América Móvil (NYSE: AMX) director details vast Series B share stake

Rhea-AI Filing Summary

América Móvil director Carlos Slim Domit has filed an initial ownership report showing very large holdings of the company’s Series B Shares. The filing lists 2,325,617,791 Series B Shares held directly. It also shows additional indirect holdings through several Mexican trusts and companies associated with the Slim family.

One block of 17,742,515,522 Series B Shares is held by a control trust where Slim family members, including the reporting person, are participants and may be deemed to share beneficial ownership. Further Series B holdings are reported through Control Empresarial and Grupo Financiero Inbursa. In each case, he disclaims beneficial ownership and pecuniary interest beyond his economic interest in these entities.

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^*

Slim Domit Carlos

(Last) (First) (Middle)

PASEO DE LAS PALMAS 736

LOMAS DE CHAPULTEPEC

(Street)

CIUDAD DE MEXICO O5 11000

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
03/16/2026

3. Issuer Name and Ticker or Trading Symbol
AMERICA MOVIL SAB DE CV/ [ AMX ]

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

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

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)
Series B Shares	2,325,617,791	D
Series B Shares	17,742,515,522	I	By Control Trust(1)(2)
Series B Shares	10,933,355,873	I	By Control Empresarial Trust by Control Empresarial(3)
Series B Shares	196,009,735	I	By GFI(4)

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:

1. These securities are held by Banco Inbursa, S.A., Institucion de Banca Multiple, Grupo Financiero Inbursa, Trust No. F/0126 (the "Control Trust"), a trust organized under the laws of Mexico in which members of the Slim family, including the reporting person, are trust participants. Investment decisions by the Control Trust are made by a technical committee, which is composed of representatives of the Slim family, including the reporting person. As a result, the reporting person may be deemed to control the Control Trust and to share beneficial ownership of all Series B Shares held by the Control Trust.

2. The reporting person hereby disclaims having any pecuniary interests derived from the beneficial ownership of these securities except to the extent of the pecuniary interest derived by the reporting person's securities in the Control Trust, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

3. These securities are held by Control Empresarial de Capitales S.A. de C.V., a sociedad anonima de capital variable organized under the laws of Mexico ("Control Empresarial"). The Slim family, including the reporting person, are trust participants in Trust No. F/0125, a trust organized under the laws of Mexico, which holds all of the issued and outstanding voting equity securities of Control Empresarial (the "Control Empresarial Trust"), and the reporting person may be deemed to beneficially own the Series B Shares held by Control Empresarial. The reporting person hereby disclaims having any pecuniary interests derived from the beneficial ownership of these securities except to the extent of the pecuniary interest derived by the reporting person's interest in the Control Empresarial Trust, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

4. These securities are held by Grupo Financiero Inbursa, S.A.B. de C.V., a sociedad anonima bursatil de capital variable organized under the laws of Mexico ("GFI"). The Slim family, including the reporting person, beneficially own a majority of the outstanding voting equity securities of GFI, and the reporting person may be deemed to beneficially own the Series B held by GFI. The reporting person hereby disclaims having any pecuniary interests derived from the beneficial ownership of these securities except to the extent of the pecuniary interest derived by the reporting person's interest in GFI, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

	/S/VICTOR MANUEL GUTIERREZ LOPEZ, ATTORNEY-IN-FACT	03/16/2026
	** 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).
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FAQ

What does the América Móvil (AMX) Form 3 filing by Carlos Slim Domit show?

The Form 3 shows Carlos Slim Domit’s initial ownership in América Móvil Series B Shares, including 2,325,617,791 shares held directly and additional large indirect positions through Slim family-related trusts and entities, reflecting his significant economic exposure and governance role at the company.

How many América Móvil Series B Shares does Carlos Slim Domit hold directly and indirectly?

He reports 2,325,617,791 Series B Shares held directly. Indirectly, the filing lists large additional Series B positions held through a Mexican control trust, Control Empresarial and Grupo Financiero Inbursa, where he may be deemed a beneficial owner but disclaims full pecuniary interest.

What is the Control Trust mentioned in the América Móvil (AMX) Form 3 footnotes?

The Control Trust is a Mexican trust holding Series B Shares of América Móvil for Slim family participants, including Carlos Slim Domit. A technical committee with Slim family representatives makes investment decisions, so he may be deemed to control the trust and share beneficial ownership of its Series B holdings.

Why does Carlos Slim Domit disclaim beneficial ownership in parts of his América Móvil stake?

He disclaims having pecuniary interests in certain indirect holdings beyond his economic interest in the relevant trusts and entities. The filing states this should not be deemed an admission that he is the beneficial owner of all such securities for Section 16 or other purposes.

How is Control Empresarial involved in Carlos Slim Domit’s América Móvil (AMX) holdings?

Control Empresarial holds a large block of América Móvil Series B Shares. A separate Mexican trust owns all its voting equity, with Slim family participation, so Carlos Slim Domit may be deemed to beneficially own those shares while still disclaiming pecuniary interest beyond his stake in that trust.

What role does Grupo Financiero Inbursa (GFI) play in the América Móvil Form 3 positions?

GFI holds additional América Móvil Series B Shares reported as indirectly owned. The Slim family beneficially owns a majority of GFI’s voting equity, so Carlos Slim Domit may be deemed to beneficially own the shares GFI holds, while again limiting his claimed pecuniary interest to his stake in GFI.