LeonabioLONA
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 44 institutions reported holding Leonabio Inc. (LONA) in their 13F filings, up 4 from Q1 2026. 7 opened new positions and 3 sold out. The largest holders were Perceptive Advisors LLC ($17.1M), ADAR1 Capital Management, LLC ($7.1M) and Acorn Capital Advisors, LLC ($5.8M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Leonabio Inc.
- CUSIP
- 04746L203
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $6.1M |
| Exits | 3 | $15K |
All 13F filers, Q1 2026 → Q2 2026: 833,667 shares bought and 16,412 shares sold, net +817,255 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 44 holders
| Perceptive Advisors LLC | 0.27% | No change | 1,859,322 | $17.1M |
| ADAR1 Capital Management, LLC | 0.34% | Add +6.8% | 777,100 | $7.1M |
| Acorn Capital Advisors, LLC | 1.59% | No change | 634,539 | $5.8M |
| NEA Management Company, LLC | 0.27% | No change | 464,398 | $4.3M |
| Commodore Capital LP | 0.25% | No change | 464,398 | $4.3M |
| TCG Crossover Management, LLC | 0.10% | No change | 464,398 | $4.3M |
| Kalehua Capital Management LLC | 2.08% | No change | 393,701 | $3.6M |
| Spruce Street Capital LP | 0.71% | No change | 393,701 | $3.6M |
| Blackstone Inc. | 0.01% | New | 324,638 | $3.0M |
| Adage Capital Partners Gp, L.L.C. | 0.00% | New | 300,000 | $2.8M |
| Vanguard Capital Management LLC | 0.00% | Add +41.3% | 275,233 | $2.5M |
| Seven Fleet Capital Management LP | 0.23% | Reduce -6.4% | 154,153 | $1.4M |
| Propel Bio Management, LLC | 0.72% | No change | 149,279 | $1.4M |
| Simplify Asset Management Inc. | 0.02% | No change | 149,279 | $1.4M |
| Geode Capital Management, LLC | 0.00% | Add +0.1% | 80,418 | $740K |
| BlackRock, Inc. | 0.00% | Add +41.3% | 79,186 | $728K |
| Renaissance Technologies | 0.00% | Add +20.6% | 77,424 | $712K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +6.9% | 42,814 | $393K |
| Bank of America Corp. | 0.00% | Reduce -0.0% | 32,557 | $299K |
| Millennium Management | 0.00% | Add +2.4% | 32,450 | $298K |
| Laird Norton Wetherby Trust Company, LLC | 0.00% | No change | 21,818 | $201K |
| State Street Corp. | 0.00% | No change | 16,337 | $150K |
| Dimensional Fund Advisors LP | 0.00% | New | 14,728 | $135K |
| Northern Trust Corp. | 0.00% | No change | 14,394 | $132K |
| Two Sigma Investments, LP | 0.00% | No change | 13,276 | $122K |
| XTX Topco Ltd | 0.00% | New | 11,749 | $108K |
| Acadian Asset Management LLC | 0.00% | No change | 10,230 | $94K |
| Citadel Advisors | 0.00% | New | 10,001 | $92K |
| Osaic Holdings, Inc. | 0.00% | Reduce -25.9% | 4,580 | $42K |
| JPMorgan Chase & Co. | 0.00% | Add +16666.7% | 2,012 | $18K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 1,325 | $12K |
| Royal Bank of Canada | 0.00% | Reduce -62.1% | 844 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 438 | $4K |
| American Capital Advisory, LLC | 0.00% | No change | 200 | $2K |
| UBS Group AG | 0.00% | Reduce -84.9% | 196 | $2K |
| Rothschild Investment LLC | 0.00% | No change | 150 | $1K |
| Morgan Stanley | 0.00% | Reduce -81.1% | 89 | $818 |
| US Bancorp \de | 0.00% | No change | 81 | $744 |
| Global Retirement Partners, LLC | 0.00% | — | 52 | $477 |
| Barclays PLC | 0.00% | New | 42 | $386 |
| Jones Financial Companies LLLP | 0.00% | No change | 33 | $310 |
| BNP Paribas Financial Markets | 0.00% | Reduce -13.0% | 20 | $184 |
| SBI Securities Co., Ltd. | 0.00% | No change | 12 | $110 |
| Caitong International Asset Management Co., Ltd | 0.00% | No change | 6 | $55 |
"% of holder's portfolio" is LONA's weight in each manager's 13F, not the share of Leonabio Inc. the manager owns.