# Cosan S.A.: Form 6-K, filed Dec 31, 2025

- Company: [Cosan S.A.](/companies/csany.md) (CIK 1430162)
- Form: 6-K
- Filed: 2025-12-31
- Accepted by EDGAR: Dec 30, 2025, 19:26 ET
- Period: 2025-12-30
- Accession: 0001554855-25-002360
- Inline XBRL: no
- Main document: https://www.sec.gov/Archives/edgar/data/1430162/000155485525002360/MainDocument.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/1430162/000155485525002360/

## 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/1430162/000155485525002360/MainDocument.htm

Filed Dec 31, 2025.
Source: SEC EDGAR, the filing index for accession 0001554855-25-002360. Last ingested by Listed: Oct 29, 2026, 06:03 ET. No prices; not investment advice.