Form 8-K
8-K — AMERICAN TOWER CORP /MA/
Accession: 0001053507-26-000108
Filed: 2026-05-07
Period: 2026-05-07
CIK: 0001053507
SIC: 6798 (REAL ESTATE INVESTMENT TRUSTS)
Item: Entry into a Material Definitive Agreement
Item: Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
Documents
8-K — amt-20260507.htm (Primary)
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8-K
8-K (Primary)
Filename: amt-20260507.htm · Sequence: 1
amt-20260507
AMERICAN TOWER CORP /MA/0001053507false00010535072026-05-072026-05-070001053507exch:XNYSus-gaap:CommonStockMember2026-05-072026-05-070001053507exch:XNYSamt:A1950SeniorNotesDue2026Member2026-05-072026-05-070001053507exch:XNYSamt:A0450SeniorNotesDue2027Member2026-05-072026-05-070001053507exch:XNYSamt:A0400SeniorNotesDue2027Member2026-05-072026-05-070001053507exch:XNYSamt:A4125SeniorNotesDue2027Member2026-05-072026-05-070001053507exch:XNYSamt:A0500SeniorNotesDue2028Member2026-05-072026-05-070001053507exch:XNYSamt:A0875SeniorNotesDue2029Member2026-05-072026-05-070001053507exch:XNYSamt:A0950SeniorNotesDue2030Member2026-05-072026-05-070001053507exch:XNYSamt:A3.900SeniorNotesDue2030Member2026-05-072026-05-070001053507exch:XNYSamt:A4625SeniorNotesDue2031Member2026-05-072026-05-070001053507exch:XNYSamt:A1.000SeniorNotesDue2032Member2026-05-072026-05-070001053507exch:XNYSamt:A3.625SeniorNotesDue2032Member2026-05-072026-05-070001053507exch:XNYSamt:A1250SeniorNotesDue2033Member2026-05-072026-05-070001053507exch:XNYSamt:A4.100SeniorNotesDue2034Member2026-05-072026-05-07
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): May 7, 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
1.950% Senior Notes due 2026 AMT 26B 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
4.100% 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 1.01 Entry into a Material Definitive Agreement.
On May 7, 2026, American Tower Corporation (the “Company”) entered into three separate amendment agreements (each an “Amendment” and collectively, the “Amendments”) to amend the agreements for each of its (i) $6.0 billion senior unsecured multicurrency revolving credit facility, as amended and restated on December 8, 2021, as further amended, with Toronto Dominion (Texas) LLC (“TD”) as Administrative Agent (as defined therein) (the “2021 Multicurrency Credit Facility”), (ii) $4.0 billion senior unsecured revolving credit facility, as amended and restated on December 8, 2021, as further amended, with TD as Administrative Agent (as defined therein) (the “2021 Credit Facility”) and (iii) $1.0 billion unsecured term loan, as amended and restated on December 8, 2021, as further amended, with Mizuho Bank, Ltd. as Administrative Agent (as defined therein) (the “2021 Term Loan” and, collectively with the 2021 Multicurrency Credit Facility and the 2021 Credit Facility, the “Loans”).
The Amendments to the Loans, among other things:
i.extend the maturity dates of the 2021 Multicurrency Credit Facility, the 2021 Credit Facility and the 2021 Term Loan to May 1, 2029, May 1, 2031 and May 1, 2029, respectively;
ii.include limited conditionality provisions in the 2021 Multicurrency Credit Facility, permitting the Company to borrow up to $5.0 billion in connection with certain acquisitions subject to such limited conditionality provisions;
iii.increase the swingline sublimit under each of the 2021 Multicurrency Credit Facility and the 2021 Credit Facility from $50.0 million to $100.0 million;
iv.amend the covenant governing the incurrence of liens under each of the Loans to permit the incurrence of liens securing indebtedness in an aggregate amount not to exceed the 3.5x ratio of Senior Secured Debt to Adjusted EBITDA (each as defined in each of the Loans); and
v.amend the covenant governing the incurrence of indebtedness under each of the Loans to restrict the incurrence of indebtedness to subsidiaries of the Company only.
