Security key
04746L203
LeonaBio, Inc. - Common Stock, $0.0001 par value per share (LONA)
CUSIP: 04746L203
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 6,454,376
- Total 13F value
- $66,002,791
- Share change
- +166,793
- SEC-reported price per share
- $10.28
- Number of holders
- 40
- Value change
- +$1,954,523
- Number of buys
- 14
- Number of sells
- 12
- Shares outstanding
- 9,447,805
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
40
Top holders
10
LONA full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q4 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
PERCEPTIVE ADVISORS LLC
Disclosed value leader
PERCEPTIVE ADVISORS LLC
Comparable rows
15/15
Latest evidence
31 Mar 2026
13F
13D/G
Lead comparable stake: 20%
13D/G row: PERCEPTIVE ADVISORS LLC
Showing 1-6 of 15 holder rows.
Quick read
PERCEPTIVE ADVISORS LLC leads the comparable SEC ownership view at 20%.
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 PERCEPTIVE ADVISORS LLC's linked filing trail.
Comparable ownership
Top 5
PERCEPTIVE ADVISORS LLC
20%
ADAR1 Capital Management, LLC
7.7%
ACORN BIOVENTURES, L.P.
6.2%
Steven Michael Oliveira
4.1%
Baselake Partners, LP
1.9%
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 |
|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC |
13F
13D/G
Company
|
20%
from 13D/G
|
$14,075,067
1,859,322 shares
|
— | 31 Dec 2025 |
| ADAR1 Capital Management, LLC |
13D/G
13F
Company
|
7.7%
|
$6,969,268
727,481 shares
|
$0 | 31 Mar 2026 |
| ACORN BIOVENTURES, L.P. |
13D/G
Anders Hove
|
6.2%
|
$1,345,504
596,068 shares
|
+$212,929 | 06 Jan 2026 |
| 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 |
| ACORN CAPITAL ADVISORS, LLC |
13F
Company
|
5.3%
|
$3,798,164
501,739 shares
|
— | 31 Dec 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 Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
40
Shares
6,454,376
Rows available
40
| 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 Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
42
Q1 2026 holders
40
Holder diff
-2
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 value | Q1 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend