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 |
|---|---|---|---|---|---|
| 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 |
| Kelly Financial Services LLC | 70 | $359 | 0.00% | 00.0% | Unchanged |
| Carmichael Hill & Associates, Inc. | 257 | $1.00K | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 182 | $1.00K | 0.00% | +182 | New |
| CWM, LLC | 300 | $2.00K | 0.00% | +300 | New |
| Retirement Planning Co of New England, Inc. | 400 | $2.00K | 0.00% | +400 | New |
| Aquatic Capital Management LLC | 700 | $4.00K | 0.01% | +700 | New |
| 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 |
| Quantbot Technologies LP | 1,327 | $6.00K | 0.00% | 00.0% | Unchanged |
| Bollard Group LLC | 1,111 | $6.00K | 0.00% | 00.0% | Unchanged |
| TD Waterhouse Canada Inc. | 1,450 | $7.74K | 0.00% | +1,450 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,568 | $8.00K | 0.00% | −164−9.5% | Reduced |
| 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 |
| Ameritas Investment Partners, Inc. | 2,140 | $11.0K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 2,554 | $13.0K | 0.00% | −19,699−88.5% | Reduced |
| Tower Research Capital LLC (TRC) | 3,321 | $17.0K | 0.00% | +2,281+219.3% | Added |
| Simplex Trading, LLC | 4,559 | $23.0K | 0.00% | +4,559 | New |
| Cutler Group LP | 6,800 | $34.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 7,312 | $38.0K | 0.00% | +3,651+99.7% | Added |
| Citigroup Inc | 9,203 | $47.0K | 0.00% | +3,325+56.6% | Added |
| Captrust Financial Advisors | 9,488 | $49.0K | 0.00% | −26−0.3% | Reduced |
| SG Americas Securities, LLC | 10,137 | $52.0K | 0.00% | −11,714−53.6% | Reduced |
| 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 |
| ProShare Advisors LLC | 11,861 | $61.0K | 0.00% | +406+3.5% | Added |
| Voya Investment Management LLC | 12,409 | $64.0K | 0.00% | −505−3.9% | Reduced |
| Renaissance Technologies LLC | 13,400 | $69.0K | 0.00% | +13,400 | New |
| UBS Group AG | 14,059 | $72.0K | 0.00% | +13,146+1,439.9% | Added |
| Wells Fargo & Company | 14,998 | $77.0K | 0.00% | +14,625+3,920.9% | Added |
| Jump Financial, LLC | 15,288 | $78.0K | 0.00% | +15,288 | New |
| Northeast Financial Consultants Inc | 15,826 | $81.0K | 0.00% | −25,509−61.7% | Reduced |
| American International Group, Inc. | 17,000 | $87.0K | 0.00% | −509−2.9% | Reduced |
| California State Teachers Retirement System | 17,296 | $89.0K | 0.00% | −19,630−53.2% | Reduced |
| New York State Common Retirement Fund | 19,070 | $98.0K | 0.00% | −47−0.2% | Reduced |
| Deutsche Bank AG | 19,419 | $100.0K | 0.00% | −4,077−17.4% | 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 |
| Dimensional Fund Advisors LP | 22,039 | $113.0K | 0.00% | −1,291−5.5% | Reduced |
| Occudo Quantitative Strategies LP | 22,815 | $117.0K | 0.01% | −1,575−6.5% | Reduced |
| Virtu Financial LLC | 25,010 | $128.0K | 0.01% | +25,010 | New |
| Jaffetilchin Investment Partners, LLC | 26,372 | $135.0K | 0.01% | +222+0.8% | Added |
| 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 |
| Cresset Asset Management, LLC | 30,000 | $154.0K | 0.00% | +30,000 | New |
| Nomura Holdings Inc | 34,360 | $181.0K | 0.00% | +34,360 | New |
| Alliancebernstein L.P. | 37,100 | $190.0K | 0.00% | −2,500−6.3% | Reduced |
| Granahan Investment Management Inc | 39,346 | $202.0K | 0.00% | −3,684−8.6% | 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 |
| Rhumbline Advisers | 43,718 | $224.0K | 0.00% | −1,120−2.5% | Reduced |
| Bank of America Corp | 44,025 | $225.0K | 0.00% | −1,200−2.7% | Reduced |
| Susquehanna Fundamental Investments, LLC | 44,269 | $227.0K | 0.01% | −2,500−5.3% | Reduced |
| PDT Partners, LLC | 44,932 | $231.0K | 0.02% | −39,101−46.5% | Reduced |
| Millennium Management LLC | 56,654 | $291.0K | 0.00% | +56,654 | New |
| Laurion Capital Management LP | 69,348 | $356.0K | 0.01% | 00.0% | Unchanged |
| Voloridge Investment Management, LLC | 76,450 | $392.0K | 0.00% | −89,172−53.8% | Reduced |
| Charles Schwab Investment Management Inc | 78,977 | $406.0K | 0.00% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 83,811 | $430.0K | 0.00% | +1,231+1.5% | Added |
| Bridgeway Capital Management, LLC | 88,700 | $455.0K | 0.01% | +88,700 | New |
| Two Sigma Advisers, LP | 98,300 | $504.0K | 0.00% | −83,900−46.0% | Reduced |
| Two Sigma Investments, LP | 104,769 | $537.0K | 0.00% | −146,841−58.4% | Reduced |
| Public Employees Retirement System of Ohio | 114,539 | $588.0K | 0.00% | +13,851+13.8% | Added |
| Bank of New York Mellon Corp | 116,971 | $600.0K | 0.00% | −893−0.8% | Reduced |
| Goldman Sachs Group Inc | 139,420 | $715.0K | 0.00% | +3,728+2.7% | Added |
| Walleye Capital LLC | 146,208 | $750.0K | 0.02% | +26,167+21.8% | Added |
| Morgan Stanley | 200,378 | $1.03M | 0.00% | −328,440−62.1% | Reduced |
| Gsa Capital Partners LLP | 219,932 | $1.13M | 0.14% | +138,280+169.4% | Added |
| Amundi | 283,035 | $1.47M | 0.00% | +6,627+2.4% | Added |
| Northern Trust Corp | 286,839 | $1.47M | 0.00% | −83,521−22.6% | Reduced |
| Jacobs Levy Equity Management, Inc | 317,837 | $1.63M | 0.01% | +317,837 | New |
| Geode Capital Management, LLC | 574,890 | $2.95M | 0.00% | +38,878+7.3% | Added |
| State Street Corp | 598,590 | $3.07M | 0.00% | −59,509−9.0% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 707,071 | $3.63M | 0.23% | +59,806+9.2% | Added |
| South Dakota Investment Council | 716,726 | $3.68M | 0.06% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,167,477 | $5.99M | 0.00% | −115,689−9.0% | Reduced |
| Vanguard Group Inc | 1,457,220 | $7.47M | 0.00% | +19,667+1.4% | Added |
| Federated Hermes, Inc. | 2,801,066 | $14.4M | 0.03% | +228,553+8.9% | Added |
| BlackRock Inc. | 3,044,997 | $15.6M | 0.00% | −146,854−4.6% | Reduced |
| Wasatch Advisors Inc | 3,166,962 | $16.2M | 0.07% | −61,222−1.9% | Reduced |
| 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 |