LeonaBio, Inc. (LONA) Institutional Ownership Changes & 13F Activity
LeonaBio, Inc. (LONA). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Blackstone Inc., Adage Capital Partners Gp, L.L.C., Vanguard Capital Management Llc, Adar1 Capital Management, Llc, and Blackrock, Inc..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Buy | +10,001 | — | 10,001 | $91.91K | Q2 2026 | Sep 02, 2026 |
| Seven Fleet Capital Management Lp | Sell | -10,523 | -6.4% | 154,153 | $1.42M | Q2 2026 | Aug 17, 2026 |
| Blackstone Inc. | Buy | +324,638 | — | 324,638 | $2.98M | Q2 2026 | Aug 14, 2026 |
| Adage Capital Partners Gp, L.L.C. | Buy | +300,000 | — | 300,000 | $2.76M | Q2 2026 | Aug 14, 2026 |
| Adar1 Capital Management, Llc | Buy | +49,619 | +6.8% | 777,100 | $7.14M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +11,749 | — | 11,749 | $107.97K | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Sell | -1,600 | -25.9% | 4,580 | $42.09K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Sell | -1,381 | -62.1% | 844 | $8.00K | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Buy | +772 | +2.4% | 32,450 | $298.22K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +42 | — | 42 | $386.00 | Q2 2026 | Aug 14, 2026 |
| Bank Of America Corp | Sell | -9 | -0.0% | 32,557 | $299.20K | Q2 2026 | Aug 14, 2026 |
| Vanguard Capital Management Llc | Buy | +80,473 | +41.3% | 275,233 | $2.53M | Q2 2026 | Aug 13, 2026 |
| Renaissance Technologies LLC | Buy | +13,202 | +20.6% | 77,424 | $711.53K | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Buy | +2,775 | +6.9% | 42,814 | $393.46K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Sell | -1,103 | -84.9% | 196 | $1.80K | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Sell | -382 | -81.1% | 89 | $818.00 | Q2 2026 | Aug 13, 2026 |
| Bnp Paribas Financial Markets | Sell | -3 | -13.0% | 20 | $184.00 | Q2 2026 | Aug 13, 2026 |
| Jpmorgan Chase & Co | Buy | +2,012 | — | 2,012 | $17.83K | Q2 2026 | Aug 12, 2026 |
| Geode Capital Management, Llc | Buy | +95 | +0.1% | 80,418 | $739.51K | Q2 2026 | Aug 12, 2026 |
| Dimensional Fund Advisors Lp | Buy | +14,728 | — | 14,728 | $135.35K | Q2 2026 | Aug 11, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +438 | — | 438 | $4.03K | Q2 2026 | Aug 11, 2026 |
| Blackrock, Inc. | Buy | +23,135 | +41.3% | 79,186 | $727.72K | Q2 2026 | Aug 07, 2026 |
| Mcilrath & Eck, Llc | Sell | -82 | -100.0% | 0 | $0.00 | Q2 2026 | May 19, 2026 |
| Citigroup Inc | Sell | -1 | -100.0% | 0 | $0.00 | Q2 2026 | May 11, 2026 |
| Annis Gardner Whiting Capital Advisors, Llc | Sell | -1,000 | -100.0% | 0 | $0.00 | Q2 2026 | May 06, 2026 |
Frequently asked questions about LONA activity
Which institutional owners are buying LONA?
Institutional owners buying LONA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in LONA activity?
"Buy" means an investor increased their reported position in LONA compared to the prior reporting period. This reflects growing exposure to LeonaBio, Inc. (LONA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in LONA increasing?
Institutional interest in LONA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.