6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report Of ForeignPrivate Issuer

Pursuant To Rule13a-16 Or 15d-16 Of

TheSecurities Exchange Act Of 1934

For the month of June 2026

Commission FileNumber: 001-36631

Grupo Aval Acciones y Valores S.A.

(Exact name ofregistrant as specified in its charter)

Carrera 13 No.26A - 47

BogotáD.C., Colombia

(Address of principalexecutive office)

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

GRUPO AVAL ACCIONESY VALORES S.A.

TABLE OF CONTENTS

ITEM
1.	Notice of relevant information dated June 9, 2026
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Item1

RELEVANT INFORMATION

Bogotá,June 9, 2026. Grupo Aval S.A., Banco de Bogotá S.A., Banco de Occidente S.A., and Banco Popular S.A. (collectively, the “Contributing Shareholders”) inform that, on this date, they have transferred, by means of in-kind contributions at book value, all of their common shares in Corporación Financiera Colombiana S.A. (“Corficolombiana”), representing 52.80% of its outstanding share capital, to Corporación Financiera Centroamericana S.A. (“Ficentro”), a company incorporated under the laws of the Republic of Panama and part of the Aval Financial Conglomerate.

Banco Popular S.A. will continue to serve as the consolidating entity of Corficolombiana pursuant to a shareholders’ voting agreement among the Contributing Shareholders, who collectively hold, directly, 100% of Ficentro’s share capital and, indirectly, through Ficentro, 52.80% of Corficolombiana’s share capital.

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: June 10, 2026