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 2024

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 þ                    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.

Yes ◻                    No þ

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

EXHIBIT INDEX

Exhibit Number Description

99.1	Annual Report of Bancolombia S.A. for the Fiscal year ended December 31, 2023
99.1.1	Consolidated Financial Statements Bancolombia S.A. for the Fiscal year ended December 31, 2023
99.1.2	Separate Financial Statements Bancolombia S.A. for the Fiscal year ended December 31, 2023

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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 April 9, 2024	By:	/s/ JOSE HUMBERTO ACOSTA MARTIN.
	Name:	Jose Humberto Acosta Martin.
	Title:	Vice President of Finance

April 9, 2024

Medellín

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Contacts
Julian Mora Gomez	Jose Humberto Acosta	Catalina Tobon Rivera
Corporate VP	Financial VP	IR Director
Tel.: (57 601) 4042436	Tel.: (57 601) 4885934	Tel: (57 601) 4485950

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