Notice to Shareholders - Dividends Interest on Equity

PORTO SEGURO S.A. ("Company") (B3: PSSA3) hereby informs its shareholders that the Ordinary and Extraordinary General Meeting held on March 31, 2026 ("Meeting") approved the ratification of the distribution of interest on equity ("JCP") to shareholders, in the net amount of R$ 1,123,051,939.64, and the allocation of a portion of this amount, in the amount of R$ 804,616,208.90, to the mandatory minimum dividend for the fiscal year 2025, as resolved by the Company's Board of Directors, ad referendum of the General Meeting, as follows:

1. At a Board of Directors meeting held on March 25, 2025, interest on equity (JCP) was declared for the months of January to March 2025, subject to ratification by the General Meeting, in the gross amount of R$ 277,810,000.00, corresponding to R$ 0.43273681330 per share (excluding treasury shares), already credited to shareholders on March 28, 2025, based on the shareholding position of March 28, 2025, in net amounts, corresponding to R$ 0.37234392477 per share (excluding treasury shares), except for shareholders who are demonstrably exempt or immune;

2. At a Board of Directors meeting held on June 23, 2025, interest on equity (JCP) was declared for the months of April to June 2025, subject to ratification by the General Meeting, in the gross amount of R$ 311,011,000.00, corresponding to R$ 0.48320810620 per share (excluding treasury shares), already credited to shareholders on June 26, 2025, based on the shareholding position of June 26, 2025, in net amounts, corresponding to R$ 0.41507772131 per share (excluding treasury shares), except for shareholders who are demonstrably exempt or immune;

3. At a Board of Directors meeting held on September 22, 2025, interest on equity (JCP) was declared for the months of July to September 2025, subject to ratification by the General Meeting, in the gross amount of R$ 342,850,000.00, corresponding to R$ 0.53380435871 per share (excluding treasury shares), already credited to shareholders on September 25, 2025, based on the shareholding position of September 25, 2025, in net amounts, corresponding to R$ 0.45784608909 per share (excluding treasury shares), except for shareholders who are demonstrably exempt or immune; and

4. At a Board of Directors meeting held on December 19, 2025, interest on equity (JCP) was declared for the months of October to December 2025, subject to ratification by the General Meeting, in the gross amount of R$ 344,260,000.00, corresponding to R$ 0.53760384028 per share (excluding treasury shares), already credited to shareholders on December 26, 2025, based on the shareholding position of December 26, 2025, in net amounts, corresponding to R$ 0.45733804670 per share (excluding treasury shares), except for shareholders who are demonstrably exempt or immune.

The Assembly also approved the payment of additional dividends to the JCP ratified by the Assembly, as indicated above, in the amount of R$ 567,390,120.88, corresponding to R$ 0.88610135766 per share, to be attributed to the shareholders listed in the Company's database on this date, subject, in certain cases, to withholding income tax at source under Law No. 15,270/2025, as applicable. From April 1, 2026, the Company's shares will be traded "ex-rights" to the aforementioned dividends.

Finally, the Assembly approved that the payment of the aforementioned benefits be made under the following terms:

1. Until April 30, 2026, payments corresponding to 66.44% of the total approved amount will be made (considering the sum of the net value of interest on equity and dividends), corresponding to the interest on equity declared in accordance with items (i), (ii), (iii) and (iv) above; and

2. Until November 30, 2026, a payment of dividends corresponding to 33.56% of the total approved amount (considering the sum of the net value of interest on equity and dividends) will be made, referring to additional dividends in the amount of R$ 567,390,120.88, corresponding to R$ 0.88610135766 per share, subject, in certain cases, to withholding tax at source under Law No. 15,270/2025, as applicable.

São Paulo, March 31, 2026.

Domingos de Toledo Piza Falavina Investor Relations Officer