American Tower to Redeem €250M 2027 Notes

American Tower Corporation plans a partial early redemption of its euro‑denominated debt.

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Form Type

8-K

Rhea-AI Filing Summary

American Tower Corporation plans a partial early redemption of its euro‑denominated debt. The company has sent notice to redeem €250,000,000 of its outstanding €600,000,000 4.125% senior unsecured notes due 2027.

The notes will be redeemed on June 18, 2026 at par plus a make-whole premium and any accrued but unpaid interest. After this transaction, €350,000,000 of these 4.125% notes will remain outstanding.

Insights

American Tower is retiring a portion of its 2027 euro notes early, adjusting its debt profile.

American Tower Corporation is redeeming €250,000,000 of its €600,000,000 4.125% senior unsecured notes due 2027. The redemption price is par plus a make-whole premium and accrued interest, as set out in the 4.125% Indenture.

This reduces the outstanding amount of these notes to €350,000,000. The filing does not specify funding sources, so the net balance-sheet effect depends on how the redemption is financed. Future disclosures in company filings may clarify any related refinancing or cash usage.

8-K Event Classification

Item 8.01 — Other Events

1 item

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Key Figures

Partial redemption amount: €250,000,000 Original notes issued: €600,000,000 Remaining notes outstanding: €350,000,000 +2 more

5 metrics

Partial redemption amount €250,000,000 Principal of 4.125% senior unsecured notes to be redeemed

Original notes issued €600,000,000 Aggregate principal amount of 4.125% notes due 2027

Remaining notes outstanding €350,000,000 4.125% senior unsecured notes after redemption

Coupon rate 4.125% Interest rate on senior unsecured notes due 2027

Redemption date June 18, 2026 Scheduled date for partial redemption

Key Terms

partial redemption, make-whole premium, senior unsecured notes, Indenture, +1 more

5 terms

partial redemption financial

"sent a notice of partial redemption for €250,000,000 of its outstanding"

Partial redemption is when an issuer repays only a portion of a debt or redeemable security issue—such as bonds, notes, or preferred shares—rather than the entire outstanding amount. It matters to investors because it changes the size of their holding and future cash flows: some holders receive cash for the redeemed portion while remaining investors retain a smaller, unchanged instrument, similar to trimming part of a loan and leaving the rest on the original terms.

make-whole premium financial

"plus a make-whole premium calculated pursuant to the terms of the 4.125% Indenture"

A make-whole premium is an extra payment a borrower must give bondholders when repaying debt early to compensate them for lost future interest; think of it as a lump-sum “catch-up” to leave lenders financially where they would have been if the loan had run its full term. It matters to investors because it affects how much they receive on early redemption and influences a company’s decision to refinance or repay debt, altering bond value and expected returns.

senior unsecured notes financial

"4.125% senior unsecured notes due 2027"

Senior unsecured notes are a type of loan a company borrows from investors, promising to pay back with interest. They are called "unsecured" because they aren’t backed by specific assets like buildings or equipment, but "senior" because they are paid back before other debts if the company gets into trouble. Investors see them as a relatively safer way for companies to raise money.

Indenture financial

"in accordance with the redemption provisions of the 4.125% Notes and the Indenture"

An indenture is a legal agreement between a company that borrows money by issuing bonds and the people who buy those bonds. It explains the rules the company must follow, like paying back the money and keeping certain financial promises. This document helps both sides understand their rights and responsibilities.

paying agent financial

"U.S. Bank Europe DAC, UK Branch ... as paying agent"

A paying agent is a bank or company that helps deliver payments, like interest or dividends, to investors. It’s like a trusted middleman who makes sure everyone gets their money on time, so investors don’t have to handle the details themselves.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What debt is American Tower (AMT) redeeming in this 8-K?

American Tower is redeeming €250,000,000 of its €600,000,000 4.125% senior unsecured notes due 2027. These euro-denominated notes were issued under the 4.125% Indenture dated June 1, 2022, as supplemented May 16, 2023.

How much of American Tower’s 4.125% 2027 notes will remain outstanding?

After the partial redemption, €350,000,000 of American Tower’s 4.125% senior unsecured notes due 2027 will remain outstanding. The company is redeeming €250,000,000 out of the original €600,000,000 aggregate principal amount.

