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 2024
Institutional positions in Rallybio Corp as of Mar 31, 2024. 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
- 62
- +8 vs. Q4 2023
- Shares held
- 30.2M
- −1.55M (−4.9%) vs. Q4 2023
- Total value
- $55.9M
- −$20.0M (−26.4%) vs. Q4 2023
- New holders
- 13
- 15 more added
- Sold out
- 5
- 17 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding Rallybio Corp; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Viking Global Investors LPSuperinvestorViking Global Investors | 4,194,777 | $7.76M | 0.03% | 00.0% | Unchanged |
| 5AM Venture Management, LLC | 3,630,724 | $6.72M | 1.50% | 00.0% | Unchanged |
| New Leaf Venture Partners, L.L.C. | 3,301,603 | $6.11M | 5.35% | 00.0% | Unchanged |
| TPG GP A, LLC | 3,028,414 | $5.60M | 0.11% | 00.0% | Unchanged |
| Pivotal bioVenture Partners Investment Advisor LLC | 2,404,644 | $4.45M | 2.86% | 00.0% | Unchanged |
| FMR LLC | 2,279,618 | $4.22M | 0.00% | −255,953−10.1% | Reduced |
| Canaan Partners XI LLC | 2,059,712 | $3.81M | 4.20% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 1,727,067 | $3.20M | 0.01% | 00.0% | Unchanged |
| BlackRock Inc. | 1,675,966 | $3.10M | 0.00% | −79,628−4.5% | Reduced |
| Vanguard Group Inc | 1,076,771 | $1.99M | 0.00% | +12,801+1.2% | Added |
| Laurion Capital Management LP | 783,391 | $1.45M | 0.04% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 519,648 | $961.4K | 0.00% | +14,387+2.8% | Added |
| State Street Corp | 513,718 | $950.4K | 0.00% | +5,148+1.0% | Added |
| Renaissance Technologies LLC | 488,100 | $903.0K | 0.00% | +488,100 | New |
| Mariner, LLC | 405,631 | $750.4K | 0.00% | +976+0.2% | Added |
| Citadel Advisors LLC | 399,662 | $739.4K | 0.00% | +81,200+25.5% | Added |
| Blue Owl Capital Holdings LP | 350,240 | $647.9K | 0.13% | 00.0% | Unchanged |
| Northern Trust Corp | 244,765 | $452.8K | 0.00% | −5,023−2.0% | Reduced |
| Millennium Management LLC | 196,779 | $364.0K | 0.00% | +161,208+453.2% | Added |
| Bridgeway Capital Management, LLC | 96,200 | $178.0K | 0.00% | −32,300−25.1% | Reduced |
| Bank of New York Mellon Corp | 90,316 | $167.1K | 0.00% | +380.0% | Added |
| Charles Schwab Investment Management Inc | 77,018 | $142.5K | 0.00% | 00.0% | Unchanged |
| Morgan Stanley | 76,382 | $141.3K | 0.00% | −22,737−22.9% | Reduced |
| Nuveen Asset Management, LLC | 63,849 | $118.1K | 0.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 39,954 | $73.9K | 0.00% | +1,195+3.1% | Added |
| Barclays PLC | 37,020 | $68.5K | 0.00% | −20,459−35.6% | Reduced |
| Squarepoint Ops LLC | 36,425 | $67.4K | 0.00% | +22,389+159.5% | Added |
| Acadian Asset Management LLC | 31,294 | $57.0K | 0.00% | +31,294 | New |
| UBS Group AG | 30,673 | $56.7K | 0.00% | +4,941+19.2% | Added |
| Marshall Wace, LLP | 29,032 | $53.7K | 0.00% | +14,007+93.2% | Added |
| Wells Fargo & Company | 26,015 | $48.1K | 0.00% | +16,386+170.2% | Added |
| Bank of America Corp | 23,919 | $44.3K | 0.00% | −37,307−60.9% | Reduced |
| XTX Topco Ltd | 22,791 | $42.2K | 0.01% | +22,791 | New |
| Northeast Financial Consultants Inc | 22,088 | $40.9K | 0.00% | +22,088 | New |
| HarbourVest Partners LLC | 21,877 | $40.5K | 0.02% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 21,203 | $39.2K | 0.00% | −8,440−28.5% | Reduced |
| ADAR1 Capital Management, LLC | 17,942 | $33.2K | 0.01% | +17,942 | New |
| American International Group, Inc. | 15,067 | $27.9K | 0.00% | −130−0.9% | Reduced |
| JPMorgan Chase & Co | 14,592 | $27.0K | 0.00% | −5,380−26.9% | Reduced |
| Susquehanna International Group, LLP | 14,588 | $27.0K | 0.00% | +3,171+27.8% | Added |
| Goldman Sachs Group Inc | 13,243 | $24.5K | 0.00% | −5,775−30.4% | Reduced |
| Utah Retirement Systems | 13,240 | $24.5K | 0.00% | 00.0% | Unchanged |
| Capstone Investment Advisors, LLC | 10,900 | $20.2K | 0.00% | +900+9.0% | Added |
| SG Americas Securities, LLC | 10,565 | $20.0K | 0.00% | −6,248−37.2% | Reduced |
| New York State Common Retirement Fund | 10,467 | $19.4K | 0.00% | 00.0% | Unchanged |
| Mercer Global Advisors Inc | 10,000 | $19.0K | 0.00% | +10,000 | New |
| Captrust Financial Advisors | 10,031 | $18.6K | 0.00% | +10,031 | New |
| Tower Research Capital LLC (TRC) | 8,119 | $15.0K | 0.00% | +4,410+118.9% | Added |
| Citigroup Inc | 6,348 | $11.7K | 0.00% | −7,283−53.4% | Reduced |
| Russell Investments Group, Ltd. | 4,045 | $7.48K | 0.00% | +4,045 | New |
| California State Teachers Retirement System | 3,472 | $6.42K | 0.00% | −1,560−31.0% | Reduced |
| Legal & General Group Plc | 2,946 | $5.46K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,525 | $4.67K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 1,738 | $3.21K | 0.00% | +1,738 | New |
| STRS Ohio | 1,600 | $2.00K | 0.00% | −100−5.9% | Reduced |
| Royal Bank of Canada | 699 | $1.00K | 0.00% | −8,422−92.3% | Reduced |
| Amalgamated Bank | 559 | $1.00K | 0.00% | −1,636−74.5% | Reduced |
| Nisa Investment Advisors, LLC | 10 | $19 | 0.00% | +10 | New |
| Farther Finance Advisors, LLC | 9 | $16 | 0.00% | +9 | New |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 5 | $9 | 0.00% | +5 | New |
| Resources Management Corp | 250 | $0 | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 203 | $0 | 0.00% | +203 | New |
| Novo Holdings A/S | 0 | $0 | 0.00% | −1,767,861−100.0% | Sold out |
| Anson Funds Management LP | 0 | $0 | 0.00% | −183,970−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −24,719−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −14,145−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −13,254−100.0% | Sold out |