Korro Bio, Inc. - KRRO
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Lynx1 Capital Management LP | History | No change | 1,538,296 | 20,274 | 2.34% | 2.75% | 1 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| NEA Management Company, LLC | History | No change | 1,297,893 | 17,106 | 1.08% | 0.84% | 2 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Venrock Adviser, LLC | History | No change | 1,009,500 | 13,305 | 0.4% | 0.43% | 3 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Atlas Venture Life Science Advisors, LLC | History | Reduced | 962,884 | 12,690 | 1.44% | 1.63% | 4 | -174,265 | -15.32% | Q2 2026 | Aug 13, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | History | Reduced | 951,783 | 12,544 | 0.02% | 0.02% | 5 | -88,271 | -8.49% | Q2 2026 | Aug 14, 2026 |
| BlackRock, Inc. | History | Added to | 817,621 | 10,776 | 0.0% | 0.0% | 6 | +357,615 | 77.74% | Q2 2026 | Aug 07, 2026 |
| Affinity Asset Advisors, LLC | History | No change | 706,904 | 9,316 | 0.42% | 0.41% | 7 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Nantahala Capital Management, LLC | History | No change | 660,036 | 8,699 | 0.29% | 0.28% | 8 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | History | Added to | 540,968 | 7,129 | 0.01% | 0.0% | 9 | +312,568 | 136.85% | Q2 2026 | Aug 14, 2026 |
| ADAR1 Capital Management, LLC | History | No change | 540,054 | 7,117 | 0.33% | 0.36% | 10 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | Added to | 454,778 | 5,993 | 0.0% | 0.0% | 11 | +143,865 | 46.27% | Q2 2026 | Aug 13, 2026 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | History | No change | 450,045 | 5,931 | 0.03% | 0.04% | 12 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| TCG Crossover Management, LLC | History | No change | 416,301 | 5,486 | 0.13% | 0.13% | 13 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| Siren, L.L.C. | History | No change | 347,718 | 4,582 | 0.09% | 0.11% | 14 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| AQR CAPITAL MANAGEMENT LLC | History | Added to | 298,974 | 3,940 | 0.0% | 0.0% | 15 | +31,219 | 11.66% | Q2 2026 | Aug 14, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Added to | 296,870 | 3,913 | 0.0% | 0.0% | 16 | +123,227 | 70.97% | Q2 2026 | Aug 12, 2026 |
| 72 Investment Holdings, LLC | History | No change | 276,831 | 3,648 | 7.3% | 6.32% | 17 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | Added to | 232,587 | 3,065 | 0.0% | 0.0% | 18 | +92,246 | 65.73% | Q2 2026 | Aug 07, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | History | Added to | 223,551 | 2,946 | 0.0% | 0.0% | 19 | +74,992 | 50.48% | Q2 2026 | Aug 13, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 178,071 | 2,346 | 0.0% | 0.0% | 20 | +12,599 | 7.61% | Q2 2026 | Aug 14, 2026 |
| JPMORGAN CHASE & CO | History | Added to | 124,726 | 1,645 | 0.0% | 0.0% | 21 | +56,226 | 82.08% | Q2 2026 | Aug 12, 2026 |
