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, Q3 2021
Institutional positions in Korro Bio, Inc. as of Sep 30, 2021. 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
- 88
- −3 vs. Q2 2021
- Shares held
- 18.6M
- −937.3K (−4.8%) vs. Q2 2021
- Total value
- $130.4M
- −$63.5M (−32.8%) vs. Q2 2021
- New holders
- 9
- 25 more added
- Sold out
- 12
- 34 more reduced
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Korro Bio, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 3,228,184 | $22.8M | 0.09% | −104,125−3.1% | Reduced |
| BlackRock Inc. | 3,191,851 | $22.5M | 0.00% | +121,095+3.9% | Added |
| Federated Hermes, Inc. | 2,572,513 | $18.2M | 0.03% | +525,113+25.6% | Added |
| Vanguard Group Inc | 1,437,553 | $10.1M | 0.00% | +9,009+0.6% | Added |
| JPMorgan Chase & Co | 1,283,166 | $9.06M | 0.00% | −161,045−11.2% | Reduced |
| South Dakota Investment Council | 716,726 | $5.06M | 0.09% | +65,200+10.0% | Added |
| State Street Corp | 658,099 | $4.65M | 0.00% | +47,753+7.8% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 647,265 | $4.57M | 0.28% | +50,860+8.5% | Added |
| Geode Capital Management, LLC | 536,012 | $3.78M | 0.00% | −10,444−1.9% | Reduced |
| Morgan Stanley | 528,818 | $3.73M | 0.00% | −185,473−26.0% | Reduced |
| Northern Trust Corp | 370,360 | $2.61M | 0.00% | +48,676+15.1% | Added |
| Amundi | 276,408 | $1.95M | 0.00% | −499,680−64.4% | Reduced |
| Two Sigma Investments, LP | 251,610 | $1.78M | 0.00% | −9,777−3.7% | Reduced |
| Perceptive Advisors LLC | 222,222 | $1.57M | 0.02% | 00.0% | Unchanged |
| Stifel Financial Corp | 201,500 | $1.42M | 0.00% | −8,000−3.8% | Reduced |
| Two Sigma Advisers, LP | 182,200 | $1.29M | 0.00% | +18,100+11.0% | Added |
| Voloridge Investment Management, LLC | 165,622 | $1.17M | 0.01% | −81,705−33.0% | Reduced |
| Goldman Sachs Group Inc | 135,692 | $958.0K | 0.00% | +51,627+61.4% | Added |
| Walleye Capital LLC | 120,041 | $847.0K | 0.03% | +52,862+78.7% | Added |
| Bank of New York Mellon Corp | 117,864 | $832.0K | 0.00% | +8,408+7.7% | Added |
| Public Employees Retirement System of Ohio | 100,688 | $711.0K | 0.00% | 00.0% | Unchanged |
| PDT Partners, LLC | 84,033 | $593.0K | 0.04% | −92,049−52.3% | Reduced |
| Parametric Portfolio Associates LLC | 82,580 | $583.0K | 0.00% | +36,441+79.0% | Added |
| Gsa Capital Partners LLP | 81,652 | $576.0K | 0.06% | +81,652 | New |
| Charles Schwab Investment Management Inc | 78,977 | $558.0K | 0.00% | −122,827−60.9% | Reduced |
| Citadel Advisors LLC | 70,228 | $496.0K | 0.00% | −37,526−34.8% | Reduced |
| Laurion Capital Management LP | 69,348 | $490.0K | 0.01% | −29,300−29.7% | Reduced |
| Neuberger Berman Group LLC | 55,801 | $394.0K | 0.00% | −1,700−3.0% | Reduced |
| Swiss National Bank | 52,700 | $372.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna Fundamental Investments, LLC | 46,769 | $330.0K | 0.01% | +46,769 | New |
| Bank of America Corp | 45,225 | $319.0K | 0.00% | +12,696+39.0% | Added |
| Rhumbline Advisers | 44,838 | $317.0K | 0.00% | +1,077+2.5% | Added |
| Granahan Investment Management Inc | 43,030 | $304.0K | 0.01% | −84,449−66.2% | Reduced |
| Alps Advisors Inc | 42,176 | $298.0K | 0.00% | −2,892−6.4% | Reduced |
| Northeast Financial Consultants Inc | 41,335 | $292.0K | 0.02% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 40,496 | $285.9K | 0.00% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 39,600 | $280.0K | 0.00% | 00.0% | Unchanged |
| California State Teachers Retirement System | 36,926 | $261.0K | 0.00% | −7,226−16.4% | Reduced |
| Walleye Trading LLC | 32,177 | $227.0K | 0.01% | +24,948+345.1% | Added |
| Eversept Partners, LP | 30,000 | $211.8K | 0.02% | +30,000 | New |
| HRT Financial LP | 27,433 | $193.0K | 0.00% | +27,433 | New |
| ExodusPoint Capital Management, LP | 26,490 | $187.0K | 0.00% | +26,490 | New |
| Jaffetilchin Investment Partners, LLC | 26,150 | $185.0K | 0.02% | −18,280−41.1% | Reduced |
| Occudo Quantitative Strategies LP | 24,390 | $172.0K | 0.02% | −4,657−16.0% | Reduced |
