UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of February, 2020

Commission File Number: 001-37777

GRUPO SUPERVIELLE S.A.

(Exact name of registrant as specified in its charter)

SUPERVIELLE GROUP S.A.

(Translation of registrant’s name into English)

Bartolomé Mitre 434, 5th Floor

C1036AAH Buenos Aires

Republic of Argentina

(Address of 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:

Form 20-F  x            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):

Yes  ¨             No  x

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):

Yes  ¨             No  x

GRUPO SUPERVIELLE S.A.

TABLE OF CONTENTS

Autonomous City of Buenos Aires, February 20, 2020

Messrs.

Comisión Nacional de Valores

Bolsas y Mercados Argentinos S.A.

Mercado Abierto Electrónico S.A.

Present

Ref.: RELEVANT FACT – Capital contributions

To whom it may concern,

It is hereby informed that, on the date hereof, the Board of Directors of Grupo Supervielle S.A. committed capital contributions, to be made either in cash and/or in-kind and subject to the capitalization of such capital contributions by the relevant Shareholders’ Meetings, as per the following details: (i) AR$ 30,000,000 to Supervielle Productores Asesores de Seguros S.A.; (ii) AR$ 50,000,000 to Futuros del Sur S.A.; and (iii) AR$ 48,000,000 to Bolsillo Digital S.A.U.

Yours faithfully,

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, thereunto duly authorized.