SCHEDULE 13D/A

COSAN S A

Common shares, without par value ("Shares") and American Depositary Shares ("ADSs"), each representing four Shares · CUSIP: 22113B103

Event date: 2025-09-21

Reporting persons may disclose overlapping interests. Their amounts are shown individually and are not added into a filing total.

Filing-level shares

Unavailable

Percent of class

Unavailable

• Queluz Holdings Ltd.Reported CIK 0001449045

  Shares: 109,532,616.00 · Class: 5.9%

• Aguassanta Investimentos S.A.

  Shares: 562,682,406.00 · Class: 30.1%

• Aguassanta Negocios S.A.

  Shares: 20,268.00 · Class: 0.0%

• Rio das Pedras Acoes

  Shares: 77,640.00 · Class: 0.0%

• Rubens Ometto Silveira Mello

  Shares: 672,312,930.00 · Class: 36.0%

Amounts are as disclosed in this filing. Schedule type alone does not establish investment intent.