---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-309718"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2025-12-05T23:59:59+00:00"
generated_at: "2026-05-16T14:10:54.247548+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# American Tower issues $850M 4.700% notes due 2032 to repay revolver

## Summary
- Issued $850M aggregate principal of 4.700% senior unsecured notes due December 15, 2032.
- Net proceeds of ~$839.5M after commissions; used to repay borrowings under $4B revolver.
- Notes redeemable at any time; make-whole premium if redeemed before October 15, 2032.
- Covenants limit mergers, asset sales, and liens; leverage test for liens at 3.5x Adjusted EBITDA.
- Change of Control triggers repurchase at 101% of principal plus accrued interest.

## SEC filing metadata
- accession: 0001193125-25-309718
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2025-12-05T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1053507/000119312525309718/0001193125-25-309718-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000119312525309718/d20014d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-309718
- JSON: https://secwatch.observer/filing/0001193125-25-309718.json
- Plain text: https://secwatch.observer/filing/0001193125-25-309718.txt

## Key facts
- Debt Financings
  AMERICAN TOWER CORP /MA/ incurred senior notes of $850.0 million aggregate principal amount at 4.700% per annum maturing December 15, 2032.
  - Instrument: senior notes
  - Principal: $850.0 million aggregate principal amount
  - Rate: 4.700% per annum
  - Maturity: December 15, 2032
  - Event: incurrence
  source text: On December 5, 2025, American Tower Corporation (the “Company”) completed a registered public offering of $850.0 million aggregate principal amount of its 4.700% senior unsecured notes due 2032 (the “Notes”), which resulted in aggregate net proceeds to the Company of approximately $839.5 million, after deducting commissions and estimated expenses. The Company intends to use the net proceeds to repay existing indebtedness under its $4.0 billion senior unsecured revolving credit facility, as amended and restated in December 2021, as further amended. The Company issued the Notes under an indenture dated as of June 2, 2025 (the “Base Indenture”), as supplemented by a supplemental indenture dated as of December 5, 2025 (the “Supplemental Indenture No. 1” and, together with the Base Indenture, the “Indenture”), each between the Company and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”). The following description of the Indenture is a summary and is qualified in its
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312525309718/0001193125-25-309718-index.htm

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