Cosan S.A. Files December 2025 Report (6-K)
Ticker: CSAN · Form: 6-K · Filed: Dec 31, 2025 · CIK: 1430162
Sentiment: neutral
Topics: sec-filing, regulatory-update, foreign-private-issuer
TL;DR
Cosan S.A. filed its 6-K for Dec 2025, confirming 20-F filing.
AI Summary
Cosan S.A. filed a Form 6-K on December 31, 2025, reporting for the month of December 2025. The filing indicates that Cosan S.A. is a publicly held company incorporated in Brazil and will file its annual reports under Form 20-F. The company's principal executive offices are located in Sao Paulo, Brazil.
Why It Matters
This filing provides an update on Cosan S.A.'s regulatory reporting status and confirms its adherence to SEC filing requirements for foreign private issuers.
Risk Assessment
Risk Level: low — This is a routine regulatory filing and does not contain new financial or operational information that would indicate increased risk.
Key Players & Entities
- Cosan S.A. (company) — Registrant
- 001-40155 (company) — SEC File Number
- 20251231 (date) — Filing Date
- December 2025 (date) — Reporting Period
- Form 20-F (document) — Annual Report Filing
- Sao Paulo, Brazil (location) — Principal Executive Offices
FAQ
What is the purpose of a Form 6-K filing?
A Form 6-K is a report of foreign private issuers pursuant to Rule 13a-16 or 15d-16 under the Securities Exchange Act of 1934, used to furnish information which the registrant may be required to disclose or make public pursuant to the laws of its home country or which it may make or be required to make public pursuant to the laws of any jurisdiction in which it is organized or incorporated or does business, or on which it has made or become the subject of a public announcement.
Which annual report form will Cosan S.A. file?
Cosan S.A. will file its annual reports under cover of Form 20-F.
What is the SEC file number for Cosan S.A.?
The SEC file number for Cosan S.A. is 001-40155.
What is the reporting period for this 6-K filing?
This Form 6-K report is for the month of December 2025.
Where are Cosan S.A.'s principal executive offices located?
Cosan S.A.'s principal executive offices are located at Av. Brigadeiro Faria Lima, 4100, - 16th floor, Sao Paulo, SP 04538-132, Brazil.
Filing Stats: 435 words · 2 min read · ~1 pages · Grade level 8.9 · Accepted 2025-12-30 19:26:34
Key Financial Figures
- $4 billion — (" Cosan Dez ") for a total amount of R$4 billion. These shares correspond, in terms of e
Filing Documents
- MainDocument.htm (6-K) — 31KB
- c317d63fc5105badddc1.jpg (GRAPHIC) — 32KB
- cf6b147e501e245cb7a2.jpg (GRAPHIC) — 6KB
- 0001554855-25-002360.txt ( ) — 85KB
SIGNATURES
SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized . Date: December 30, 2025 COSAN S.A. By: /s/ Rafael Bergman Name: Rafael Bergman Title: Chief Financial Officer