Korro Bio, Inc.
KRRO- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001703647
In the last 90 days, Korro Bio, Inc. insiders filed 1 open-market purchase and 8 sales; 106 institutions reported holding it in 13F filings for Q2 2026, worth $190.1M in total; no superinvestor holds it.
13F holders, Q4 2024
Institutional positions in Korro Bio, Inc. as of Dec 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
- 84
- +15 vs. Q3 2024
- Shares held
- 9.45M
- +1.02M (+12.1%) vs. Q3 2024
- Total value
- $359.6M
- +$78.0M (+27.7%) vs. Q3 2024
- New holders
- 24
- 33 more added
- Sold out
- 9
- 14 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting KRRO 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 | 106 | $190.1M |
| Q1 2026 | 99 | $144.8M |
| Q4 2025 | 83 | $60.6M |
| Q3 2025 | 92 | $465.5M |
| Q2 2025 | 71 | $114.8M |
| Q1 2025 | 75 | $169.0M |
| Q4 2024 | 84 | $359.6M |
| Q3 2024 | 71 | $285.3M |
| Q2 2024 | 64 | $285.7M |
| Q1 2024 | 49 | $618.6M |
| Q4 2023 | 40 | $301.5M |
| Q3 2023 | 42 | $2.58M |
| Q2 2023 | 41 | $1.67M |
| Q1 2023 | 43 | $2.52M |
| Q4 2022 | 50 | $28.3M |
| Q3 2022 | 55 | $14.1M |
| Q2 2022 | 58 | $13.0M |
| Q1 2022 | 86 | $33.1M |
| Q4 2021 | 84 | $90.2M |
| Q3 2021 | 88 | $130.4M |
| Q2 2021 | 91 | $193.9M |
| Q1 2021 | 115 | $186.6M |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Korro Bio, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CWM, LLC | 2 | $0 | 0.00% | −1−33.3% | Reduced |
| Advisor Group Holdings, Inc. | 1 | $38 | 0.00% | −3−75.0% | Reduced |
| Allworth Financial LP | 3 | $115 | 0.00% | +3 | New |
| MAI Capital Management | 5 | $191 | 0.00% | +5 | New |
| SBI Securities Co., Ltd. | 7 | $266 | 0.00% | +7 | New |
| GAMMA Investing LLC | 8 | $305 | 0.00% | +4+100.0% | Added |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 20 | $761 | 0.00% | 00.0% | Unchanged |
| Nisa Investment Advisors, LLC | 26 | $990 | 0.00% | +4+18.2% | Added |
| Lindbrook Capital, LLC | 31 | $1.18K | 0.00% | −14−31.1% | Reduced |
| Spire Wealth Management | 39 | $1.49K | 0.00% | +39 | New |
| Signaturefd, LLC | 41 | $1.56K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 41 | $1.56K | 0.00% | +41 | New |
| US Bancorp | 87 | $3.31K | 0.00% | +2+2.4% | Added |
| Sterling Capital Management LLC | 146 | $5.56K | 0.00% | +130+812.5% | Added |
| Amalgamated Bank | 211 | $8.00K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 278 | $10.6K | 0.00% | −156−35.9% | Reduced |
| Meeder Asset Management Inc | 357 | $13.6K | 0.00% | +357 | New |
| Duncker Streett & Co Inc | 437 | $16.6K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 550 | $20.9K | 0.00% | +550 | New |
| Ameritas Investment Partners, Inc. | 598 | $22.8K | 0.00% | 00.0% | Unchanged |
| Police & Firemen's Retirement System of New Jersey | 1,226 | $46.7K | 0.00% | +1,226 | New |
| KLP Kapitalforvaltning AS | 1,400 | $53.3K | 0.00% | +1,400 | New |
| North Star Investment Management Corp. | 1,800 | $68.5K | 0.00% | +800+80.0% | Added |
| Quest Partners LLC | 2,189 | $83.3K | 0.01% | +412+23.2% | Added |
| JPMorgan Chase & Co | 2,854 | $108.7K | 0.00% | −9,537−77.0% | Reduced |
| New York State Common Retirement Fund | 3,000 | $114.2K | 0.00% | 00.0% | Unchanged |
| Corebridge Financial, Inc. | 3,033 | $115.5K | 0.00% | −228−7.0% | Reduced |
| Wells Fargo & Company | 3,392 | $129.1K | 0.00% | +831+32.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 3,502 | $133.3K | 0.00% | +152+4.5% | Added |
| MetLife Investment Management | 3,639 | $138.5K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 4,110 | $156.5K | 0.00% | +935+29.4% | Added |
| Legal & General Group Plc | 4,325 | $164.7K | 0.00% | +3,759+664.1% | Added |
| California State Teachers Retirement System | 4,850 | $184.6K | 0.00% | +4,408+997.3% | Added |
| Citigroup Inc | 5,298 | $201.7K | 0.00% | +866+19.5% | Added |
| Trexquant Investment LP | 5,539 | $210.9K | 0.00% | +5,539 | New |
| HRT Financial LP | 5,703 | $217.0K | 0.00% | −939−14.1% | Reduced |
| Bank of Montreal | 5,710 | $217.4K | 0.00% | +5,710 | New |
| Balyasny Asset Management LLC | 5,778 | $220.0K | 0.00% | +5,778 | New |
