LONA LeonaBio, Inc.
LeonaBio, Inc. (LONA) Institutional Ownership
What the institutions did with LONA last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| PERCEPTIVE ADVISORS LLC | 1.9M | 24.3% |
| Kalehua Capital Management LLC | 787.4K | 10.3% |
| ADAR1 Capital Management, LLC | 777.1K | 10.1% |
| ACORN CAPITAL ADVISORS, LLC | 634.5K | 8.3% |
| NEA Management Company, LLC | 464.4K | 6.1% |
| Commodore Capital LP | 464.4K | 6.1% |
| TCG Crossover Management, LLC | 464.4K | 6.1% |
| Spruce Street Capital LP | 393.7K | 5.1% |
| Blackstone Inc. | 324.6K | 4.2% |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 300.0K | 3.9% |
| VANGUARD CAPITAL MANAGEMENT LLC | 275.2K | 3.6% |
| Seven Fleet Capital Management LP | 154.2K | 2.0% |
| Simplify Asset Management Inc. | 149.3K | 1.9% |
| Propel Bio Management, LLC | 149.3K | 1.9% |
| GEODE CAPITAL MANAGEMENT, LLC | 80.4K | 1.0% |
| BlackRock, Inc. | 79.2K | 1.0% |
| RENAISSANCE TECHNOLOGIES LLC | 77.4K | 1.0% |
| VANGUARD FIDUCIARY TRUST CO | 42.8K | 0.6% |
| BANK OF AMERICA CORP /DE/ | 32.6K | 0.4% |
| MILLENNIUM MANAGEMENT LLC | 32.5K | 0.4% |
| Laird Norton Wetherby Trust Company, LLC | 21.8K | 0.3% |
| STATE STREET CORP | 16.3K | 0.2% |
| DIMENSIONAL FUND ADVISORS LP | 14.7K | 0.2% |
| NORTHERN TRUST CORP | 14.4K | 0.2% |
| TWO SIGMA INVESTMENTS, LP | 13.3K | 0.2% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Blackstone Inc. | New | 0 | 324.6K | +324.6K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | New | 0 | 300.0K | +300.0K |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 194.8K | 275.2K | +80.5K |
| ADAR1 Capital Management, LLC | Increased | 727.5K | 777.1K | +49.6K |
| BlackRock, Inc. | Increased | 56.1K | 79.2K | +23.1K |
| DIMENSIONAL FUND ADVISORS LP | New | 0 | 14.7K | +14.7K |
| RENAISSANCE TECHNOLOGIES LLC | Increased | 64.2K | 77.4K | +13.2K |
| XTX Topco Ltd | New | 0 | 11.7K | +11.7K |
| Seven Fleet Capital Management LP | Reduced | 164.7K | 154.2K | -10.5K |
| CITADEL ADVISORS LLC | New | 0 | 10.0K | +10.0K |
| VANGUARD FIDUCIARY TRUST CO | Increased | 40.0K | 42.8K | +2.8K |
| JPMORGAN CHASE & CO | Increased | 12 | 2.0K | +2.0K |
| OSAIC HOLDINGS, INC. | Reduced | 6.2K | 4.6K | -1.6K |
| ROYAL BANK OF CANADA | Reduced | 2.2K | 844 | -1.4K |
| UBS Group AG | Reduced | 1.3K | 196 | -1.1K |
| Annis Gardner Whiting Capital Advisors, LLC | Sold Out | 1.0K | 0 | -1.0K |
| MILLENNIUM MANAGEMENT LLC | Increased | 31.7K | 32.5K | +772 |
| Tower Research Capital LLC (TRC) | New | 0 | 438 | +438 |
| NewEdge Advisors, LLC | Sold Out | 410 | 0 | -410 |
| MORGAN STANLEY | Reduced | 471 | 89 | -382 |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 80.3K | 80.4K | +95 |
| BARCLAYS PLC | New | 0 | 42 | +42 |
| BANK OF AMERICA CORP /DE/ | Reduced | 32.6K | 32.6K | -9 |
| BNP PARIBAS FINANCIAL MARKETS | Reduced | 23 | 20 | -3 |
| CITIGROUP INC | Sold Out | 1 | 0 | -1 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.