SEC Form 6-K filed by Banco Macro S.A. ADR (representing Ten

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

February 27, 2026

Commission File Number: 001-32827

MACRO BANK INC.

(Translation of registrant’s name into English)

Av. Eduardo Madero 1182

Buenos Aires C1106ACY

Tel: 54 11 5222 6500 

(Address of registrant’s principal executive offices)

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

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

INDEX

Translation of a submission from Banco Macro to the CNV dated on February 27, 2026.

NOTICE OF SHAREHOLDERS’ MEETING

The Board of Directors of Banco Macro S.A. calls for a General Shareholders’ Meeting to be held both in person and virtually, on April 8^th 2026, at 11:00 AM (Buenos Aires Time), allowing for in-person participation at Avenida Eduardo Madero 1172, Autonomous City of Buenos Aires, this not being the Company's principal place of business, and remotely via the “Zoom” platform, in accordance with the provisions of Section 26 of the Bylaws, to discuss the following Agenda:

AGENDA

THE BOARD OF DIRECTORS

NOTES: Be advised that: (i) in order to be able to participate in the Meeting, by March 31^th 2026, the shareholders must submit by email addressed to [email protected] the following: (a) proof of the book-entry share account issued by Caja de Valores S.A. and prove their identity and legal capacity, as the case may be; (b) name and surname or corporate name, document type and number of the individuals or registration data of the legal entities or companies, expressly indicating the registry in which they are registered and the jurisdiction, and domicile and capacity. The same information must be provided by any individual who intends to attend the Meeting as a proxy for the shareholder, who shall submit to the Company, by the established deadline, the relevant and duly certified qualifying instrument; and (c) when applicable, Shareholders shall comply with the provisions under Title II, Chapter II, Sections 26 and 27 of the Rules of the Argentine Securities Exchange Commission.  In addition, Shareholders that are companies or other legal entities, either local or foreign, shall inform the name and surname, nationality, real domicile, date of birth, ID or passport number, CUIT, CUIL or other taxpayer ID number or professional registration number of their end beneficiaries; (ii) before the shareholders’ meeting, all shareholders who confirmed their attendance to the meeting shall be sent by email the link to access the platform and a password to be able to participate remotely, together with the instructions with the proceedings for the development of the meeting. Prior to the meeting, shareholders who have provided notice of their attendance via email will be sent a link to access the platform and the corresponding password for remote participation, along with a manual outlining the procedures for the meeting’s conduct. Unless otherwise specified, the email address used by each shareholder to provide notice of attendance will be used to send the videoconference link.; and (iii) no person declared incompetent under section 10 of the Financial Entities Law No. 21526 and/or under the Revised Text “Financial Entity Authorities” issued by the Central Bank of the Republic of Argentina may be nominated as candidate to hold office as member of the Board or the Supervisory Committee.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereto duly authorized.

Date: February 27, 2026