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, Q2 2021
Institutional positions in Korro Bio, Inc. as of Jun 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
- 91
- −23 vs. Q1 2021
- Shares held
- 19.6M
- +13.8K (+0.1%) vs. Q1 2021
- Total value
- $193.9M
- +$9.15M (+5.0%) vs. Q1 2021
- New holders
- 12
- 42 more added
- Sold out
- 35
- 26 more reduced
1 institution that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2021
Shares, value and share of portfolio for each institution holding Korro Bio, Inc.; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Wasatch Advisors Inc | 3,332,309 | $33.2M | 0.13% | +486,108+17.1% | Added |
| BlackRock Inc. | 3,070,756 | $30.6M | 0.00% | +501,654+19.5% | Added |
| Federated Hermes, Inc. | 2,047,400 | $20.4M | 0.04% | −1,164,984−36.3% | Reduced |
| JPMorgan Chase & Co | 1,444,211 | $14.4M | 0.00% | +1,427,828+8,715.3% | Added |
| Vanguard Group Inc | 1,428,544 | $14.2M | 0.00% | −95,838−6.3% | Reduced |
| Amundi | 776,088 | $7.73M | 0.01% | +776,088 | New |
| Morgan Stanley | 714,291 | $7.12M | 0.00% | +700,762+5,179.7% | Added |
| South Dakota Investment Council | 651,526 | $6.49M | 0.11% | +397,815+156.8% | Added |
| State Street Corp | 610,346 | $6.08M | 0.00% | −775,926−56.0% | Reduced |
| Lombard Odier Asset Management (Switzerland) SA | 596,405 | $5.94M | 0.30% | +331,816+125.4% | Added |
| Geode Capital Management, LLC | 546,456 | $5.44M | 0.00% | +69,455+14.6% | Added |
| Northern Trust Corp | 321,684 | $3.21M | 0.00% | −40,103−11.1% | Reduced |
| Sphera Funds Management Ltd. | 275,160 | $2.74M | 0.26% | +275,160 | New |
| Two Sigma Investments, LP | 261,387 | $2.60M | 0.01% | +241,887+1,240.4% | Added |
| Voloridge Investment Management, LLC | 247,327 | $2.46M | 0.02% | −461,908−65.1% | Reduced |
| Perceptive Advisors LLC | 222,222 | $2.21M | 0.03% | −1,891,439−89.5% | Reduced |
| Stifel Financial Corp | 209,500 | $2.09M | 0.00% | +5,000+2.4% | Added |
| Charles Schwab Investment Management Inc | 201,804 | $2.01M | 0.00% | +3,067+1.5% | Added |
| Millennium Management LLC | 188,802 | $1.88M | 0.00% | +166,428+743.8% | Added |
| PDT Partners, LLC | 176,082 | $1.75M | 0.12% | +131,342+293.6% | Added |
| Two Sigma Advisers, LP | 164,100 | $1.63M | 0.00% | +164,100 | New |
| Granahan Investment Management Inc | 127,479 | $1.27M | 0.02% | +25,162+24.6% | Added |
| Bank of New York Mellon Corp | 109,456 | $1.09M | 0.00% | +8,545+8.5% | Added |
| Citadel Advisors LLC | 107,754 | $1.07M | 0.00% | −14,754−12.0% | Reduced |
| Public Employees Retirement System of Ohio | 100,688 | $1.00M | 0.00% | 00.0% | Unchanged |
| Laurion Capital Management LP | 98,648 | $983.0K | 0.02% | −46,719−32.1% | Reduced |
| Jaffetilchin Investment Partners, LLC | 44,430 | $954.0K | 0.07% | +24,400+121.8% | Added |
| Goldman Sachs Group Inc | 84,065 | $837.0K | 0.00% | +57,966+222.1% | Added |
| Ikarian Capital, LLC | 69,879 | $696.0K | 0.12% | +13,400+23.7% | Added |
| Cubist Systematic Strategies, LLC | 69,691 | $694.0K | 0.01% | −8,524−10.9% | Reduced |
| Walleye Capital LLC | 67,179 | $669.0K | 0.02% | −621−0.9% | Reduced |
| Advisor Group Holdings, Inc. | 61,736 | $615.0K | 0.00% | +38,824+169.4% | Added |
| Neuberger Berman Group LLC | 57,501 | $576.0K | 0.00% | +1,793+3.2% | Added |
| Baker Bros. Advisors LP | 55,555 | $553.0K | 0.00% | 00.0% | Unchanged |
| Swiss National Bank | 52,700 | $525.0K | 0.00% | −5,100−8.8% | Reduced |
| TRB Advisors LP | 47,285 | $471.0K | 0.11% | 00.0% | Unchanged |
| Parametric Portfolio Associates LLC | 46,139 | $460.0K | 0.00% | +35,147+319.8% | Added |
| Alps Advisors Inc | 45,068 | $449.0K | 0.00% | −15,965−26.2% | Reduced |
| California State Teachers Retirement System | 44,152 | $440.0K | 0.00% | +6,281+16.6% | Added |
| Rhumbline Advisers | 43,761 | $436.0K | 0.00% | +13,056+42.5% | Added |
| Northeast Financial Consultants Inc | 41,335 | $412.0K | 0.03% | +5,826+16.4% | Added |
| UBS Asset Management Americas Inc | 40,496 | $403.3K | 0.00% | +24,396+151.5% | Added |
| Alliancebernstein L.P. | 39,600 | $394.0K | 0.00% | +4,800+13.8% | Added |
| Dimensional Fund Advisors LP | 36,951 | $368.0K | 0.00% | −19,622−34.7% | Reduced |
| Bank of America Corp | 32,529 | $324.0K | 0.00% | +3,201+10.9% | Added |
