Grupo Cibest updates board Risk Committee membership

Grupo Cibest S.A. reports that its Board of Directors has approved changes to the composition of its Risk Committee.

Rhea-AI Filing Summary

Grupo Cibest S.A. reports that its Board of Directors has approved changes to the composition of its Risk Committee. The committee will now be formed by Andrés Felipe Mejía Cardona, Silvina Vatnick and Nicolás Zapata Zuluaga. The Audit, Good Governance, and Designation, Compensation and Development committees remain unchanged from their previously reported membership.

Key Figures

Commission File Number: 001-42656 Report month: April 2026 Report date: April 21, 2026 +2 more

5 metrics

Commission File Number 001-42656 SEC registration reference in Form 6-K

Report month April 2026 Period covered by Form 6-K report

Report date April 21, 2026 Date of Grupo Cibest governance communication

Medellín office phone (57 604) 4040858 Contact for Strategy and Financial VP

Bogotá office phone (57 601) 4885950 Contact for Investor Relations Director

Key Terms

Risk Committee, Audit Committee, Good Governance Committee, Designation, Compensation and Development Committee, +1 more

5 terms

Risk Committee financial

"approved changes in the composition of the members of its Risk Committee"

A risk committee is a group, usually part of a company’s board or senior leadership, tasked with spotting, assessing and guiding how the company manages threats to its finances, operations and compliance—think of it as a regular safety inspection for the business. Investors care because the committee’s work influences how likely the company is to avoid big losses, regulatory trouble or surprises that can hurt earnings and share value.

Audit Committee financial

"The other committees of the Board of Directors did not undergo any changes as follows Audit Committe"

A company's audit committee is a small group of board members who act like independent inspectors for the firm's finances, overseeing how financial reports are prepared, monitoring internal controls, and managing the relationship with external auditors. Investors care because a strong audit committee reduces the risk of accounting errors, fraud, or misleading statements, making financial statements more trustworthy and helping protect shareholder value.

Good Governance Committee financial

"Good Governance Committee iiscLuis Fernando Restrepo Echavarría iiscSylvia Escovar Gómez"

Designation, Compensation and Development Committee financial

"Designation, Compensation and Development Committee iiscSylvia Escovar Gómez"

foreign private issuer regulatory

"REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16"

A foreign private issuer is a company organized outside the United States that meets tests showing it is primarily foreign-controlled and therefore qualifies for a different set of U.S. reporting rules. For investors, that means the company files less frequent or differently formatted disclosures with U.S. regulators and may follow home-country accounting and governance practices, so buying its stock is like dining at a well-reviewed restaurant that follows its home kitchen’s rules instead of the local menu — you get access but should check what standards apply.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What corporate governance change did Grupo Cibest (CIB) announce in this 6-K?

Grupo Cibest announced that its Board of Directors approved changes to the composition of the company’s Risk Committee. The filing lists the updated member lineup while confirming that all other board committees keep the same membership previously reported to the market in an earlier 6-K.

Who are the members of Grupo Cibest (CIB) Risk Committee after the change?

Following the board’s decision, Grupo Cibest’s Risk Committee consists of three members: Andrés Felipe Mejía Cardona, Silvina Vatnick and Nicolás Zapata Zuluaga. These names are explicitly identified in the filing as the updated composition of the Risk Committee at the board of directors level.

Did Grupo Cibest (CIB) change the composition of its other board committees?

No, the company states that the Audit Committee, Good Governance Committee, and Designation, Compensation and Development Committee did not undergo any changes. They continue with the same members that were previously reported to the market in a 6-K dated June 18, 2025.

Who serves on Grupo Cibest (CIB) Audit and Good Governance committees?

The Audit Committee is composed of Silvina Vatnick, Andrés Felipe Mejía Cardona and Nicolás Zapata Zuluaga. The Good Governance Committee includes Luis Fernando Restrepo Echavarría, Sylvia Escovar Gómez and Silvina Vatnick, according to the board committee membership information reiterated in this report.

Where can investors find Grupo Cibest (CIB) board and director biographies?

Investor can access biographies of Grupo Cibest’s directors through the company’s website. The filing points to a specific corporate governance section under “board of directors and senior management” using the link https://www.grupocibest.com/corporate/corporate-governance/board-of-directors-and-senior-management.

How can investors contact Grupo Cibest (CIB) about this governance update?

The filing lists contacts for Strategy and Financial VP Mauricio Botero Wolff and IR Director Catalina Tobón Rivera, including Colombian telephone numbers and email addresses ir@Grupocibest.com.co, offering direct investor relations channels for questions about the Risk Committee changes or broader corporate governance topics.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/21/2026 - 05:11 PM EDT Learn about SEC filing dates

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 April,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 April,21,2026			By:			/s/ MAURICIO BOTERO WOLFF.
			Name:			Mauricio Botero Wolff
			Title:			Vice President of Strategy and Finance

April 21, 2026

Medellin, Colombia

GRUPO CIBEST S.A. INFORMS CHANGES IN THE COMPOSITION OF ITS RISK COMMITTEE

Grupo Cibest S.A. (“Grupo Cibest”) informs that its Board of Directors approved changes in the composition of the members of its Risk Committee.

As a result of the foregoing, the Risk Committee will be composed of the following members:

Risk Committee

iiscAndrés Felipe Mejía Cardona

iiscSilvina Vatnick

iiscNicolás Zapata Zuluaga

The other committees of the Board of Directors did not undergo any changes and continue to have the same members reported to the market on the 6-K dated June 18, 2025, as follows:

Audit Committe

iiscSilvina Vatnick

iiscAndrés Felipe Mejía Cardona

iiscNicolás Zapata Zuluaga

Good Governance Committee

iiscLuis Fernando Restrepo Echavarría

iiscSylvia Escovar Gómez

iiscSilvina Vatnick

Designation, Compensation and Development Committee

iiscSylvia Escovar Gómez

iiscLuis Fernando Restrepo Echavarría

2

iiscRicardo Jaramillo Mejía

The biography of the Directors can be accessed at this link: https://www.grupocibest.com/corporate/corporate-governance/board-of-directors-and-senior-management

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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