# EDGAR Filing Document

**Accession Number:** 0000912958
**File Stem:** 0000950170-25-113047
**Filing Date:** 2025-9
**Character Count:** 58349
**Document Hash:** efc8de73e17daabc2eb02aefacac349b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000950170-25-113047.hdr.sgml**: 20250904

**ACCESSION NUMBER**: 0000950170-25-113047

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 6

**FILED AS OF DATE**: 20250904

**DATE AS OF CHANGE**: 20250904

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MILLICOM INTERNATIONAL CELLULAR SA
- **CENTRAL INDEX KEY:** 0000912958
- **STANDARD INDUSTRIAL CLASSIFICATION:** RADIO TELEPHONE COMMUNICATIONS [4812]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 000000000
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-49833
- **FILM NUMBER:** 251293929

**BUSINESS ADDRESS:**
- **STREET 1:** 148-150, BOULEVARD DE LA PETRUSSE
- **CITY:** LUXEMBOURG
- **STATE:** N4
- **ZIP:** L-2330
- **BUSINESS PHONE:** 3524571451

**MAIL ADDRESS:**
- **STREET 1:** 148-150, BOULEVARD DE LA PETRUSSE
- **CITY:** LUXEMBOURG
- **STATE:** N4
- **ZIP:** L-2330
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Atlas Investissement SAS
- **CENTRAL INDEX KEY:** 0001952901

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** I0
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**BUSINESS ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 16 RUE DE LA VILLE L'EVEQUE
- **CITY:** PARIS
- **PROVINCE COUNTRY:** I0
- **BUSINESS PHONE:** 33 1 42 66 99 19

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 16 RUE DE LA VILLE L'EVEQUE
- **CITY:** PARIS
- **PROVINCE COUNTRY:** I0

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Atlas Investissement
- **DATE OF NAME CHANGE:** 20221031

## Exhibit 99.28

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp; Exhibit 28
&nbsp;&nbsp;&nbsp;&nbsp; <br>

![](ck0001459200-ex99_28i0.jpg)

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **Date:** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; September 2, 2025  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **To:** | **ATLAS INVESTISSEMENT S.A.S.**, a French "*société par actions simplifiée*" validly incorporated and duly existing under the laws of France, having its registered office located at 16 rue de la Ville L'Evêque 75008 Paris, France, registered under number 908 070 188 at the "*Registre du Commerce et des Sociétés*" of Paris ("**Counterparty**")  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **From:** | **CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK**, a French "*société anonyme*", authorised as a credit institution and an investment services provider, having its registered office at 12, Place des Etats-Unis, CS 70052 – 92547 Montrouge Cedex, France, registered under number 304 187 701 at the "*Registre du Commerce et des Sociétés*" of Nanterre ("**Bank**")  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **Re:** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Amendment to Share Option Transaction Confirmation  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; This letter agreement amends, supplements and forms part of the long form Confirmation, dated as of August 20, 2025, confirming the terms and conditions of that certain Share Option Transaction (the "**Transaction**") entered into between Bank and Counterparty as of the "Trade Date" specified therein (as amended and supplemented from time to time, the "**Confirmation**"). Any capitalized term used herein and not expressly defined herein has the meaning assigned to it in the Confirmation.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; Each of Bank and Counterparty, intending to be legally bound, hereby acknowledges and agrees that:

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**1. Amendments**. The Confirmation is amended as follows, with such amendments effective as of the date hereof:

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; In the definition of "**Initial Hedging Period**", the words "**10**<sup>th</sup> **Exchange Business Day**" shall be deleted and replaced with "**20**<sup>th</sup> **Exchange Business Day**". <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**2. Representations and Acknowledgements***.* Counterparty repeats as of the date hereof the representations made to Bank in Sections 6.1(i) and 6.1(j) of the Confirmation provided that reference therein to "this Transaction" shall be deemed to be reference to this amendment. Each party repeats as of the date hereof the representations by it to the other party in Sections 3(a), 3(b), 3(c), 3(d), 3(e) and 3(g) of the Agreement.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**3. Consent.** Pursuant to Section 6.1(d) of the Confirmation, Bank hereby consents that each confirmation of the Other Share Option Transactions be amended in the same terms provided in paragraph 1 of this amendment.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**4. Entire Agreement; Continuation of Confirmation.** This letter agreement constitutes the entire agreement and understanding of the parties with respect to the matters set forth above. All prior discussions and agreements between the parties are merged herein. The Confirmation, as modified herein, shall continue in full force and effect.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**5. Governing Law**. This letter agreement is subject to the same governing law and jurisdiction provisions as set out in the Agreement.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

