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KRRO

Korro Bio, Inc.
$14.72 +0.23 (+1.59%) At close · Jul 8
Market Cap
$212.30M
Shares
14,422,571

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

The Jun 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out.
Holders: 99
Total Value: $148,727,425
Total Shares: 13,138,240
Showing 1–100 of 103 holdings by value · page 1 of 2

Institutional Ownership Trend

11 quarters

Holder Concentration

Across 99 13F filers
Top Holder
11.7%
Dec 2023 → Mar 2026 · range 11.7% – 17.1%
of institutional value
Top 5
45.8%
Dec 2023 → Mar 2026 · range 40.9% – 60.9%
of institutional value
Top 10
67.3%
Dec 2023 → Mar 2026 · range 62.9% – 89.2%
of institutional value
HHI
578
Dec 2023 → Mar 2026 · range 539 – 1,010
Broadly held
Showing 100 of 103
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Small Lynx1 Capital Management LP $17,413,510 11.71% 1,538,296
Mid NEA Management Company, LLC $14,692,148 9.88% 1,297,893
Small Atlas Venture Life Science Advisors, LLC $12,872,526 8.66% 1,137,149
Large Balyasny Asset Management L.P. $11,773,411 7.92% 1,040,054
Mid Venrock Adviser, LLC $11,427,540 7.68% 1,009,500
Mid Affinity Asset Advisors, LLC $8,002,153 5.38% 706,904
Mid Nantahala Capital Management, LLC $7,471,607 5.02% 660,036
Mid ADAR1 Capital Management, LLC $6,113,411 4.11% 540,054
Mega BlackRock, Inc. $5,207,264 3.50% 460,006
Large Driehaus Capital Management LLC $5,094,509 3.43% 450,045
Mid TCG Crossover Management, LLC $4,712,527 3.17% 416,301
Mid Siren, L.L.C. $3,936,167 2.65% 347,718
Mega VANGUARD CAPITAL MANAGEMENT LLC $3,519,535 2.37% 310,913
Micro 72 Investment Holdings, LLC $3,133,726 2.11% 276,831
Mega AQR CAPITAL MANAGEMENT LLC $3,030,984 2.04% 267,755
Large ADAGE CAPITAL PARTNERS GP, L.L.C. $2,585,488 1.74% 228,400
Mega GEODE CAPITAL MANAGEMENT, LLC $1,965,638 1.32% 173,643
Mega CITADEL ADVISORS LLC $1,909,684 1.28% 168,700
Mega TWO SIGMA INVESTMENTS, LP $1,873,143 1.26% 165,472
Mega STATE STREET CORP $1,588,660 1.07% 140,341
Large RENAISSANCE TECHNOLOGIES LLC $1,542,089 1.04% 136,227
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,324,440 0.89% 117,000
Mega JANE STREET GROUP, LLC $1,309,768 0.88% 115,704
Small Kalehua Capital Management LLC $1,238,136 0.83% 109,376
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $985,972 0.66% 87,100
Mega CITADEL ADVISORS LLC $786,740 0.53% 69,500
Mega JPMORGAN CHASE & CO $775,419 0.52% 68,500
Mega MILLENNIUM MANAGEMENT LLC $720,019 0.48% 63,606
Mid EMERALD MUTUAL FUND ADVISERS TRUST Mutual Fund $711,518 0.48% 62,855
Mid F/m Investments LLC $711,518 0.48% 62,855
Mid XTX Topco Ltd $684,543 0.46% 60,472
Mega NORTHERN TRUST CORP Bank $653,186 0.44% 57,702
Large Trexquant Investment LP $636,274 0.43% 56,208
Mega GOLDMAN SACHS GROUP INC $572,124 0.38% 50,541
Mega RAYMOND JAMES FINANCIAL INC $484,925 0.33% 42,838
Mega JANE STREET GROUP, LLC $484,496 0.33% 42,800
Mid BOOTHBAY FUND MANAGEMENT, LLC $475,440 0.32% 42,000
Large ACADIAN ASSET MANAGEMENT LLC $473,459 0.32% 41,825
Mega VANGUARD FIDUCIARY TRUST CO Bank $470,244 0.32% 41,541
Mega MORGAN STANLEY $465,510 0.31% 41,123
Mega FMR LLC $440,348 0.30% 38,900
Large Quantinno Capital Management LP $407,270 0.27% 35,978
