AZUL · Azul S.A.

This 6-K discloses an operational update regarding the issuance and subsequent cancellation of subscription warrants tied to Azul’s capital structure actions. The Company reaffirms its prior Material Fact – Ratification (April 15, 2026) and clarifies that warrants issued to investors bound by the Chapter 11 Plan — filed in U.S. bankruptcy court — and all warrants generated from secondary-market-traded subscription rights are being voided. This reflects regulatory and procedural compliance with both Brazilian securities law (CVM Resolution 44 and Article 157, paragraph 4 of Law No. 6,404/1976) and the constraints of its ongoing U.S. restructuring. Rather than relying on B3 to reverse transactions, Azul assumes direct responsibility for reimbursing investors who paid to acquire or exercise those invalidated rights — a procedural shift intended to streamline redress. The requirement for investors to submit detailed, verified claims (including tax ID, trade date, brokerage, and bank details) indicates administrative rigor but also introduces execution risk and timing uncertainty for claimants. While no financial impact quantification, pricing terms, or aggregate warrant volume is provided, the event affects shareholder equity mechanics and investor trust in the integrity of the warrant distribution process.