Latest Period
Q1 2026
Security Snapshot
LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA) Institutional Ownership
CUSIP: 04746L203
13F Institutional Holders and Ownership History from Q3 2025 to Q1 2026
Institutions Reporting
40
Shares (Excl. Options)
6,454,376
Price
$10.28
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Symbol
- LONA on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 6,454,376
- Total 13F value
- $66,002,791
- Portfolio coverage rank
- 0%
- Share change
- +166,793
- Value change
- +$1,954,523
- Number of holders
- 40
- Shares outstanding
- 9,447,805
- SEC-reported price per share
- $9.79
- Insider filing price
- $9.79
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
Key facts
- LONA - LeonaBio, Inc. - Common Stock, $0.0001 par value per share is tracked under CUSIP 04746L203.
- 40 institutions reported positions in Q1 2026.
- 3 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 42 to 40 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $46,703,177 to $66,002,791.
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 40 institutions filings for Q1 2026.
Security key
04746L203
Latest holder period
Q1 2026
13F holders
40
13D/G owners
3
CIK / CUSIP context first
Open Q1 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
3
Security
LONA
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 20% | -0.55% | $13,052,440 | -$68,291 | 1,859,322 | -0.52% | Perceptive Advisors LLC | 16 Jan 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 31 Mar 2026, 40 institutional investors reported holding 6,454,376 shares of LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA). This represents 68% of the company’s total 9,447,805 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
68%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 20% | 1,859,322 | 0% | 0.38% | $19,113,830 |
| ADAR1 Capital Management, LLC | 7.7% | 727,481 | +85% | 0.45% | $7,478,505 |
| ACORN CAPITAL ADVISORS, LLC | 6.7% | 634,539 | +26% | 1.9% | $6,523,061 |
| NEA Management Company, LLC | 4.9% | 464,398 | 0% | 0.27% | $4,774,011 |
| TCG Crossover Management, LLC | 4.9% | 464,398 | 0% | 0.13% | $4,666,596 |
| Commodore Capital LP | 4.9% | 464,398 | 0% | 0.28% | $4,774,011 |
| Kalehua Capital Management LLC | 4.2% | 393,701 | 0% | 2.9% | $4,047,246 |
| Spruce Street Capital LP | 4.2% | 393,701 | 0% | 0.92% | $3,844,884 |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.1% | 194,760 | 0% | 0% | $2,002,133 |
| Seven Fleet Capital Management LP | 1.7% | 164,676 | +29% | 0.53% | $1,692,869 |
| Propel Bio Management, LLC | 1.6% | 149,279 | 0% | 0.94% | $1,495,776 |
| Simplify Asset Management Inc. | 1.6% | 149,279 | 0% | 0.02% | $1,534,588 |
| GEODE CAPITAL MANAGEMENT, LLC | 0.85% | 80,323 | +160% | 0% | $826,214 |
| RENAISSANCE TECHNOLOGIES LLC | 0.68% | 64,222 | -15% | 0% | $660,202 |
| BlackRock, Inc. | 0.59% | 56,051 | +49% | 0% | $576,204 |
| VANGUARD FIDUCIARY TRUST CO | 0.42% | 40,039 | 0% | 0% | $411,601 |
| BANK OF AMERICA CORP /DE/ | 0.34% | 32,566 | -0.83% | 0% | $334,778 |
| MILLENNIUM MANAGEMENT LLC | 0.34% | 31,678 | -90% | 0% | $325,650 |
| Laird Norton Wetherby Trust Company, LLC | 0.23% | 21,818 | 0% | 0% | $224,289 |
| STATE STREET CORP | 0.17% | 16,337 | +52% | 0% | $167,944 |
| NORTHERN TRUST CORP | 0.15% | 14,394 | +38% | 0% | $147,970 |
| TWO SIGMA INVESTMENTS, LP | 0.14% | 13,276 | +24% | 0% | $136,477 |
| ACADIAN ASSET MANAGEMENT LLC | 0.11% | 10,230 | -73% | 0% | $105,000 |
| OSAIC HOLDINGS, INC. | 0.07% | 6,180 | -33% | 0% | $63,530 |
| ROYAL BANK OF CANADA | 0.02% | 2,225 | +566% | 0% | $23,000 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
3
Latest
Q1 2026
Rows shown
1-3 of 3