| Occudo Quantitative Strategies LP | 29,047 | $289.0K | 0.04% | +29,047 | New |
| New York State Common Retirement Fund | 27,795 | $277.0K | 0.00% | −5,905−17.5% | Reduced |
| Deutsche Bank AG | 25,261 | $252.0K | 0.00% | +6,596+35.3% | Added |
| Price T Rowe Associates Inc | 22,635 | $225.0K | 0.00% | +7,764+52.2% | Added |
| Virtus ETF Advisers LLC | 22,391 | $223.0K | 0.09% | +14,207+173.6% | Added |
| Manufacturers Life Insurance Company, The | 19,773 | $197.0K | 0.00% | +5,542+38.9% | Added |
| American International Group, Inc. | 17,925 | $179.0K | 0.00% | +3,288+22.5% | Added |
| Legal & General Group Plc | 17,525 | $174.0K | 0.00% | +13,278+312.6% | Added |
| Credit Suisse AG | 16,325 | $162.0K | 0.00% | −4,633−22.1% | Reduced |
| Quilter Plc | 15,750 | $157.0K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 15,715 | $156.0K | 0.00% | −6,806−30.2% | Reduced |
| ProShare Advisors LLC | 14,447 | $144.0K | 0.00% | +3,053+26.8% | Added |
| Winton Group Ltd | 14,261 | $142.0K | 0.01% | +14,261 | New |
| Citigroup Inc | 12,972 | $130.0K | 0.00% | −64,735−83.3% | Reduced |
| Voya Investment Management LLC | 12,914 | $129.0K | 0.00% | +1,538+13.5% | Added |
| Invesco Ltd. | 12,202 | $121.0K | 0.00% | +12,202 | New |
| Cubic Asset Management, LLC | 11,000 | $110.0K | 0.03% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 10,900 | $109.0K | 0.00% | −73,017−87.0% | Reduced |
| Victory Capital Management Inc | 10,450 | $104.0K | 0.00% | −553−5.0% | Reduced |
| Centaurus Financial, Inc. | 10,030 | $100.0K | 0.01% | +10,030 | New |
| Captrust Financial Advisors | 9,488 | $95.0K | 0.00% | −48,800−83.7% | Reduced |
| Macquarie Group Ltd | 7,544 | $75.0K | 0.00% | +6,851+988.6% | Added |
| Russell Investments Group, Ltd. | 7,402 | $73.0K | 0.00% | −32,382−81.4% | Reduced |
| Walleye Trading LLC | 7,229 | $72.0K | 0.00% | −18,511−71.9% | Reduced |
| Cutler Group LP | 6,202 | $61.0K | 0.00% | −16,618−72.8% | Reduced |
| Quantbot Technologies LP | 3,200 | $31.0K | 0.00% | +3,200 | New |
| Edmond de Rothschild Holding S.A. | 2,980 | $30.0K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 2,941 | $29.0K | 0.00% | +434+17.3% | Added |
| Tower Research Capital LLC (TRC) | 2,321 | $23.0K | 0.00% | +545+30.7% | Added |
| Ameritas Investment Partners, Inc. | 2,140 | $21.0K | 0.00% | 00.0% | Unchanged |
| US Bancorp | 2,105 | $21.0K | 0.00% | +2,105 | New |
| Eaton Vance Management | 2,000 | $20.0K | 0.00% | +1,000+100.0% | Added |
| UBS Group AG | 1,821 | $18.0K | 0.00% | −29,240−94.1% | Reduced |
| Great West Life Assurance Co | 1,717 | $17.0K | 0.00% | 00.0% | Unchanged |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 1,733 | $17.0K | 0.00% | +79+4.8% | Added |
| Bollard Group LLC | 1,111 | $11.0K | 0.00% | 00.0% | Unchanged |
| Penserra Capital Management LLC | 780 | $7.00K | 0.00% | +20+2.6% | Added |
| Parisi Gray Wealth Management | 702 | $7.00K | 0.00% | +702 | New |
| Hartford Financial Management Inc. | 500 | $5.00K | 0.00% | +500 | New |
| Carmichael Hill & Associates, Inc. | 257 | $3.00K | 0.00% | 00.0% | Unchanged |
| FNY Investment Advisers, LLC | 250 | $2.00K | 0.00% | −1,150−82.1% | Reduced |
| Advisory Services Network, LLC | 100 | $1.00K | 0.00% | −10,150−99.0% | Reduced |
| Daiwa Securities Group Inc. | 63 | $1.00K | 0.00% | 00.0% | Unchanged |
| Global Financial Private Client, LLC | 40 | $370 | 0.00% | +40 | New |
| Kelly Financial Services LLC | 697 | $70 | 0.00% | +627+895.7% | Added |
| Nuveen Asset Management, LLC | 137,956 | – | – | +38,193+38.3% | Added |
| Compagnie Lombard Odier SCmA | 0 | $0 | 0.00% | −263,249−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −129,746−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −125,114−100.0% | Sold out |
| Pura Vida Investments, LLC | 0 | $0 | 0.00% | −100,000−100.0% | Sold out |
| Handelsbanken Fonder AB | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Rafferty Asset Management, LLC | 0 | $0 | 0.00% | −61,934−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −59,900−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −52,669−100.0% | Sold out |
| California Public Employees Retirement System | 0 | $0 | 0.00% | −51,500−100.0% | Sold out |