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. (CSAN) SEC filings provide detailed insight into the company’s financial position, segment structure, capital markets activity and governance. As a foreign private issuer, Cosan submits reports on Form 6-K that include condensed interim individual and consolidated financial statements, independent auditors’ review reports, and material facts originally disclosed under Brazilian CVM rules.
In these filings, investors can review Cosan’s interim statements of financial position, profit or loss, comprehensive income, changes in equity, cash flows and value added. The notes to the financial statements cover topics such as segment information, net sales to external customers by product or customer type, information on geographical areas, loans, borrowings and debentures, derivative financial instruments, related-party balances, provisions for legal proceedings, income taxes and share-based payment. Independent auditors’ reports included in the Form 6-K confirm that the condensed interim financial statements are prepared in accordance with CPC 21 and IAS 34.
Cosan also uses Form 6-K to furnish material facts about transactions and corporate events. Recent examples include the sale of shares in Rumo S.A. combined with total return swap derivatives, a transaction involving preferred shares in Cosan Dez Participações S.A. (the vehicle that holds shares of Compass Gás e Energia S.A.), and primary offerings of Cosan’s common shares directed to investors in Brazil, the United States and other jurisdictions. Other filings describe investment agreements and shareholders’ agreements involving Cosan’s controlling shareholders and institutional investors, as well as changes in the composition of the Executive Board and Board of Directors.
On this page, Stock Titan connects directly to EDGAR to surface Cosan’s latest 6-K submissions and other available SEC documents. AI-powered summaries highlight the key points of each filing, helping readers understand complex financial tables, derivative structures, capital offerings and governance disclosures without reading every page. Users can also monitor filings that touch on non-controlling interests, joint ventures, sectorial financial assets and liabilities, concessions payable and other items that shape Cosan’s consolidated results.
Cosan S.A. plans a secondary public offering of common shares in its controlled company Compass Gás e Energia S.A. in Brazil, with placement efforts also targeting investors abroad. The deal is a resale of existing Compass shares, not a new share issuance.
On the same date, Compass requested migration of its listing on B3 to the Novo Mercado segment, which emphasizes stronger corporate governance. The offering depends on registration by the Brazilian securities regulator, approval of the migration by B3, necessary corporate approvals, and prevailing market conditions. The shares will only be registered in Brazil and are not registered under U.S. securities laws.
Cosan S.A. has disclosed that it is evaluating a potential initial public offering of shares issued by its subsidiary Compass Gás e Energia S.A., referred to as the “Potential Offering.” This is an exploratory step and not a final decision to proceed.
The company states that any effective offering would depend on domestic and international market conditions and the receipt of required corporate approvals. Cosan emphasizes that, as of the announcement date, no decision has been made regarding completing the offering and it will inform the market of further developments.
Cosan S.A. reports that its wholly owned subsidiary, Cosan Luxembourg S.A., is fully redeeming its senior notes due June 2030 and January 2031. The principal amount of the 2030 bond is
This step is part of a liability management process stemming from public offerings carried out in 2025, aimed at reducing indebtedness and financial costs and improving the capital structure. With this redemption, Cosan states it has repaid approximately
Cosan S.A. reports an internal reorganization of a key shareholder group’s holdings. Vertiz Holding S.A. reduced its stake in Cosan from 1,450,000,000 common shares, or 36.56% of total capital, to 959,661,363 common shares, or 24.19% of total capital. Fundo de Investimento em Participações BPAC3 – Multiestratégia Responsabilidade Limitada now directly holds approximately 331,513,280 common shares, equivalent to about 8.36% of Cosan’s total share capital. The shareholder block states that its combined direct and indirect stake in Cosan is unchanged and that bound and unbound shares will continue to vote in the same manner.
Cosan S.A. is undertaking a series of debt liability management actions. The company will carry out the optional full early redemption of its 1st series of the 4th debenture issuance and its 6th debenture issuance on February 2, 2026, paying the nominal value (or outstanding balance) plus accrued remuneration and a premium of 0.35% per year, calculated on a business day basis until the original maturity dates.
In addition, wholly owned subsidiary Cosan Luxembourg S.A. will exercise the early call option on bonds maturing in 2029, redeeming the full principal amount of
Cosan S.A. reports that Banco Bradesco BBI S.A. and Banco BTG Pactual S.A. have jointly acquired preferred shares of Cosan Dez Participações S.A. for a total of R$4 billion. These shares represent approximately 23% of Cosan Dez’s total share capital and grant political rights equivalent to 9.98% of its voting capital.
Cosan Dez holds the shares of Compass Gás e Energia S.A. owned by Cosan. The transaction renegotiates financial terms previously agreed with Bradesco BBI in 2022. As part of the new structure, Cosan granted Bradesco BBI and BTG Pactual a put option on their Cosan Dez shares, exercisable in one or more stages from the 5th, 6th and 7th anniversaries of the transaction. Cosan states that this reduces the financial cost of the prior arrangement and aligns with its strategy to optimize liabilities following a recent capitalization.
Cosan S.A. reports that on December 22, 2025 it sold common shares of its subsidiary Rumo S.A. equivalent to approximately 4.96% of Rumo’s total share capital and, at the same time, entered into total return swap derivative instruments that provide the same economic exposure to those shares. This structure is described as part of Cosan’s strategy focused on liquidity and cash management.
Cosan states that the move does not reduce its political and economic rights in Rumo. After the transaction, Cosan’s overall participation in Rumo’s total share capital remains unchanged, with a 20.33% direct stake and a further 9.94% held via derivative instruments.
Cosan S.A. reported that on December 15 it sold common shares of its subsidiary Rumo S.A. equal to approximately 4.98% of Rumo’s total share capital. At the same time, Cosan entered into total return swap derivative instruments that provide the same economic exposure as the shares sold.
The company explains that this financial transaction is part of its strategy focused on liquidity and cash management and states that it does not reduce Cosan’s political and economic rights in Rumo. Cosan also sent a communication to Rumo in line with Article 12 of CVM Resolution No. 44.
Cosan S.A. (CSAN) reports weaker results for the nine months ended September 30, 2025. Consolidated net sales reached R$30.8 billion, down from R$32.2 billion a year earlier, while profit attributable to owners swung to a net loss of R$3.9 billion versus a R$126.4 million loss in 2024. EBITDA fell to R$7.5 billion from R$9.3 billion, pressured by higher financial expenses, negative derivative results and significant impairments, including R$1.0 billion mainly at Rumo and Moove.
Total assets declined to R$125.7 billion from R$141.3 billion, and total shareholders’ equity to R$32.1 billion from R$39.4 billion, reflecting losses and corporate movements. Cash and cash equivalents were R$12.9 billion, supported by strong operating cash flow of R$9.7 billion in the period. After quarter-end, Cosan completed primary share offerings of 2.1 billion new shares at R$5.00, raising R$10.5 billion and increasing share capital to R$10.28 billion.