| CITADEL ADVISORS LLC | History | Reduced | 123,790 | 1,631 | 0.0% | 0.0% | 22 | -145,324 | -54.0% | Q2 2026 | Sep 02, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Added to | 118,434 | 1,560 | 0.0% | 0.0% | 23 | +54,828 | 86.2% | Q2 2026 | Aug 14, 2026 |
| GOLDMAN SACHS GROUP INC | History | Added to | 116,983 | 1,541 | 0.0% | 0.0% | 24 | +66,442 | 131.46% | Q2 2026 | Aug 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 110,524 | 1,456 | 0.0% | 0.0% | 25 | -25,703 | -18.87% | Q2 2026 | Aug 13, 2026 |
| UBS Group AG | History | Added to | 105,453 | 1,389 | 0.0% | 0.0% | 26 | +83,777 | 386.5% | Q2 2026 | Aug 13, 2026 |
| NORTHERN TRUST CORP | History | Added to | 88,089 | 1,161 | 0.0% | 0.0% | 27 | +30,387 | 52.66% | Q2 2026 | Aug 13, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | Added to | 74,901 | 987 | 0.0% | 0.0% | 28 | +33,360 | 80.31% | Q2 2026 | Aug 13, 2026 |
| EMERALD MUTUAL FUND ADVISERS TRUST | History | Added to | 63,562 | 837 | 0.03% | 0.03% | 29 | +707 | 1.12% | Q2 2026 | Aug 05, 2026 |
| F/m Investments LLC | History | Added to | 63,562 | 837 | 0.04% | 0.05% | 30 | +707 | 1.12% | Q2 2026 | Aug 05, 2026 |
| Walleye Capital LLC | History | New | 54,289 | 715 | 0.0% | — | 31 | +54,289 | New | Q2 2026 | Aug 03, 2026 |
| Quantinno Capital Management LP | History | Added to | 52,720 | 694 | 0.0% | 0.0% | 32 | +16,742 | 46.53% | Q2 2026 | Aug 13, 2026 |
| BANK OF AMERICA CORP /DE/ | History | New | 51,707 | 681 | 0.0% | — | 33 | +51,707 | New | Q2 2026 | Aug 14, 2026 |
| RAYMOND JAMES FINANCIAL INC | History | Added to | 48,920 | 644 | 0.0% | 0.0% | 34 | +6,082 | 14.2% | Q2 2026 | Aug 14, 2026 |
| XTX Topco Ltd | History | Reduced | 47,819 | 630 | 0.01% | 0.01% | 35 | -12,653 | -20.92% | Q2 2026 | Aug 14, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Reduced | 47,300 | 623 | 0.0% | 0.0% | 36 | -156,800 | -76.83% | Q2 2026 | Aug 14, 2026 |
| FMR LLC | History | Added to | 38,975 | 513 | 0.0% | 0.0% | 37 | +75 | 0.19% | Q2 2026 | Aug 13, 2026 |
| BOOTHBAY FUND MANAGEMENT, LLC | History | Reduced | 35,853 | 472 | 0.01% | 0.01% | 38 | -6,147 | -14.64% | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | History | New | 34,213 | 450 | 0.0% | — | 39 | +34,213 | New | Q2 2026 | Aug 14, 2026 |
| Jump Financial, LLC | History | New | 33,906 | 446 | 0.0% | — | 40 | +33,906 | New | Q2 2026 | Aug 13, 2026 |
| Bank of New York Mellon Corp | History | Added to | 31,730 | 418 | 0.0% | 0.0% | 41 | +10,000 | 46.02% | Q2 2026 | Aug 06, 2026 |
| AIHC Capital Management Ltd | History | No change | 30,265 | 398 | 0.38% | 0.29% | 42 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| Mariner, LLC | History | Added to | 27,908 | 367 | 0.0% | 0.0% | 43 | +2,089 | 8.09% | Q2 2026 | Aug 13, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Added to | 26,254 | 346 | 0.0% | 0.0% | 44 | +23,900 | 1015.29% | Q2 2026 | Aug 13, 2026 |
| PANAGORA ASSET MANAGEMENT INC | History | New | 25,572 | 337 | 0.0% | — | 45 | +25,572 | New | Q2 2026 | Aug 06, 2026 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | History | Added to | 24,110 | 317 | 0.0% | 0.0% | 46 | +10,716 | 80.01% | Q2 2026 | Aug 14, 2026 |
