Security key
04746L203
LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA)
CUSIP: 04746L203
Q4 2025 13F Holders as of 31 Dec 2025
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 6,205,300
- Total 13F value
- $46,703,177
- Share change
- +3,906,117
- SEC-reported price per share
- $7.57
- Number of holders
- 42
- Value change
- +$29,686,872
- Number of buys
- 20
- Number of sells
- 10
- Shares outstanding
- 9,447,805
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2025
Institutions
42
Top holders
10
LONA full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q1 2026
Previous quarter: Q3 2025
LeonaBio, Inc. SEC filings
LeonaBio, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 04746L203
Recent filing periods:
Ownership snapshot
Top reported holders of LONA - LeonaBio, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Steven Michael Oliveira
Disclosed value leader
PERCEPTIVE ADVISORS LLC
Comparable rows
15/15
Latest evidence
31 Dec 2025
13D/G
3/4/5
13F
Lead comparable stake: 4.1%
13D/G row: Steven Michael Oliveira
Showing 1-6 of 15 holder rows.
Quick read
Steven Michael Oliveira leads the comparable SEC ownership view at 4.1%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Steven Michael Oliveira's linked filing trail.
Comparable ownership
Top 5
Steven Michael Oliveira
4.1%
Baselake Partners, LP
1.9%
PERCEPTIVE ADVISORS LLC
5.7%
BML Capital Management, LLC
3.4%
VANGUARD GROUP INC
1.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Steven Michael Oliveira |
13D/G
Oliveira Steven Michael
|
4.1%
|
$69,324
161,218 shares
|
-$788,375 | 01 Oct 2025 |
| Baselake Partners, LP |
13D/G
|
1.9%
|
$573,723
75,789 shares
|
-$921,208 | 31 Dec 2025 |
| PERCEPTIVE ADVISORS LLC |
3/4/5
13F
Director, 10%+ Owner · Company
|
5.7%
from 13F
|
$17,718,931
8,292,785 shares
mixed-class rows
|
— | 23 Dec 2025 |
| BML Capital Management, LLC |
13F
Company
|
3.4%
|
$1,337,493
323,066 shares
|
— | 30 Sep 2025 |
| VANGUARD GROUP INC |
13F
Company
|
1.6%
|
$636,687
153,789 shares
|
— | 30 Sep 2025 |
| Propel Bio Management, LLC |
13F
Company
|
1.6%
|
$618,015
149,279 shares
|
— | 30 Sep 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2025
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
42
Shares
6,205,300
Rows available
42
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2025 vs Q3 2025 Across Filers
Q3 2025 holders
32
Q4 2025 holders
42
Holder diff
10
| Investor | Q3 2025 Shares | Q4 2025 Shares | Share Diff | Share Chg % | Q3 2025 value | Q4 2025 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend