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 |
|---|---|---|---|---|---|
| Atlas Venture Life Science Advisors, LLC | 1,137,149 | $43.3M | 5.28% | 00.0% | Unchanged |
| NEA Management Company, LLC | 1,090,793 | $41.5M | 2.34% | 00.0% | Unchanged |
| Deep Track Capital, LP | 874,614 | $33.3M | 1.25% | +24,614+2.9% | Added |
| Alliancebernstein L.P. | 705,794 | $26.9M | 0.01% | +705,794 | New |
| FMR LLC | 641,739 | $24.4M | 0.00% | +62,176+10.7% | Added |
| Driehaus Capital Management LLC | 494,905 | $18.8M | 0.16% | +340,410+220.3% | Added |
| Point72 Asset Management, L.P. | 493,997 | $18.8M | 0.05% | +49,147+11.0% | Added |
| BlackRock, Inc. | 452,449 | $17.2M | 0.00% | +2,499+0.6% | Added |
| Siren, L.L.C. | 418,833 | $15.9M | 0.70% | 00.0% | Unchanged |
| Vanguard Group Inc | 389,490 | $14.8M | 0.00% | −47,371−10.8% | Reduced |
| Citadel Advisors LLC | 369,733 | $14.1M | 0.01% | −159,440−30.1% | Reduced |
| Qiming U.S. Ventures Management, LLC | 368,085 | $14.0M | 27.40% | 00.0% | Unchanged |
| 72 Investment Holdings, LLC | 276,831 | $10.5M | 21.46% | 00.0% | Unchanged |
| Tri Locum Partners LP | 144,216 | $5.49M | 1.14% | +80,202+125.3% | Added |
| Geode Capital Management, LLC | 137,087 | $5.22M | 0.00% | −410−0.3% | Reduced |
| State Street Corp | 124,079 | $4.72M | 0.00% | +5,314+4.5% | Added |
| Eventide Asset Management, LLC | 117,556 | $4.48M | 0.08% | −273,610−69.9% | Reduced |
| Schonfeld Strategic Advisors LLC | 113,065 | $4.30M | 0.03% | −29,580−20.7% | Reduced |
| Woodline Partners LP | 102,094 | $3.89M | 0.03% | +102,094 | New |
| Millennium Management LLC | 95,808 | $3.65M | 0.00% | +23,547+32.6% | Added |
| Franklin Resources Inc | 91,757 | $3.49M | 0.00% | +91,757 | New |
| Polar Capital Holdings Plc | 75,000 | $2.86M | 0.02% | +75,000 | New |
| UBS Group AG | 73,039 | $2.78M | 0.00% | +63,309+650.7% | Added |
| Ally Bridge Group (NY) LLC | 70,678 | $2.69M | 2.31% | +70,678 | New |
| Verition Fund Management LLC | 62,094 | $2.36M | 0.01% | −31,195−33.4% | Reduced |
| Northern Trust Corp | 60,547 | $2.31M | 0.00% | +2,717+4.7% | Added |
| ADAR1 Capital Management, LLC | 57,978 | $2.21M | 0.45% | +8,527+17.2% | Added |
| Walleye Capital LLC | 41,228 | $1.57M | 0.01% | +41,228 | New |
| Rock Springs Capital Management LP | 35,719 | $1.36M | 0.05% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 32,400 | $1.23M | 0.03% | +32,400 | New |
| Morgan Stanley | 28,562 | $1.09M | 0.00% | +5,207+22.3% | Added |
| Nuveen Asset Management, LLC | 28,295 | $1.08M | 0.00% | +17,131+153.4% | Added |
| Goldman Sachs Group Inc | 23,301 | $887.1K | 0.00% | +10,487+81.8% | Added |
| Marshall Wace, LLP | 18,461 | $702.8K | 0.00% | +18,461 | New |
| Charles Schwab Investment Management Inc | 17,498 | $666.1K | 0.00% | −69−0.4% | Reduced |
| Bank of New York Mellon Corp | 14,788 | $563.0K | 0.00% | +435+3.0% | Added |
| Wellington Management Group LLP | 14,553 | $554.0K | 0.00% | +1,501+11.5% | Added |
| Blair William & Co | 12,895 | $490.9K | 0.00% | +695+5.7% | Added |
| Barclays PLC | 10,384 | $395.3K | 0.00% | +10,384 | New |
| Raymond James Financial Inc | 10,347 | $393.9K | 0.00% | +10,347 | New |
