $61.5K | 0.00% | +7,851+43.9% | Added |
| Jane Street Group, LLC | 24,719 | $59.1K | 0.00% | +24,719 | New |
| HarbourVest Partners LLC | 21,877 | $52.3K | 0.02% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 19,972 | $47.7K | 0.00% | −20.0% | Reduced |
| Goldman Sachs Group Inc | 19,018 | $45.5K | 0.00% | +4,524+31.2% | Added |
| SG Americas Securities, LLC | 16,813 | $40.0K | 0.00% | +16,813 | New |
| American International Group, Inc. | 15,197 | $36.3K | 0.00% | −61−0.4% | Reduced |
| Marshall Wace, LLP | 15,025 | $35.9K | 0.00% | +15,025 | New |
| HSBC Holdings PLC | 14,145 | $33.7K | 0.00% | +14,145 | New |
| Squarepoint Ops LLC | 14,036 | $33.5K | 0.00% | +3,839+37.6% | Added |
| Citigroup Inc | 13,631 | $32.6K | 0.00% | +13,558+18,572.6% | Added |
| Voya Investment Management LLC | 13,254 | $31.7K | 0.00% | +762+6.1% | Added |
| Utah Retirement Systems | 13,240 | $31.6K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 11,417 | $27.3K | 0.00% | +11,417 | New |
| New York State Common Retirement Fund | 10,467 | $25.0K | 0.00% | −66−0.6% | Reduced |
| Capstone Investment Advisors, LLC | 10,000 | $23.9K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 9,629 | $23.0K | 0.00% | +1,854+23.8% | Added |
| Royal Bank of Canada | 9,121 | $22.0K | 0.00% | +3,932+75.8% | Added |
| California State Teachers Retirement System | 5,032 | $12.0K | 0.00% | −1,714−25.4% | Reduced |
| Tower Research Capital LLC (TRC) | 3,709 | $8.86K | 0.00% | +1,024+38.1% | Added |
| Legal & General Group Plc | 2,946 | $7.04K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,525 | $6.04K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,195 | $5.00K | 0.00% | −166−7.0% | Reduced |
| STRS Ohio | 1,700 | $4.00K | 0.00% | 00.0% | Unchanged |
| Resources Management Corp | 250 | $1.00K | 0.00% | 00.0% | Unchanged |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −375,960−100.0% | Sold out |
| VR Adviser, LLC | 0 | $0 | 0.00% | −268,532−100.0% | Sold out |
| Financial Security Advisor, Inc. | 0 | $0 | 0.00% | −50,278−100.0% | Sold out |
| Northeast Financial Consultants Inc | 0 | $0 | 0.00% | −18,151−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −16,979−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −13,144−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −12,342−100.0% | Sold out |
| Mercer Global Advisors Inc | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −1,759−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −1,399−100.0% | Sold out |
| Toronto Dominion Bank | 0 | $0 | 0.00% | −107−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −45−100.0% | Sold out |
| CHI Advisors LLC | – | – | – | – | Not filed |