KRRO Korro Bio, Inc.: institutional ownership and insider trading
112 funds reported holding $209M of Korro Bio, Inc. in their latest 13F filings; in Q2 2026 funds net bought $12.9M, with 18 new positions and 11 funds selling out; over the last 12 months insiders bought $20.8M and sold $5.70M on the open market; over its last four quarters it reported revenue of $2.38M and net income of −$107M.
KRRO revenue and earnings
- Quarter ended Jun 30, 2026: revenue $0, net income −$18.9M, EPS -1.07
- Quarter ended Mar 31, 2026: revenue $0, net income −$19.6M, EPS -1.69
- Quarter ended Dec 31, 2025: revenue $1.29M, net income −$50.0M, EPS -5.33
- Quarter ended Sep 30, 2025: revenue $1.09M, net income −$18.1M, EPS -1.92
Famous investors holding KRRO
- Two Sigma (Two Sigma Investments): $2.35M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $1.63M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $1.56M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.46M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $451K, 0.0% of the portfolio
Largest institutional holders of KRRO
- Lynx1 Capital Management LP — $20.3M
- Qiming U.S. Ventures Management, LLC — $17.6M
- NEA Management Company, LLC — $17.1M
- VR Adviser, LLC — $13.3M
- Atlas Venture Life Science Advisors, LLC — $12.7M
- BALYASNY ASSET MANAGEMENT L.P. — $12.5M
- BlackRock, Inc. (BLK) — $10.8M
- Affinity Asset Advisors, LLC — $9.32M
- Nantahala Capital Management, LLC — $8.70M
- ADAGE CAPITAL PARTNERS GP, L.L.C. — $7.13M
Recent KRRO insider trades
- Sep 14, 2026: Formela Jean Francois sold 48,690 shares ($686K)
- Sep 11, 2026: Dolan Oliver sold 5 shares ($69)
- Sep 9, 2026: Dolan Oliver sold 7,353 shares ($99.3K)
- Aug 26, 2026: Formela Jean Francois sold 300 shares ($4.19K)
5%+ owners
- Lynx1 Capital Management LP: 10.7% (Schedule 13G/A, filed Apr 2, 2026)
- Venrock Healthcare Capital Partners III, L.P.: 9.9% (Schedule 13G, filed Mar 17, 2026)
- BALYASNY ASSET MANAGEMENT L.P.: 6.6% (Schedule 13G/A, filed Aug 14, 2026)
- BlackRock, Inc.: 5.2% (Schedule 13G, filed Jul 29, 2026)