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 2021
Institutional positions in Korro Bio, Inc. as of Dec 31, 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
- 84
- −4 vs. Q3 2021
- Shares held
- 17.7M
- −908.9K (−4.9%) vs. Q3 2021
- Total value
- $90.2M
- −$40.2M (−30.8%) vs. Q3 2021
- New holders
- 21
- 17 more added
- Sold out
- 25
- 34 more reduced
Compare with Q3 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, Q4 2021
Shares, value and share of portfolio for each institution holding Korro Bio, Inc.; share changes are against Q3 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 3,166,962 | $16.2M | 0.07% | −61,222−1.9% | Reduced |
| BlackRock Inc. | 3,044,997 | $15.6M | 0.00% | −146,854−4.6% | Reduced |
| Federated Hermes, Inc. | 2,801,066 | $14.4M | 0.03% | +228,553+8.9% | Added |
| Vanguard Group Inc | 1,457,220 | $7.47M | 0.00% | +19,667+1.4% | Added |
| JPMorgan Chase & Co | 1,167,477 | $5.99M | 0.00% | −115,689−9.0% | Reduced |
| South Dakota Investment Council | 716,726 | $3.68M | 0.06% | 00.0% | Unchanged |
| Lombard Odier Asset Management (Switzerland) SA | 707,071 | $3.63M | 0.23% | +59,806+9.2% | Added |
| State Street Corp | 598,590 | $3.07M | 0.00% | −59,509−9.0% | Reduced |
| Geode Capital Management, LLC | 574,890 | $2.95M | 0.00% | +38,878+7.3% | Added |
| Jacobs Levy Equity Management, Inc | 317,837 | $1.63M | 0.01% | +317,837 | New |
| Northern Trust Corp | 286,839 | $1.47M | 0.00% | −83,521−22.6% | Reduced |
| Amundi | 283,035 | $1.47M | 0.00% | +6,627+2.4% | Added |
| Gsa Capital Partners LLP | 219,932 | $1.13M | 0.14% | +138,280+169.4% | Added |
| Morgan Stanley | 200,378 | $1.03M | 0.00% | −328,440−62.1% | Reduced |
| Walleye Capital LLC | 146,208 | $750.0K | 0.02% | +26,167+21.8% | Added |
| Goldman Sachs Group Inc | 139,420 | $715.0K | 0.00% | +3,728+2.7% | Added |
| Bank of New York Mellon Corp | 116,971 | $600.0K | 0.00% | −893−0.8% | Reduced |
| Public Employees Retirement System of Ohio | 114,539 | $588.0K | 0.00% | +13,851+13.8% | Added |
| Two Sigma Investments, LP | 104,769 | $537.0K | 0.00% | −146,841−58.4% | Reduced |
| Two Sigma Advisers, LP | 98,300 | $504.0K | 0.00% | −83,900−46.0% | Reduced |
| Bridgeway Capital Management, LLC | 88,700 | $455.0K | 0.01% | +88,700 | New |
| Parametric Portfolio Associates LLC | 83,811 | $430.0K | 0.00% | +1,231+1.5% | Added |
| Charles Schwab Investment Management Inc | 78,977 | $406.0K | 0.00% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 76,450 | $392.0K | 0.00% | −89,172−53.8% | Reduced |
| Laurion Capital Management LP | 69,348 | $356.0K | 0.01% | 00.0% | Unchanged |
| Millennium Management LLC | 56,654 | $291.0K | 0.00% | +56,654 | New |
| PDT Partners, LLC | 44,932 | $231.0K | 0.02% | −39,101−46.5% | Reduced |
| Susquehanna Fundamental Investments, LLC | 44,269 | $227.0K | 0.01% | −2,500−5.3% | Reduced |
| Bank of America Corp | 44,025 | $225.0K | 0.00% | −1,200−2.7% | Reduced |
| Rhumbline Advisers | 43,718 | $224.0K | 0.00% | −1,120−2.5% | Reduced |
| Neuberger Berman Group LLC | 42,471 | $218.0K | 0.00% | −13,330−23.9% | Reduced |
| Anson Funds Management LP | 42,534 | $218.0K | 0.03% | +42,534 | New |
| Granahan Investment Management Inc | 39,346 | $202.0K | 0.00% | −3,684−8.6% | Reduced |
| Alliancebernstein L.P. | 37,100 | $190.0K | 0.00% | −2,500−6.3% | Reduced |
| Nomura Holdings Inc | 34,360 | $181.0K | 0.00% | +34,360 | New |
| Cresset Asset Management, LLC | 30,000 | $154.0K | 0.00% | +30,000 | New |
| Walleye Trading LLC | 27,069 | $139.0K | 0.00% | −5,108−15.9% | Reduced |
| EMC Capital Management | 27,029 | $139.0K | 0.07% | 00.0% | Unchanged |
| Jaffetilchin Investment Partners, LLC | 26,372 | $135.0K | 0.01% | +222+0.8% | Added |
| Virtu Financial LLC | 25,010 | $128.0K | 0.01% | +25,010 | New |
| Occudo Quantitative Strategies LP | 22,815 | $117.0K | 0.01% | −1,575−6.5% | Reduced |
| Dimensional Fund Advisors LP | 22,039 | $113.0K | 0.00% | −1,291−5.5% | Reduced |
| Citadel Advisors LLC | 20,652 | $106.0K | 0.00% | −49,576−70.6% | Reduced |
