TIGO / Millicom International Cellular S.A. - SEC-Einreichungen, Jahresbericht, Proxy Statement

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 May, 2026. Commission File Number: 001-38763 M

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 May, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United State

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 May, 2026. Commission File Number: 001-38763 M

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 May, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United State

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 April, 2026. Commission File Number: 001-38763

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 April, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 April, 2026. Commission File Number: 001-38763

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 April, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 April, 2026. Commission File Number: 001-38763

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 April, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 April, 2026. Commission File Number: 001-38763

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 April, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 March, 2026. Commission File Number: 001-38763

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 March, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the Registration Statement (Form S-8 No.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statement (No.

Execution Version 52185064v4 JOINDER TO AMENDMENT NO. 2 This Joinder Agreement (this “Joinder”), dated as of October 15, 2025, is entered into by Banco Bilbao Vizcaya Argentaria, S.A., London Branch (the “Joining Lender”) and the Borrower (defined be

bbvajoinder-amendmentno2 Execution Version 52185064v4 JOINDER TO AMENDMENT NO. 2 This Joinder Agreement (this “Joinder”), dated as of October 15, 2025, is entered into by Banco Bilbao Vizcaya Argentaria, S.A., London Branch (the “Joining Lender”) and the Borrower (defined below), and acknowledged by the Administrative Agent (defined below). Capitalized terms used but not defined herein shall have

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Bart Vanhaeren, certify that: 1.

statuts coordonnés de “MILLICOM INTERNATIONAL CELLULAR S.A.” - 1 | P a g e Maître Danielle KOLBACH, notaire à Junglinster (Grand-Duché de Luxembourg) “MILLICOM INTERNATIONAL CELLULAR S.A.” société anonyme siège social: 148-150, boulevard de la Pétrus

micsaupdatedaoa21may2025 statuts coordonnés de “MILLICOM INTERNATIONAL CELLULAR S.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Marcelo Benitez, certify that: 1.

B LOAN SUPPLEMENT July 18, 2025 Banco Latinoamericano de Comercio Exterior S.A. Ave. La Rotonda, Torre V. Business Park, Costa del Este, Panamá, Rep. de Panamá Ladies and Gentlemen: Reference is made to the loan and guaranty agreement between Telemov

es-tigoxloanandguarantya B LOAN SUPPLEMENT July 18, 2025 Banco Latinoamericano de Comercio Exterior S.

ENGLISH SUMMARY OF THE AMENDED AND RESTATED LOAN AGREEMENT, DATED OCTOBER 24, 2025, BETWEEN TELEFONICA MOVILES DEL URUGUAY S.A. AND BANCO SANTANDER S.A.1 On October 24, 2025, Telefonica Moviles del Uruguay S.A. (the “Borrower”) entered into an amende

telefonica-summaryloanag ENGLISH SUMMARY OF THE AMENDED AND RESTATED LOAN AGREEMENT, DATED OCTOBER 24, 2025, BETWEEN TELEFONICA MOVILES DEL URUGUAY S.

Millicom International Cellular S.A. Insider Trading Policy 2026 Legal - Governance [Enter name of policy] Page 2 of 15 TABLE OF CONTENTS 1 Purpose ......................................................................................................

mic-polxgovxinsidertradi Millicom International Cellular S.A. Insider Trading Policy 2026 Legal - Governance [Enter name of policy] Page 2 of 15 TABLE OF CONTENTS 1 Purpose ...................................................................................................................................................................... 3 2 Scope and Applicability ................................

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

As filed with the Securities and Exchange Commission on March 24, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

As filed with the Securities and Exchange Commission on March 24, 2026 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

ENGLISH SUMMARY OF THE LOAN AGREEMENT, DATED OCTOBER 6, 2025, BETWEEN GRUPO DE COMUNICACIONES DIGITALES, S.A., AND BAC INTERNATIONAL BANK INC.1 On October 6, 2025, Grupo de Comunicaciones Digitales, S.A. (the “Borrower”) entered into a loan agreement

gcdbac-summaryloanagreem ENGLISH SUMMARY OF THE LOAN AGREEMENT, DATED OCTOBER 6, 2025, BETWEEN GRUPO DE COMUNICACIONES DIGITALES, S.

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 February, 2026. Commission File Number: 001-38

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 February, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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 February, 2026. Commission File Number: 001-38

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 February, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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 February, 2026. Commission File Number: 001-38

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 February, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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, 2026. Commission File Number: 001-387

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, 2026. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United S

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 November, 2025. Commission File Number: 001-38

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 November, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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 November, 2025. Commission File Number: 001-38

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 November, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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 October, 2025. Commission File Number: 001-387

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 October, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United S

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 September, 2025. Commission File Number: 001-3

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 September, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United

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 August, 2025. Commission File Number: 001-3876

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 August, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United St

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 June, 2025. Commission File Number: 001-38763

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 June, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Stat

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 June, 2025. Commission File Number: 001-38763

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 June, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Stat

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 May, 2025. Commission File Number: 001-38763 M

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 May, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United State

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 May, 2025. Commission File Number: 001-38763 M

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 May, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United State

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 April, 2025. Commission File Number: 001-38763

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 April, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 April, 2025. Commission File Number: 001-38763

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 April, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

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 April, 2025. Commission File Number: 001-38763

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 April, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 8400 NW 36th Street, Suite 530 Doral, FL 33166 United Sta

AMENDMENT NO. 2 TO REVOLVING CREDIT AGREEMENT

Exhibit 4.4 AMENDMENT NO. 2 TO REVOLVING CREDIT AGREEMENT This AMENDMENT NO. 2 TO REVOLVING CREDIT AGREEMENT (this “Amendment and Extension”), dated as of August 22, 2024, is entered into by and among Millicom International Cellular S.A., a public limited liability company (société anonyme), organized and existing under the laws of the Grand Duchy of Luxembourg, with its registered office and prin

