ECOPETROL (EC) director Merlano Alcocer files initial insider Form 3

Rhea-AI Filing Summary

ECOPETROL S.A. director Merlano Alcocer Alberto Jose filed an initial ownership report on Form 3. This filing establishes his status as a director and begins formal disclosure of any future trades in the company’s securities. The document does not list any transactions or holdings details in the provided data.

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SEC 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^*

Merlano Alcocer Alberto Jose

(Last) (First) (Middle)

C/O ECOPETROL S.A.

KR 13 36-24

(Street)

BOGOTA 110311

(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
ECOPETROL S.A. [ EC ]

3a. Foreign Trading Symbol
[ECOPETROL]

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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

No securities are beneficially owned.

	/s/ Alberto Jose Merlano Alcocer	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)

FAQ

What does the ECOPETROL (EC) Form 3 for Merlano Alcocer Alberto Jose indicate?

The Form 3 shows that Merlano Alcocer Alberto Jose is a director of ECOPETROL S.A. It serves as his initial ownership report, setting the baseline for future required disclosures of trades in the company’s securities.

Does the ECOPETROL (EC) Form 3 show any stock purchases or sales?

No. The provided Form 3 data for ECOPETROL S.A. lists no transactions. It simply registers Merlano Alcocer Alberto Jose as a director and sets up the reporting framework for any future trades he may need to disclose.

Why is a Form 3 important for ECOPETROL (EC) insiders?

Form 3 is important because it establishes initial ownership for company insiders. After this filing, any material changes in an insider’s holdings must be reported on subsequent forms, improving transparency for ECOPETROL S.A. shareholders.

Is Merlano Alcocer Alberto Jose a major shareholder of ECOPETROL (EC)?

Based on the provided data, he is reported only as a director, not a ten percent owner. The Form 3 does not classify him as holding at least ten percent of ECOPETROL S.A.’s outstanding shares.

Does the ECOPETROL (EC) Form 3 include derivative securities information?

No derivative positions are listed in the provided Form 3 data. The derivativeSummary is empty, indicating no options, warrants, or similar instruments were reported for Merlano Alcocer Alberto Jose in this filing.