Cosan S.A. - Form 3 Filing

This filing details the ownership of Cosan S.A. by Jose Cezario Menezes de Barros Sobrinho, the Chief Finance Officer. As of September 9, 2026, Mr. Sobrinho directly owns 438,932 shares granted under the company's Long-Term Incentive Program. These shares are subject to vesting periods and potential performance targets, which may affect the final amount delivered and applicable taxes. The filing was signed on September 10, 2026.