**6. Electronic signature**. Each party acknowledges that the electronic signature solution offered by DocuSign implements an electronic signature within the meaning of article 1367 of the French Code civil which provides for a reliable process of identification of its signatories and guarantees the connection between each electronic signature and this document. Each party agrees and acknowledges that the electronic signature of this letter agreement is fully valid and enforceable against it and any other party and that the electronic form of this letter agreement has the same legal effect and admissibility as evidence in any legal proceedings as if it was signed by handwritten signature. This clause constitutes an agreement on evidence (contrat sur la preuve) within the meaning of article 1356 of the French Code civil.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

![](ck0001459200-ex99_28i0.jpg)

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; This letter agreement is dated September 2, 2025:

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp; CREDIT AGRICOLE CORPORATE AND INVESTMENT BANK
&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Grégoire Gros  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Nicolas Granger  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Grégoire Gros  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Nicolas Granger  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Authorized signatory  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Authorized signatory  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; Please confirm that the foregoing correctly sets forth the terms of our agreement by executing this letter agreement.

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; Yours sincerely,

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; Confirmed as of the date first above written:

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp; ATLAS INVESTISSEMENT S.A.S.
&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| |
|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Anthony Maarek  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Anthony Maarek  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: *Directeur Général*  |

---

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

## Exhibit 99.29

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exhibit 29
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

![](ck0001459200-ex99_29i0.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **Date:** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; September 2, 2025  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **To:** | **ATLAS INVESTISSEMENT S.A.S.**, a French "*société par actions simplifiée*" validly incorporated and duly existing under the laws of France, having its registered office located at 16 rue de la Ville L'Evêque 75008 Paris, France, registered under number 908 070 188 at the "*Registre du Commerce et des Sociétés*" of Paris ("**Counterparty**")  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **From:** | **NATIXIS**, a French "société anonyme", authorised as a credit institution and an investment services provider, having its registered office at 7, promenade Germaine Sablon, 75013 Paris, France, registered under number 542 044 524 at the "*Registre du Commerce et des Sociétés*" of Paris ("**Bank**")  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| **Re:** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Amendment to Share Option Transaction Confirmation  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This letter agreement amends, supplements and forms part of the long form Confirmation, dated as of August 20, 2025, confirming the terms and conditions of that certain Share Option Transaction (the "**Transaction**") entered into between Bank and Counterparty as of the "Trade Date" specified therein (as amended and supplemented from time to time, the "**Confirmation**"). Any capitalized term used herein and not expressly defined herein has the meaning assigned to it in the Confirmation.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Each of Bank and Counterparty, intending to be legally bound, hereby acknowledges and agrees that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**1. Amendments**. The Confirmation is amended as follows, with such amendments effective as of the date hereof:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; In the definition of "**Initial Hedging Period**", the words "**10**<sup>th</sup> **Exchange Business Day**" shall be deleted and replaced with "**20**<sup>th</sup> **Exchange Business Day**". <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**2. Representations and Acknowledgements***.* Counterparty repeats as of the date hereof the representations made to Bank in Sections 6.1(i) and 6.1(j) of the Confirmation provided that reference therein to "this Transaction" shall be deemed to be reference to this amendment. Each party repeats as of the date hereof the representations by it to the other party in Sections 3(a), 3(b), 3(c), 3(d), 3(e) and 3(g) of the Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**3. Consent.** Pursuant to Section 6.1(d) of the Confirmation, Bank hereby consents that each confirmation of the Other Share Option Transactions be amended in the same terms provided in paragraph 1 of this amendment.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**4. Entire Agreement; Continuation of Confirmation.** This letter agreement constitutes the entire agreement and understanding of the parties with respect to the matters set forth above. All prior discussions and agreements between the parties are merged herein. The Confirmation, as modified herein, shall continue in full force and effect.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**5. Governing Law**. This letter agreement is subject to the same governing law and jurisdiction provisions as set out in the Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**6. Electronic signature**. Each party acknowledges that the electronic signature solution offered by DocuSign implements an electronic signature within the meaning of article 1367 of the French Code civil which provides for a reliable process of identification of its signatories and guarantees the connection between each electronic signature and this document. Each party agrees and acknowledges that the electronic signature of this letter agreement is fully valid and enforceable against it and any other party and that the electronic form of this letter agreement has the same legal effect and admissibility as evidence in any legal proceedings as if it was signed by handwritten signature. This clause constitutes an agreement on evidence (contrat sur la preuve) within the meaning of article 1356 of the French Code civil.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