MILLICOM INTERNATIONAL CELLULAR S.A. as the Issuer $450,000,000 7.375% SENIOR NOTES DUE 2032 INDENTURE Dated as of April 2, 2024 CITIBANK, N.A., LONDON BRANCH as Trustee, Transfer Agent and Paying Agent CITIBANK, N.A., LONDON BRANCH as Registrar TABL

micsa202473752032indentu MILLICOM INTERNATIONAL CELLULAR S.A. as the Issuer $450,000,000 7.375% SENIOR NOTES DUE 2032 INDENTURE Dated as of April 2, 2024 CITIBANK, N.A., LONDON BRANCH as Trustee, Transfer Agent and Paying Agent CITIBANK, N.A., LONDON BRANCH as Registrar TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.01 Definitions. 1 Section 1.02 Other Defi

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Marcelo Benitez, certify that: 1.

As filed with the Securities and Exchange Commission on April 8, 2025 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

As filed with the Securities and Exchange Commission on April 8, 2025 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 8, 2025

April 8, 2025 Securities and Exchange Commission Washington, D.C. 20549 Ladies and Gentlemen: On March 12, 2024, we reported on the consolidated financial statements of Millicom International Cellular S.A. and its subsidiaries (collectively, the “Company”) as of December 31, 2023 and 2022, and for the three-year period ended December 31, 2023, and the effectiveness of internal control over financi

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the registration statement (No.

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the Registration Statement (Form S-8 No.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Bart Vanhaeren, certify that: 1.

AMENDMENT NO. 1 TO REVOLVING CREDIT AGREEMENT

Exhibit 4.3 AMENDMENT NO. 1 TO REVOLVING CREDIT AGREEMENT This AMENDMENT NO. 1 TO REVOLVING CREDIT AGREEMENT (this “Amendment”), dated as of June 26, 2023, is entered into by and among Millicom International Cellular S.A., a limited liability company (société anonyme), organized and existing under the laws of the Grand Duchy of Luxembourg, with its registered office and principal place of business

Millicom International Cellular S.A. Insider Trading Policy 2025 Legal - Governance [Enter name of policy] Page 2 of 14 Insider Trading Policy TABLE OF CONTENTS 1 Purpose ...............................................................................

Millicom International Cellular S.A. Insider Trading Policy 2025 Legal - Governance [Enter name of policy] Page 2 of 14 Insider Trading Policy TABLE OF CONTENTS 1 Purpose ...................................................................................................................................................................... 3 2 Scope and Applicability ..................................

- 1 - MILLICOM INTERNATIONAL CELLULAR S.A. Société anonyme Siège social : 2, rue du Fort Bourbon, L-1249 Luxembourg R.C.S. Luxembourg : B40630 CONSOLIDATED ARTICLES OF ASSOCIATION as at May 23th, 2024 STATUTS COORDONNES à la date du 23 mai 2024 - CON

- 1 - MILLICOM INTERNATIONAL CELLULAR S.A. Société anonyme Siège social : 2, rue du Fort Bourbon, L-1249 Luxembourg R.C.S. Luxembourg : B40630 CONSOLIDATED ARTICLES OF ASSOCIATION as at May 23th, 2024 STATUTS COORDONNES à la date du 23 mai 2024 - CONSTITUTION du 16 juin 1992, suivant acte reçu par Maître Joseph KERSCHEN, alors notaire de résidence à Luxembourg-Eich, publié au Mémorial C, Recueil d

FINAL SALE AND PURCHASE AGREEMENT BETWEEN SBA TELECOMMUNICATIONS LLC, AND MILLICOM INTERNATIONAL CELLULAR S.A. IN THE PRESENCE OF LATI INTERNATIONAL S.A. dated as of October 28, 2024 i TABLE OF CONTENTS Page ARTICLE I PURCHASE AND SALE OF THE ACQUIRE

FINAL SALE AND PURCHASE AGREEMENT BETWEEN SBA TELECOMMUNICATIONS LLC, AND MILLICOM INTERNATIONAL CELLULAR S.

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 March, 2025. Commission File Number: 001-38763

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 March, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Grand

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 February, 2025. Commission File Number: 001-38

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 February, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gr

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, 2025. Commission File Number: 001-387

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, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gra

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, 2025. Commission File Number: 001-387

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, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gra

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, 2025. Commission File Number: 001-387

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, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gra

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, 2025. Commission File Number: 001-387

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, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gra

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, 2025. Commission File Number: 001-387

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, 2025. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gra

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 December, 2024. Commission File Number: 001-38

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 December, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gr

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 December, 2024. Commission File Number: 001-38

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 December, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gr

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 December, 2024. Commission File Number: 001-38

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 December, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la Pétrusse L-2330 Luxembourg Gr

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 November, 2024. Commission File Number: 001-38

6-K 1 dp2214206k.htm FORM 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 November, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 148-150, Boulevard de la

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 November, 2024. Commission File Number: 001-38

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 November, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 November, 2024. Commission File Number: 001-38

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 November, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 October, 2024. Commission File Number: 001-387

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 October, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 October, 2024. Commission File Number: 001-387

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 October, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 October, 2024. Commission File Number: 001-387

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 October, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 October, 2024. Commission File Number: 001-387

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 October, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

Joint Filing Agreement

EX-99.1 2 tm2425822d1ex1.htm EXHIBIT 1 EXHIBIT 1 Joint Filing Agreement In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including any and all amendments thereto) with respect to the Common Shares, par value $1.50 per share, of Millicom International Cellular S.A.

