13F reference period
Q2 2026
Security Snapshot
LeonaBio, Inc. - Common Stock, $0.0001 par value (LONA) Institutional Ownership
CUSIP: 04746L203
13F Institutional Holders and Ownership History from Q3 2025 to Q3 2026
Institutions Reporting
44
Shares (Excl. Options)
7.27M
Full value: 7,271,601 · shares · 30 Jun 2026Price
$9.19
The headline uses the Q2 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended. Newer periods in the history table contain incoming reports and may be incomplete.
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- Security type / class
- Equity / Common Stock, $0.0001 par value
- Symbol
- LONA on Nasdaq
- All holders as of 30 Jun 2026
- Q2 2026
- Total 13F shares
- 7,271,601
- Total 13F value
- $66,826,058
- Portfolio coverage rank
- 0%
- Share change
- +817,258
- Value change
- +$7,508,002
- Number of holders
- 44
- Shares outstanding
- 9,451,741
- SEC-reported price per share
- $3.58
- Insider filing price
- $3.58
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source
Key facts
- LONA - LeonaBio, Inc. - Common Stock, $0.0001 par value is tracked under CUSIP 04746L203.
- 44 institutions reported positions in Q2 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 40 to 44 between Q1 2026 and Q2 2026.
- SEC-reported value moved from to
$66M
Full value: $66,002,791 · USD · 31 Mar 2026.$66.83M
Full value: $66,826,058 · USD · 30 Jun 2026
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 44 institutions filings for Q2 2026.
Security key
04746L203
13F reference period
Q2 2026
13F holders
44
13D/G owners
5
CIK / CUSIP context first
Open Q2 2026 holders
LONA full holder history
LeonaBio, Inc. SEC filings
LeonaBio, Inc. company facts
LeonaBio, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 04746L203:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
LONA
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Sermonix Pharmaceuticals, Inc. | 37% | $52,382,867 | 5,502,402 | Sermonix Pharmaceuticals, Inc. | 24 Aug 2026 | |||
| PERCEPTIVE ADVISORS LLC | 20% | 0% | $6,770,298 | 1,889,403 | 0% | Perceptive Advisors LLC | 26 Oct 2026 | |
| ACORN BIOVENTURES, L.P. | 12% | $14,208,800 | 1,492,521 | Anders Hove | 18 Aug 2026 | |||
| ADAR1 Capital Management, LLC | 7.7% | $6,969,268 | 727,481 | ADAR1 Capital Management, LLC | 31 Mar 2026 | |||
| Baselake Partners, LP | 1.9% | -62% | $573,723 | -$921,208 | 75,789 | -62% | Baselake Partners, LP | 31 Dec 2025 |
As of 30 Jun 2026,
44
institutional investors reported holding
shares of
LeonaBio, Inc. - Common Stock, $0.0001 par value (LONA).
This represents
77%
of the company’s total
outstanding shares.
7.27M
Full value: 7,271,601 · shares · 30 Jun 20269.45M
Full value: 9,451,741 · shares · Stored outstanding share count13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
76%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 20% | 1,859,322 | 0% | 0.27% | $17,087,169 |
| ADAR1 Capital Management, LLC | 8.2% | 777,100 | +6.8% | 0.34% | $7,141,549 |
| ACORN CAPITAL ADVISORS, LLC | 6.7% | 634,539 | 0% | 1.6% | $5,831,413 |
| TCG Crossover Management, LLC | 4.9% | 464,398 | 0% | 0.1% | $4,267,818 |
| Commodore Capital LP | 4.9% | 464,398 | 0% | 0.25% | $4,267,818 |
| NEA Management Company, LLC | 4.9% | 464,398 | 0% | 0.27% | $4,267,818 |
| Spruce Street Capital LP | 4.2% | 393,701 | 0% | 0.71% | $3,618,112 |
| Kalehua Capital Management LLC | 4.2% | 393,701 | 0% | 2.1% | $3,618,112 |
| Blackstone Inc. | 3.4% | 324,638 | 0.01% | $2,983,423 | |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 3.2% | 300,000 | 0% | $2,757,000 | |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.9% | 275,233 | +41% | 0% | $2,529,391 |
| Seven Fleet Capital Management LP | 1.6% | 154,153 | -6.4% | 0.23% | $1,416,666 |
| Simplify Asset Management Inc. | 1.6% | 149,279 | 0% | 0.02% | $1,371,874 |
| Propel Bio Management, LLC | 1.6% | 149,279 | 0% | 0.72% | $1,371,874 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.85% | 80,418 | +0.12% | 0% | $739,513 |
| BlackRock, Inc. | 0.84% | 79,186 | +41% | 0% | $727,719 |
| RENAISSANCE TECHNOLOGIES LLC | 0.82% | 77,424 | +21% | 0% | $711,527 |
| VANGUARD FIDUCIARY TRUST CO | 0.45% | 42,814 | +6.9% | 0% | $393,461 |
| BANK OF AMERICA CORP /DE/ | 0.34% | 32,557 | -0.03% | 0% | $299,199 |
| MILLENNIUM MANAGEMENT LLC | 0.34% | 32,450 | +2.4% | 0% | $298,216 |
| Laird Norton Wetherby Trust Company, LLC | 0.23% | 21,818 | 0% | 0% | $200,508 |
| STATE STREET CORP | 0.17% | 16,337 | 0% | 0% | $150,137 |
| DIMENSIONAL FUND ADVISORS LP | 0.16% | 14,728 | 0% | $135,351 | |
| NORTHERN TRUST CORP | 0.15% | 14,394 | 0% | 0% | $132,281 |
| TWO SIGMA INVESTMENTS, LP | 0.14% | 13,276 | 0% | 0% | $122,006 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
5
Headline period
Q2 2026
Rows shown
1-5 of 5
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q3 | 149,291 | $532,969 | $3.58 | 2 | |
| 2026 Q2 | 7,271,601 | $66,826,058 | +$7,508,002 | $9.19 | 44 |
| 2026 Q1 | 6,454,376 | $66,002,791 | +$1,954,523 | $10.28 | 40 |
| 2025 Q4 | 6,205,300 | $46,703,177 | +$29,686,872 | $7.57 | 42 |
| 2025 Q3 | 1,706,896 | $7,065,761 | +$7,065,666 | $4.14 | 32 |