Millicom (NASDAQ: TIGO) completes $87.5M reopening of 2032 notes

Rhea-AI Filing Summary

Millicom International Cellular S.A. completed an $87.5 million aggregate principal amount reopening of its 7.375% Senior Notes due 2032 in a Regulation S private placement to Banco General, S.A. The reopening was upsized from $75 million originally priced on April 1, 2026.

Millicom intends to use the net proceeds for general corporate purposes, which may include capital spending and mergers and acquisitions. Application has been made to list and trade the additional notes on the Luxembourg Stock Exchange’s Official List and Euro MTF market. The notes were offered outside the United States only to non-U.S. investors under Regulation S.

Millicom describes itself as a major provider of fixed and mobile telecom services in Latin America, serving about 52 million customers and passing over 14 million homes with its fiber-cable network as of December 31, 2025.

Key Figures

Reopened notes size: $87.5 million aggregate principal amount Coupon rate: 7.375% Original additional notes size: $75 million aggregate principal amount +3 more

6 metrics

Reopened notes size $87.5 million aggregate principal amount Reopening of 7.375% Senior Notes due 2032

Coupon rate 7.375% Senior Notes due 2032

Original additional notes size $75 million aggregate principal amount Originally priced on April 1, 2026

Customer base Approximately 52 million customers As of December 31, 2025

Homes passed Over 14 million homes Fiber-cable footprint as of December 31, 2025

Employees Approximately 15,000 people Including Honduras joint venture as of December 31, 2025

Key Terms

Regulation S, Senior Notes, Euro MTF market, inside information, +2 more

6 terms

Regulation S regulatory

"in a Regulation S only private placement that is exempt from the registration"

Regulation S is a set of rules that allows companies to sell securities (like shares or bonds) to investors outside the United States without having to follow all U.S. securities laws. It matters because it makes it easier for companies to raise money from international investors while still complying with U.S. regulations.

Senior Notes financial

"reopening of its 7.375% Senior Notes due 2032 (the “Additional Notes”)"

Senior notes are a type of loan that a company borrows from investors, promising to pay it back with interest. They are called "senior" because in case the company faces financial trouble, these lenders are paid back before others. This makes senior notes safer for investors compared to other types of loans or bonds.

Euro MTF market financial

"admitted to trading on the Euro MTF market thereof"

A euro MTF market is a European trading venue that matches buyers and sellers of securities—often bonds and some stocks—outside the main national exchanges. Think of it as a specialized marketplace with lighter listing rules and different oversight; it matters to investors because the venue affects how easy it is to buy or sell a security, the transparency of prices, and the level of regulatory protection and reporting they can expect.

inside information regulatory

"may constitute a public disclosure of inside information by Millicom under Regulation (EU) 596/2014"

Information not available to the public that, if known, would likely cause a company’s stock or bonds to rise or fall—for example, undisclosed earnings, deals, product results, or management plans. It matters because trading on that information gives an unfair advantage, can distort market prices, and is typically illegal or subject to strict rules, so investors watch for proper disclosure and compliance to protect fair, transparent markets.

forward-looking statements regulatory

"Certain statements included within this press release are “forward-looking statements” within the meaning"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

Private Securities Litigation Reform Act of 1995 regulatory

"intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995"

Form 6-K: How Foreign Companies Report to the SEC →

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 36^th Street, Suite 530

Doral, FL 33166

United States

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:

Form 20-F x Form 40-F ¨

MILLICOM INTERNATIONAL CELLULAR S.A.

INDEX TO FURNISHED MATERIAL

Item

1. Press release dated April 14, 2026.

Item 1 

Millicom completes upsized reopening of $87.5 million of 7.375% Senior Notes Due 2032

Luxembourg, April 14, 2026 – Millicom International Cellular S.A. (“Millicom”) (NASDAQ US (TIGO)) today completed an $87.5 million aggregate principal amount reopening of its 7.375% Senior Notes due 2032 (the “Additional Notes”) in a Regulation S only private placement that is exempt from the registration requirements of the U.S. Securities Act of 1933, as amended (the “Securities Act”) to Banco General, S.A. The offering represents an upsize from the $75 million aggregate principal amount of Additional Notes originally priced on April 1, 2026.

Millicom intends to use the net proceeds of the Additional Notes for general corporate purposes, which may include capital expenditures and mergers and acquisitions.

Application has been made for the Additional Notes to be admitted to listing and trading on the Official List of the Luxembourg Stock Exchange and admitted to trading on the Euro MTF market thereof.