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SC 13D/A 1 tm2425822d1sc13da.htm SC 13D/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 17)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel

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 September, 2024. Commission File Number: 001-3

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 September, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 September, 2024. Commission File Number: 001-3

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 September, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 16)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

[LETTERHEAD] SDR PURCHASE MANDATE Dated 6th September, 2024

EX-99.16 2 tm2423603d1ex16.htm EXHIBIT 16 Exhibit 16 [LETTERHEAD] SDR PURCHASE MANDATE Dated 6th September, 2024 BY AND BETWEEN: ATLAS LUXCO S.À R.L., a Luxembourg limited liability company, having its registered office at 53, boulevard Royal, L-2449 Luxembourg, Grand Duchy of Luxembourg, registered with the Trade and Companies Register of Luxembourg under number B274990, uniquely identified by it

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 9) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 9) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

[Signature pages follow]

Exhibit (a)(1)(T) EXECUTION VERSION To: Crédit Agricole Corporate and Investment Bank as Agent Attn: Veronica Bacca Ruiz, Herve Dufour Email: veronica.

Dated 5 August 2024 SENIOR FACILITIES AGREEMENT ATLAS LUXCO S.À R.L. (as the Company) arranged by BNP PARIBAS CITIBANK, N.A., LONDON BRANCH CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK J.P. MORGAN SE SOCIÉTÉ GÉNÉRALE (as Mandated Lead Arrangers) CRÉ

Exhibit (a)(1)(S) EXECUTION VERSION Dated 5 August 2024 SENIOR FACILITIES AGREEMENT ATLAS LUXCO S.

[Signature pages follow]

EX-15 3 tm2422509d2ex15.htm EXHIBIT 15 Exhibit 15 EXECUTION VERSION To: Crédit Agricole Corporate and Investment Bank as Agent Attn: Veronica Bacca Ruiz, Herve Dufour Email: [email protected], [email protected] Date: 9 August 2024 Project Meria: Senior Facilities Agreement Amendment Letter 1. Introduction 1.1 We refer to the senior facilities agreement dated 5 August 2024 between

Dated 5 August 2024 SENIOR FACILITIES AGREEMENT ATLAS LUXCO S.À R.L. (as the Company) arranged by BNP PARIBAS CITIBANK, N.A., LONDON BRANCH CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK J.P. MORGAN SE SOCIÉTÉ GÉNÉRALE (as Mandated Lead Arrangers) CRÉ

EX-14 2 tm2422509d2ex14.htm EXHIBIT 14 Exhibit 14 EXECUTION VERSION Dated 5 August 2024 SENIOR FACILITIES AGREEMENT ATLAS LUXCO S.À R.L. (as the Company) arranged by BNP PARIBAS CITIBANK, N.A., LONDON BRANCH CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK J.P. MORGAN SE NATIXIS SOCIÉTÉ GÉNÉRALE (as Mandated Lead Arrangers) with CRÉDIT AGRICOLE CORPORATE AND INVESTMENT BANK (as Agent) and CRÉDIT AGRI

-END-

Exhibit (a)(5)(T) Millicom announces expiration of consent solicitations Luxembourg, August 23, 2024 – Millicom International Cellular S.

-END-

Exhibit (a)(5)(S) Millicom announces extension of consent solicitations Luxembourg, August 15, 2024 – Millicom International Cellular S.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 4) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 4) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Person Filing Statement) Common Shares, par value $1.50 per share (Title of Class of S

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 15)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

Atlas Luxco S.à r.l. completes its public offers to the shareholders of Millicom and successfully increases its ownership position in Millicom reaching 40.42 per cent of Millicom’s share capital and voting rights

Exhibit (a)(1)(R) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 8) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 8) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 3) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 3) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Person Filing Statement) Common Shares, par value $1.50 per share (Title of Class of S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 7) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 7) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 6) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 6) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

Atlas waives acceptance level and regulatory approvals conditions and extends offer period as required under applicable laws until August 22, 2024

Exhibit (a)(1)(Q) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

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 August, 2024. Commission File Number: 001-3876

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 August, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 5) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 5) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

Atlas responds to recommendation of the Independent Committee of the Board of Directors of Millicom International Cellular S.A.

Exhibit (a)(1)(P) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

Atlas Luxco S.à r.l. publishes a supplement to the offer document pursuant to the Swedish Offer regarding its public offers to the shareholders of Millicom International Cellular S.A.

Exhibit (a)(1)(N) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

Atlas Luxco S.à r.l. publishes a supplement to the offer document pursuant to the Swedish Offer regarding its public offers to the shareholders of Millicom International Cellular S.A.

Exhibit (a)(1)(O) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 4) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

SC TO-T/A 1 tm2421391d1sctota.htm SC TO-T/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 4) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Af

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 2) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Person Filing Statement) Common Shares, par value $1.50 per share (Title of Class of S

NORDEA BANK ABP, FILIAL I SVERIGE Corporate Finance

Exhibit (a)(5)(N) Independent Committee of the Board of Directors Millicom International Cellular S.

The independent committee of the Board of Directors of Millicom (Tigo) continues to believe the public cash offers made by Atlas Luxco S.a r.l. significantly undervalue Millicom's shares and SDRs and reiterates recommendation not to tender (issued pu

Exhibit (a)(2)(B) The independent committee of the Board of Directors of Millicom (Tigo) continues to believe the public cash offers made by Atlas Luxco S.

Millicom’s (Tigo) Independent Committee Reviewing Revised Tender Offers from Atlas Luxco S.à r.l

Exhibit 99.1 Millicom’s (Tigo) Independent Committee Reviewing Revised Tender Offers from Atlas Luxco S.à r.l Luxembourg, August 06, 2024 – On August 2, 2024, Atlas Luxco S.à r.l (“Atlas”) announced that it has increased the offer price in its tender offers to acquire all outstanding common shares and SDRs in Millicom International Cellular S.A. (“Millicom”, and all such common shares and SDRs col

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. 1) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Person Filing Statement) Common Shares, par value $1.50 per share (Title of Class of S

CALCULATION OF FILING FEE TABLES Schedule TO (Form Type) Millicom International Cellular S.A. (Name of Subject Company (Issuer)) Atlas Luxco S.à r.l. (Offeror) a wholly owned subsidiary of Atlas Investissement S.A.S. (Affiliate of Offeror) a majority

Exhibit 107 CALCULATION OF FILING FEE TABLES Schedule TO (Form Type) Millicom International Cellular S.

