6-K

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

March 20, 2024

Commission File Number: 001-32827

MACRO BANK INC.

(Translation of registrant’s name intoEnglish)

Av. Eduardo Madero 1182

Buenos Aires C1106ACY

Tel: 54 11 5222 6500

(Address of registrant’s principal executiveoffices)

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 March 20, 2024.

Autonomous City of Buenos Aires, March 20^TH^ 2024.

To

Comisión Nacionalde Valores (Argentine Securities Exchange Commission)

Re. Relevant Event

Please be advised that the Board of Directors, at the meeting held on the date hereof, resolved to call an special shareholders’ meeting to be held in person on May 6th 2024 at 11am (Buenos Aires Time), at the offices located at Avenida Eduardo Madero 1172, Autonomous City of Buenos Aires, which is not the Company's principal place of business.

Sincerely,

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: March 20, 2024