The Additional Notes have been offered outside the United States, only to non-U.S. investors pursuant to Regulation S. The Notes will not be registered under the Securities Act or the securities laws of any other jurisdiction and may not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state laws.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy any security and shall not constitute an offer, solicitation or sale in any jurisdiction in which such offer, solicitation or sale would be unlawful.

Important Information

This press release may constitute a public disclosure of inside information by Millicom under Regulation (EU) 596/2014, as subsequently amended, and any relevant implementing rules and regulations.

Certain statements included within this press release are “forward-looking statements” within the meaning of the U.S. federal securities laws intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995. These forward-looking statements reflect Millicom’s intentions, beliefs or current expectations and include, but are not limited to, all statements other than statements of historical facts, including, without limitation, those regarding Millicom’s strategy, plans, objectives, goals and targets, including those related to the use of proceeds of the institutional private placement. Millicom’s ability to achieve its projected results is dependent on many factors which are outside management’s control. Actual results may differ materially from (and be more negative than) those projected or implied in the forward-looking statements. Such forward-looking information involves risks and uncertainties that could significantly affect expected results and is based on certain key assumptions. Accordingly, no assurance can be given that any particular expectation will be met and reliance should not be placed on any forward-looking statement. Additionally, forward-looking statements regarding past trends or activities should not be taken as a representation that such trends or activities will continue in the future. All forward-looking statements included herein are based on information available to Millicom as of the date hereof and the delivery of this document does not imply that the information contained herein is correct as at any time subsequent to the date hereof. Millicom undertakes no obligation to update publicly or revise any forward-looking statement, whether as a result of new information, future events or otherwise, except as may be required by applicable law. All subsequent written and oral forward-looking statements attributable to Millicom or persons acting on its behalf are expressly qualified in their entirety by these cautionary statements.

1 

For further information, please contact:

Press:
Sofía Corral, Director Corporate Communications press@millicom.com Investors: Luca Pfeifer, VP for Investor Relations
investors@millicom.com

About Millicom

Millicom (NASDAQ: TIGO) is a leading provider of fixed and mobile telecommunications services in Latin America. Through its TIGO^® and Tigo Business^® brands, the company provides a wide range of digital services and products, including TIGO Money for mobile financial services, TIGO Sports for local entertainment, TIGO ONEtv for pay TV, highspeed data, voice, and business-to-business solutions such as cloud and security. As of December 31, 2025, Millicom, including its Honduras Joint Venture, employed approximately 15,000 people and provided mobile and fiber-cable services through its digital highways to approximately 52 million customers, with a fiber-cable footprint over 14 million homes passed. Founded in 1990, Millicom International Cellular S.A. is headquartered in Luxembourg with principal executive offices in Doral, Florida. 

2 

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

		MILLICOM INTERNATIONAL CELLULAR S.A. (Registrant)
		By:	/s/ Salvador Escalón
			Name:	Salvador Escalón
			Title:	Executive Vice President, Chief Legal and Compliance Officer

Date: April 15, 2026 

FAQ

What did Millicom (TIGO) disclose in this Form 6-K filing?

Millicom disclosed it completed an $87.5 million reopening of its 7.375% Senior Notes due 2032 in a Regulation S private placement. The transaction was upsized from $75 million originally priced on April 1, 2026, and was placed with Banco General, S.A.

How large is Millicom’s new 7.375% 2032 notes reopening?

The reopening totals an $87.5 million aggregate principal amount of 7.375% Senior Notes due 2032. This represents an increase from the $75 million aggregate principal amount originally priced on April 1, 2026, reflecting investor demand for the additional notes.

How will Millicom (TIGO) use the proceeds from the additional notes?

Millicom intends to use the net proceeds from the additional 7.375% Senior Notes due 2032 for general corporate purposes. These purposes may include capital expenditures and potential mergers and acquisitions, giving the company flexibility to support its ongoing strategic initiatives.

Where will Millicom’s additional 2032 notes be listed and traded?

Millicom has applied for the additional 7.375% Senior Notes due 2032 to be admitted to listing on the Official List of the Luxembourg Stock Exchange. The notes are also expected to trade on the exchange’s Euro MTF market, subject to approval.

Who could purchase Millicom’s new 7.375% notes in this transaction?

The additional 7.375% Senior Notes due 2032 were offered outside the United States only to non-U.S. investors under Regulation S. In this reopening, the notes were placed in a private transaction exempt from U.S. registration requirements with Banco General, S.A. as investor.

How large is Millicom’s customer base and network footprint?

As of December 31, 2025, Millicom, including its Honduras joint venture, employed about 15,000 people and served approximately 52 million customers. Its fiber-cable network passed over 14 million homes, illustrating a substantial digital infrastructure presence across its Latin American markets.