Pamela D. A. Reeve - 28 Feb 2024 Form 4 Insider Report for AMERICAN TOWER CORP /MA/ (AMT)

Role: Director
Signature: /s/ Marina A. Breed, as attorney-in-fact
Issuer symbol: AMT
Transactions as of: 28 Feb 2024
Net transactions value: -$552,301
Form type: 4
Filing time: 01 Mar 2024, 17:39:22 UTC
Previous filing: 14 Mar 2023
Next filing: 12 Mar 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMT	Common Stock	Options Exercise	$410,284	+5,054	+27%	$81.18	23,599	28 Feb 2024	Direct
transaction	AMT	Common Stock	Sale	$962,585	-5,054	-21%	$190.46	18,545	28 Feb 2024	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AMT	Option to Purchase Common Stock	Options Exercise	$0	-5,054	-100%	$0.000000^*	0	28 Feb 2024	Common Stock	5,054	$81.18	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the weighted average price of shares sold in multiple same-day transactions at prices ranging from $190.45 to $190.52 per share.
F2	This option was granted pursuant to the 2007 Equity Incentive Plan, as amended.