| MORGAN STANLEY | History | Reduced | 22,501 | 296 | 0.0% | 0.0% | 47 | -18,622 | -45.28% | Q2 2026 | Aug 13, 2026 |
| IEQ CAPITAL, LLC | History | Added to | 21,246 | 280 | 0.0% | 0.0% | 48 | +8,469 | 66.28% | Q2 2026 | Aug 11, 2026 |
| MARSHALL WACE, LLP | History | Reduced | 19,060 | 251 | 0.0% | 0.0% | 49 | -15,283 | -44.5% | Q2 2026 | Aug 13, 2026 |
| GUGGENHEIM CAPITAL LLC | History | Added to | 18,400 | 242 | 0.0% | 0.0% | 50 | +4,303 | 30.52% | Q2 2026 | Aug 12, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | History | New | 17,634 | 233 | 0.0% | — | 51 | +17,634 | New | Q2 2026 | Aug 14, 2026 |
| HSBC HOLDINGS PLC | History | New | 17,812 | 232 | 0.0% | — | 52 | +17,812 | New | Q2 2026 | Aug 14, 2026 |
| DEUTSCHE BANK AG\ | History | Added to | 15,948 | 210 | 0.0% | 0.0% | 53 | +5,404 | 51.25% | Q2 2026 | Aug 07, 2026 |
| Nuveen, LLC | History | New | 15,861 | 209 | 0.0% | — | 54 | +15,861 | New | Q2 2026 | Aug 11, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | Reduced | 14,480 | 189 | 0.0% | 0.0% | 55 | -27,345 | -65.38% | Q2 2026 | Aug 13, 2026 |
| ALGERT GLOBAL LLC | History | Reduced | 14,212 | 187 | 0.0% | 0.0% | 56 | -4,973 | -25.92% | Q2 2026 | Aug 13, 2026 |
| Susquehanna Portfolio Strategies, LLC | History | Reduced | 13,500 | 177 | 0.0% | 0.0% | 57 | -5,625 | -29.41% | Q2 2026 | Aug 14, 2026 |
| MERCER GLOBAL ADVISORS INC /ADV | History | New | 12,888 | 169 | 0.0% | — | 58 | +12,888 | New | Q2 2026 | Aug 19, 2026 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | History | New | 11,508 | 167 | 0.0% | — | 59 | +11,508 | New | Q2 2026 | Jul 15, 2026 |
| RHUMBLINE ADVISERS | History | Added to | 12,401 | 163 | 0.0% | 0.0% | 60 | +2,551 | 25.9% | Q2 2026 | Aug 11, 2026 |
| SIMPLEX TRADING, LLC | History | Added to | 12,275 | 161 | 0.0% | 0.0% | 61 | +11,075 | 922.92% | Q2 2026 | Aug 12, 2026 |
| Trexquant Investment LP | History | Reduced | 11,482 | 151 | 0.0% | 0.0% | 62 | -44,726 | -79.57% | Q2 2026 | Aug 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | History | New | 11,406 | 150 | 0.0% | — | 63 | +11,406 | New | Q2 2026 | Aug 11, 2026 |
| Cerity Partners LLC | History | New | 10,794 | 142 | 0.0% | — | 64 | +10,794 | New | Q2 2026 | Aug 14, 2026 |
| ALLIANCEBERNSTEIN L.P. | History | New | 12,180 | 137 | 0.0% | — | 65 | +12,180 | New | Q2 2026 | Aug 14, 2026 |
| Engineers Gate Manager LP | History | Reduced | 10,217 | 134 | 0.0% | 0.0% | 66 | -13,485 | -56.89% | Q2 2026 | Aug 14, 2026 |
| AMERICAN CENTURY COMPANIES INC | History | New | 10,153 | 133 | 0.0% | — | 67 | +10,153 | New | Q2 2026 | Aug 12, 2026 |
| WELLS FARGO & COMPANY/MN | History | Added to | 9,564 | 126 | 0.0% | 0.0% | 68 | +6,975 | 269.41% | Q2 2026 | Aug 14, 2026 |
| CWM, LLC | History | No change | 9,772 | 110 | 0.0% | 0.0% | 69 | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| Arax Advisory Partners | History | Added to | 5,595 | 73 | 0.0% | — | 70 | +5,509 | 6405.81% | Q2 2026 | Aug 10, 2026 |
