| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 20% | -0.55% | $13,052,440 | -$68,291 | 1,859,322 | -0.52% | Perceptive Advisors LLC | 16 Jan 2026 |
| Baselake Partners, LP | 1.9% | -62% | $573,723 | -$921,208 | 75,789 | -62% | Baselake Partners, LP | 31 Dec 2025 |
As of 31 Dec 2025, 40 institutional investors reported holding 6,077,299 shares of LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA). This represents 152% of the company’s total 3,988,895 outstanding shares.
The largest institutional shareholders of LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA) together control 152% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 47% | 1,859,322 | +244% | 0.26% | $14,075,067 |
| ACORN CAPITAL ADVISORS, LLC | 13% | 501,739 | 1.3% | $3,798,164 | |
| NEA Management Company, LLC | 12% | 464,398 | 0.18% | $3,515,493 | |
| TCG Crossover Management, LLC | 12% | 464,398 | 0.11% | $3,348,507 | |
| Commodore Capital LP | 12% | 464,398 | 0.23% | $3,515,493 | |
| ADAR1 Capital Management, LLC | 9.9% | 393,701 | 0.22% | $2,890,907 | |
| Kalehua Capital Management LLC | 9.9% | 393,701 | 0% | 3% | $2,980,317 |
| Spruce Street Capital LP | 9.9% | 393,701 | 0% | 0.98% | $2,980,317 |
| MILLENNIUM MANAGEMENT LLC | 8.1% | 324,445 | 0% | $2,456,049 | |
| VANGUARD GROUP INC | 3.9% | 153,789 | 0% | 0% | $1,164,183 |
| Propel Bio Management, LLC | 3.7% | 149,279 | 0% | 0.96% | $1,130,042 |
| Simplify Asset Management Inc. | 3.7% | 149,279 | 0% | 0.02% | $1,130,042 |
| RENAISSANCE TECHNOLOGIES LLC | 1.9% | 75,147 | +45% | 0% | $568,863 |
| Pathstone Holdings, LLC | 0.97% | 38,606 | 0% | 0% | $278,903 |
| BlackRock, Inc. | 0.94% | 37,643 | 0% | 0% | $284,958 |
| ACADIAN ASSET MANAGEMENT LLC | 0.94% | 37,482 | -6.7% | 0% | $282,000 |
| BANK OF AMERICA CORP /DE/ | 0.82% | 32,840 | +0.69% | 0% | $248,599 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.78% | 30,944 | +1.1% | 0% | $234,308 |
| Laird Norton Wetherby Trust Company, LLC | 0.55% | 21,818 | +116% | 0% | $165,162 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 0.52% | 20,936 | -0.24% | 0% | $158,486 |
| JANE STREET GROUP, LLC | 0.33% | 13,186 | 0% | $99,818 | |
| TWO SIGMA INVESTMENTS, LP | 0.27% | 10,746 | 0% | $81,347 | |
| STATE STREET CORP | 0.27% | 10,737 | 0% | 0% | $81,279 |
| NORTHERN TRUST CORP | 0.26% | 10,461 | 0% | $79,190 | |
| Scientech Research LLC | 0.25% | 10,108 | 0.05% | $76,518 |