# LeonaBio, Inc.: Form 8-K/A, filed Dec 18, 2025

- Company: [LeonaBio, Inc.](/companies/lona.md) (CIK 1620463)
- Form: 8-K/A
- Filed: 2025-12-18
- Accepted by EDGAR: Dec 18, 2025, 08:24 ET
- Period: 2025-12-18
- Accession: 0001193125-25-323786
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/1620463/000119312525323786/atha-20251218.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1620463/000119312525323786/

## Items reported

- Item 1.01: Entry into a material agreement
- Item 3.02: Unregistered sale of equity
- Item 7.01: Regulation FD disclosure
- Item 8.01: Other events
- Item 9.01: Financial statements and exhibits

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/1620463/000119312525323786/atha-20251218.htm

Filed Dec 18, 2025.
Source: SEC EDGAR, the filing index for accession 0001193125-25-323786. Last ingested by Listed: Nov 4, 2026, 16:23 ET. No prices; not investment advice.