Irb Brasil Resseguros SaBMFBOVESPA: IRBR3

Notice to Shareholders - Article 133 of the LSA

· Issued by Irb Brasil Resseguros SA

IRB-BRASIL RESSEGUROS S.A.

PUBLICLY HELD COMPANY

Corporate Taxpayers' ID (CNPJ): 33.376.989/0001-91

Company's State Registry (NIRE): 333.00309179

NOTICE TO SHAREHOLDERS

Rio de Janeiro, February 26th, 2025 - IRB-Brasil Resseguros S.A. (B3: IRBR3) ("IRB(Re)" or "Company") herebyinforms its shareholders and the market in general that the documents listed in article 133 of Law No. 6,404, dated December 15, 1976, related to the financial year ended on December 31, 2024, are available to shareholders at the Company's registered office, located at Av. República do Chile, 330 - Centro, ZIP Code: 20031-170,Rio de Janeiro - RJ, as well as on the Company's and the Brazilian Securities and Exchange Commission's electronic pages on the world wide web, athttps://ri.irbre.com/and www.gov.br/cvm, respectively.

The Company also announces that the publication of such documents will be made in the newspaper Valor Econômico."

IRB - BRASIL RESSEGUROS S.A.

Marcos Pessôa de Queiroz Falcão

CEO & IRO