Korro Bio, Inc.
Ownership
Ownership Structure
Who owns Korro Bio, Inc. (KRRO)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 71.5% of the shares are freely tradable; institutional investors hold 96.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Lynx1 Capital Management, LP | 10.45 | 1,538,296 | +0.0 | 06/30/2026 |
| NEA Management Company, LLC | 8.81 | 1,297,893 | +19.0 | 03/31/2026 |
| Balyasny Asset Management LLC | 7.06 | 1,040,054 | +0.0 | 03/31/2026 |
| VR Adviser, LLC | 6.86 | 1,009,500 | +0.0 | 03/31/2026 |
| Atlas Venture Life Science Advisors, LLC | 6.54 | 962,884 | -15.3 | 06/30/2026 |
| Affinity Asset Advisors, LLC | 4.80 | 706,904 | +0.0 | 06/30/2026 |
| Nantahala Capital Management, LLC | 4.48 | 660,036 | +10.0 | 03/31/2026 |
| Adage Capital Partners Gp LLC | 3.67 | 540,968 | +136.9 | 06/30/2026 |
| ADAR1 Capital Management LLC | 3.67 | 540,054 | +0.0 | 03/31/2026 |
| BlackRock Inc | 3.12 | 460,006 | +0.6 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Lynx1 Capital Management LP | 10% Owner | 1,544,980 | 18,230,764 $ | Aug 10, 2026 | indirect |
| Formela Jean Francois | Director | 132,650 | 1,565,270 $ | Sep 14, 2026 | indirect |
| Aiyar Ram | President and CEO | 69,046 | 814,743 $ | Aug 4, 2026 | direct |
| Cerio Jeffrey | General Counsel | 41,793 | 493,157 $ | Jul 15, 2026 | direct |
| Vincent Loic A | Chief Scientific Officer | 25,797 | 304,405 $ | Jul 15, 2026 | direct |
| Chappell Todd | Chief Operating Officer | 24,464 | 288,675 $ | Jul 15, 2026 | direct |
| Dolan Oliver | Senior Vice President, Finance | 16,241 | 191,644 $ | Sep 11, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Formela Jean Francois | Director | Sell | 6,602 | 14.12 | 93,220 |
| Sep 14, 2026 | Formela Jean Francois | Director | Sell | 31,888 | 14.12 | 450,259 |
| Sep 11, 2026 | Formela Jean Francois | Director | Sell | 1,750 | 13.99 | 24,483 |
| Sep 11, 2026 | Formela Jean Francois | Director | Sell | 8,450 | 13.99 | 118,216 |
| Sep 11, 2026 | Dolan Oliver | Senior Vice President, Finance | Sell | 5 | 13.72 | 69 |
| Sep 9, 2026 | Dolan Oliver | Senior Vice President, Finance | Sell | 6 | 13.60 | 82 |
| Sep 8, 2026 | Dolan Oliver | Senior Vice President, Finance | Sell | 7,347 | 13.51 | 99,286 |
| Aug 26, 2026 | Formela Jean Francois | Director | Sell | 51 | 13.96 | 712 |
| Aug 26, 2026 | Formela Jean Francois | Director | Sell | 249 | 13.96 | 3,476 |
| Aug 19, 2026 | Formela Jean Francois | Director | Sell | 4,884 | 14.00 | 68,376 |
| Aug 19, 2026 | Formela Jean Francois | Director | Sell | 23,584 | 14.00 | 330,176 |
| Aug 11, 2026 | Formela Jean Francois | Director | Sell | 368 | 13.96 | 5,137 |
| Aug 11, 2026 | Formela Jean Francois | Director | Sell | 1,775 | 13.96 | 24,779 |
| Aug 10, 2026 | Lynx1 Capital Management LP | 10% Owner | Buy | 1,462 | 13.19 | 19,279 |
| Aug 6, 2026 | Lynx1 Capital Management LP | 10% Owner | Buy | 5,222 | 11.40 | 59,530 |
| Aug 4, 2026 | Aiyar Ram | President and CEO | Sell | 5,802 | 10.84 | 62,917 |
| Jul 15, 2026 | Vincent Loic A | Chief Scientific Officer | Other | 7,500 | 0.00 | – |
| Jul 15, 2026 | Dolan Oliver | Senior Vice President, Finance | Other | 5,500 | 0.00 | – |
| Jul 15, 2026 | Cerio Jeffrey | General Counsel | Other | 6,500 | 0.00 | – |
| Jul 15, 2026 | Chappell Todd | Chief Operating Officer | Other | 7,500 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.