SEC FORM 3

SEC FORM 3SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

Vatnick Silvina

(Last)

(First)

(Middle)

CRA. 48 # 26-85

(Street)

MEDELLIN, COLOMBIA

050001

(City)

(State)

(Zip)

COLOMBIA

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
Grupo Cibest S.A. [ CIB ]

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Units in Grupo Cibest Equity Securities Fund⁽¹⁾	⁽¹⁾	⁽²⁾	Common Shares and Preferred Shares⁽¹⁾	23,863.0241	⁽¹⁾	I	Director Voluntary Pension Fund Units⁽¹⁾

Explanation of Responses:

1. The reported securities represent units held by the reporting person in an institutional voluntary pension fund sponsored by the issuer and administered by a third-party manager. The fund is unitized and invests primarily in Grupo Cibest common and preferred shares, together with a small amount of liquid assets and cash. The reporting person does not have voting or investment discretion with respect to the assets held by the fund, and the issuer has determined the strategic asset allocation of the fund. Amounts attributable to the reported units are payable solely in cash upon withdrawal determined by reference to the value of the underlying fund assets on the date of withdrawal.

2. The instrument has no expiration date

Remarks:

	/s/ Maria Fernanda Valencia Tafur, Attorney-in-Fact for Silvina Graciela Vatnick	03/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 3: SEC 1473 (03-26)

SEC Form 3 filed by new insider Vatnick Silvina