| CITIGROUP INC | History | Added to | 5,169 | 68 | 0.0% | 0.0% | 71 | +4,861 | 1578.25% | Q2 2026 | Aug 03, 2026 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | History | Added to | 5,130 | 67 | 0.0% | 0.0% | 72 | +1,916 | 59.61% | Q2 2026 | Aug 14, 2026 |
| Russell Investments Group, Ltd. | History | Added to | 4,939 | 65 | 0.0% | 0.0% | 73 | +2,824 | 133.52% | Q2 2026 | Aug 06, 2026 |
| Police & Firemen's Retirement System of New Jersey | History | Added to | 4,627 | 60 | 0.0% | 0.0% | 74 | +3,254 | 237.0% | Q2 2026 | Jul 23, 2026 |
| NEW YORK STATE COMMON RETIREMENT FUND | History | No change | 3,000 | 39 | 0.0% | 0.0% | 75 | 0 | 0.0% | Q2 2026 | Jul 29, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 1,929 | 25 | 0.0% | 0.0% | 76 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| North Star Investment Management Corp. | History | No change | 1,800 | 23 | 0.0% | 0.0% | 77 | 0 | 0.0% | Q2 2026 | Jul 28, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 1,587 | 20 | 0.0% | 0.0% | 78 | -57 | -3.47% | Q2 2026 | Aug 11, 2026 |
| Legal & General Group Plc | History | Added to | 1,082 | 14 | 0.0% | 0.0% | 79 | +556 | 105.7% | Q2 2026 | Aug 14, 2026 |
| GAMMA Investing LLC | History | Added to | 861 | 11 | 0.0% | 0.0% | 81 | +124 | 16.82% | Q2 2026 | Jul 07, 2026 |
| TD Waterhouse Canada Inc. | History | No change | 808 | 11 | 0.0% | 0.0% | 80 | 0 | 0.0% | Q2 2026 | Jul 27, 2026 |
| Allworth Financial LP | History | Added to | 538 | 7 | 0.0% | 0.0% | 83 | +247 | 84.88% | Q2 2026 | Aug 11, 2026 |
| Versant Capital Management, Inc | History | Reduced | 539 | 7 | 0.0% | 0.0% | 84 | -152 | -22.0% | Q2 2026 | Jul 02, 2026 |
| Ameritas Investment Partners, Inc. | History | No change | 598 | 7 | 0.0% | 0.0% | 82 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| EverSource Wealth Advisors, LLC | History | Added to | 498 | 6 | 0.0% | 0.0% | 85 | +119 | 31.4% | Q2 2026 | Jul 24, 2026 |
| IFP Advisors, Inc | History | Added to | 418 | 5 | 0.0% | — | 87 | +373 | 828.89% | Q2 2026 | Jul 20, 2026 |
| DUNCKER STREETT & CO INC | History | No change | 437 | 5 | 0.0% | 0.0% | 86 | 0 | 0.0% | Q2 2026 | Jul 28, 2026 |
| ROYAL BANK OF CANADA | History | Added to | 352 | 4 | 0.0% | 0.0% | 88 | +248 | 238.46% | Q2 2026 | Aug 14, 2026 |
| Essential Partners LLC | History | Reduced | 180 | 2 | 0.0% | 0.0% | 93 | -1,142 | -86.38% | Q2 2026 | Aug 10, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | Reduced | 193 | 2 | 0.0% | 0.0% | 89 | -637 | -76.75% | Q2 2026 | Aug 07, 2026 |
| True Wealth Design, LLC | History | Added to | 192 | 2 | 0.0% | 0.0% | 92 | +93 | 93.94% | Q2 2026 | Jul 16, 2026 |
| Sterling Capital Management LLC | History | Reduced | 191 | 2 | 0.0% | 0.0% | 91 | -29 | -13.18% | Q2 2026 | Jul 28, 2026 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | History | No change | 225 | 2 | 0.0% | 0.0% | 90 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | History | New | 93 | 1 | 0.0% | — | 97 | +93 | New | Q2 2026 | Aug 24, 2026 |
