Korro BioKRRO
13F holders, Q2 2026 (June 30)106holders +7
18new positions
11sold out
5famous investors
$13.18avg. 13F price*
At the end of Q2 2026, 106 institutions reported holding Korro Bio Inc. (KRRO) in their 13F filings, up 7 from Q1 2026. 18 opened new positions and 11 sold out. The largest holders were Lynx1 Capital Management LP ($20.3M), NEA Management Company, LLC ($17.1M) and Venrock Adviser, LLC ($13.3M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Korro Bio Inc.
- CUSIP
- 500946108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 18 | $4.2M |
| Exits | 11 | $1.7M |
All 13F filers, Q1 2026 → Q2 2026: 2,219,518 shares bought and 587,101 shares sold, net +1,632,417 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 106 holders
| Lynx1 Capital Management LP | 2.34% | No change | 1,538,296 | $20.3M |
| NEA Management Company, LLC | 1.08% | No change | 1,297,893 | $17.1M |
| Venrock Adviser, LLC | 0.40% | No change | 1,009,500 | $13.3M |
| Atlas Venture Life Science Advisors, LLC | 1.44% | Reduce -15.3% | 962,884 | $12.7M |
| Balyasny Asset Management L.P. | 0.02% | Reduce -8.5% | 951,783 | $12.5M |
| BlackRock, Inc. | 0.00% | Add +77.7% | 817,621 | $10.8M |
| Affinity Asset Advisors, LLC | 0.46% | No change | 706,904 | $9.3M |
| Nantahala Capital Management, LLC | 0.53% | No change | 660,036 | $8.7M |
| Adage Capital Partners Gp, L.L.C. | 0.01% | Add +136.8% | 540,968 | $7.1M |
| ADAR1 Capital Management, LLC | 0.34% | No change | 540,054 | $7.1M |
| Vanguard Capital Management LLC | 0.00% | Add +46.3% | 454,778 | $6.0M |
| Driehaus Capital Management LLC | 0.03% | No change | 450,045 | $5.9M |
| TCG Crossover Management, LLC | 0.13% | No change | 416,301 | $5.5M |
| Kalehua Capital Management LLC | 3.07% | Add +270.3% | 405,040 | $5.3M |
| Siren, L.L.C. | 0.09% | No change | 347,718 | $4.6M |
| AQR Capital Management | 0.00% | Add +11.7% | 298,974 | $3.9M |
| Geode Capital Management, LLC | 0.00% | Add +71.0% | 296,870 | $3.9M |
| 72 Investment Holdings, LLC | 7.30% | No change | 276,831 | $3.6M |
| State Street Corp. | 0.00% | Add +65.7% | 232,587 | $3.1M |
| Vanguard Portfolio Management LLC | 0.00% | Add +50.5% | 223,551 | $2.9M |
| Two Sigma Investments, LP | 0.00% | Add +7.6% | 178,071 | $2.3M |
| JPMorgan Chase & Co. | 0.00% | Add +82.1% | 124,726 | $1.6M |
| Millennium Management | 0.00% | Add +86.2% | 118,434 | $1.6M |
| Goldman Sachs Group Inc. | 0.00% | Add +131.5% | 116,983 | $1.5M |
| Renaissance Technologies | 0.00% | Reduce -18.9% | 110,524 | $1.5M |
| UBS Group AG | 0.00% | Add +386.5% | 105,453 | $1.4M |
| Northern Trust Corp. | 0.00% | Add +52.7% | 88,089 | $1.2M |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +80.3% | 74,901 | $987K |
| F/m Investments LLC | 0.04% | Add +1.1% | 63,562 | $838K |
| Emerald Mutual Fund Advisers Trust | 0.03% | Add +1.1% | 63,562 | $838K |
| Walleye Capital LLC | 0.00% | New | 54,289 | $716K |
| Quantinno Capital Management LP | 0.00% | Add +46.5% | 52,720 | $695K |
| Bank of America Corp. | 0.00% | New | 51,707 | $681K |
| Raymond James Financial Inc. | 0.00% | Add +14.2% | 48,920 | $645K |
| XTX Topco Ltd | 0.01% | Reduce -20.9% | 47,819 | $630K |
| Citadel Advisors | 0.00% | Add +30.6% | 40,390 | $532K |
| FMR LLC | 0.00% | Add +0.2% | 38,975 | $514K |
| Boothbay Fund Management, LLC | 0.01% | Reduce -14.6% | 35,853 | $473K |
| D. E. Shaw & Co. | 0.00% | New | 34,213 | $451K |
| Jump Financial, LLC | 0.00% | New | 33,906 | $447K |
| Bank of New York Mellon Corp | 0.00% | Add +46.0% | 31,730 | $418K |
| AIHC Capital Management Ltd | 0.38% | No change | 30,265 | $399K |
| Mariner, LLC | 0.00% | Add +8.1% | 27,908 | $368K |
| BNP Paribas Financial Markets | 0.00% | Add +1015.3% | 26,254 | $346K |
| Panagora Asset Management Inc. | 0.00% | New | 25,572 | $337K |
| Charles Schwab Investment Management Inc. | 0.00% | Add +80.0% | 24,110 | $318K |
| Morgan Stanley | 0.00% | Reduce -45.3% | 22,501 | $297K |