![](ck0001459200-ex99_29i0.jpg)

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This letter agreement is dated September 2, 2025:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; NATIXIS
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Loïc Chenevier  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Thomas Le Cam  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Loïc Chenevier  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Thomas Le Cam  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Authorized signatory  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Authorized signatory  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Please confirm that the foregoing correctly sets forth the terms of our agreement by executing this letter agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Yours sincerely,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Confirmed as of the date first above written:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ATLAS INVESTISSEMENT S.A.S.
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| |
|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Anthony Maarek  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Anthony Maarek  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: *Directeur Général*  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

## Exhibit 99.30

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exhibit 30

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; AMENDMENT AGREEMENT

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; dated as of 2 September 2025

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to a Call Spread Transaction dated 20 August 2025
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Between:
**SOCIÉTÉ GÉNÉRALE,** a company incorporated in accordance with the laws of France, with registered address at 29 Boulevard Haussmann, 75009 Paris, France, recorded with the Commercial Registry of Companies under number 552.120.222 and ADEME number FR231725_01YSGB ("**Bank**"). The company is duly represented by Olivier Buttier.

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; And:
**ATLAS INVESTISSEMENT S.A.S.** a company incorporated in accordance with the laws of France, with registered address at 16 rue de la Ville L'Evêque 75008 Paris, France, recorded with the "*Registre du Commerce et des Sociétés*" of Paris under number 908 070 188 ("**Counterparty**"**)**. The company is duly represented by Anthony MAAREK.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This amendment agreement ()"**Amendment**") is made and entered into between Bank and Counterparty, hereinafter referred to individually as a "Party" and collectively the "Parties".

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.2 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Whereas Bank and Counterparty entered into **Share Option Transaction** on August 20<sup>th</sup>, 2025 (the "**Transaction** "), evidenced by a confirmation date August 20<sup>th</sup>, 2025 (the "**Confirmation**") governed by an ISDA Master Agreement dated as of August 8<sup>th</sup>, 2025 (the "**Master Agreement** "), each as amended, supplemented or otherwise modified from time to time.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.4 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Whereas Bank and Counterparty desire to amend the Transaction.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Accordingly, in consideration of the mutual agreements contained in this Amendment the Parties agree as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**1.** **Amendments to Transaction** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Bank and Counterparty hereby agree that, upon execution of this Amendment by both Parties, with effect from the date hereof (the "**Amendment Effective Date** "), the Transaction is hereby amended as follows:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; In the definition of "**Initial Hedging Period**" in Section 2 (***General Terms***) of the Confirmation, the words "*10*<sup>th</sup> *Exchange Business Day*" shall be deleted and replaced with "*20*<sup>th</sup> *Exchange Business Day*".

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**2.** **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Consent** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Pursuant to Section 6.1(d) of the Confirmation, Bank hereby consents that each confirmation of the Other Share Option Transactions be amended in the same terms provided in paragraph 1 of this Amendment.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**3.** **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Continuity and further assurance** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.1 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Continuing obligations

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Except for any amendment to the Transaction and the Confirmation made pursuant to this Amendment, all terms and conditions of the Transaction, the Confirmation and the Master Agreement will continue in full force and effect in accordance with their provisions on the Amendment Effective Date hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.2 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Further assurance

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Party B shall at its own expense, do all acts and steps necessary or desirable to give effect to the amendments effected or to be effected by this letter.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**4.** **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Representations** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Counterparty repeats as of the date hereof the representations made to Bank in Sections 6.1(i) and 6.1(j) of the Confirmation provided that reference therein to "this Transaction" shall be deemed to be reference to this Amendment. Each party repeats as of the date hereof the representations by it to the other party in Sections 3(a), 3(b), 3(c), 3(d), 3(e) and 3(g) of the Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**5.** **&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Miscellaneous** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)  ***<u>Entire Agreement; Restatement</u>*** . This Amendment constitutes the entire agreement and understanding of the Parties with respect to its subject matter and supersedes all oral communication and prior writings (except as otherwise provided herein) with respect thereto.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)  ***<u>Amendments</u>*** . No amendment, modification or waiver in respect of the matters contemplated by this Amendment will be effective unless made in accordance with the terms of the Master Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)  ***<u>Counterparts</u>*** . This Amendment may be executed and delivered in counterparts, each of which will be deemed an original.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)  ***<u>Headings</u>*** . The headings used in this Amendment are for convenience of reference only and are not to affect the construction of or to be taken into consideration in interpreting this Amendment.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(e)  ***<u>Governing law & Jurisdiction</u>*** . This Amendment and any non-contractual obligations arising out of or in connection with it are governed by and construed in accordance with English law. The provisions of Clause 13(b) (*Jurisdiction*) of the Master Agreement shall apply to this Amendment as it applies to the Master Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Atlas Investissement S.A.S. - Société Générale – Call Spread (Tranche 2) – Amendment September 2025

