Company: CIB
Filing Date: 2025-10-21
Form Type: 6-K
Source: 0002058897-25-000045
Chunk: 1

Company: Grupo Cibest S.A.
Filing Date: 2025-10-21
Form: 6-K
Chunk 1
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 Panama, and upon obtaining the corresponding authorizations from the Superintendency of Banks of Panama and the Shareholders’ Meetings of Banistmo and the other subsidiaries, the following transactions have been duly completed as of today:

1. The merger of Sociedad Beneficiaria VB Panamá S.A. (“Sociedad Beneficiaria VB”) with Banistmo. Prior to the merger, Sociedad Beneficiaria VB Panamá S.A. received certain portfolios of assets that were partially spun off by Valores Banistmo S.A. (“Valores Banistmo”) and Banistmo Capital Markets Group Inc.

2. The partial spin-off by Banistmo of 100% of the shares it holds in Valores Banistmo in favor of Cibest Panamá Assets S.A. (“Cibest Panamá Assets”), a Panamanian corporation wholly owned by Grupo Cibest.

As of today, Valores Banistmo S.A. will continue to be a subsidiary of Grupo Cibest. The reorganization does not result in the introduction of any new ultimate shareholders nor changes to the control structure. Additionally, Valores Banistmo is now incorporated into the Cibest Capital brand, which consolidates and enhances the regional capabilities in securities, investment banking, and capital markets-related products of Grupo Cibest across the countries in which it operates.

Valores Banistmo retains its licenses as a securities brokerage firm and investment manager, both granted by the Superintendency of the Securities Market of Panama. There are no material changes to its business model.

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#### 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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