LeonaBio, Inc.
Ownership
Ownership Structure
Who owns LeonaBio, Inc. (LONA)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 50.2% of the shares are freely tradable; institutional investors hold 70.5%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Perceptive Advisors LLC | 19.73 | 1,859,322 | +0.0 | 06/30/2026 |
| Kalehua Capital Management LLC | 8.36 | 787,402 | +100.0 | 03/31/2026 |
| ADAR1 Capital Management LLC | 7.72 | 727,481 | +84.8 | 03/31/2026 |
| COMMODORE CAPITAL LP | 4.93 | 464,398 | +0.0 | 03/31/2026 |
| TCG Crossover Management, LLC | 4.93 | 464,398 | +0.0 | 06/30/2026 |
| NEA Management Company, LLC | 4.93 | 464,398 | +0.0 | 03/31/2026 |
| Spruce Street Capital LP | 4.18 | 393,701 | +0.0 | 06/30/2026 |
| Adage Capital Partners Gp LLC | 3.18 | 300,000 | +0.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 2.07 | 194,760 | +0.0 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 1.95 | 183,259 | +0.0 | 08/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: September 25, 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.