CEMEX (CX) Chief Comptroller discloses CX and CPO insider holdings on Form 3

Rhea-AI Filing Summary

CEMEX SAB DE CV filed a Form 3 showing that Chief Comptroller Jaime Martinez Merla already holds company securities. The filing reports direct ownership of 101,925 CX securities and 212,506 Ordinary Participation Certificates (CEMEX.CPO) listed on the BMV in Mexico, establishing his initial reported stake as an insider.

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^*

Martinez Merla Jaime

(Last) (First) (Middle)

AVENIDA RICARDO MARGAIN ZOZAYA 325

COLONIA VALLE DEL CAMPESTRE

(Street)

SAN PEDRO GARZA GARCIA O5 66265

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/17/2026

3. Issuer Name and Ticker or Trading Symbol
CEMEX SAB DE CV [ CX ]

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

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

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

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)
CX	101,925	D
Ordinary Participation Certificates (CEMEX.CPO) BMV MEXICO	212,506	D

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:

	Jaime Martinez Merla	03/17/2026
	** 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.
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FAQ

What does the CEMEX (CX) Form 3 for Jaime Martinez Merla report?

The Form 3 reports Jaime Martinez Merla’s existing holdings as an officer of CEMEX. It shows his direct ownership in CX securities and Ordinary Participation Certificates, establishing his initial insider ownership position as required when someone becomes a reporting insider.

How many CX securities does Jaime Martinez Merla directly hold according to the Form 3?

The Form 3 shows direct ownership of 101,925 CX securities. This figure reflects his reported position after the event that triggered insider reporting status, with no associated buy or sell transaction disclosed in this filing.

What are Jaime Martinez Merla’s holdings of CEMEX Ordinary Participation Certificates (CPOs)?

The filing lists direct holdings of 212,506 Ordinary Participation Certificates (CEMEX.CPO) traded on the BMV in Mexico. These CPOs are reported as part of his overall insider position in CEMEX, separate from the CX securities position.

Does the CEMEX (CX) Form 3 show any insider buying or selling activity?

No buy or sell activity is shown. The transactions are coded as holdings with unknown transaction codes, indicating the Form 3 is primarily a baseline disclosure of existing positions rather than a report of new purchases or sales.

What is Jaime Martinez Merla’s role at CEMEX according to the Form 3?

The Form 3 identifies Jaime Martinez Merla as an officer of CEMEX holding the title of Chief Comptroller. As a senior officer, he is required to report his beneficial ownership of CEMEX securities under insider reporting rules.