Irb Brasil Resseguros SaBMFBOVESPA: IRBR3

Notice to the Market - Quiet Period and Blackout Period 1Q26

· Issued by Irb Brasil Resseguros SA
IRB-BRASIL RESSEGUROS S.A. Corporate Taxpayer's ID (CNPJ): 33.376.989/0001- 91 Company Registry (NIRE): 333.0030917-9 Publicly held Company NOTICE TO THE MARKET

1Q26 Earnings Results Calendar

IRB(Re) ("Company") announces 1Q26 Earnings Release and Presentation Schedule:

EARNINGS RELEASE

Date: Monday, May 4, 2026 Time: After market close

EARNINGS PRESENTATION

Date: Tuesday, May 5, 2026

Time: 10:00 AM (São Paulo) / 9:00 AM (New York)

Language: The presentation will be conducted in Portuguese, with simultaneous interpretation into English

Virtual meeting link:

https://tenmeetings.com.br/ten-events/#/webinar?evento=IRB1T26_242

Quiet Period and Trading Blackout

IRB(Re) will observe a Quiet Period from April 20 to May 4, 2026 (inclusive). During this time, the Company will not comment on its financial performance to ensure fair disclosure practices. In addition, insiders and other related persons are prohibited from trading the Company's securities.

Rio de Janeiro, April 16, 2026.

Marcos Pessôa de Queiroz Falcão Chief Executive Officer Investor Relations Officer



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