Company: CIB
Filing Date: 2025-06-27
Form Type: 6-K
Source: 0002058897-25-000022
Chunk: 0

Company: Grupo Cibest S.A.
Filing Date: 2025-06-27
Form: 6-K
Chunk 0
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### 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 june, 2025

#### Commission File Number 001-42656
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#### Grupo Cibest S.A.
<div align='center'>(Translation of registrant’s name into English)

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#### Cra. 48 # 26-85

#### Medellín, Colombia
<div align='center'>(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-Fþ |     | Form 40-Fo |

| 1 |

### 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 june, 27, 2025 |     | By:               |     | /s/ MAURICIO BOTERO WOLFF.             |
|                     |     | Name:             |     | Mauricio Botero Wolff                  |
|                     |     | Title:            |     | Vice President of Strategy and Finance |

June 27, 2025

Medellin, Colombia

<div align='center'>GRUPO CIBEST S.A. PUBLISHES ITS STATEMENT OF FINANCIAL POSITION AND THE INTRINSIC VALUE OF ITS SHARES AS A RESULT OF HAVING BEEN THE BENEFICIARY OF THE DISTRIBUTION OF CERTAIN ASSETS AND SUBSIDIARIES BY BANCOLOMBIA S.A.</div>

Grupo Cibest S.A. (“Grupo Cibest”) published today, in compliance with Resolution 0901 dated May 7, 2025, issued by the Financial Superintendence of Colombia, which authorized Grupo Cibest to formalize the amendment of its by