[6-K] Grupo Cibest S.A. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

Grupo Cibest S.A. reported that its Board of Directors unanimously authorized Vice President Business Mauricio Rosillo Rojas to partially settle his rights in the SVA Institutional Fund, an investment fund managed by Protección S.A. that primarily invests in Grupo Cibest shares. The company states that these transactions follow the procedure in its Good Governance Code for administrators settling contributions to the SVA Fund, signaling a governed and approved internal transaction involving exposure to its own stock.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

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FORM 6-K

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REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

For the month of March, 2026

Commission File Number 001-42656

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Grupo Cibest S.A.

(Translation of registrant’s name into English)

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Cra. 48 # 26-85

Medellín, Colombia

(Address of principal executive offices)

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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 þ Form 40-F o

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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.

			Grupo CIBEST S.A. (Registrant)
Date March, 24,2026			By:			/s/ MAURICIO BOTERO WOLFF.
			Name:			Mauricio Botero Wolff
			Title:			Vice President of Strategy and Finance

March 24, 2026

Medellin, Colombia

GRUPO CIBEST S.A. ANNOUNCES BOARD OF DIRECTORS RESOLUTION

The Board of Directors of Grupo Cibest S.A. (“Grupo Cibest”) unanimously authorized Mauricio Rosillo Rojas, Vice President Business of Grupo Cibest, to partially settle his rights in the SVA Institutional Fund (“SVA Fund”) managed by Protección S.A. (“Protección”), whose investment is primarily in shares of Grupo Cibest.

In carrying out these transactions, the procedure established in the Good Governance Code of Grupo Cibest for the settlement of contributions to the SVA Fund by administrators has been complied with.

Contacts

Mauricio Botero Wolff			Catalina Tobón Rivera
Strategy and Financial VP			IR Director
Tel.: (57 604) 4040858			Tel.: (57 601) 4885950
ir@Grupocibest.com.co			ir@Grupocibest.com.co

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