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 UNDERTHE

SECURITIES EXCHANGE ACT OF 1934

April 13, 2020

Commission File Number: 001-32827

MACROBANK INC.

(Translation of registrant’s nameinto English)

Av. Eduardo Madero 1182

Buenos Aires C1106ACY

Tel: 54 11 5222 6500

(Address of registrant’s principalexecutive 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

City of Buenos Aires, April 13^th^ 2020

To

CNV / BYMA / MAE

Re.: Relevant event

Please be advised that Moody’s Investors Services and Moody’s Latin America have informed that, in line with Moody’s recent lowering of the Argentine government's bond ratings, the downgrading of the global ratings of Banco Macro S.A., particularly the ratings affected were:

Global Scale:

Foreign Currency subordinated debt Series A notes from Caa3 to Ca

Senior Unsecured debt Series B notes from Caa2 to Ca

National Scale:

Senior Unsecured debt Series B notes from B1.ar to Ca.ar

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: April 13, 2020