| BNP Paribas Arbitrage, SA | 6,988 | $266.0K | 0.00% | +2,079+42.4% | Added |
| Bank of America Corp | 7,037 | $267.9K | 0.00% | +581+9.0% | Added |
| Jane Street Group, LLC | 7,604 | $289.5K | 0.00% | +7,604 | New |
| Royal Bank of Canada | 7,720 | $294.0K | 0.00% | +7,042+1,038.6% | Added |
| Rhumbline Advisers | 9,602 | $365.5K | 0.00% | +691+7.8% | Added |
| Swiss National Bank | 10,000 | $380.7K | 0.00% | +10,000 | New |
| Raymond James Financial Inc | 10,347 | $393.9K | 0.00% | +10,347 | New |
| Barclays PLC | 10,384 | $395.3K | 0.00% | +10,384 | New |
| Blair William & Co | 12,895 | $490.9K | 0.00% | +695+5.7% | Added |
| Wellington Management Group LLP | 14,553 | $554.0K | 0.00% | +1,501+11.5% | Added |
| Bank of New York Mellon Corp | 14,788 | $563.0K | 0.00% | +435+3.0% | Added |
| Charles Schwab Investment Management Inc | 17,498 | $666.1K | 0.00% | −69−0.4% | Reduced |
| Marshall Wace, LLP | 18,461 | $702.8K | 0.00% | +18,461 | New |
| Goldman Sachs Group Inc | 23,301 | $887.1K | 0.00% | +10,487+81.8% | Added |
| Nuveen Asset Management, LLC | 28,295 | $1.08M | 0.00% | +17,131+153.4% | Added |
| Morgan Stanley | 28,562 | $1.09M | 0.00% | +5,207+22.3% | Added |
| OrbiMed Advisors LLC | 32,400 | $1.23M | 0.03% | +32,400 | New |
| Rock Springs Capital Management LP | 35,719 | $1.36M | 0.05% | 00.0% | Unchanged |
| Walleye Capital LLC | 41,228 | $1.57M | 0.01% | +41,228 | New |
| ADAR1 Capital Management, LLC | 57,978 | $2.21M | 0.45% | +8,527+17.2% | Added |
| Northern Trust Corp | 60,547 | $2.31M | 0.00% | +2,717+4.7% | Added |
| Verition Fund Management LLC | 62,094 | $2.36M | 0.01% | −31,195−33.4% | Reduced |
| Ally Bridge Group (NY) LLC | 70,678 | $2.69M | 2.31% | +70,678 | New |
| UBS Group AG | 73,039 | $2.78M | 0.00% | +63,309+650.7% | Added |
| Polar Capital Holdings Plc | 75,000 | $2.86M | 0.02% | +75,000 | New |
| Franklin Resources Inc | 91,757 | $3.49M | 0.00% | +91,757 | New |
| Millennium Management LLC | 95,808 | $3.65M | 0.00% | +23,547+32.6% | Added |
| Woodline Partners LP | 102,094 | $3.89M | 0.03% | +102,094 | New |
| Schonfeld Strategic Advisors LLC | 113,065 | $4.30M | 0.03% | −29,580−20.7% | Reduced |
| Eventide Asset Management, LLC | 117,556 | $4.48M | 0.08% | −273,610−69.9% | Reduced |
| State Street Corp | 124,079 | $4.72M | 0.00% | +5,314+4.5% | Added |
| Geode Capital Management, LLC | 137,087 | $5.22M | 0.00% | −410−0.3% | Reduced |
| Tri Locum Partners LP | 144,216 | $5.49M | 1.14% | +80,202+125.3% | Added |
| 72 Investment Holdings, LLC | 276,831 | $10.5M | 21.46% | 00.0% | Unchanged |
| Qiming U.S. Ventures Management, LLC | 368,085 | $14.0M | 27.40% | 00.0% | Unchanged |
| Citadel Advisors LLC | 369,733 | $14.1M | 0.01% | −159,440−30.1% | Reduced |
| Vanguard Group Inc | 389,490 | $14.8M | 0.00% | −47,371−10.8% | Reduced |
| Siren, L.L.C. | 418,833 | $15.9M | 0.70% | 00.0% | Unchanged |
| BlackRock, Inc. | 452,449 | $17.2M | 0.00% | +2,499+0.6% | Added |
| Point72 Asset Management, L.P. | 493,997 | $18.8M | 0.05% | +49,147+11.0% | Added |
| Driehaus Capital Management LLC | 494,905 | $18.8M | 0.16% | +340,410+220.3% | Added |
| FMR LLC | 641,739 | $24.4M | 0.00% | +62,176+10.7% | Added |
| Alliancebernstein L.P. | 705,794 | $26.9M | 0.01% | +705,794 | New |
| Deep Track Capital, LP | 874,614 | $33.3M | 1.25% | +24,614+2.9% | Added |
| NEA Management Company, LLC | 1,090,793 | $41.5M | 2.34% | 00.0% | Unchanged |
| Atlas Venture Life Science Advisors, LLC | 1,137,149 | $43.3M | 5.28% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −265,826−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −41,257−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Vestcor Inc | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Brown Brothers Harriman & Co | 0 | $0 | 0.00% | −2,854−100.0% | Sold out |
| Jaffetilchin Investment Partners, LLC | 0 | $0 | 0.00% | −945−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| City State Bank | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| Ghost Tree Capital, LLC | – | – | – | – | Not filed |
| Carmichael Hill & Associates, Inc. | – | – | – | – | Not filed |