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 14)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

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 August, 2024. Commission File Number: 001-3876

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 August, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

Atlas Luxco S.à r.l. publishes a supplement to the offer document pursuant to the Swedish Offer regarding its public offers to the shareholders of Millicom International Cellular S.A.

Exhibit (a)(1)(K) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 3) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 3) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

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 August, 2024. Commission File Number: 001-3876

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 August, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 2) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 2) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

Atlas responds to announcement by Millicom regarding the exploration of potential acquisitions in Colombia

Exhibit (a)(1)(L) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

Atlas Luxco S.à r.l. publishes a supplement to the offer document pursuant to the Swedish Offer regarding its public offers to the shareholders of Millicom International Cellular S.A.

Exhibit (a)(1)(J) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

Atlas Luxco S.à r.l. increases the price to USD 25.75 per common share and per SDR in its public offers to the shareholders of Millicom International Cellular S.A.

Exhibit (a)(1)(M) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

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 July, 2024. Commission File Number: 001-38763

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 July, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 July, 2024 Commission File Number: 001-38763 M

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 July, 2024 Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Lu

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 13)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

Atlas Investissement VALIDATION OF ACCESS RIGHTS Due to legal restrictions, the information on this part of the website is not directed to, or accessible for, certain persons. We therefore kindly ask you to review the following information and provid

Exhibit (a)(1)(I) Atlas Investissement Validation of Access Rights Due to legal restrictions, the information on this part of the website is not directed to, or accessible for, certain persons.

Atlas responds to recommendation of the Independent Committee of the Board of Directors of Millicom International Cellular S.A.

Exhibit (a)(1)(G) Press release This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pur

Exhibit (a)(1)(H) This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 1) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 (Amendment No. 1) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidi

(issued pursuant to the Swedish Takeover Rules)

Exhibit (a)(2)(A) The independent committee of the Board of Directors of Millicom (Tigo) unanimously recommends that shareholders and SDR holders not accept the public cash offers made by Atlas Luxco S.

Millicom’s (Tigo) Independent Committee Issued Recommendation Under U.S. and Swedish Rules That Shareholders and SRD Holders Reject the Tender Offers Made by Atlas Luxco S.à r.l

Exhibit (a)(5)(A) Millicom’s (Tigo) Independent Committee Issued Recommendation Under U.

1

Exhibit (e)(1) DIRECTORS, SENIOR MANAGEMENT AND EMPLOYEES Directors and Senior Management (including Share Ownership) See "Corporate GovernanceBoard GovernanceBoard Profile: Skills and Experience" for more information on our directors and senior management.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14D-9 SOLICITATION/RECOMMENDATION STATEMENT UNDER SECTION 14(d)(4) OF THE SECURITIES EXCHANGE ACT OF 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company) MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Person Filing Statement) Common Shares, par value $1.50 per share (Title of Class of Securities) L6388F1

NORDEA BANK ABP, FILIAL I SVERIGE Corporate Finance

Exhibit (a)(5)(C) Independent Committee of the Board of Directors Millicom International Cellular S.

LETTER

July 10, 2024 Denis Klimentchenko Partner, Skadden, Arps, Slate, Meagher & Flom (UK) LLP MILLICOM INTERNATIONAL CELLULAR SA 22 Bishopsgate London, EC2N 4BQ Re: MILLICOM INTERNATIONAL CELLULAR SA Schedule TO-T filed by Atlas Investissement et al.

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 12)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES MILLICOM INTERNATIONAL CELLULAR S.A. USD 24.00 PER COMMON SHARE AND USD 24.00 PER SWEDISH DEPOSITARY RECEIPT PURSUANT TO THE O

 Exhibit (a)(1)(D) OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES OF MILLICOM INTERNATIONAL CELLULAR S.

3 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 Nov-22 Feb-23 May-23 Aug-23 Nov-23 Feb-24 May-24 Share price performance $11.4 $23.5 In $ “The chance of a bid for a majority or all shares has increased, in our view” 13 OCTOBER 2023 “If Mr. Niel reache

Exhibit (c)(1) Project Meria 29th June 2024 2 Implied share price ($) Comments Spot on 22/05/2024 52-week High/Low 12M, 6M, 3M, 1M VWAP Discounted broker target prices Atlas' consensus-based projections xEBITDAaL 2023A xEBITDAaL 2024E xEBITDAaL 2025E TraTra ding multipl esing multipl es xEBITDAaL LTM Share price ($) 15.

OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES MILLICOM INTERNATIONAL CELLULAR S.A. FOR USD 24.00 PER COMMON SHARE AND USD 24.00 PER SWEDISH DEPOSITARY RECEIPT BY ATLAS LUXC

TABLE OF CONTENTS  Exhibit (a)(1)(A) OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES OF MILLICOM INTERNATIONAL CELLULAR S.

This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pur

Exhibit (a)(1)(F) This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issue

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE TO Tender Offer Statements under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) ATLAS LUXCO S.À R.L. (Offeror) a wholly-owned subsidiary of ATLAS INVESTISSEMENT (Affiliate of Offeror) a majority-owned subsidiary of NJJ HOLDING

CALCULATION OF FILING FEE TABLES Schedule TO (Form Type) Millicom International Cellular S.A. (Name of Subject Company (Issuer)) Atlas Luxco S.à r.l. (Offeror) a wholly owned subsidiary of Atlas Investissement S.A.S. (Affiliate of Offeror) a majority

Exhibit 107 CALCULATION OF FILING FEE TABLES Schedule TO (Form Type) Millicom International Cellular S.