| Squarepoint Ops LLC | 20,611 | $106.0K | 0.00% | +20,611 | New |
| Deutsche Bank AG | 19,419 | $100.0K | 0.00% | −4,077−17.4% | Reduced |
| New York State Common Retirement Fund | 19,070 | $98.0K | 0.00% | −47−0.2% | Reduced |
| California State Teachers Retirement System | 17,296 | $89.0K | 0.00% | −19,630−53.2% | Reduced |
| American International Group, Inc. | 17,000 | $87.0K | 0.00% | −509−2.9% | Reduced |
| Northeast Financial Consultants Inc | 15,826 | $81.0K | 0.00% | −25,509−61.7% | Reduced |
| Jump Financial, LLC | 15,288 | $78.0K | 0.00% | +15,288 | New |
| Wells Fargo & Company | 14,998 | $77.0K | 0.00% | +14,625+3,920.9% | Added |
| UBS Group AG | 14,059 | $72.0K | 0.00% | +13,146+1,439.9% | Added |
| Renaissance Technologies LLC | 13,400 | $69.0K | 0.00% | +13,400 | New |
| Voya Investment Management LLC | 12,409 | $64.0K | 0.00% | −505−3.9% | Reduced |
| ProShare Advisors LLC | 11,861 | $61.0K | 0.00% | +406+3.5% | Added |
| Advisor Group Holdings, Inc. | 10,900 | $56.0K | 0.00% | −3,905−26.4% | Reduced |
| Cubic Asset Management, LLC | 11,000 | $56.0K | 0.01% | 00.0% | Unchanged |
| SG Americas Securities, LLC | 10,137 | $52.0K | 0.00% | −11,714−53.6% | Reduced |
| Captrust Financial Advisors | 9,488 | $49.0K | 0.00% | −26−0.3% | Reduced |
| Citigroup Inc | 9,203 | $47.0K | 0.00% | +3,325+56.6% | Added |
| Royal Bank of Canada | 7,312 | $38.0K | 0.00% | +3,651+99.7% | Added |
| Cutler Group LP | 6,800 | $34.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 4,559 | $23.0K | 0.00% | +4,559 | New |
| Tower Research Capital LLC (TRC) | 3,321 | $17.0K | 0.00% | +2,281+219.3% | Added |
| Legal & General Group Plc | 2,554 | $13.0K | 0.00% | −19,699−88.5% | Reduced |
| Ameritas Investment Partners, Inc. | 2,140 | $11.0K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 1,796 | $9.00K | 0.00% | +1,796 | New |
| Quadrant Capital Group LLC | 1,830 | $9.00K | 0.00% | +1,830 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,568 | $8.00K | 0.00% | −164−9.5% | Reduced |
| TD Waterhouse Canada Inc. | 1,450 | $7.74K | 0.00% | +1,450 | New |
| Quantbot Technologies LP | 1,327 | $6.00K | 0.00% | 00.0% | Unchanged |
| Bollard Group LLC | 1,111 | $6.00K | 0.00% | 00.0% | Unchanged |
| Eaton Vance Management | 1,000 | $5.00K | 0.00% | −1,000−50.0% | Reduced |
| Eagle Bay Advisors LLC | 987 | $5.00K | 0.00% | +987 | New |
| Aquatic Capital Management LLC | 700 | $4.00K | 0.01% | +700 | New |
| CWM, LLC | 300 | $2.00K | 0.00% | +300 | New |
| Retirement Planning Co of New England, Inc. | 400 | $2.00K | 0.00% | +400 | New |
| Carmichael Hill & Associates, Inc. | 257 | $1.00K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 182 | $1.00K | 0.00% | +182 | New |
| Kelly Financial Services LLC | 70 | $359 | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 63 | $0 | 0.00% | 00.0% | Unchanged |
| FMR LLC | 3 | $0 | 0.00% | +3 | New |
| Toronto Dominion Bank | 4 | $0 | 0.00% | +4 | New |
| Nuveen Asset Management, LLC | 134,282 | – | – | −11,311−7.8% | Reduced |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −222,222−100.0% | Sold out |
| Stifel Financial Corp | 0 | $0 | 0.00% | −201,500−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −52,700−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −42,176−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −40,496−100.0% | Sold out |
| Eversept Partners, LP | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −27,433−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −26,490−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −23,935−100.0% | Sold out |
| Virtus ETF Advisers LLC | 0 | $0 | 0.00% | −21,280−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −20,918−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −16,824−100.0% | Sold out |
| Quilter Plc | 0 | $0 | 0.00% | −15,750−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −15,272−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −13,571−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −10,347−100.0% | Sold out |