6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report Of Foreign Private Issuer

Pursuant To Rule 13a-16 Or 15d-16 Of

The SecuritiesExchange Act Of 1934

For the month of March 2020

Commission File Number: 000-54290

Grupo Aval Acciones y Valores S.A.

(Exact name of registrant as specifiedin its charter)

Carrera 13 No. 26A - 47

Bogotá D.C., Colombia

(Address of principal executive office)

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):

GRUPO AVAL ACCIONES Y VALORES S.A.

TABLE OF CONTENTS

Item 1

Grupo Aval Acciones y Valores S.A. (“Grupo Aval”) informs the following:

“Grupo AvalAcciones y Valores S.A.

Ordinary GeneralMeeting of Shareholders

Summoning

The Board of Directorsand the President of Grupo Aval Acciones y Valores S.A. summons the ordinary shareholders of the company to an Ordinary GeneralMeeting of Shareholders that will take place next Monday, March 30, 2020 at 9:00 am, at the auditorium of Banco de Bogotálocated at Calle 36 No. 7-47, first floor in Bogotá D.C.

The proposed agendafor the abovementioned meeting is the following:

Pursuant to legal andstatutory regulations, the Separate and Consolidated Financial Statements for the period ended on December 31, 2019 and relateddocumentation will be available for inspection during the legal term at the office of the General Secretary of the Company locatedat Carrera 13 N° 26A-47, Piso 26, Bogotá D.C.

Shareholders may berepresented in the meeting by a written proxy including the representatives’ names, its substitutes, the dates, periods andmeetings for which such proxy will be effective.

In order to obtainyour assistance certificate in advance, please confirm your assistance to Deceval at the phone number 3077127 (in Bogotá)or 018000111901 (for the rest of the country). It is recommended that prior to the meeting, the shareholders’ representativesfile their proxies at Deceval’s offices located in Calle 24A No. 59-42, Tower 3, 6th floor, Bogotá D.C.

Luis Carlos SarmientoGutiérrez

President - GrupoAval Acciones y Valores S.A.

March 5, 2020”

GRUPOAVAL ACCIONES Y VALORES S.A.

PROPOSEDDISTRIBUTION OF PROFITS

FORTHE PERIOD BEGINNING ON JANUARY 1st AND ENDING ON DECEMBER 31st, 2019

GENERALMEETING OF SHAREHOLDERS

All values are in US Dollars.

NOTES:

1. Dividends distributed under profits of year 2017 and subsequent years will be taxed and subject to a withholding tax, according to applicable tax laws.

2. Dividends distributed under profits of year 2016 and previous years will be taxed and subject to a withholding tax if they are distributed from the reserves without tax benefit to shareholders.

3. According to article 242-1 of the Tax Statute, special withholding for dividends received as Non-Taxed, will be discounted to all shareholders according to their participation, as a lower value of the dividend to be paid.

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.

Date: March 5, 2020