Large MARSHALL WACE, LLP $388,762 0.26% 34,343
Mega CITADEL ADVISORS LLC $349,946 0.24% 30,914
Small AIHC Capital Management Ltd $342,599 0.23% 30,265
Large Mariner, LLC $292,271 0.20% 25,819
Mid Engineers Gate Manager LP $268,306 0.18% 23,702
Mega Bank of New York Mellon Corp Bank $245,982 0.17% 21,730
Mega UBS Group AG $245,371 0.16% 21,676
Mid Quadrature Capital Ltd $230,429 0.15% 20,356
Mid ALGERT GLOBAL LLC $217,174 0.15% 19,185
Mid Susquehanna Portfolio Strategies, LLC $216,495 0.15% 19,125
Large GUGGENHEIM CAPITAL LLC $159,576 0.11% 14,097
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $151,620 0.10% 13,394
Large IEQ CAPITAL, LLC $144,635 0.10% 12,777
Large HRT FINANCIAL LP $122,142 0.08% 10,790
Mega DEUTSCHE BANK AG\ Bank $119,357 0.08% 10,544
Mega RHUMBLINE ADVISERS $111,502 0.07% 9,850
Large CWM, LLC $110,619 0.07% 9,772
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. Mutual Fund $36,382 0.02% 3,214
Large NEW YORK STATE COMMON RETIREMENT FUND Pension $33,960 0.02% 3,000
Mega WELLS FARGO & COMPANY/MN $29,307 0.02% 2,589
Mega BNP PARIBAS ARBITRAGE, SA $26,647 0.02% 2,354
Large Russell Investments Group, Ltd. $23,941 0.02% 2,115
Mega Vanguard Global Advisers, LLC $21,836 0.01% 1,929
Mid North Star Investment Management Corp. $20,376 0.01% 1,800
Mid Tower Research Capital LLC (TRC) $18,610 0.01% 1,644
Large Police & Firemen's Retirement System of New Jersey Pension $15,542 0.01% 1,373
Small Essential Partners LLC $14,965 0.01% 1,322
Mid GAMMA Investing LLC $11,347 0.01% 861
Mega PNC FINANCIAL SERVICES GROUP, INC. $9,395 0.01% 830
Large TD Waterhouse Canada Inc. $9,146 0.01% 808
Small Versant Capital Management, Inc $7,104 0.00% 539
Mid MAI Capital Management $6,859 0.00% 606
Mid Ameritas Investment Partners, Inc. $6,769 0.00% 598
Mega Legal & General Group Plc $5,954 0.00% 526
Small DUNCKER STREETT & CO INC $4,946 0.00% 437
Mid EverSource Wealth Advisors, LLC $4,288 0.00% 379
Mega CITIGROUP INC $3,486 0.00% 308
Mid Allworth Financial LP $3,294 0.00% 291
Mid Advisory Services Network, LLC $2,773 0.00% 245
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $2,547 0.00% 225
Mid Sterling Capital Management LLC $2,490 0.00% 220
Large OSAIC HOLDINGS, INC. $1,528 0.00% 135
Mega ROYAL BANK OF CANADA Bank $1,175 0.00% 104
Micro True Wealth Design, LLC $1,120 0.00% 99
Mid Arax Advisory Partners $973 0.00% 86
Mid ROTHSCHILD INVESTMENT LLC $815 0.00% 72
Small Root Financial Partners, LLC $713 0.00% 63
Small Keating Financial Advisory Services, Inc. $713 0.00% 63
Mid Optiver Holding B.V. $679 0.00% 60
Mid Farther Finance Advisors, LLC $611 0.00% 54
Mid IFP Advisors, Inc $509 0.00% 45
Micro Bare Financial Services, Inc $498 0.00% 44
Micro Wealth Preservation Advisors, LLC $498 0.00% 44
Large NISA INVESTMENT ADVISORS, LLC $452 0.00% 40
Micro Fortitude Family Office, LLC Family Office $441 0.00% 39
Small Basecamp Wealth Advisors LLC $283 0.00% 25
Small SJS Investment Consulting Inc. $249 0.00% 22
Small Sunbelt Securities, Inc. Broker-Dealer $192 0.00% 17
Key facts CIK 1703647 CUSIP 500946108 13F (30d) 3 filings 3 filers Visit website Investor relations

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