American Tower (AMT) SVP Meyer sells 4,454 shares at $186.73

Rhea-AI Filing Summary

American Tower Corp (AMT) insider sale: Robert Joseph Meyer, SVP & Chief Accounting Officer, reported an open-market sale of 4,454 shares of common stock on February 27, 2026 at a price of $186.73 per share.

After this transaction, Meyer directly owned 24,461 American Tower shares. This direct holding figure includes 121 shares acquired under the company’s employee stock purchase plan in May 2025, as noted in the footnote.

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Meyer Robert Joseph

(Last) (First) (Middle)

222 BERKELEY STREET

(Street)

BOSTON MA 02116

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AMERICAN TOWER CORP /MA/ [ AMT ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP & Chief Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/27/2026		S		4,454	D	$186.73	24,461(1)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 121 shares acquired under the issuer's employee stock purchase plan in May 2025.

Remarks:

	/s/ Marina A. Breed, as attorney-in-fact	03/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did AMT insider Robert Joseph Meyer report in this Form 4?

Robert Joseph Meyer reported selling 4,454 shares of American Tower common stock in an open-market transaction on February 27, 2026, at $186.73 per share. He is the company’s SVP & Chief Accounting Officer and continues to hold a sizable direct share position.

How many AMT shares does Robert Joseph Meyer hold after this sale?

After the reported sale, Robert Joseph Meyer directly owns 24,461 American Tower shares. This total includes 121 shares acquired under the company’s employee stock purchase plan in May 2025, according to the filing’s footnote disclosure accompanying the ownership information.

What was the price for Robert Joseph Meyer’s AMT share sale?

The Form 4 shows that Robert Joseph Meyer sold 4,454 American Tower common shares at $186.73 per share. This reported price reflects the per-share consideration for the open-market transaction executed on February 27, 2026, as disclosed in the filing’s transaction table.

What role does Robert Joseph Meyer hold at American Tower (AMT)?

Robert Joseph Meyer serves as American Tower’s Senior Vice President and Chief Accounting Officer. His position classifies him as a corporate officer, which is why his equity transactions in American Tower common stock must be reported publicly on Form 4 with the Securities and Exchange Commission.

Does the AMT Form 4 mention shares from an employee stock purchase plan?

Yes. A footnote explains that Meyer’s post-transaction holding of 24,461 shares includes 121 shares acquired under American Tower’s employee stock purchase plan in May 2025. This clarifies that a portion of his current ownership came through that company-sponsored purchase program.