2/3

------

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

**IN WITNESS** whereof the Parties have executed this Amendment on the respective date specified below with effect from the Amendment Effective Date hereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ATLAS INVESTISSEMENT S.A.S.
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; By:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Anthony Maarek  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: **Anthony MAAREK**  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: **Anthony MAAREK**  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: *Directeur Général*  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: *Directeur Général*  |

---

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

#### &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SOCIÉTÉ GÉNÉRALE
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <br>

---

| | |
|:---|:---|
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; By:  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /s/ Olivier Buttier  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Olivier Buttier  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Name: Olivier Buttier  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Head of Strategic Transactions Group  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Title: Head of Strategic Transactions Group  |

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*&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Atlas Investissement S.A.S. - Société Générale – Call Spread (Tranche 2) – Amendment September 2025* 

3/3

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 22)**

**MILLICOM INTERNATIONAL CELLULAR SA**

*(Name of Issuer)*

**Common Shares**

*(Title of Class of Securities)*

**L6388F110**

*(CUSIP Number)*

**Denis Klimentchenko**<br>Skadden, Arps, Slate, Meagher & Flom<br>(UK) LLP, 22 Bishopsgate<br>London X0 EC2N 4BQ<br>44(0)20 7519 7289

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**09/02/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Atlas Investissement SAS** | Name of reporting person<br>**Atlas Investissement SAS** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 common shares, par value $1.50 per share ("Common Shares") of Millicom International Cellular S.A., a Luxembourg company (the "Issuer"), beneficially owned by Atlas Investissement SAS, a company incorporated under French law as a societe par actions simplifiee ("Atlas Investissement"). Iliad Holding SAS ("Iliad Holding"), as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya SAS ("Maya"), as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. Xavier Niel, the President of Maya, Jules Niel, John Niel, Elisa Niel and Joseph Niel (together, the "Niel Family") may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Iliad Holding SAS** | Name of reporting person<br>**Iliad Holding SAS** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Maya SAS** | Name of reporting person<br>**Maya SAS** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**CO** | Type of Reporting Person (See Instructions)<br>**CO** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Xavier Niel** | Name of reporting person<br>**Xavier Niel** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Jules Niel** | Name of reporting person<br>**Jules Niel** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**John Niel** | Name of reporting person<br>**John Niel** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Elisa Niel** | Name of reporting person<br>**Elisa Niel** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

| **CUSIP No.** | **L6388F110** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Joseph Niel** | Name of reporting person<br>**Joseph Niel** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[ ] (a)<br>[x] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**I0** | Citizenship or place of organization<br>**I0** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70470018.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70470018.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | Aggregate amount beneficially owned by each reporting person<br>**70470018.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**42.2%** | Percent of class represented by amount in Row (11)<br>**42.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** (1) Reflects 70,470,018 Common Shares beneficially owned by Atlas Investissement. Iliad Holding, as the controlling shareholder of Atlas Investissement, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement. Maya, as the controlling shareholder of Iliad Holding, may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Iliad Holding and Atlas Investissement. The Niel Family may be deemed to have shared beneficial ownership over the Common Shares beneficially owned by Atlas Investissement, Iliad Holding and Maya.

(2) The percentage reflected in row 13 in the table above is calculated on the basis of 167,083,756 Common Shares outstanding as of July 31, 2025 (169,000,000 Common Shares outstanding, less 1,916,244 Common Shares held in treasury), as set forth in the last relevant update available on the date hereof on the Issuer's website.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Shares

