Bank Bradesco

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

For the month of October, 2026 Commission File Number 1-15250

(Translation of Registrant's name into English)

Cidade de Deus, s/n, Vila Yara 06029-900 - Osasco - SP Federative Republic of Brazil

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F ___X___ Form 40-F _______

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes _______ No ___X____

Ratification of the Capital Increase by Bradesco's Board of Directors

Banco Bradesco S.A. ("Bradesco"or the"Company"), further to the information disclosed in the Material Fact, Notices to Shareholders and Notice to the Market relating to the Capital Increase through the Subscription of New Shares, disclosed, respectively, on July 29, 2026, September 16, 2026 and September 30, 2026 ("Capital Increase"), hereby informs its shareholders and the market in general that, on this date, the auction of the subscription receipts representing the remaining unsubscribed shares issued under the Capital Increase ("Auction of the Remaining Unsubscribed Shares") was held at B3 S.A. - Brasil, Bolsa, Balcão, with the sale of all receipts offered, representing 1,505,454 common shares and 14,553,057 preferred shares, at the price of R$ 15.50 per common share and R$ 17.86 per preferred share, representing a total gross amount of R$283,252,135.02.

Accordingly, Bradesco's Board of Directors, at a meeting also held on this date, approved the ratification of the Capital Increase resolved upon on July 29, 2026, in the total amount of R$10,000,000,000.00, with the full subscription of 604,852,753 new shares, consisting of 302,876,396 new common shares and 301,976,357 new preferred shares, at the issue price of R$15.43 per common share and R$17.64 per preferred share.

The additional total amount of R$ 3,307,054.32 relating to the premium obtained in the Auction of Unsubscribed Shares, equivalent to R$0.07 per common share and R$ 0.22 per preferred share, will be allocated to the formation of a capital reserve.

The Company clarifies that the Capital Increase remains subject to ratification by the Central Bank of Brazil ("BACEN"), pursuant to the applicable laws and regulations.

Following ratification by BACEN, the Company's capital stock will increase from R$93,770,000,000.00 to R$103,770,000,000.00, represented by 11,196,864,781 shares, comprising 5,606,747,177 common shares and 5,590,117,604 preferred shares, all registered and with no par value.

The shares issued under the Capital Increase (i) will be credited to the respective subscribers within three (3) business days following ratification of the Capital Increase by BACEN; and (ii) will be entitled, as from ratification by BACEN, to the full amount of dividends, interest on shareholders' equity and any other proceeds that may be declared by the Company.

The Company will keep its shareholders and the market duly informed of the ratification of the Capital Increase by BACEN, pursuant to the applicable regulations.

Cidade de Deus, Osasco, State of São Paulo, October 2, 2026