Except as described above, all of the other material terms of the Loans remain in full force and effect.
The foregoing description is only a summary of certain provisions of the Amendments and is qualified in its entirety by the terms of the Amendments, copies of which will be filed as exhibits to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2026.
Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
Please refer to the discussion under Item 1.01 above, which is incorporated under this Item 2.03 by reference.
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: May 7, 2026 By: /s/ Rodney M. Smith
Rodney M. Smith
Executive Vice President, Chief Financial Officer and Treasurer
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Cover Cover
May 07, 2026
Entity Information [Line Items]
Document Type
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Document Period End Date
May 07, 2026
Entity Incorporation, State or Country Code
DE
Entity File Number
001-14195
Entity Tax Identification Number
65-0723837
Entity Address, Address Line One
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Entity Address, City or Town
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Entity Address, State or Province
MA
Entity Address, Postal Zip Code
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City Area Code
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Local Phone Number
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NEW YORK STOCK EXCHANGE, INC. | Common Stock
Entity Information [Line Items]
Title of 12(b) Security
Common Stock, $0.01 par value
Trading Symbol
AMT
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 1.950% Senior Notes due 2026
Entity Information [Line Items]
Title of 12(b) Security
1.950% Senior Notes due 2026
Trading Symbol
AMT 26B
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | Zero Point Four Five Zero Percent Senior Notes, Due 2027
Entity Information [Line Items]
Title of 12(b) Security
0.450% Senior Notes due 2027
Trading Symbol
AMT 27C
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | Zero Point Five Zero Percent Senior Notes Due 2028 [Member]
Entity Information [Line Items]
Title of 12(b) Security
0.500% Senior Notes due 2028
Trading Symbol
AMT 28A
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | One Point Zero Percent Senior Notes Due 2032
Entity Information [Line Items]
Title of 12(b) Security
1.000% Senior Notes due 2032
Trading Symbol
AMT 32
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | Zero Point Eight Seven Five Percent Senior Notes, Due
Entity Information [Line Items]
Title of 12(b) Security
0.875% Senior Notes due 2029
Trading Symbol
AMT 29B
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | One Point Two Five Zero Percent Senior Notes, Due 2033
Entity Information [Line Items]
Title of 12(b) Security
1.250% Senior Notes due 2033
Trading Symbol
AMT 33
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 0.400% Senior Notes Due 2027
Entity Information [Line Items]
Title of 12(b) Security
0.400% Senior Notes due 2027
Trading Symbol
AMT 27D
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 0.950% Senior Notes Due 2030
Entity Information [Line Items]
Title of 12(b) Security
0.950% Senior Notes due 2030
Trading Symbol
AMT 30C
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 4.125% Senior Notes due 2027
Entity Information [Line Items]
Title of 12(b) Security
4.125% Senior Notes due 2027
Trading Symbol
AMT 27F
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 4.625% Senior Notes Due 2031
Entity Information [Line Items]
Title of 12(b) Security
4.625% Senior Notes due 2031
Trading Symbol
AMT 31B
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 3.900% Senior Notes Due 2030
Entity Information [Line Items]
Title of 12(b) Security
3.900% Senior Notes due 2030
Trading Symbol
AMT 30D
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 4.100% Senior Notes due 2034
Entity Information [Line Items]
Title of 12(b) Security
4.100% Senior Notes due 2034
Trading Symbol
AMT 34A
Security Exchange Name
NYSE
NEW YORK STOCK EXCHANGE, INC. | 3.625% Senior Notes Due 2032
Entity Information [Line Items]
Title of 12(b) Security
3.625% Senior Notes due 2032
Trading Symbol
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Security Exchange Name
NYSE
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