---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-154223"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2023-05-25T23:59:59+00:00"
generated_at: "2026-06-14T14:04:13.731949+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.35
calibrated_materiality_score: 0.35
confidence: "high"
source: SEC EDGAR
---

# American Tower issues $1.5B of 5.250% and 5.550% senior notes due 2028/2033

## Summary
- $650M of 5.250% notes due 2028 and $850M of 5.550% notes due 2033 issued in registered public offering.
- Net proceeds of ~$1.482B to repay existing debt under $6.0B senior unsecured revolving credit facility.
- Notes are senior unsecured; callable at make-whole premium prior to June 15, 2028 (2028 notes) or April 15, 2033 (2033 notes).
- Covenants include a 3.5x Adjusted EBITDA lien limit and a change-of-control put at 101% of principal.
- Interest payable semi-annually on Jan 15 and Jul 15, beginning Jan 15, 2024.

## SEC filing metadata
- accession: 0001193125-23-154223
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2023-05-25T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.35
- calibrated_materiality_score: 0.35
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1053507/000119312523154223/0001193125-23-154223-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000119312523154223/d482735d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-154223
- JSON: https://secwatch.observer/filing/0001193125-23-154223.json
- Plain text: https://secwatch.observer/filing/0001193125-23-154223.txt

## Key facts
- Debt Financings
  AMERICAN TOWER CORP /MA/ incurred senior notes of $650.0 million aggregate principal amount of its 5.250% senior unsecured notes due 2028 and $850.0 million aggregate pri with U.S. Bank Trust Company, National Association at 5.250% per annum for the 2028 notes and 5.550% per annum for the 2033 notes maturing July 15, 2028 (2028 notes) and July 15, 2033 (2033 notes).
  - Instrument: senior notes
  - Principal: $650.0 million aggregate principal amount of its 5.250% senior unsecured notes due 2028 and $850.0 million aggregate pri
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 5.250% per annum for the 2028 notes and 5.550% per annum for the 2033 notes
  - Maturity: July 15, 2028 (2028 notes) and July 15, 2033 (2033 notes)
  - Event: incurrence
  source text: On May 25, 2023, American Tower Corporation (the “Company”) completed a registered public offering of $650.0 million aggregate principal amount of its 5.250% senior unsecured notes due 2028 (the “2028 notes”) and $850.0 million aggregate principal amount of its 5.550% senior unsecured notes due 2033 (the “2033 notes” and, together with the 2028 notes, the “Notes”), which resulted in aggregate net proceeds to the Company of approximately $1,481.9 million, after deducting commissions and estimated expenses.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312523154223/0001193125-23-154223-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.