When is the redemption date for American Tower’s 4.125% 2027 notes?

The redemption date for the 4.125% senior unsecured notes due 2027 is June 18, 2026. On that date, American Tower will redeem €250,000,000 of the notes at par plus a make-whole premium and accrued interest.

At what price will American Tower redeem the 4.125% notes?

The notes will be redeemed at a price equal to the principal amount of the 4.125% notes being redeemed, plus a make-whole premium under the Indenture, together with any accrued and unpaid interest up to, but excluding, June 18, 2026.

What is the interest rate on American Tower’s notes being partially redeemed?

The notes being partially redeemed carry a 4.125% interest rate. They are euro-denominated senior unsecured notes due 2027, originally issued in an aggregate principal amount of €600,000,000 under the 4.125% Indenture structure.

Which entities are involved as trustee and paying agent for the 4.125% notes?

U.S. Bank Trust Company, National Association, acts as trustee, and U.S. Bank Europe DAC, UK Branch serves as paying agent for the 4.125% notes. These roles are defined in the Base Indenture and Supplemental Indenture No. 2.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/02/2026 - 04:18 PM EDT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of Earliest Event Reported): June 2, 2026

AMERICAN TOWER CORPORATION

(Exact Name of Registrant as Specified in Charter)

Delaware

001-14195

65-0723837

(State or Other Jurisdiction of Incorporation)

(Commission File Number)

(I.R.S. Employer Identification No.)

222 Berkeley Street

Boston, Massachusetts 02116

(Address of Principal Executive Offices) (Zip Code)

(617) 375-7500

(Registrant's telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, $0.01 par value	AMT	New York Stock Exchange
0.450% Senior Notes due 2027	AMT 27C	New York Stock Exchange
0.400% Senior Notes due 2027	AMT 27D	New York Stock Exchange
4.125% Senior Notes due 2027	AMT 27F	New York Stock Exchange
0.500% Senior Notes due 2028	AMT 28A	New York Stock Exchange
0.875% Senior Notes due 2029	AMT 29B	New York Stock Exchange
0.950% Senior Notes due 2030	AMT 30C	New York Stock Exchange
3.900% Senior Notes due 2030	AMT 30D	New York Stock Exchange
4.625% Senior Notes due 2031	AMT 31B	New York Stock Exchange
1.000% Senior Notes due 2032	AMT 32	New York Stock Exchange
3.625% Senior Notes due 2032	AMT 32B	New York Stock Exchange
1.250% Senior Notes due 2033	AMT 33	New York Stock Exchange
4.000% Senior Notes due 2033	AMT 33D	New York Stock Exchange
4.100% Senior Notes due 2034	AMT 34A	New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.☐

Item 8.01 Other Events.

On June 2, 2026, American Tower Corporation (the “Company”) sent a notice of partial redemption for €250,000,000 of its outstanding €600,000,000 aggregate principal amount 4.125% senior unsecured notes due 2027 (the “4.125% Notes”).

In accordance with the redemption provisions of the 4.125% Notes and the Indenture, dated as of June 1, 2022 (the “Base Indenture”), as supplemented by the Supplemental Indenture No. 2, dated as of May 16, 2023 (“Supplemental Indenture No. 2” and, together with the Base Indenture, the “4.125% Indenture”) among the Company, U.S. Bank Trust Company, National Association, as trustee, and U.S. Bank Europe DAC, UK Branch (f/k/a Elavon Financial Services DAC, UK Branch), as paying agent, the 4.125% Notes will be redeemed at a price equal to the principal amount of the 4.125% Notes to be redeemed then outstanding plus a make-whole premium calculated pursuant to the terms of the 4.125% Indenture, together with accrued and unpaid interest, if any, up to, but excluding, the redemption date, which has been set for June 18, 2026. Upon completion of the redemption, €350,000,000 of the 4.125% Notes will remain outstanding.

SIGNATURE

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 hereunto duly authorized.


		AMERICAN TOWER CORPORATION
		(Registrant)

Date:	June 2, 2026	By:	/s/ Rodney M. Smith
			Rodney M. Smith
			Executive Vice President, Chief Financial Officer and Treasurer

Source: View Original Filing on SEC EDGAR

Filing Exhibits & Attachments

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American Tower to Redeem €250M 2027 Notes

Rhea-AI Filing Summary