| Farther Finance Advisors, LLC | History | Added to | 115 | 1 | 0.0% | — | 96 | +61 | 112.96% | Q2 2026 | Jul 17, 2026 |
| ROTHSCHILD INVESTMENT LLC | History | Added to | 123 | 1 | 0.0% | — | 94 | +51 | 70.83% | Q2 2026 | Aug 06, 2026 |
| OSAIC HOLDINGS, INC. | History | Reduced | 134 | 1 | 0.0% | 0.0% | 95 | -1 | -0.74% | Q2 2026 | Aug 14, 2026 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -158,504 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Quadrature Capital Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -20,356 | -100.0% | Q2 2026 | Aug 06, 2026 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -10,790 | -100.0% | Q2 2026 | Aug 14, 2026 |
| MAI Capital Management | History | Closed out | 0 | 0 | — | 0.0% | — | -606 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Advisory Services Network, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -245 | -100.0% | Q2 2026 | Aug 12, 2026 |
| Root Financial Partners, LLC | History | Closed out | 0 | 0 | — | — | — | -63 | -100.0% | Q2 2026 | Jul 29, 2026 |
| Keating Financial Advisory Services, Inc. | History | Closed out | 0 | 0 | — | — | — | -63 | -100.0% | Q2 2026 | Aug 11, 2026 |
| Wealth Preservation Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -44 | -100.0% | Q2 2026 | Aug 14, 2026 |
| Bare Financial Services, Inc | History | Closed out | 0 | 0 | — | — | — | -44 | -100.0% | Q2 2026 | Jul 27, 2026 |
| Fortitude Family Office, LLC | History | Closed out | 0 | 0 | — | — | — | -39 | -100.0% | Q2 2026 | Jul 20, 2026 |
| Timbuktu Capital Management, LLC | History | New | 38 | 0 | — | — | — | +38 | New | Q2 2026 | Aug 13, 2026 |
| Global Retirement Partners, LLC | History | New | 35 | 0 | — | — | — | +35 | New | Q2 2026 | Aug 06, 2026 |
| Wealth Enhancement Trust Services, Inc. | History | New | 33 | 0 | — | — | — | +33 | New | Q2 2026 | Jul 22, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | Reduced | 20 | 0 | — | — | — | -20 | -50.0% | Q2 2026 | Aug 10, 2026 |
| Basecamp Wealth Advisors LLC | History | Added to | 45 | 0 | — | — | — | +20 | 80.0% | Q2 2026 | Aug 14, 2026 |
| Clearstead Advisors, LLC | History | New | 19 | 0 | — | — | — | +19 | New | Q2 2026 | Aug 06, 2026 |
| FIFTH THIRD BANCORP | History | Closed out | 0 | 0 | — | — | — | -11 | -100.0% | Q2 2026 | Aug 05, 2026 |
| SJS Investment Consulting Inc. | History | Added to | 29 | 0 | — | — | — | +7 | 31.82% | Q2 2026 | Jul 22, 2026 |
| JPL Wealth Management, LLC | History | Added to | 3 | 0 | — | — | — | +1 | 50.0% | Q2 2026 | Aug 13, 2026 |
| Sunbelt Securities, Inc. | History | No change | 17 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 15, 2026 |
| SBI Securities Co., Ltd. | History | No change | 1 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Jul 22, 2026 |
| Optiver Holding B.V. | History | No change | 60 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 12, 2026 |