Grupo Cibest (NYSE: CIB) launches 2026 buyback and ends 2025 plan

Rhea-AI Filing Summary

Grupo Cibest S.A. has approved regulations for a new 2026 share buyback program covering common shares, preferred shares, and ADRs, with an authorization of up to COP$1,350,000,000,000 over three years through April 21, 2029.

The company simultaneously terminated its 2025 buyback program, under which it repurchased 601,452 common shares and 12,164,612 preferred shares, including 5,137,320 shares represented by ADRs, for COP 690,022 million, equal to 51.11% of that program’s approved amount. After these transactions, outstanding shares total 509,103,132 common and 439,957,804 preferred shares.

Insights

Equity capital allocation analyst

Grupo Cibest refreshes its share buyback capacity with a larger, longer program.

Grupo Cibest’s board approved a new 2026 buyback framework authorizing up to COP$1,350,000,000,000 of repurchases over three years to April 21, 2029. This replaces the prior 2025 program, which has now been formally closed.

The 2025 program executed repurchases of 601,452 common and 12,164,612 preferred shares, including 5,137,320 shares via ADRs, for an aggregate COP 690,022 million, representing 51.11% of its approved capacity. This suggests meaningful, but not full, utilization of the prior authorization.

Following these actions, outstanding shares stand at 509,103,132 common and 439,957,804 preferred as of the announcement. Future repurchase activity and its scale within the new COP$1.35 trillion limit will determine the long-term impact on share count and per-share metrics.

Key Figures

2026 buyback authorization: COP$1,350,000,000,000 2026 buyback term: 3 years 2025 buyback execution value: COP 690,022 million +7 more

10 metrics

2026 buyback authorization COP$1,350,000,000,000 Maximum amount for 2026 share buyback program

2026 buyback term 3 years From approval date to April 21, 2029

2025 buyback execution value COP 690,022 million Total spent under 2025 share buyback program

2025 buyback utilization 51.11% Portion of total amount approved for 2025 program

2025 common shares repurchased 601,452 shares Common shares bought back under 2025 program

2025 preferred shares repurchased 12,164,612 shares Preferred shares bought back under 2025 program

ADR component of preferred repurchases 5,137,320 shares Preferred shares corresponding to ADRs in 2025 program

Outstanding shares - common 509,103,132 shares Common shares outstanding as of announcement

Outstanding shares - preferred 439,957,804 shares Preferred shares outstanding as of announcement

ADR to preferred ratio 1:4 One ADR represents four preferred shares

Key Terms

share buyback program, American Depositary Receipts – ADRs, ordinary General Shareholders’ Meeting, extraordinary General Shareholders’ Meeting, +2 more

6 terms

share buyback program financial

"the program for the buyback of common shares, preferred shares, and American Depositary Receipts"

A share buyback program is when a company uses its cash to repurchase its own outstanding shares from the market, reducing the number of shares available to investors. That matters because it can raise the value of remaining shares and signal management's confidence in the business—similar to a bakery buying back unsold loafs to make each remaining loaf represent a larger share of its oven’s output—though buybacks can also affect cash available for other uses.

American Depositary Receipts – ADRs financial

"common shares, preferred shares, and American Depositary Receipts – ADRs issued by Grupo Cibest"

ordinary General Shareholders’ Meeting financial

"in accordance with what was approved at the ordinary General Shareholders’ Meeting held on March 24, 2026"

extraordinary General Shareholders’ Meeting financial

"the buyback program approved at the extraordinary General Shareholders’ Meeting held on June 9, 2025"

outstanding common shares financial

"As of this date, the number of outstanding common shares is 509,103,132"

outstanding preferred shares financial

"and the number of outstanding preferred shares is 439,957,804."

Form 6-K: How Foreign Companies Report to the SEC →

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 April, 2026

Commission File Number 001-42656

--------------------

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.

Form 20-F þ Form 40-F o

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 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. ANNOUNCES THE APPROVAL OF THE REGULATION OF THE 2026 SHARE BUYBACK PROGRAM AND THE TERMINATION OF THE 2025 SHARE BUYBACK PROGRAM

Grupo Cibest S.A. (“Grupo Cibest”) hereby informs that its Board of Directors approved today the regulation governing the program for the buyback of common shares, preferred shares, and American Depositary Receipts – ADRs issued by Grupo Cibest, for an amount of up to one trillion three hundred fifty billion Colombian pesos (COP$1,350,000,000,000) and for a term of three (3) years counted from the approval of the regulation today until April 21, 2029 (the “2026 Buyback Program”), in accordance with what was approved at the ordinary General Shareholders’ Meeting held on March 24, 2026.

The regulation of the 2026 Buyback Program can be consulted at the following link: https://www.grupocibest.com/investor-relations/information-interest

Likewise, Grupo Cibest informs that, as of this date, the buyback program approved at the extraordinary General Shareholders’ Meeting held on June 9, 2025, has been terminated (the “2025 Buyback Program”).

Pursuant to the 2025 Buyback Program, 601,452 common shares, 12,164,612 preferred shares of which 5,137,320 correspond to ADRs[1] were bought back, representing an execution of COP 690,022 million pesos and 51.11% of the total amount approved for the 2025 Buyback Program. As of this date, the number of outstanding common shares is 509,103,132, and the number of outstanding preferred shares is 439,957,804.

[1] One (1) ADR represents four (4) preferred shares of Grupo Cibest.

2

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

3

FAQ

What did Grupo Cibest (CIB) announce regarding its 2026 share buyback program?

Grupo Cibest’s board approved regulations for a 2026 buyback program covering common shares, preferred shares, and ADRs, authorizing up to COP$1,350,000,000,000 over three years to April 21, 2029, under a mandate from the March 24, 2026 shareholders’ meeting.

When does Grupo Cibest’s new 2026 share buyback program end?

The 2026 share buyback program runs for three years from approval and is scheduled to end on April 21, 2029. During this period, Grupo Cibest may repurchase common shares, preferred shares, and ADRs up to the authorized COP$1,350,000,000,000 limit.

What happened to Grupo Cibest’s 2025 share buyback program?

Grupo Cibest terminated its 2025 share buyback program as of the announcement date. That program had been approved June 9, 2025 and is now closed, replaced operationally by the newly regulated 2026 buyback program approved by the board.

How many shares did Grupo Cibest repurchase under the 2025 buyback program?

Under the 2025 program, Grupo Cibest repurchased 601,452 common shares and 12,164,612 preferred shares, including 5,137,320 preferred shares represented by ADRs. These repurchases amounted to COP 690,022 million and used 51.11% of the program’s approved capacity.

What are Grupo Cibest’s outstanding common and preferred shares after the buybacks?

After the reported repurchases, Grupo Cibest has 509,103,132 common shares and 439,957,804 preferred shares outstanding. These figures reflect the impact of the 2025 buyback program at the time of the 2026 program announcement.

How are Grupo Cibest’s ADRs related to its preferred shares?

Each Grupo Cibest ADR represents four preferred shares. In the 2025 buyback program, 5,137,320 preferred shares were repurchased through ADRs, meaning the ADR structure directly channels foreign-market trading into underlying preferred share ownership.