LEONABIO INC

Historical 13F Holders

Symbol
LONA
CUSIP
04746L203
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 04746L203 since 12/18/2024, largest first.

Filer % of Class Filed
Sermonix Pharmaceuticals, Inc. 13D
36.9% 8/31/2026
Event 8/24/2026
Perceptive Advisors LLC 13D/A
20.0% 8/25/2026
Event 8/22/2026
Acorn Bioventures, L.P. 13G/A
12.1% 8/20/2026
Event 8/18/2026
ADAR1 Capital Management, LLC 13G
7.7% 5/15/2026
Event 3/31/2026
Under 5%, checked the "5 percent or less" box, or amended by a later filing (1)
Baselake Partners, LP 13G/A
1.9% 2/6/2026
Event 12/31/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2026 Q2 45 7.67 M $70.4 M
2026 Q1 41 6.85 M $70.1 M
2025 Q4 42 6.21 M $46.7 M
2025 Q3 35 1.72 M $7.62 M