LONA Institutional Ownership
Who owns LeonaBio, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 44 funds reported holding LONA at Jun 30, 2026, together owning 81.4% of the company.
- ▲15 buying vs 9 selling
- ▲Held by funds +8.7 pts
- ▲Funds holding +4
- ▲Superinvestors: 3 added, 0 cut
- ●Put/call not meaningful
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
4 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 44 | 40 | +10.0% |
| In funds' top 10 | 0 | 0 | – |
| 13F shares | 7.7M | 6.8M | +11.9% |
| Held by funds | 81.4% | 72.7% | +8.7 pts |
| New positions | 7 | 3 | +133.3% |
| Increased | 8 | 12 | −33.3% |
| Reduced | 6 | 6 | 0.0% |
| Sold out | 3 | 6 | −50.0% |
| Calls (shares) | 0 | 0 | – |
| Puts (shares) | 0 | 0 | – |
| Put/call ratio | – | – | – |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in LONA
All superinvestors →
Who owns LONA
share of fund held shares- Index and passive funds6.8%
- Active managers and hedge funds92.7%
- Banks and brokers0.5%
- Pensions, insurers and other0.0%
The top 10 holders own 84.4% of all LONA shares that funds reported. Groups are our own grouping of filers by name.
Filed so far for Q3 2026
1 fund changed their position- Caitong International Asset Management Co., LtdTrimmed−5 sh
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | Perceptive Advisors LLC | 19.73% | 1.9M | $17.1M | 0 |
| 2 | Kalehua Capital Management LLC | 8.36% | 787K | $7.2M | 0 |
| 3 | ADAR1 Capital Management, LLC | 8.25% | 777K | $7.1M | +50K |
| 4 | Acorn Capital Advisors, LLC | 6.73% | 635K | $5.8M | 0 |
| 5 | TCG Crossover Management, LLC | 4.93% | 464K | $4.3M | 0 |
| 6 | Commodore Capital LP | 4.93% | 464K | $4.3M | 0 |
| 7 | NEA Management Company, LLC | 4.93% | 464K | $4.3M | 0 |
| 8 | Spruce Street Capital LP | 4.18% | 394K | $3.6M | 0 |
| 9 | Blackstone Inc. | 3.45% | 325K | $3M | +325K |
| 10 | Adage Capital Partners Gp, L.l.c. | 3.18% | 300K | $2.8M | +300K |
- Blackstone Inc.+325K sh+$3M
- Adage Capital Partners Gp, L.l.c.+300K sh+$2.8M
- Vanguard Capital Management LLC+80K sh+$740K
- ADAR1 Capital Management, LLC+50K sh+$456K
- BlackRock, Inc.+23K sh+$213K
- Dimensional Fund Advisors LP+15K sh+$135K
- Renaissance Technologies LLC+13K sh+$121K
- XTX Topco Ltd+12K sh+$108K
- Seven Fleet Capital Management LP−11K sh−$97K
- Osaic Holdings, Inc.−1,600 sh−$15K
- Royal Bank of Canada−1,381 sh−$13K
- Annis Gardner Whiting Capital Advisors, LLC−1,000 sh−$10K
- UBS Group AG−1,103 sh−$10K
- NewEdge Advisors, LLC−410 sh−$4K
- Morgan Stanley−382 sh−$4K
- Bank of America Corp /de/−9 sh−$83
LONA institutional ownership FAQ
Who owns the most LONA stock?
In Q2 2026 13F filings the largest holder of LONA was Perceptive Advisors LLC, followed by Kalehua Capital Management LLC and ADAR1 Capital Management, LLC. Index fund managers are usually the biggest holders of large companies.
What percentage of LONA is owned by institutions?
Funds that file 13F reports held 81.4% of LONA's shares at Jun 30, 2026, compared with 72.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying LONA?
In Q2 2026, 15 funds bought LONA (7 of them new positions) and 9 sold (3 sold out completely). Among well known investors, 3 added and 0 cut. Our fund sentiment for LONA is strongly bullish.
What is LONA's institutional put/call ratio?
Too few option positions were reported for a meaningful ratio.
How current is this LONA ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.