American Tower insider files initial Form 3

American Tower Corporation executive Paul Blanchett, the company’s SVP & Chief Accounting Officer, has filed an initial Form 3 statement of beneficial ownership.

Rhea-AI Filing Summary

American Tower Corporation executive Paul Blanchett, the company’s SVP & Chief Accounting Officer, has filed an initial Form 3 statement of beneficial ownership. This filing establishes his status as an insider for reporting purposes. The provided data shows no reported transactions or derivative positions.

Key Figures

Buy transactions reported: 0 transactions Sell transactions reported: 0 transactions Derivative transactions reported: 0 transactions

3 metrics

Buy transactions reported 0 transactions Form 3 transactionSummary buyCount

Sell transactions reported 0 transactions Form 3 transactionSummary sellCount

Derivative transactions reported 0 transactions Form 3 transactionSummary derivativeTransactionCount

Key Terms

Form 3, beneficial ownership, SVP & Chief Accounting Officer

3 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3):"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

beneficial ownership regulatory

"initial statement of beneficial ownership of securities"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

SVP & Chief Accounting Officer financial

""officer_title": "SVP & Chief Accounting Officer""

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does the AMT Form 3 filed by Paul Blanchett show?

The Form 3 for AMT reports Paul Blanchett’s insider status. He is listed as Senior Vice President & Chief Accounting Officer. The provided data shows no transactions or derivative positions, serving mainly to establish his obligation to report future trades.

Did Paul Blanchett report any AMT share purchases or sales on this Form 3?

No purchases or sales are shown in the provided Form 3 data. The transaction summary reports zero buy, sell, acquire, dispose, and exercise counts, indicating no trades were reported in this initial ownership filing.

What is Paul Blanchett’s role at American Tower (AMT)?

Paul Blanchett is listed as SVP & Chief Accounting Officer of AMT. This officer title appears in the filing and identifies him as a senior financial executive who is subject to insider reporting rules for future share transactions.

Why is a Form 3 important for American Tower (AMT) insiders?

Form 3 establishes an insider’s baseline beneficial ownership status. For AMT, it formally identifies executives like Paul Blanchett as reporting persons, creating a starting point for tracking and disclosing future transactions in company securities.

Does the AMT Form 3 filing include any derivative securities for Paul Blanchett?

The provided Form 3 data shows no derivative securities listed. The derivative summary is empty and derivativeTransactionCount is zero, indicating no options, warrants, or similar instruments are reported in this initial statement.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/30/2026 - 04:12 PM EDT Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Blanchett Paul

(Last) (First) (Middle)

222 BERKELEY STREET

(Street)

BOSTON MASSACHUSETTS 02116

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
04/27/2026

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

3a. Foreign Trading Symbol

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

4. 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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

No securities are beneficially owned.

No securities are beneficially owned.

	/s/ Marina A. Breed, as attorney-in-fact	04/30/2026
	** 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 5 (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.
* Form 3: SEC 1473 (03-26)