Shareholder votes ahead at Grupo Cibest (NYSE: CIB) 2026 meeting

Rhea-AI Filing Summary

Grupo Cibest S.A. has called its Ordinary General Shareholders’ Meeting for March 24, 2026, at 10:00 a.m. in Medellín, Colombia. The in-person meeting will review reports from the board, CEO, audit committee and external auditor, as well as non-consolidated and consolidated financial statements.

Shareholders will vote on approval of the financial statements and management reports, a profit distribution proposal, recurring and ordinary-course transactions with Bancolombia S.A., and changes to the legal reserve, including termination of the 2025 share repurchase program and approval of a 2026 share repurchase program.

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 February,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 February,26,2026			By:			/s/ MAURICIO BOTERO WOLFF.
			Name:			Mauricio Botero Wolff
			Title:			Vice President of Strategy and Finance

February 26, 2026

Medellin, Colombia

ORDINARY GENERAL SHAREHOLDERS’ MEETING NOTICE

The presidency of Grupo Cibest S.A. (“Grupo Cibest”) hereby calls the shareholders to the Ordinary General Shareholders’ Meeting, which will take place, in person, on Tuesday, March 24, 2026, at 10:00 a.m., at the Intercontinental Hotel, located at the following address: Calle 16 No. 28-51 km 5 Vía Las Palmas, in the city of Medellín.

The proposed agenda for the meeting is as follows:

1.Verification of quorum

2.Reading and approval of the agenda

3.Election of commission for vote count, approval, and execution of the minutes

4.Report from the Board of Directors and the CEO

5.Report of the Audit Committee

6.Non-consolidated and consolidated financial statements

7.Opinions and report of the External Auditor

8.Approval of the financial statements and management reports

9.Proposal on profit distribution and provision establishment

10.General authorization for the execution of recurring transactions and transactions within the ordinary course of business between Grupo Cibest S.A. and Bancolombia S.A.

11.Approval of the change of part of the allocation of the legal reserve, approval of the termination of the 2025 share repurchase program, and approval of the 2026 share repurchase program

Shareholders may be represented at the Meeting by granting powers of attorney in writing to authorized representatives, in accordance with Colombian law. To expedite entry into the Meeting and the registration process, we recommend sending a scanned copy of the powers of attorney to the following email address: asamblea.cibest@grupocibest.com.co no later than March 20 at 3:00 p.m.

Powers of attorney may not be granted to Grupo Cibest employees nor to any other person directly or indirectly related to the management of Grupo Cibest.

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Right of Inspection

Beginning on February 27, 2026, the proposals and the information concerning the Meeting will be available at Grupo Cibest’s website www.grupocibest.com

For shareholders interested in exercising their right of inspection at Grupo Cibest’s headquarters, the documentation will be available at the following address: Carrera 48 No. 26-85, South Tower, First floor, in the city of Medellín on business days from 8:00 a.m. to 12:00 p.m., and from 2:00 p.m. to 4:00 p.m. Saturdays, Sundays and holidays are not considered business days.

The right of inspection will be granted with a prior appointment requested through electronic mail asamblea.cibest@grupocibest.com.co and the process shall comply with the internal right of inspection policy, which may be accessed on our website.

We invite our shareholders to visit the website www.grupocibest.com to be periodically informed about the matters regarding the General Shareholders’ Meeting.

Management of the Company confirms that all required processes and authorizations needed for the general shareholder’s meeting notice were performed or obtained.

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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FAQ

When is Grupo Cibest (CIB) holding its 2026 Ordinary General Shareholders’ Meeting?

Grupo Cibest will hold its Ordinary General Shareholders’ Meeting on March 24, 2026, at 10:00 a.m. The meeting will take place in person at the Intercontinental Hotel in Medellín, Colombia, to address reports, financial statements, profit distribution, and other corporate matters.

What key items are on Grupo Cibest (CIB) 2026 shareholder meeting agenda?

The agenda includes board and CEO reports, audit committee and external auditor reports, and approval of non-consolidated and consolidated financial statements. Shareholders will also consider profit distribution, recurring transactions with Bancolombia S.A., and changes to the legal reserve and share repurchase programs.

What will Grupo Cibest (CIB) shareholders decide about share repurchase programs?

Shareholders are asked to approve termination of the 2025 share repurchase program and approval of a 2026 share repurchase program. These decisions form part of a broader agenda that also includes profit distribution and adjustments to the allocation of the company’s legal reserve.

How can Grupo Cibest (CIB) shareholders grant proxies for the 2026 meeting?

Shareholders may grant written powers of attorney to representatives, following Colombian law. To speed registration, scanned copies can be emailed to asamblea.cibest@grupocibest.com.co by March 20 at 3:00 p.m., but proxies cannot be granted to employees or management-related persons.

How can Grupo Cibest (CIB) shareholders exercise their right of inspection?

From February 27, 2026, proposals and meeting information will be available on www.grupocibest.com. Shareholders can also inspect documentation at the Medellín headquarters during stated business hours, after scheduling an appointment via asamblea.cibest@grupocibest.com.co, in line with the internal inspection policy.

What related-party transactions will Grupo Cibest (CIB) shareholders consider?

Shareholders will vote on a general authorization for recurring transactions and ordinary-course transactions between Grupo Cibest S.A. and Bancolombia S.A. This item aims to cover ongoing dealings between the two entities that fall within the normal scope of the company’s business activities.