6-K

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 January, 2014

Comission 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 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 þ

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

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:  January 20, 2014	By:	/s/  JAIME ALBERTO VELÁSQUEZ B.
		Name:	Jaime Alberto Velásquez B.
		Title:	Vice President of Strategy and Finance

EX-99.1

EXHIBIT 99.1

BANCOLOMBIA S.A. ANNOUNCES THE CONCLUSION OF THE DEMATERIALIZATION PROCESS:

Medellín, Colombia, January 20, 2014

That from this date on, all of BANCOLOMBIA S.A.’s issued and outstanding shares will be held and traded exclusively in dematerialized form. Consequently, all of the shares held in physical form will no longer be valid and all future transfers or modifications to the rights held in them will be made through book-entry records made by the Depósito Centralizado de Valores – DECEVAL.

In accordance with the mentioned above, the new ISINs assigned by DECEVAL to the issued and outstanding shares, are the following:

Common shares: COB07PA00078

Preferred Non-Voting Shares: COB07PA00086

Contacts
Jaime A. Velásquez	Jose Humberto Acosta	Alejandro Mejía
Strategy and Finance VP Tel.: (574) 4042199	Financial VP Tel: (571) 4885934	IR Manager Tel.: (574) 4041837