6-K

UNITED STATES

SECURITIES ANDEXCHANGE 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 March 2023

Commission FileNumber: 000-54290

Grupo Aval Accionesy 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:

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 ACCIONESY VALORES S.A.

TABLE OF CONTENTS

Item1

Grupo Aval Acciones y Valores S.A. (“Grupo Aval”) informs that an Extraordinary General Meeting of Shareholders of Grupo Aval has been summoned for March 10, 2023, pursuant to the following announcement:

“GrupoAval Acciones y Valores S.A.

ExtraordinaryGeneral Meeting of Shareholders

Summoning

TheBoard of Directors of Grupo Aval Acciones y Valores S.A. (“Grupo Aval” or the “Company”) summons the holdersof ordinary shares of the company to an Extraordinary General Meeting of Shareholders of the Company, which will be held in person onMarch 10, 2023, at 9:00 am, at the Assembly Hall of Banco de Bogotá located at Calle 36 No. 7-47, first floor in BogotáD.C.

Theagenda for the abovementioned meeting is the following:

Shareholdersmay be represented at the Meeting by means of a written power of attorney indicating the name of the proxy, the person in whose namethe proxy may be substituted, if applicable, and the date or time of the meeting or meetings for which the proxy is granted.

Inorder to expedite the issuance of your credential, please confirm your attendance to Deceval by calling 601 3077127 in Bogota or 01 8000111901 in the rest of the country. Likewise, it is recommended that the attorneys-in-fact of the shareholders present their proxies priorto the date of the Meeting at Deceval's office located at Carrera 7 # 71 – 21, Torre B, 12th Floor, Bogotá, D.C.

Boardof Directors

GrupoAval Acciones y Valores S.A. March 3, 2023”

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 3, 2023