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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, Q1 2021

Institutional positions in Korro Bio, Inc. as of Mar 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
115
No complete 13F data for Q4 2020
Shares held
19.7M
No complete 13F data for Q4 2020
Total value
$186.6M
No complete 13F data for Q4 2020

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.

Institutional holdersQ1 2021: 115 institutions
Q1 2021: 115 institutionsQ2 2021: 91 institutionsQ3 2021: 88 institutionsQ4 2021: 84 institutionsQ1 2022: 86 institutionsQ2 2022: 58 institutionsQ3 2022: 55 institutionsQ4 2022: 50 institutionsQ1 2023: 43 institutionsQ2 2023: 41 institutionsQ3 2023: 42 institutionsQ4 2023: 40 institutionsQ1 2024: 49 institutionsQ2 2024: 64 institutionsQ3 2024: 71 institutionsQ4 2024: 84 institutionsQ1 2025: 75 institutionsQ2 2025: 71 institutionsQ3 2025: 92 institutionsQ4 2025: 83 institutionsQ1 2026: 99 institutionsQ2 2026: 106 institutions
Value heldQ1 2021: $186.6M
Q1 2021: $186.6MQ2 2021: $193.9MQ3 2021: $130.4MQ4 2021: $90.2MQ1 2022: $33.1MQ2 2022: $13.0MQ3 2022: $14.1MQ4 2022: $28.3MQ1 2023: $2.52MQ2 2023: $1.67MQ3 2023: $2.58MQ4 2023: $301.5MQ1 2024: $618.6MQ2 2024: $285.7MQ3 2024: $285.3MQ4 2024: $359.6MQ1 2025: $169.0MQ2 2025: $114.8MQ3 2025: $465.5MQ4 2025: $60.6MQ1 2026: $144.8MQ2 2026: $190.1M
Institutions holding KRRO and their total value by quarter
QuarterHoldersValue
Q2 2026106$190.1M
Q1 202699$144.8M
Q4 202583$60.6M
Q3 202592$465.5M
Q2 202571$114.8M
Q1 202575$169.0M
Q4 202484$359.6M
Q3 202471$285.3M
Q2 202464$285.7M
Q1 202449$618.6M
Q4 202340$301.5M
Q3 202342$2.58M
Q2 202341$1.67M
Q1 202343$2.52M
Q4 202250$28.3M
Q3 202255$14.1M
Q2 202258$13.0M
Q1 202286$33.1M
Q4 202184$90.2M
Q3 202188$130.4M
Q2 202191$193.9M
Q1 2021115$186.6M