**(b) Name of Issuer:**
MILLICOM INTERNATIONAL CELLULAR SA

**(c) Address of Issuer's Principal Executive Offices:**
148-150, BOULEVARD DE LA PETRUSSE, LUXEMBOURG, N4, L-2330

This Amendment No. 22 ("Amendment No. 22") to Schedule 13D relates to the Common Shares, par value $1.50 per share (the "Common Shares"), of Millicom International Cellular S.A., a Luxembourg company ("Issuer"), and amends and supplements the initial statement on Schedule 13D filed on February 24, 2023, as amended by Amendment No. 1 to the Schedule 13D filed on March 28, 2023, Amendment No. 2 to the Schedule 13D filed on April 26, 2023, Amendment No. 3 to the Schedule 13D filed on May 12, 2023, Amendment No. 4 to the Schedule 13D filed on May 25, 2023, Amendment No. 5 to the Schedule 13D filed on June 2, 2023, Amendment No. 6 to the Schedule 13D filed on July 24, 2023, Amendment No. 7 to the Schedule 13D filed on August 24, 2023, Amendment No. 8 to the Schedule 13D filed on October 2, 2023, Amendment No. 9 to the Schedule 13D filed on November 8, 2023, Amendment No. 10 to the Schedule 13D filed on January 17, 2024, Amendment No. 11 to the Schedule 13D filed on May 23, 2024, Amendment No. 12 to the Schedule 13D filed on July 3, 2024, Amendment No 13. to the Schedule 13D filed on July 22, 2024, Amendment No. 14 to the Schedule 13D filed on August 2, 2024, Amendment No. 15 to the Schedule 13D filed on August 26, 2024, Amendment No. 16 to the Schedule 13D filed on September 9, 2024, Amendment No. 17 to the Schedule 13D filed on October 11, 2024, Amendment No. 18 to the Schedule 13D filed on March 12, 2025, Amendment No. 19 to the Schedule 13D filed on March 17, 2025, Amendment No. 20 to the Schedule 13D filed on August 13, 2025, and Amendment No. 21 to the Schedule 13D filed on August 22, 2025 (as so amended, the "Schedule 13D"). Capitalized terms used but not defined in this Amendment No. 22 shall have the same meanings ascribed to them in the Schedule 13D.

**Item 4. Purpose of Transaction**

Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following:

As previously disclosed, on August 20, 2025, Atlas Investissement entered into European-style call spread option transactions (the "Transactions") with unaffiliated third party financial institutions. The Transactions provide Atlas Investissement with economic exposure to the Common Shares between the lower strike prices and upper strike prices for each respective call thereunder, each in respect of up to 1,111,111 Common Shares, with a premium, strike price and cap price based on pre-determined formulas, which take into account each financial institution's hedging activity (such strike and cap prices, as well as other variables of the Transactions, also subject to adjustments in certain circumstances). The Transactions are exercisable in 40 separate tranches of approximately equal size, with staggered expiration dates on successive trading days (subject to market disruption). The Transactions can be settled in Common Shares or cash subject to certain conditions.

On September 2, 2025, Atlas Investissement entered into an amendment (the "Amendment") to the confirmation of the Transactions with each of the financial institution counterparties. The Amendment extended the initial hedging period with respect to the Transactions from 10 business days following August 20, 2025 to 20 business days following such date.

The foregoing description of the Amendment is qualified in its entirety by reference to the Amendments to Share Option Transaction Confirmation, each of which is filed as Exhibit 28, 29 and 30, respectively, to the Schedule 13D and incorporated herein by reference.

**Item 5. Interest in Securities of the Issuer**

**(a)**
See Items 11 and 13 of each of the cover pages.

**(b)**
See Items 7 through 10 of each of the cover pages.

**(c)**
Except as described in Item 4 above and in Item 4 of Amendment Nos. 20 and 21 to the Schedule 13D filed on August 13 and August 22, 2025, respectively, the Reporting Persons have not effected any transactions in Shares during the past sixty days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 6 of the Schedule 13D is hereby amended and supplemented as follows:

The information set forth in Item 4 of this Amendment No. 22 is incorporated herein by reference.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Atlas Investissement SAS

**Signature:** /s/ Anthony Maarek

**Name/Title:** Anthony Maarek, Managing Director

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Iliad Holding SAS

**Signature:** /s/ Xavier Niel

**Name/Title:** Xavier Niel, President of Maya SAS, itself President of Iliad

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Maya SAS

**Signature:** /s/ Xavier Niel

**Name/Title:** Xavier Niel, President

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Xavier Niel

**Signature:** /s/ Xavier Niel

**Name/Title:** Xavier Niel

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Jules Niel

**Signature:** /s/ Jules Niel

**Name/Title:** Jules Niel

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** John Niel

**Signature:** /s/ John Niel

**Name/Title:** John Niel

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Elisa Niel

**Signature:** /s/ Xavier Niel

**Name/Title:** Xavier Niel, Attorney-in-Fact, for and on behalf of as Parent/Guardian of Elisa Niel

**Date:** 09/04/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Joseph Niel

**Signature:** /s/ Xavier Niel

**Name/Title:** Xavier Niel, Attorney-in-Fact, for and on behalf of as Parent/Guardian of Joseph Niel

**Date:** 09/04/2025