LONA Institutional Ownership & Shareholders
LeonaBio, Inc. (LONA) is currently held by 43 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $63.00M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Perceptive Advisors Llc is currently the largest disclosed institutional shareholder of LONA tracked by InsiderSet, reporting ownership valued at approximately $17.09M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $9.19M, representing an estimated loss of -46.25% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 88% of the total disclosed LONA value among the investors covered in this analysis. Major shareholders include Perceptive Advisors Llc, Adar1 Capital Management, Llc, Acorn Capital Advisors, Llc, and several other long-term asset managers with concentrated positions in LeonaBio, Inc. (LONA).
This page ranks the largest institutional LONA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
43
Total Reported Value
$63.00M
Largest Holder
Perceptive Advisors Llc
Largest Position
$17.09M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Perceptive Advisors Llc | 0.27% | 1,859,322 | $17,087,169 | $9,185,051 | -$7,902,118 | -46.25% | |
| Adar1 Capital Management, Llc | 0.34% | 777,100 | $7,141,549 | $3,838,874 | -$3,302,675 | -46.25% | |
| Acorn Capital Advisors, Llc | 1.59% | 634,539 | $5,831,413 | $3,134,623 | -$2,696,790 | -46.25% | |
| Commodore Capital Lp | 0.25% | 464,398 | $4,267,818 | $2,294,126 | -$1,973,692 | -46.25% | |
| Nea Management Company, Llc | 0.27% | 464,398 | $4,267,818 | $2,294,126 | -$1,973,692 | -46.25% | |
| Tcg Crossover Management, Llc | 0.10% | 464,398 | $4,267,818 | $2,294,126 | -$1,973,692 | -46.25% | |
| Kalehua Capital Management Llc | 2.08% | 393,701 | $3,618,112 | $1,944,883 | -$1,673,229 | -46.25% | |
| Spruce Street Capital Lp | 0.71% | 393,701 | $3,618,112 | $1,944,883 | -$1,673,229 | -46.25% | |
| Adage Capital Partners Gp, L.L.C. | 0.00% | 300,000 | $2,757,000 | $1,482,000 | -$1,275,000 | -46.25% | |
| Vanguard Capital Management Llc | 0.00% | 275,233 | $2,529,391 | $1,359,651 | -$1,169,740 | -46.25% | |
| Seven Fleet Capital Management Lp | 0.23% | 154,153 | $1,416,666 | $761,516 | -$655,150 | -46.25% | |
| Propel Bio Management, Llc | 0.72% | 149,279 | $1,371,874 | $737,438 | -$634,436 | -46.25% | |
| Geode Capital Management, Llc | 0.00% | 80,418 | $739,513 | $397,265 | -$342,248 | -46.28% | |
| Blackrock, Inc. | 0.00% | 79,186 | $727,719 | $391,179 | -$336,540 | -46.25% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 77,424 | $711,527 | $382,475 | -$329,052 | -46.25% |
| Simplify Asset Management Inc. | 0.01% | 149,279 | $532,926 | $737,438 | +$204,512 | +38.38% | |
| Vanguard Fiduciary Trust Co | 0.00% | 42,814 | $393,461 | $211,501 | -$181,960 | -46.25% | |
| Bank Of America Corp | 0.00% | 32,557 | $299,199 | $160,832 | -$138,367 | -46.25% | |
| Millennium Management Llc | 0.00% | 32,450 | $298,216 | $160,303 | -$137,913 | -46.25% | |
| Laird Norton Wetherby Trust Company, Llc | 0.00% | 21,818 | $200,508 | $107,781 | -$92,727 | -46.25% | |
| State Street Corp | 0.00% | 16,337 | $150,137 | $80,705 | -$69,432 | -46.25% | |
| Dimensional Fund Advisors Lp | 0.00% | 14,728 | $135,351 | $72,756 | -$62,595 | -46.25% | |
| Northern Trust Corp | 0.00% | 14,394 | $132,281 | $71,106 | -$61,175 | -46.25% | |
| Two Sigma Investments, Lp | 0.00% | 13,276 | $122,006 | $65,583 | -$56,423 | -46.25% | |
| Xtx Topco Ltd | 0.00% | 11,749 | $107,973 | $58,040 | -$49,933 | -46.25% | |
| Acadian Asset Management Llc | 0.00% | 10,230 | $94,000 | $50,536 | -$43,464 | -46.24% | |
| Citadel Advisors Llc | 0.00% | 10,001 | $91,909 | $49,405 | -$42,504 | -46.25% | |
| Osaic Holdings, Inc. | 0.00% | 4,580 | $42,090 | $22,625 | -$19,465 | -46.25% | |
| Jpmorgan Chase & Co | 0.00% | 2,012 | $17,826 | $9,939 | -$7,887 | -44.24% | |
| Vanguard Global Advisers, Llc | 0.00% | 1,325 | $12,177 | $6,546 | -$5,631 | -46.25% | |
| Royal Bank Of Canada | 0.00% | 844 | $8,000 | $4,169 | -$3,831 | -47.88% | |
| Tower Research Capital Llc (Trc) | 0.00% | 438 | $4,025 | $2,164 | -$1,861 | -46.24% | |
| Ubs Group Ag | 0.00% | 196 | $1,802 | $968 | -$834 | -46.27% | |
| Rothschild Investment Llc | 0.00% | 150 | $1,379 | $741 | -$638 | -46.27% | |
| Mcilrath & Eck, Llc | 0.00% | 82 | $843 | $405 | -$438 | -51.95% | |
| Morgan Stanley | 0.00% | 89 | $818 | $440 | -$378 | -46.25% | |
| Us Bancorp \De\ | 0.00% | 81 | $744 | $400 | -$344 | -46.22% | |
| American Capital Advisory, Llc | 0.00% | 200 | $714 | $988 | +$274 | +38.38% | |
| Barclays Plc | 0.00% | 42 | $386 | $207 | -$179 | -46.25% | |
| Jones Financial Companies Lllp | 0.00% | 33 | $310 | $163 | -$147 | -47.41% | |
| Bnp Paribas Financial Markets | 0.00% | 20 | $184 | $99 | -$85 | -46.30% | |
| Sbi Securities Co., Ltd. | 0.00% | 12 | $43 | $59 | +$16 | +37.86% | |
| Caitong International Asset Management Co., Ltd | 0.00% | 1 | $4 | $5 | +$1 | +23.50% |
Frequently asked questions about LONA
Who are the largest institutional holders of LONA?
The largest institutional holders of LONA reported in the latest SEC Form 13F filings include Perceptive Advisors Llc, Adar1 Capital Management, Llc, Acorn Capital Advisors, Llc, Commodore Capital Lp, and Nea Management Company, Llc. InsiderSet ranks institutional holders by their latest reported LONA position.
What is LONA institutional ownership?
This page tracks LONA positions reported by institutional investment managers through SEC Form 13F. LeonaBio, Inc. (LONA) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own LONA?
InsiderSet currently tracks 43 institutional managers reporting LONA holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of LONA shareholders.
How much LONA stock do institutions own?
Institutional investment managers disclosed approximately $63.00M in LONA holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was LONA institutional ownership last updated?
The latest LONA institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional LONA holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its LONA position after the reporting date.
Are institutions buying or selling LONA?
Institutional buying and selling can be analyzed by comparing LONA positions across consecutive 13F reporting periods. InsiderSet's LONA Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View LONA ownership changes.
How has LONA institutional ownership changed over time?
InsiderSet tracks LONA institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.