Appendix A Agreed Form Interim Facilities Agreement

Exhibit (b) AGREED FORM To: Atlas Luxco S.à r.l., a private limited company (société à responsabilité limitée) incorporated and existing under the laws of Luxembourg, having its registered office at 53, Boulevard Royal, L-2449 Luxembourg and registered with the Luxembourg Trade and Companies Register (Registre de commerce et des sociétés, Luxembourg) under number B274990 (the "Company" or "you") A

OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES MILLICOM INTERNATIONAL CELLULAR S.A. USD 24.00 PER COMMON SHARE AND USD 24.00 PER SWEDISH DEPOSITARY RECEIPT PURSUANT TO THE O

 Exhibit (a)(1)(C) OFFERS TO PURCHASE FOR CASH ALL OF THE OUTSTANDING COMMON SHARES AND SWEDISH DEPOSITARY RECEIPTS REPRESENTING COMMON SHARES OF MILLICOM INTERNATIONAL CELLULAR S.

1CERTIFICATE INFORMATION:Certificate No.SharesCertificate No.SharesShares from other certificates held:V53231-TBDLETTER OF TRANSMITTAL (877) 830-4936 (toll free) www.shareholder.broadridge.comBroadridge Corporate Issuer SolutionsINDICATE IN BOX (1) A

 Exhibit (a)(1)(B) 1CERTIFICATE INFORMATION:Certificate No.SharesCertificate No.SharesShares from other certificates held:V53231-TBDLETTER OF TRANSMITTAL (877) 830-4936 (toll free) www.shareholder.broadridge.comBroadridge Corporate Issuer SolutionsINDICATE IN BOX (1) AND (2) THE CERTIFICATE NUMBERS/SHARES AND OR BOOK ENTRY SHARES TO BE TENDERED PURSUANT TO THE OFFER TO PURCHASE. MARK ONLY ONE BOX.

Atlas Luxco S.à r.l. The Board of Managers

Exhibit (a)(1)(E) This announcement is not an offer, whether directly or indirectly, in Australia, Belarus, Canada, Hong Kong, Japan, New Zealand, Singapore, South Africa or Russia or in any other jurisdiction where such offer would be prohibited by applicable law pursuant to legislation, restrictions and regulations in the relevant jurisdiction.

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 June, 2024. Commission File Number: 001-38763

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 June, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 May, 2024. Commission File Number: 001-38763 M

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 May, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Lu

Atlas Investissement statement regarding media reports

Exhibit 99.1 Press Release NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION IN, INTO OR FROM ANY JURISDICTION WHERE TO DO SO WOULD CONSTITUTE A VIOLATION OF THE RELEVANT LAWS OR REGULATIONS OF SUCH JURISDICTION. THIS IS NOT A PUBLIC OFFER TO THE HOLDERS OF SWEDISH DEPOSITORY RECEIPTS OR SHARES IN MILLICOM. Atlas Investissement statement regarding media reports 23 May 2024, Paris // In light of media r

TIGO / Millicom International Cellular S.A. / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 11)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

1

EX-99.5 2 tm2415353d1ex5.htm EXHIBIT 5 Exhibit 5 To the Board of Directors of Millicom International Cellular S.A. Attention: Mauricio Ramos Chairman of the Board of Directors May 23rd, 2024 STRICTLY PRIVATE & CONFIDENTIAL INSIDE INFORMATION Dear Mauricio, Dear Directors, Atlas Investissement or an affiliate thereof (“Atlas” or “we”) has been working on a potential all-cash acquisition of all the

1

Exhibit 99.2 To the Board of Directors of Millicom International Cellular S.A. Attention: Mauricio Ramos Chairman of the Board of Directors May 23rd, 2024 STRICTLY PRIVATE & CONFIDENTIAL INSIDE INFORMATION Dear Mauricio, Dear Directors, Atlas Investissement or an affiliate thereof (“Atlas” or “we”) has been working on a potential all-cash acquisition of all the shares that we do not currently own

* * * [Intentionally left blank] Schedule 1 Conditions precedent to the effective date

EX-99.6 3 tm2415353d1ex6.htm EXHIBIT 6 Exhibit 6 CONFIDENTIAL From: Atlas Luxco S.à r.l. 53, boulevard Royal L-2449 Luxembourg Grand Duchy of Luxembourg RCS Luxembourg: B274990 (the "Company") To: [*****] in its capacity as Facility Agent under the Facility Agreement (as defined below) Dated: 7 March 2024 Dear Sirs, Facility Agreement - Amendment request letter 1. Context We refer to the facility

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE TO-C (Rule 14d-100) TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR (13)(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subj

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE TO-C (Rule 14d-100) TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR (13)(E)(1) OF THE SECURITIES EXCHANGE ACT OF 1934 MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Subject Company (Issuer)) Atlas Luxco S.à r.l. a wholly owned subsidiary of Atlas Investissement (Names of Filing Persons (Offerors)) Common Shares, par v

* * * [Intentionally left blank]

EX-99.7 4 tm2415353d1ex7.htm EXHIBIT 7 Exhibit 7 CONFIDENTIAL From:      Atlas Luxco S.à r.l. 53, boulevard Royal L-2449 Luxembourg Grand Duchy of Luxembourg RCS Luxembourg: B274990 (the "Company") To:           [*****] in its capacity as Facility Agent under the Facility Agreement (as defined below) Dated: 13 March 2024 Dear Sirs, Facility Agreement - Amendment letter 1. Context We refer to the f

