Welcome to our dedicated page for Cosan S.A. SEC filings (Ticker: CSAN), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Cosan S.A. filings document foreign-private-issuer reporting for an ADR issuer with investments across energy, logistics, gas, lubricants and related infrastructure. The company’s Form 6-K reports and Form 20-F annual reporting cover IFRS financial statements, management reports, operating results and portfolio disclosures for businesses including Raízen, Compass, Moove and Rumo.
Material-event filings also describe capital-structure actions, debt-reduction initiatives, governance matters, ownership changes in controlled companies and securities offerings involving portfolio assets. These disclosures connect Brazilian CVM material facts with U.S. reporting for Cosan’s NYSE-listed American depositary shares.
Cosan S.A. reports that it has filed its annual report on Form 20-F for the fiscal year ended December 31, 2025 with the U.S. Securities and Exchange Commission. The Form 20-F is available on both the SEC’s website and Cosan’s website, and shareholders can request a free hard copy containing the complete audited financial statements from the Company’s Investor Relations department in São Paulo.
Cosan S.A. reports 2025 net sales of R$40,418.6 million but a net loss of R$10,194.4 million, driven by heavy equity losses in investees and net finance expenses of R$7,791.4 million. EBITDA fell sharply to R$3,691.0 million, from R$7,647.1 million in 2024.
Net Debt was R$34,126.4 million at year-end, against cash and cash equivalents of R$27,243.7 million and total assets of R$135,117.5 million. Cosan fully exited its large Vale stake after receiving R$8,892.8 million in January 2025 and later selling the remaining shares. Its Raízen joint venture posted negative equity of R$1,132.5 million, was written down to zero on Cosan’s balance sheet, and entered an out-of-court reorganization in early 2026, though Cosan states it has no legal or constructive obligation to support Raízen. Despite the losses, Cosan declared dividends of R$2,831.7 million for 2025, with 3,966,570,932 shares outstanding as of December 31, 2025.
Cosan S.A. director Cordes Burkhard Otto filed an initial ownership report showing his equity stake in the company. The filing lists direct holdings of 42,332 shares of common stock and 857,610 American Depositary Shares, as well as 1,350,000 common shares held indirectly through DGF UBER ALLES FIM CP IE. This Form 3 does not reflect new buying or selling activity but establishes the director’s ownership position as of the reported date.
Cosan S.A. director and Chief Executive Officer Marcelo Eduardo Martins filed an initial Form 3 reporting his ownership in the company. He reports direct holdings of 1,960,840 shares of common stock (BVMF: CSAN3), 1,613,666 ADS CSAN1, and 6,347,353 shares tied to a long term incentive (BVMF: CSAN3) as of the reported date.
Cosan S.A. filed an initial insider ownership report for director Renato Antonio Secondo Mazzola. This Form 3 establishes his status as a reporting person but, based on the provided data, does not list any transactions or share holdings at this time.
Cosan S.A. director Rubens Ometto Silveira Mello has filed an initial ownership report detailing his indirect holdings of the company’s common stock. The filing lists 712,702,674 shares held through Aguassanta Participacoes S.A., 109,532,616 shares held through Queluz Holdings Limited, and 77,640 shares held through Rio das Pedras Acoes.
These are reported as indirect positions, reflecting share ownership through affiliated entities rather than direct personal holdings, and the filing does not record any new buy or sell transactions.
Cosan S.A. director Rosenberg Whitaker Carneiro Ralph Gustavo filed an initial Form 3, reporting indirect ownership of 4,251,582 shares of Cosan common stock through the investment fund Classe A do Perfin Rally Fundo de Investimento em Participacoes Multiestrategia Responsabilidade Limitada. He disclaims beneficial ownership beyond any pecuniary interest in the fund.
Cosan S.A. filed a Form 3 identifying Cruz Simon Flavia as a director of the company. The data provided shows no reported share purchases, sales, gifts, exercises, or other transactions, and no derivative positions listed for this reporting person.
Cosan S.A. Chief Legal Officer Maria Rita de Carvalho Drummond filed an initial ownership report showing existing equity interests in the company. She reports direct holdings of 1,678,151 shares of common stock and 672,888 ADSs, with each ADS representing four common shares.
She also reports 690,076 shares tied to long-term incentive programs, which are subject to continued service, vesting periods, performance targets, and tax effects, so the final number of shares delivered may increase or decrease over time.
Cosan S.A. director Rapparini Soares Luis Claudio filed an initial insider ownership report on Form 3. The provided data show no reported transactions, no derivative positions, and no exercise, gift, tax-withholding, or restructuring events associated with this filing.