(AMT)

Reporting relationship: Former Director
Issuer ticker: AMT
Reported as of: 20 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 May 2026, 16:09:32 UTC
Prior SEC filing: 12 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Marina A. Breed, as attorney-in-fact

Key filing fact

Robert D. Hormats filed Form 4 for AMERICAN TOWER CORP /MA/ (AMT) on 20 May 2026.

Key facts

This page summarizes Robert D. Hormats's Form 4 filing for AMERICAN TOWER CORP /MA/ (AMT).
0 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 20 May 2026, 16:09.

Change

Previous filing in this sequence was filed on 12 Mar 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001029613 Primary reporting owner

HORMATS ROBERT D

Relationship: Former Director
Address: 222 BERKELEY STREET, BOSTON
Signature: /s/ Marina A. Breed, as attorney-in-fact
Signature date: 20 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

AMT holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 9,597
Date: 20 May 2026
Ownership: Direct

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Section 16 status

Robert D. Hormats is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may still apply in specific circumstances.

SEC remarks

Robert D. Hormats did not stand for re-election at the issuer's 2026 Annual Meeting of Stockholders. Accordingly, effective May 20, 2026, Mr. Hormats is no longer a director of the issuer.