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 May, 2024. Commission File Number: 001-38763 M

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 May, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Lu

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 April, 2024. Commission File Number: 001-38763

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 April, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 April, 2024. Commission File Number: 001-38763

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 April, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 April, 2024. Commission File Number: 001-38763

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 April, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 April, 2024. Commission File Number: 001-38763

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 April, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 March, 2024. Commission File Number: 001-38763

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 March, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 March, 2024. Commission File Number: 001-38763

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 March, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

Execution Version US$225,000,000 CREDIT AND GUARANTY AGREEMENT dated as of September 12, 2022 among TELEMÓVIL EL SALVADOR, S.A. DE C.V. and TELEFONÍA CELULAR DE NICARAGUA, S.A., as Borrowers, MILLICOM INTERNATIONAL CELLULAR, S.A., as Guarantor, THE L

Execution Version US$225,000,000 CREDIT AND GUARANTY AGREEMENT dated as of September 12, 2022 among TELEMÓVIL EL SALVADOR, S.

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: (1) Registration Statement (Form F-3 No.

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 March, 2024. Commission File Number: 001-38763

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 March, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Mauricio Ramos, certify that: 1.

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Sheldon Bruha, certify that: 1.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

Millicom International Cellular S.A. Code: <XXX-XXX-XXX> e.g., MIC-POL-GOV <Policy Name> - ESP (if Spanish version) Version: <XXX> Effective Date: DD-MMM-YYYY Next Review Date: DD-MMM-YYYY Classification: <Internal, Public, Confidential> Document Typ

Millicom International Cellular S.A. Code: e.g., MIC-POL-GOV - ESP (if Spanish version) Version: Effective Date: DD-MMM-YYYY Next Review Date: DD-MMM-YYYY Classification: Document Type: Policy Policy Owner: #96962416v6 Millicom International Cellular S.A. Compensation Recoupment Policy 2023 Human Resources - Copyright © 2023 Millicom International Cellular S.A., all rights reserved. Page 1 of 8 #9

As filed with the Securities and Exchange Commission on March 12, 2024 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

As filed with the Securities and Exchange Commission on March 12, 2024 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

LETTER

United States securities and exchange commission logo March 4, 2024 Sheldon Bruha Chief Financial Officer Millicom International Cellular S.

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 March, 2024 Commission File Number: 001-38763

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 March, 2024 Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 February, 2024. Commission File Number: 001-38

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 February, 2024. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / DODGE & COX - SC 13G/A Passive Investment

SC 13G/A 1 d758878dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 2 )* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Swedish Depository Receipts, which convert into Common Stock (Title of Class of Securities) L6388F110 (CUSIP Number) December 31, 2023 (Date of Event Which Requ

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 10)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Te

December 26, 2023

December 26, 2023 Ms. Megan Akst (Senior Staff Accountant) Ms. Christine Dietz (Senior Staff Accountant) U.S. Securities and Exchange Commission Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Fiscal Year Ended December 31, 2022 Filed February 28, 2023 File No. 001-38763 Dear Ms. Akst and Ms. Dietz, This letter is submitted in response to the comments of the Staff

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 December, 2023. Commission File Number: 001-38

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 December, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

LETTER

United States securities and exchange commission logo December 14, 2023 Sheldon Bruha Chief Financial Officer Millicom International Cellular S.

November 17, 2023

November 17, 2023 Ms. Megan Akst (Senior Staff Accountant) Ms. Christine Dietz (Senior Staff Accountant) U.S. Securities and Exchange Commission Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Fiscal Year Ended December 31, 2022 Filed February 28, 2023 File No. 001-38763 Dear Ms. Akst and Ms. Dietz, This letter is submitted in response to the comments of the Staff

Explanatory Note

Explanatory Note This amended response letter dated as of November 17, 2023, is being submitted solely for the purpose of updating the graph in our response to Comment 2.

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SC 13D/A 1 tm2330069d1sc13da.htm SC 13D/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 9)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel:

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 October, 2023. Commission File Number: 001-387

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 October, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 October, 2023. Commission File Number: 001-387

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 October, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

VIA EDGAR

VIA EDGAR October 23, 2023 Ms. Megan Akst, Senior Staff Accountant Ms. Christine Dietz, Senior Staff Accountant Division of Corporation Finance Office of Technology U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Year Ended December 31, 2022 File No. 001-38763 Dear Ms. Akst and Ms. Dietz: On behalf of our

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 8)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

VIA EDGAR

VIA EDGAR September 25, 2023 Ms. Megan Akst, Senior Staff Accountant Ms. Christine Dietz, Senior Staff Accountant Division of Corporation Finance Office of Technology U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Year Ended December 31, 2022 File No. 001-38763 Dear Ms. Akst and Ms. Dietz: On behalf of ou

LETTER

United States securities and exchange commission logo September 20, 2023 Sheldon Bruha Chief Financial Officer Millicom International Cellular S.

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 August, 2023. Commission File Number: 001-3876

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 August, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SC 13D/A 1 tm2324770d1sc13da.htm SC 13D/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 7)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel:

August 18, 2023

August 18, 2023 Ms. Megan Akst (Senior Staff Accountant) Ms. Christine Dietz (Senior Staff Accountant) U.S. Securities and Exchange Commission Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Fiscal Year Ended December 31, 2022 Filed February 28, 2023 File No. 001-38763 Dear Ms. Akst and Ms. Dietz, This letter is submitted in response to the comments of the Staff o

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 July, 2023. Commission File Number: 001-38763

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 July, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 July, 2023. Commission File Number: 001-38763

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 July, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

ATLAS LUXCO S.À R.L. as Borrower ATLAS INVESTISSEMENT as Holdco as Lenders acting as Facility Agent, Security Agent and the Calculation Agent acting as Mandated Lead Arrangers