| Swiss National Bank | 10,000 | $380.7K | 0.00% | +10,000 | New |
| Rhumbline Advisers | 9,602 | $365.5K | 0.00% | +691+7.8% | Added |
| Royal Bank of Canada | 7,720 | $294.0K | 0.00% | +7,042+1,038.6% | Added |
| Jane Street Group, LLC | 7,604 | $289.5K | 0.00% | +7,604 | New |
| Bank of America Corp | 7,037 | $267.9K | 0.00% | +581+9.0% | Added |
| BNP Paribas Arbitrage, SA | 6,988 | $266.0K | 0.00% | +2,079+42.4% | Added |
| Balyasny Asset Management LLC | 5,778 | $220.0K | 0.00% | +5,778 | New |
| Bank of Montreal | 5,710 | $217.4K | 0.00% | +5,710 | New |
| HRT Financial LP | 5,703 | $217.0K | 0.00% | −939−14.1% | Reduced |
| Trexquant Investment LP | 5,539 | $210.9K | 0.00% | +5,539 | New |
| Citigroup Inc | 5,298 | $201.7K | 0.00% | +866+19.5% | Added |
| California State Teachers Retirement System | 4,850 | $184.6K | 0.00% | +4,408+997.3% | Added |
| Legal & General Group Plc | 4,325 | $164.7K | 0.00% | +3,759+664.1% | Added |
| Deutsche Bank AG | 4,110 | $156.5K | 0.00% | +935+29.4% | Added |
| MetLife Investment Management | 3,639 | $138.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 3,502 | $133.3K | 0.00% | +152+4.5% | Added |
| Wells Fargo & Company | 3,392 | $129.1K | 0.00% | +831+32.4% | Added |
| Corebridge Financial, Inc. | 3,033 | $115.5K | 0.00% | −228−7.0% | Reduced |
| New York State Common Retirement Fund | 3,000 | $114.2K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 2,854 | $108.7K | 0.00% | −9,537−77.0% | Reduced |
| Quest Partners LLC | 2,189 | $83.3K | 0.01% | +412+23.2% | Added |
| North Star Investment Management Corp. | 1,800 | $68.5K | 0.00% | +800+80.0% | Added |
| KLP Kapitalforvaltning AS | 1,400 | $53.3K | 0.00% | +1,400 | New |
| Police & Firemen's Retirement System of New Jersey | 1,226 | $46.7K | 0.00% | +1,226 | New |
| Ameritas Investment Partners, Inc. | 598 | $22.8K | 0.00% | 00.0% | Unchanged |
| Steward Partners Investment Advisory, LLC | 550 | $20.9K | 0.00% | +550 | New |
| Duncker Streett & Co Inc | 437 | $16.6K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 357 | $13.6K | 0.00% | +357 | New |
| Tower Research Capital LLC (TRC) | 278 | $10.6K | 0.00% | −156−35.9% | Reduced |
| Amalgamated Bank | 211 | $8.00K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 146 | $5.56K | 0.00% | +130+812.5% | Added |
| US Bancorp | 87 | $3.31K | 0.00% | +2+2.4% | Added |
| Signaturefd, LLC | 41 | $1.56K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 41 | $1.56K | 0.00% | +41 | New |
| Spire Wealth Management | 39 | $1.49K | 0.00% | +39 | New |
| Lindbrook Capital, LLC | 31 | $1.18K | 0.00% | −14−31.1% | Reduced |
| Nisa Investment Advisors, LLC | 26 | $990 | 0.00% | +4+18.2% | Added |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 20 | $761 | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 8 | $305 | 0.00% | +4+100.0% | Added |
| SBI Securities Co., Ltd. | 7 | $266 | 0.00% | +7 | New |
| MAI Capital Management | 5 | $191 | 0.00% | +5 | New |
| Allworth Financial LP | 3 | $115 | 0.00% | +3 | New |
| Advisor Group Holdings, Inc. | 1 | $38 | 0.00% | −3−75.0% | Reduced |
| CWM, LLC | 2 | $0 | 0.00% | −1−33.3% | Reduced |
| 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 |