| Ieq Capital, LLC | 0.00% | Add +66.3% | 21,246 | $280K |
| Marshall Wace, LLP | 0.00% | Reduce -44.5% | 19,060 | $251K |
| Guggenheim Capital LLC | 0.00% | Add +30.5% | 18,400 | $243K |
| T. Rowe Price Associates Inc. | 0.00% | New | 17,634 | $233K |
| HSBC Holdings PLC | 0.00% | New | 17,812 | $233K |
| Deutsche Bank AG | 0.00% | Add +51.3% | 15,948 | $210K |
| Nuveen, LLC | 0.00% | New | 15,861 | $209K |
| Acadian Asset Management LLC | 0.00% | Reduce -65.4% | 14,480 | $189K |
| Algert Global LLC | 0.00% | Reduce -25.9% | 14,212 | $187K |
| Susquehanna Portfolio Strategies, LLC | 0.00% | Reduce -29.4% | 13,500 | $178K |
| Mercer Global Advisors Inc. | 0.00% | New | 12,888 | $170K |
| Wealth Enhancement Advisory Services, LLC | 0.00% | New | 11,508 | $168K |
| Rhumbline Advisers | 0.00% | Add +25.9% | 12,401 | $163K |
| Trexquant Investment LP | 0.00% | Reduce -79.6% | 11,482 | $151K |
| Dimensional Fund Advisors LP | 0.00% | New | 11,406 | $150K |
| Cerity Partners LLC | 0.00% | New | 10,794 | $142K |
| Alliancebernstein L.P. | 0.00% | New | 12,180 | $138K |
| Engineers Gate Manager LP | 0.00% | Reduce -56.9% | 10,217 | $135K |
| American Century Companies Inc. | 0.00% | New | 10,153 | $134K |
| Wells Fargo & Company | 0.00% | Add +269.4% | 9,564 | $126K |
| Arax Advisory Partners | 0.00% | Add +6405.8% | 5,595 | $74K |
| Citigroup Inc. | 0.00% | Add +1578.3% | 5,169 | $68K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +59.6% | 5,130 | $68K |
| Russell Investments Group, Ltd. | 0.00% | Add +133.5% | 4,939 | $65K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | Add +237.0% | 4,627 | $61K |
| New York State Common Retirement Fund | 0.00% | No change | 3,000 | $40K |
| Simplex Trading, LLC | 0.00% | New | 1,975 | $26K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 1,929 | $25K |
| North Star Investment Management Corp. | 0.00% | No change | 1,800 | $24K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -3.5% | 1,587 | $21K |
| Legal & General Group Plc | 0.00% | Add +105.7% | 1,082 | $14K |
| GAMMA Investing LLC | 0.00% | Add +16.8% | 861 | $11K |
| TD Waterhouse Canada Inc. | 0.00% | No change | 808 | $11K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 598 | $8K |
| Versant Capital Management, Inc | 0.00% | Reduce -22.0% | 539 | $7K |
| Allworth Financial LP | 0.00% | Add +84.9% | 538 | $7K |
| EverSource Wealth Advisors, LLC | 0.00% | Add +31.4% | 498 | $7K |
| Duncker Streett & Co. Inc. | 0.00% | No change | 437 | $6K |
| IFP Advisors, Inc | 0.00% | Add +828.9% | 418 | $6K |
| Royal Bank of Canada | 0.00% | Add +238.5% | 352 | $4K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | No change | 225 | $3K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -76.8% | 193 | $3K |
| True Wealth Design, LLC | 0.00% | Add +93.9% | 192 | $3K |
| Sterling Capital Management LLC | 0.00% | Reduce -13.2% | 191 | $3K |
| Essential Partners LLC | 0.00% | Reduce -86.4% | 180 | $2K |
| Osaic Holdings, Inc. | 0.00% | Reduce -0.7% | 134 | $2K |
| Rothschild Investment LLC | 0.00% | Add +70.8% | 123 | $2K |
| Farther Finance Advisors, LLC | 0.00% | Add +113.0% | 115 | $2K |
| California State Teachers Retirement System | 0.00% | New | 93 | $1K |
| Optiver Holding B.V. | 0.00% | No change | 60 | $791 |
| Basecamp Wealth Advisors LLC | 0.00% | Add +80.0% | 45 | $593 |
| Timbuktu Capital Management, LLC | 0.00% | — | 38 | $501 |
| Global Retirement Partners, LLC | 0.00% | — | 35 | $461 |
| Wealth Enhancement Trust Services, Inc. | 0.00% | New | 33 | $435 |
| SJS Investment Consulting Inc. | 0.00% | Add +31.8% | 29 | $383 |
| Nisa Investment Advisors, LLC | 0.00% | Reduce -50.0% | 20 | $264 |
| Clearstead Advisors, LLC | 0.00% | New | 19 | $252 |
| JPL Wealth Management, LLC | 0.00% | Add +50.0% | 3 | $40 |
| SBI Securities Co., Ltd. | 0.00% | No change | 1 | $13 |
"% of holder's portfolio" is KRRO's weight in each manager's 13F, not the share of Korro Bio Inc. the manager owns.