Grupo Cibest S.A.

6-K 1 cib-20260331xigcibest1q26.htm 6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

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

THE SECURITIES EXCHANGE ACT OF 1934

For the month of May 2026

Commission File Number 001-32535

Grupo Cibest S.A.

(Translation of registrant’s name into English)

Cra. 48 # 26-85

Medellín, Colombia

(Address of principal executive offices)

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)(2):___

Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-____________ .

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.

May 15, 2026

Medellin, Colombia

GRUPO CIBEST S.A. RELEASES QUARTERLY REPORT FOR THE FIRST QUARTER OF 2026

On May 4, 2026, Grupo Cibest S.A. (“Grupo Cibest”) furnished on Form 6-K a press release presenting financial information for the fiscal quarter ended March 31, 2026 (the “Press Release”).

The quarterly report for the fiscal quarter ended March 31, 2026 (the “Quarterly Report”) is furnished with this Form 6-K.

Readers should be aware that the consolidated financial information in the Press Release, and the consolidated financial information in the Quarterly Report for the fiscal quarter ended Marxh 31, 2026, are the same, and the Quarterly Report is being furnished solely to fulfill a legal reporting requirement in Colombia. Readers should also be aware that all financial information of Grupo Cibest that is included in the Quarterly Report was prepared in accordance with International Financial Reporting Standards.

Quarterly Report

January - March 2026

Grupo Cibest S.A. and Consolidated Grupo Cibest

Address:

Carrera 48 # 26-85

Medellín, Colombia

ISSUER’S CURRENT SECURITIES

As of March 31, 2026

Additionally, Grupo Cibest has a Level III ADR listed on the NYSE. Each ADR represents four preferred shares.

GRUPO CIBEST SHARE BUYBACK

On March 24, 2026, Grupo Cibest's shareholders' meeting approved the he transfer of the amount of COP 431,418,157,024.55 from the legal reserve, to be added to the reserve for executing the share buyback program approved at the extraordinary shareholders’ meeting held on June 9, 2025. Furthermore, the shareholders’ meeting of Grupo Cibest authorized the termination of the share buyback program approved at the extraordinary shareholders’ meeting held on June 9, 2025, and authorized the 2026 share buyback program for an amount of up to one trillion three hundred fifty billion Colombian pesos (COP 1,350,000,000,000), for a term of three (3) years counted as from the adoption of the regulations of the program by the Board of Directors. Likewise, it authorized the Board of Directors to approve the share repurchase regulations under which management was authorized to execute said program.

As of March 31, 2026, the results of the program were as follows:

*Number of repurchased ADRs converted into preferred shares.