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 2023
Institutional positions in Rallybio Corp as of Mar 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
- 53
- −5 vs. Q4 2022
- Shares held
- 32.1M
- −203.2K (−0.6%) vs. Q4 2022
- Total value
- $183.3M
- −$29.0M (−13.6%) vs. Q4 2022
- New holders
- 3
- 19 more added
- Sold out
- 8
- 14 more reduced
Compare with Q4 2022: 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 2023
Shares, value and share of portfolio for each institution holding Rallybio Corp; share changes are against Q4 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viking Global Investors LPSuperinvestorViking Global Investors | 4,194,777 | $24.0M | 0.11% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 3,630,724 | $20.7M | 5.30% | −100,000−2.7% | Reduced |
| New Leaf Venture Partners, L.L.C. | 3,301,603 | $18.9M | 15.58% | 00.0% | Unchanged |
| FMR LLC | 3,245,255 | $18.5M | 0.00% | −1700.0% | Reduced |
| TPG GP A, LLC | 3,028,414 | $17.3M | 0.28% | 00.0% | Unchanged |
| Pivotal bioVenture Partners Investment Advisor LLC | 2,404,644 | $13.7M | 5.65% | 00.0% | Unchanged |
| Novo Holdings A/S | 2,270,110 | $13.0M | 0.92% | −25,897−1.1% | Reduced |
| Canaan Partners XI LLC | 2,059,712 | $11.8M | 8.46% | 00.0% | Unchanged |
| Tekla Capital Management LLC | 1,727,067 | $9.86M | 0.38% | 00.0% | Unchanged |
| Vanguard Group Inc | 995,020 | $5.68M | 0.00% | +26,318+2.7% | Added |
| BlackRock Inc. | 931,495 | $5.32M | 0.00% | −17,206−1.8% | Reduced |
| Laurion Capital Management LP | 783,391 | $4.47M | 0.20% | +1000.0% | Added |
| CHI Advisors LLC | 760,543 | $4.34M | 1.15% | +34,434+4.7% | Added |
| Sectoral Asset Management Inc | 551,937 | $3.15M | 0.61% | −67,954−11.0% | Reduced |
| Geode Capital Management, LLC | 363,760 | $2.08M | 0.00% | +64,683+21.6% | Added |
| Citadel Advisors LLC | 353,319 | $2.02M | 0.00% | −570.0% | Reduced |
| State Street Corp | 273,992 | $1.56M | 0.00% | +4,178+1.5% | Added |
| VR Adviser, LLC | 268,532 | $1.53M | 0.30% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 175,977 | $1.00M | 0.01% | 00.0% | Unchanged |
| Caas Capital Management LP | 164,328 | $938.3K | 0.30% | −97,419−37.2% | Reduced |
| Northern Trust Corp | 154,435 | $881.8K | 0.00% | +19,804+14.7% | Added |
| Charles Schwab Investment Management Inc | 54,652 | $312.1K | 0.00% | +8,175+17.6% | Added |
| Bank of New York Mellon Corp | 51,334 | $293.1K | 0.00% | −406−0.8% | Reduced |
| JPMorgan Chase & Co | 31,357 | $179.0K | 0.00% | +19,997+176.0% | Added |
| Dimensional Fund Advisors LP | 30,503 | $174.2K | 0.00% | −8,146−21.1% | Reduced |
| DekaBank Deutsche Girozentrale | 30,000 | $168.0K | 0.00% | +30,000 | New |
| Rhumbline Advisers | 23,106 | $132.0K | 0.00% | +1,140+5.2% | Added |
| Nuveen Asset Management, LLC | 22,825 | $130.0K | 0.00% | 00.0% | Unchanged |
| HarbourVest Partners LLC | 21,877 | $124.9K | 0.04% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 20,579 | $117.5K | 0.00% | −270−1.3% | Reduced |
| Bank of America Corp | 20,499 | $117.0K | 0.00% | −20,185−49.6% | Reduced |
| Mariner, LLC | 17,919 | $102.0K | 0.00% | +204+1.2% | Added |
| State of Tennessee, Treasury Department | 16,625 | $94.9K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 16,439 | $93.9K | 0.00% | +8,300+102.0% | Added |
| Utah Retirement Systems | 13,240 | $75.6K | 0.00% | 00.0% | Unchanged |
| Northeast Financial Consultants Inc | 13,066 | $74.6K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 10,365 | $59.2K | 0.00% | +22+0.2% | Added |
| Ergoteles LLC | 10,068 | $57.5K | 0.00% | +10,068 | New |
| Mercer Global Advisors Inc | 10,000 | $57.0K | 0.00% | +10,000 | New |
| Barclays PLC | 9,577 | $54.7K | 0.00% | +4,631+93.6% | Added |
| Morgan Stanley | 9,334 | $53.3K | 0.00% | +7,712+475.5% | Added |
| American International Group, Inc. | 9,081 | $51.9K | 0.00% | +370+4.2% | Added |
| UBS Group AG | 7,056 | $40.3K | 0.00% | +2,164+44.2% | Added |
| California State Teachers Retirement System | 6,995 | $39.9K | 0.00% | −356−4.8% | Reduced |
| Wells Fargo & Company | 3,878 | $22.1K | 0.00% | +3,578+1,192.7% | Added |
| Legal & General Group Plc | 2,376 | $13.6K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 2,356 | $13.0K | 0.00% | −93−3.8% | Reduced |
| Tower Research Capital LLC (TRC) | 2,054 | $12.0K | 0.00% | +992+93.4% | Added |
| STRS Ohio | 1,700 | $9.00K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 1,410 | $8.05K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 1,053 | $6.00K | 0.00% | −1,766−62.6% | Reduced |
| Nisa Investment Advisors, LLC | 18 | $0 | 0.00% | 00.0% | Unchanged |
| Resources Management Corp | 450 | – | – | +200+80.0% | Added |
| Walleye Capital LLC | 0 | $0 | 0.00% | −80,094−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −13,800−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −13,170−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −10,279−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −1,318−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −1,006−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −650−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −1−100.0% | Sold out |