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, 2025

Commission File Number 001-32535

Bancolombia 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 oþ Form 40-F o

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.

Yes o No oþ

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


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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.

	BANCOLOMBIA S.A.(Registrant)
Date May 27, 2025	By:	/s/ MAURICIO BOTERO WOLFF.
Date May 29, 2025	By:	/s/ MAURICIO BOTERO WOLFF.
	Name:	Mauricio Botero Wolff
	Title:	Vice President of Strategy and Finance

May 2729, 2025

Medellin, Colombia

BANCOLOMBIA S.A. ANNOUNCES ~~THE~~DECISIONS ~~APPOINTMENT~~ADOPTED OFIN ~~CHAIRMAN~~ITS ~~AND~~SHAREHOLDERS' ~~VICE-CHAIRMAN OF THE BOARD OF DIRECTORS AND COMMITTEE MEMBERS~~ MEETING

~~The Board of Directors of~~ Bancolombia S.A. (“Bancolombia”) announced that, ~~its~~at ~~Board of Directors has elected Luis Fernando Restrepo Echavarría as Chairman of~~ the ~~Board~~Extraordinary ofShareholders' ~~Directors,~~Meeting ~~and~~held ~~Ricardo Jaramillo Mejía as Vice Chairman. In addition~~today, ~~it has authorized~~ the ~~formation~~following ofdecisions ~~the~~were ~~Support~~adopted ~~Committees of the Board of Directors,~~ with the ~~following~~required ~~composition~~majorities:

~~Audit~~1.Considering ~~Committee~~the combined dynamics of the Boards of Directors of Bancolombia and Grupo Cibest S.A. (“Grupo Cibest”), it was approved that the members of Bancolombia’s Board who also serve as members of the Board of Directors of Grupo Cibest’s will only receive 25% of the regular compensation approved for Bancolombia’s Board members. This percentage takes into account the individual responsibility and the commitment required for the preparation, analysis, and discussion of the Bancolombia’s Board matters. In line with the existing policy, 70% of the Board fees are to be paid in cash, and the remaining 30% are to be paid through a contribution to the Institutional Fund, that has as its sole investment the shares of Grupo Cibest.

~~•María~~2.Approval ~~Angélica~~of ~~Arbeláez~~a general authorization for the members of the Board of Directors and legal representatives of Bancolombia to make decisions related to the execution of recurring transactions and those within the ordinary course of business with Grupo Cibest.

~~•Sandra~~The ~~Guazzotti~~management of Bancolombia confirms that the necessary procedures and authorizations were completed to hold the General Shareholders' Meeting and that the decisions adopted fall within the powers of the General Shareholders’ Meeting in accordance with applicable law and the Company's Bylaws.

•Juan Esteban Toro

Risk Committee

•Sandra Guazzotti

•María Angélica Arbeláez

•Juan Esteban Toro

Technology and Cybersecurity Committee

•Sandra Guazzotti

•María Angélica Arbeláez

•Juan Esteban Toro

In addition, the Board of Directors of Bancolombia approved that matters related to corporate governance, as well as the appointment, compensation, and development of Bancolombia, be handled, respectively, by the Good Governance Committee and by the Designation, Compensation and Development Committee of Grupo Cibest S.A., as the parent company of Bancolombia.


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Contacts

Mauricio Botero Wolff			Catalina Tobón Rivera
Strategy and Financial VP			IR Director
Financial VP			IR Director
Tel.: (57 604) 4040858			Tel.: (57 601) 4885950
IR@bancolombia.com.cp			IR@bancolombia.com.cp
IR@bancolombia.com.co			IR@bancolombia.com.co


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