| EMC Capital Management | 27,029 | $170.0K | 0.09% | +27,029 | New |
| Price T Rowe Associates Inc | 23,935 | $169.0K | 0.00% | +1,300+5.7% | Added |
| Deutsche Bank AG | 23,496 | $166.0K | 0.00% | −1,765−7.0% | Reduced |
| Dimensional Fund Advisors LP | 23,330 | $165.0K | 0.00% | −13,621−36.9% | Reduced |
| Legal & General Group Plc | 22,253 | $157.0K | 0.00% | +4,728+27.0% | Added |
| SG Americas Securities, LLC | 21,851 | $154.0K | 0.00% | +21,851 | New |
| Virtus ETF Advisers LLC | 21,280 | $150.0K | 0.07% | −1,111−5.0% | Reduced |
| Winton Group Ltd | 20,918 | $148.0K | 0.01% | +6,657+46.7% | Added |
| New York State Common Retirement Fund | 19,117 | $135.0K | 0.00% | −8,678−31.2% | Reduced |
| American International Group, Inc. | 17,509 | $124.0K | 0.00% | −416−2.3% | Reduced |
| Credit Suisse AG | 16,824 | $118.0K | 0.00% | +499+3.1% | Added |
| Quilter Plc | 15,750 | $111.0K | 0.00% | 00.0% | Unchanged |
| Cubist Systematic Strategies, LLC | 15,272 | $108.0K | 0.00% | −54,419−78.1% | Reduced |
| Advisor Group Holdings, Inc. | 14,805 | $104.0K | 0.00% | −46,931−76.0% | Reduced |
| Invesco Ltd. | 13,571 | $96.0K | 0.00% | +1,369+11.2% | Added |
| Voya Investment Management LLC | 12,914 | $91.0K | 0.00% | 00.0% | Unchanged |
| ProShare Advisors LLC | 11,455 | $81.0K | 0.00% | −2,992−20.7% | Reduced |
| Cubic Asset Management, LLC | 11,000 | $78.0K | 0.02% | 00.0% | Unchanged |
| Franklin Resources Inc | 10,347 | $73.0K | 0.00% | +10,347 | New |
| Centaurus Financial, Inc. | 10,030 | $71.0K | 0.01% | 00.0% | Unchanged |
| Captrust Financial Advisors | 9,514 | $67.0K | 0.00% | +26+0.3% | Added |
| Macquarie Group Ltd | 7,544 | $53.0K | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 6,800 | $48.0K | 0.00% | +598+9.6% | Added |
| Citigroup Inc | 5,878 | $41.0K | 0.00% | −7,094−54.7% | Reduced |
| Royal Bank of Canada | 3,661 | $26.0K | 0.00% | +720+24.5% | Added |
| Edmond de Rothschild Holding S.A. | 2,980 | $21.0K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,140 | $15.0K | 0.00% | 00.0% | Unchanged |
| Eaton Vance Management | 2,000 | $14.0K | 0.00% | 00.0% | Unchanged |
| Great West Life Assurance Co | 1,717 | $12.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,732 | $12.0K | 0.00% | −1−0.1% | Reduced |
| Quantbot Technologies LP | 1,327 | $9.00K | 0.00% | −1,873−58.5% | Reduced |
| Tower Research Capital LLC (TRC) | 1,040 | $8.00K | 0.00% | −1,281−55.2% | Reduced |
| Bollard Group LLC | 1,111 | $8.00K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 913 | $7.00K | 0.00% | −908−49.9% | Reduced |
| Penserra Capital Management LLC | 785 | $5.00K | 0.00% | +5+0.6% | Added |
| Hartford Financial Management Inc. | 500 | $4.00K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 373 | $2.00K | 0.00% | −15,342−97.6% | Reduced |
| US Bancorp | 219 | $2.00K | 0.00% | −1,886−89.6% | Reduced |
| Carmichael Hill & Associates, Inc. | 257 | $2.00K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 88 | $1.00K | 0.00% | +88 | New |
| Kelly Financial Services LLC | 70 | $494 | 0.00% | −627−90.0% | Reduced |
| Global Financial Private Client, LLC | 40 | $282 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 63 | $0 | 0.00% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 145,593 | – | – | +7,637+5.5% | Added |
| Sphera Funds Management Ltd. | 0 | $0 | 0.00% | −275,160−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −188,802−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −69,879−100.0% | Sold out |
| Baker Bros. Advisors LP | 0 | $0 | 0.00% | −55,555−100.0% | Sold out |
| TRB Advisors LP | 0 | $0 | 0.00% | −47,285−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −19,773−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −10,900−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −10,450−100.0% | Sold out |
| Russell Investments Group, Ltd. | 0 | $0 | 0.00% | −7,402−100.0% | Sold out |
| Parisi Gray Wealth Management | 0 | $0 | 0.00% | −702−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −250−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |