LeonaBio, Inc. SEC filings LONA
LeonaBio, Inc. has 469 filings in SEC EDGAR's recent list, going back to Oct 3, 2014. Its latest annual report, Form ARS, was filed on May 11, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Aug 14, 2026, covering the quarter ended Jun 30, 2026. The most recent current report (Form 8-K) was filed on Sep 22, 2026 (other events). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Apr 2, 2026 | — |
| 424B3 | Prospectus | Apr 2, 2026 | — |
| S-8 | Employee stock plan registration | Apr 1, 2026 | — |
| S-8 | Employee stock plan registration | Apr 1, 2026 | — |
| S-1/A | Amended registration statement | Mar 31, 2026 | — |
| S-1/A | Amended registration statement | Mar 31, 2026 | — |
| S-3 | Shelf registration | Jan 20, 2026 | — |
| S-3 | Shelf registration | Jan 20, 2026 | — |
| S-8 | Employee stock plan registration | Feb 27, 2025 | — |
| S-3 | Shelf registration | Oct 21, 2024 | — |
| S-8 | Employee stock plan registration | Feb 22, 2024 | — |
| S-8 | Employee stock plan registration | Mar 23, 2023 | — |
| 424B5 | Prospectus supplement | Jan 6, 2023 | — |
| S-8 | Employee stock plan registration | Mar 28, 2022 | — |
| S-3 | Shelf registration | Nov 15, 2021 | — |
| S-8 | Employee stock plan registration | Mar 26, 2021 | — |
| 424B4 | Prospectus | Jan 21, 2021 | — |
| S-1 | Registration statement | Jan 19, 2021 | — |
| S-8 | Employee stock plan registration | Sep 18, 2020 | — |
| 424B4 | Prospectus | Sep 18, 2020 | — |
| S-1MEF | Filing | Sep 17, 2020 | — |
| S-1/A | Amended registration statement | Sep 17, 2020 | — |
| S-1/A | Amended registration statement | Sep 14, 2020 | — |
| S-1/A | Amended registration statement | Sep 9, 2020 | — |
| S-1 | Registration statement | Aug 26, 2020 | — |
Showing 25 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Biological Products, (No Diagnostic Substances) (SIC 2836)
- Listed as
- LONA (Nasdaq)
- Fiscal year ends
- December 31
- Headquarters
- Bothell, WA
- SEC filer status
- Non-accelerated filer, Smaller reporting company
- SEC CIK
- 1620463
- Former names
- Athira Pharma, Inc. (until Jan 8, 2026); M3 Biotechnology, Inc. (until Jan 23, 2019)
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All 182 Biological Products, (No Diagnostic Substances) companies
Source: SEC EDGAR filings. This is company-reported data, not investment advice.