EXHIBIT 3 EXECUTION VERSION 19 July 2023 ATLAS LUXCO S.À R.L. as Borrower and ATLAS INVESTISSEMENT as Holdco and [*****] and [*****] and [*****] and [*****] as Lenders with [*****] acting as Facility Agent, Security Agent and the Calculation Agent [*****] acting as Mandated Lead Arrangers AMENDMENT AND RESTATEMENT AGREEMENT related to a Facility Agreement dated 20 February 2023 CONTENTS Clause Pag

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 6)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

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 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2023. Commission File Number: 001-387

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 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

VIA EDGAR

VIA EDGAR July 17, 2023 Ms. Megan Akst, Senior Staff Accountant Ms. Christine Dietz, Senior Staff Accountant Division of Corporation Finance Office of Technology U.S. Securities and Exchange Commission 100 F Street, N.E. Washington, D.C. 20549 Re: Millicom International Cellular S.A. Form 20-F for the Year Ended December 31, 2022 File No. 001-38763 Dear Ms. Akst and Ms. Dietz: On behalf of our cli

LETTER

United States securities and exchange commission logo July 14, 2023 Sheldon Bruha Chief Financial Officer Millicom International Cellular S.

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 June, 2023. Commission File Number: 001-38763

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 June, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 June, 2023. Commission File Number: 001-38763

6-K 1 dp1953806k.htm FORM 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 June, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-12

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 5)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

[LETTER HEAD] SDR PURCHASE MANDATE Dated May 31, 2023

EXHIBIT 3 [LETTER HEAD] SDR PURCHASE MANDATE Dated May 31, 2023 BY AND BETWEEN: ATLAS LUXCO S.

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 May, 2023. Commission File Number: 001-38763 M

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 May, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Lu

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 4)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 3)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

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 April, 2023. Commission File Number: 001-38763

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 April, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 2)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

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 April, 2023. Commission File Number: 001-38763

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 April, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 April, 2023. Commission File Number: 001-38763

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 April, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D/A Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. 1)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tel

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 March, 2023. Commission File Number: 001-38763

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 March, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Mauricio Ramos, certify that: 1.

Consent of Independent Registered Public Accounting Firm

Consent of Independent Registered Public Accounting Firm We consent to the incorporation by reference in the following Registration Statements: 1.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

EX-1.1

millicominternationalcel

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Sheldon Bruha, certify that: 1.

As filed with the Securities and Exchange Commission on February 28, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 20-F

As filed with the Securities and Exchange Commission on February 28, 2023 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code)

CERTIFICATION Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), the undersigned officer of Millicom International Cellular S.

EXECUTION VERSION SHARE PURCHASE AGREEMENT SHARE PURCHASE AGREEMENT (this “Agreement”) dated as of June 29, 2022 by and among Millicom LIH, S.A., a Luxembourg company (“Millicom” or “Buyer”), Medios de Comunicación Ltd., a British Virgin Islands comp

a414putright-sharepurcha EXECUTION VERSION SHARE PURCHASE AGREEMENT SHARE PURCHASE AGREEMENT (this “Agreement”) dated as of June 29, 2022 by and among Millicom LIH, S.

Dated ________________ 2023

Exhibit 2 Execution Version Dated 2023 ATLAS LUXCO S.À R.L. as Borrower and ATLAS INVESTISSEMENT as Holdco and [*****] and [*****] [*****] [*****] [*****] [*****] [*****] [*****] with [*****] [*****] [*****] [*****] FACILITY AGREEMENT CONTENTS Clause Page 1. Definitions and Interpretations 2 2. The Facility  30 3. Purpose 30 4. Conditions of Utilisation 31 5. Utilisation 31 6. Repayment And Maturi

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SC 13D Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) Denis Klimentchenko Skadden, Arps, Slate, Meagher & Flom (UK) LLP 22 Bishopsgate London, EC2N 4BQ Tel: +44(0)20 7519 7289 (Name, Address and Tele

Joint Filing Agreement

EXHIBIT 1 Joint Filing Agreement In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including any and all amendments thereto) with respect to the Common Shares, par value $1.

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 February, 2023. Commission File Number: 001-38

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 February, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

TIGO / Millicom International Cellular S.A. / SOUTHEASTERN ASSET MANAGEMENT INC/TN/ - MILLICOM INTERNATIONAL CELLULAR SA - 13G AMENDMENT Passive Investment

SC 13G/A 1 tigo13g1.txt MILLICOM INTERNATIONAL CELLULAR SA - 13G AMENDMENT SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Millicom International Cellular S.A. (Name of Issuer) Common Stock (Title of Class and Securities) B00L2M8 (CUSIP Number of Class of Securities) December 31, 2022 (Date of Event which Requires

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / DODGE & COX - SC 13G/A Passive Investment

SC 13G/A 1 d443461dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. 1)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Swedish Depository Receipts, which convert into Common Stock (Title of Class of Securities) L6388F110 (CUSIP Number) December 31, 2022 (Date of Event Which Requi

JOINT FILING AGREEMENT

EX-99 2 exa.htm EXHIBIT A - JOINT FILING AGREEMNT EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Shares, par value $1.50 per share, of Millicom International Ce

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SCHEDULE 13G, AMENDMENT NO. 1 Passive Investment

SC 13G/A 1 sc13ga1.htm SCHEDULE 13G, AMENDMENT NO. 1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Titles of Class of Securities) L6388F110 (CUSIP Number) February 7, 2023 (Date of Event Which Requires Filing of this Statement) Che

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 February, 2023. Commission File Number: 001-38

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 February, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / SG Americas Securities, LLC - 13G AMENDMENT TXT Passive Investment

SC 13G/A 1 Millicom International 13G/A 02062023.txt 13G/A FOR SG February 10, 2023 UNITED STATES SECURITIES EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.1) Millicom International Cellular S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) February 6, 2023 (Date of Event which Requires Fil

