B3 S.A. - Brasil, Bolsa, Balcão

CNPJ nº 09.346.601/0001-25 NIRE 35.300.351.452

MATERIAL FACT

Guidance Revision for 2025

B3 S.A. - Brasil, Bolsa, Balcão ("B3" or "Company"), announces that, as a result of the approval by the Board of Directors of the Interest on Capital payment at a meeting held on this date, according to the Minutes and details below, there has been a change in its guidance for the payout.

Amount: R$1,500,000,000.00 Record date: 12/30/2025 Payment dates: 01/12/2026, 04/13/2026, 07/07/2026, and 10/07/2026 (4 equal installments) Revised Guidance for 2025

Previous Guidance

(R$ million)

Revised Guidance

(R$ million)

Payout1 90% - 110% 110% - 130%

The other projections for 2025 and the projections for 2026 remain unchanged, as per the Material Fact of 12/13/2024 and Material Fact of 12/12/2025.

São Paulo, December 23, 2025

André Veiga Milanez

Chief Financial, Corporate and Investor Relations Officer

‌1Includes interest on capital, dividends, share repurchases, or other applicable instruments. This projection is subject to business performance, achievement of financial leverage targets, and approval by the Board of Directors.

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B3 SA Brasil Bolsa Balcao published this content on December 23, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on December 23, 2025 at 22:11 UTC.