American Tower (NYSE: AMT) director buys stock, granted 1,209 RSUs

Rhea-AI Filing Summary

American Tower director Rajesh Kalathur reported new equity holdings in the company. On March 10, 2026, he received 1,209 shares of Common Stock as a stock-based award, which increased his direct holdings to 2,265 shares.

On the same date, he also made an open-market purchase of 2,671 shares of Common Stock at a price of $185.30 per share, bringing his direct ownership to 4,936 shares. In addition, 171 shares are held indirectly by his spouse’s revocable trust, for which he disclaims beneficial ownership.

The 1,209 shares were granted as restricted stock units under the 2007 Equity Incentive Plan and are scheduled to vest on March 10, 2027, with each unit representing a contingent right to receive one share of Common Stock.

Insider Trade Summary

Net Buyer: 2,671 shares ($494,936)

Net Buy 3 txns

Insider Kalathur Rajesh

Role Director

Bought 2,671 shs ($495K)

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	1,209	$0.00	--
Purchase	Common Stock	2,671	$185.30	$495K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 2,265 shares (Direct); Common Stock — 171 shares (Indirect, By Trust)

Footnotes (1)

1. These restricted stock units ("RSUs") were granted pursuant to the 2007 Equity Incentive Plan, as amended, and vest on March 10, 2027. Each RSU represents a contingent right to receive one share of Common Stock. The reporting person disclaims beneficial ownership in shares held by the reporting person's spouse's revocable trust.

Form 4 Insider Transactions: What Each Field Means →

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Kalathur Rajesh

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/10/2026

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	03/10/2026		A		1,209(1)	A	$0	2,265	D
Common Stock	03/10/2026		P		2,671	A	$185.3	4,936	D
Common Stock								171	I	By Trust(2)

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. These restricted stock units ("RSUs") were granted pursuant to the 2007 Equity Incentive Plan, as amended, and vest on March 10, 2027. Each RSU represents a contingent right to receive one share of Common Stock.

2. The reporting person disclaims beneficial ownership in shares held by the reporting person's spouse's revocable trust.

Remarks:

	/s/ Marina A. Breed, as attorney-in-fact	03/12/2026
	** 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 insider transactions did Rajesh Kalathur report for AMT on March 10, 2026?

Rajesh Kalathur reported a stock award and a share purchase on March 10, 2026. He received 1,209 restricted stock units and bought 2,671 American Tower Common Stock shares in the open market, expanding his overall direct equity position in the company.

How many American Tower shares did Rajesh Kalathur buy on the open market?

He bought 2,671 shares of American Tower Common Stock in an open-market transaction. The purchase price was $185.30 per share, and this transaction increased his direct holdings to 4,936 shares following the reported activity on March 10, 2026.

What are the terms of the 1,209 restricted stock units granted to Rajesh Kalathur at AMT?

He received 1,209 restricted stock units under the 2007 Equity Incentive Plan. These units vest on March 10, 2027, and each restricted stock unit represents a contingent right to receive one share of American Tower Common Stock upon vesting, subject to applicable plan conditions.

How many American Tower shares does Rajesh Kalathur hold directly after these transactions?

After the reported transactions, he directly holds 4,936 shares of American Tower Common Stock. This figure reflects both the stock-based award and the open-market purchase reported in the Form 4, as of the transaction date of March 10, 2026.

What indirect American Tower holdings are associated with Rajesh Kalathur through a trust?

An additional 171 American Tower shares are held indirectly by his spouse’s revocable trust. The filing states that Rajesh Kalathur disclaims beneficial ownership of these shares, indicating they are attributed to the spouse’s trust rather than to him personally.

Does the American Tower Form 4 show any insider share sales by Rajesh Kalathur?

The Form 4 does not report any share sales by Rajesh Kalathur. It shows a grant of 1,209 restricted stock units and an open-market purchase of 2,671 Common Stock shares, resulting in a net increase in his reported direct ownership position.