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 February, 2023. Commission File Number: 001-38

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 February, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / SG Americas Securities, LLC - SG FORM 13G - MILLICOM INTERNATIONAL CELLULAR TXT DOC Passive Investment

SC 13G 1 Millicom International 13g 12312022.txt 13G FOR SG DECEMBER 31, 2022 UNITED STATES SECURITIES EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Millicom International Cellular S.A. (Name of Issuer) Common Shares (Title of Class of Securities) L6388F110 (CUSIP Number) December 31, 2022 (Date of Event which Requires Filing of this Statement) C

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, 2023. Commission File Number: 001-387

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, 2023. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 November, 2022. Commission File Number: 001-38

6-K 1 dp1846106k.htm FORM 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 November, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon,

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 November, 2022. Commission File Number: 001-38

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 November, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 November, 2022. Commission File Number: 001-38

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 November, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

JOINT FILING AGREEMENT

EXHIBIT A JOINT FILING AGREEMENT In accordance with Rule 13d-1(k) of the Securities Exchange Act of 1934, as amended, the undersigned agree to the joint filing on behalf of each of them of a Statement on Schedule 13G (including any and all amendments thereto) with respect to the Common Shares, par value $1.

LU:MIICF / Millicom International Cellular SA - 6.25% 2029-03-25 / Atlas Investissement - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* MILLICOM INTERNATIONAL CELLULAR S.A. (Name of Issuer) Common Shares (Titles of Class of Securities) L6388F110 (CUSIP Number) October 27, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

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 November, 2022. Commission File Number: 001-38

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 November, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 October, 2022. Commission File Number: 001-387

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 October, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 October, 2022. Commission File Number: 001-387

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 October, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy o

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 September, 2022. Commission File Number: 001-3

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 September, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 September, 2022 Commission File Number: 001-38

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 September, 2022 Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 September, 2022. Commission File Number: 001-3

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 September, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy

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 August, 2022. Commission File Number: 001-3876

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 August, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of

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 July, 2022. Commission File Number: 001-38763

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 July, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 July, 2022. Commission File Number: 001-38763

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 July, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 June, 2022. Commission File Number: 001-38763

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 June, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 June, 2022. Commission File Number: 001-38763

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 June, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

FREE WRITING PROSPECTUS

FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 NOT FOR RELEASE, PUBLICATION OR DISTRIBUTION DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, IN OR INTO AUSTRALIA, CANADA, HONG KONG OR SINGAPORE OR ANY OTHER JURISDICTION WHERE SUCH RELEASE, PUBLICATION OR DISTRIBUTION WOULD BE UNLAWFUL OR WOULD REQUIRE ADDITIONAL DOCUMENTS TO BE PREPARED OR REGISTERED OR REQUIR

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 June, 2022. Commission File Number: 001-38763

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 June, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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 June, 2022. Commission File Number: 001-38763

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 June, 2022. Commission File Number: 001-38763 MILLICOM INTERNATIONAL CELLULAR S.A. (Exact Name of Registrant as Specified in Its Charter) 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of L

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FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 Subscription for SDRs with subscription rights Rights issue 2022 Send the subscription form to: Nordea Bank Abp, filial i Sverige Issuer Services, L850 SE-105 71 Stockholm, Sweden Email: [email protected] Subscription period: 27 May ? 13 June 2022 ID-number: This subscription form shall only be used

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FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 Subscription for SDRs with subscription rights Rights issue 2022 Send the subscription form to: Nordea Bank Abp, filial i Sverige Issuer Services, L850 SE-105 71 Stockholm, Sweden Subscription period: 27 May ? 13 June 2022 ID-number: This subscription form shall only be used if you have bought, sold or transfe

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FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 Subscription for SDRs without subscription rights Rights issue 2022 Send the subscription form to: Nordea Bank Abp, filial i Sverige Issuer Services, L850 SE-105 71 Stockholm, Sweden Subscription period: 27 May ? 13 June 2022 Payment: SDRs subscribed for and allotted must be paid for according to the instructi

MILLICOM INTERNATIONAL CELLULAR S.A. NOTICE TO SHAREHOLDERS WHO ARE ACTING AS NOMINEES Up to 70,357,088 Common Shares Issuable Upon Exercise of Transferable Rights

FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 MILLICOM INTERNATIONAL CELLULAR S.A. NOTICE TO SHAREHOLDERS WHO ARE ACTING AS NOMINEES Up to 70,357,088 Common Shares Issuable Upon Exercise of Transferable Rights May 23, 2022 Dear Shareholder: Enclosed for your consideration is a prospectus supplement, dated May 18, 2022 (as amended and supplemented from tim

7 for 10 Rights Offer at SEK 106.00 per new SDR or USD 10.61 per new Share

FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 Dear owner in Millicom, 7 for 10 Rights Offer at SEK 106.00 per new SDR or USD 10.61 per new Share 1. Introduction: On November 12, 2021, Millicom announced the acquisition of the remaining 45% equity stake in our joint venture business in Guatemala (?Tigo Guatemala?) for USD 2.2 billion in cash. With this tra

Millicom International Cellular S.A. Société anonyme Registered office: 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Luxembourg R.C.S. Luxembourg: B40630 (the “Company”) Notice on the offering of common shares (actions) of the Company, in

FREE WRITING PROSPECTUS Filed pursuant to Rule 433 Registration Statement No. 333-263203 Millicom International Cellular S.A. Soci?t? anonyme Registered office: 2, Rue du Fort Bourbon, L-1249 Luxembourg Grand Duchy of Luxembourg R.C.S. Luxembourg: B40630 (the ?Company?) Notice on the offering of common shares (actions) of the Company, including common shares represented by Swedish Depository Recei