amt-20250822

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): August 22, 2025

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.)

116 Huntington Avenue

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 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

(d) On August 22, 2025, the Board of Directors (the “Board”) of American Tower Corporation (the “Company”) elected Eugene (“Gene”) F. Reilly as a director and member of its Compensation Committee, effective immediately. In accordance with the Company’s Amended and Restated By-Laws, Mr. Reilly will serve as a director until the Company’s 2026 Annual Meeting of Stockholders and until his successor is duly elected and qualified.

Mr. Reilly most recently served as the Vice Chairman of Prologis, Inc., and served as an advisor through April 2024. Mr. Reilly joined Prologis (then AMB Property Corporation) in 2003 and held several roles, including serving as Chief Investment Officer from 2019 to 2023 and Chief Executive of the Americas from 2011 to 2019, where he oversaw all aspects of the company’s operations across the United States, Canada and Latin America. Mr. Reilly has 40 years of experience in real property investment, management and operations, including previously serving as Chief Investment Officer of Cabot Properties, Inc., a private equity industrial real estate firm, where he was a founding partner and served on its investment committee and board of directors. Mr. Reilly previously served as a member of the technical committee of FIBRA Prologis and as a member of the board of directors and executive committee of the National Association of Industrial and Office Properties (NAIOP).

For his service on the Board, Mr. Reilly will receive the Company’s standard compensation for non-employee directors.

A copy of the press release (“Press Release”) announcing the appointment of Mr. Reilly to the Board is filed herewith as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits



Exhibit No.						Description

99.1						Press Release, dated Aug ust 25 , 2025 .

104						Cover Page Interactive Data File (embedded within the Inline XBRL document).

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:	August 25, 2025	By:	/s/ Rodney M. Smith
			Rodney M. Smith
			Executive Vice President, Chief Financial Officer and Treasurer

American Tower Corporation (REIT) filed SEC Form 8-K: Leadership Update, Financial Statements and Exhibits