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding Korro Bio, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding KRRO in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Federated Hermes, Inc.3,212,384$30.5M0.06%––
Wasatch Advisors Inc2,846,201$27.0M0.12%––
BlackRock Inc.2,569,102$24.4M0.00%––
Perceptive Advisors LLC2,113,661$20.1M0.27%––
Vanguard Group Inc1,524,382$14.5M0.00%––
State Street Corp1,386,272$13.2M0.00%––
Voloridge Investment Management, LLC709,235$6.74M0.05%––
Geode Capital Management, LLC477,001$4.53M0.00%––
Northern Trust Corp361,787$3.44M0.00%––
Lombard Odier Asset Management (Switzerland) SA264,589$2.51M0.17%––
Compagnie Lombard Odier SCmA263,249$2.50M0.06%––
South Dakota Investment Council253,711$2.41M0.04%––
Stifel Financial Corp204,500$1.94M0.00%––
Amundi Asset Management US, Inc.200,024$1.90M0.00%––
Charles Schwab Investment Management Inc198,737$1.89M0.00%––
Laurion Capital Management LP145,367$1.38M0.02%––
Susquehanna International Group, LLP129,746$1.23M0.00%––
Jane Street Group, LLC125,114$1.19M0.00%––
Citadel Advisors LLC122,508$1.16M0.00%––
Granahan Investment Management Inc102,317$972.0K0.02%––
Bank of New York Mellon Corp100,911$958.0K0.00%––
Public Employees Retirement System of Ohio100,688$957.0K0.00%––
Pura Vida Investments, LLC100,000$950.0K0.07%––
Squarepoint Ops LLC83,917$797.0K0.01%––
Handelsbanken Fonder AB80,000$760.0K0.00%––
Cubist Systematic Strategies, LLC78,215$743.0K0.01%––
Citigroup Inc77,707$738.0K0.00%––
Walleye Capital LLC67,800$644.0K0.04%––
Rafferty Asset Management, LLC61,934$588.0K0.00%––
Alps Advisors Inc61,033$580.0K0.01%––
LMR Partners LLP59,900$569.0K0.01%––
Bank of Montreal52,669$566.0K0.00%––
Captrust Financial Advisors58,288$554.0K0.01%––
Swiss National Bank57,800$549.0K0.00%––
Dimensional Fund Advisors LP56,573$537.0K0.00%––
Ikarian Capital, LLC56,479$536.0K0.08%––
Neuberger Berman Group LLC55,708$533.0K0.00%––
Baker Bros. Advisors LP55,555$528.0K0.00%––
California Public Employees Retirement System51,500$489.0K0.00%––
Kennedy Capital Management, Inc.47,953$456.0K0.01%––
TRB Advisors LP47,285$449.0K0.17%––
PDT Partners, LLC44,740$425.0K0.03%––
Simplex Trading, LLC44,197$419.0K0.02%––
Russell Investments Group, Ltd.39,784$377.0K0.00%––
California State Teachers Retirement System37,871$360.0K0.00%––
Northeast Financial Consultants Inc35,509$337.0K0.03%––
Alliancebernstein L.P.34,800$331.0K0.00%––
State of Wisconsin Investment Board33,800$321.0K0.00%––
New York State Common Retirement Fund33,700$320.0K0.00%––
UBS Group AG31,061$296.0K0.00%––
Rhumbline Advisers30,705$292.0K0.00%––
Cresset Asset Management, LLC30,000$285.0K0.00%––
EMC Capital Management29,992$285.0K0.20%––
Bank of America Corp29,328$279.0K0.00%––
Goldman Sachs Group Inc26,099$248.0K0.00%––
Walleye Trading LLC25,740$245.0K0.01%––
Advisor Group Holdings, Inc.22,912$218.0K0.00%––
Cutler Group LP22,820$216.0K0.02%––
Wells Fargo & Company22,521$213.0K0.00%––
Millennium Management LLC22,374$213.0K0.00%––
Credit Suisse AG20,958$198.0K0.00%––
Ameriprise Financial Inc20,316$193.0K0.00%––
Jaffetilchin Investment Partners, LLC20,030$190.0K0.02%––
Schonfeld Strategic Advisors LLC20,001$190.0K0.00%––
Two Sigma Investments, LP19,500$185.0K0.00%––
Deutsche Bank AG18,665$177.0K0.00%––
FMR LLC18,356$174.0K0.00%––
STRS Ohio17,800$169.0K0.00%––
JPMorgan Chase & Co16,383$155.0K0.00%––
UBS Asset Management Americas Inc16,100$152.9K0.00%––
Quilter Plc15,750$150.0K0.00%––
Price T Rowe Associates Inc14,871$141.0K0.00%––
American International Group, Inc.14,637$139.0K0.00%––
Manufacturers Life Insurance Company, The14,231$135.0K0.00%––
Morgan Stanley13,529$129.0K0.00%––
Voya Investment Management LLC11,376$108.0K0.00%––
ProShare Advisors LLC11,394$108.0K0.00%––
Victory Capital Management Inc11,003$105.0K0.00%––
Cubic Asset Management, LLC11,000$105.0K0.03%––
Parametric Portfolio Associates LLC10,992$104.0K0.00%––
MetLife Investment Management10,286$97.7K0.00%––
Advisory Services Network, LLC10,250$97.0K0.00%––
Cerity Partners LLC10,000$95.0K0.00%––
DLD Asset Management, LP10,000$95.0K0.01%––
DekaBank Deutsche Girozentrale10,000$85.0K0.00%––
Virtus ETF Advisers LLC8,184$78.0K0.03%––
Metropolitan Life Insurance Co5,551$52.7K0.00%––
Legal & General Group Plc4,247$40.0K0.00%––
Group One Trading, L.P.3,769$36.0K0.00%––
Maven Securities LTD3,500$33.0K0.00%––
Bank Julius Baer & Co. Ltd, Zurich3,158$30.0K0.00%––
Edmond de Rothschild Holding S.A.2,980$28.0K0.00%––
Meeder Asset Management Inc2,861$27.0K0.00%––
Royal Bank of Canada2,507$24.0K0.00%––
Ameritas Investment Partners, Inc.2,140$20.0K0.00%––
Tower Research Capital LLC (TRC)1,776$17.0K0.00%––
Great West Life Assurance Co1,717$16.0K0.00%––
Zurcher Kantonalbank (Zurich Cantonalbank)1,654$16.0K0.00%––
Pacer Advisors, Inc.1,446$14.0K0.00%––
FNY Investment Advisers, LLC1,400$13.0K0.00%––