---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-205004"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2025-09-16T23:59:59+00:00"
generated_at: "2026-05-17T06:26:23.087657+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# American Tower issues $575M in senior notes due 2030 and 2035

## Summary
- Issued $200M of 4.900% senior unsecured notes due 2030 and $375M of 5.350% notes due 2035.
- Net proceeds of ~$587.8M after deducting commissions and estimated expenses.
- Proceeds will repay existing borrowings under the $4.0B revolver and for general corporate purposes.
- Both new notes are fungible with existing series of the same maturity and rate issued March 2025.
- Notes are redeemable at make-whole premium prior to Feb 2030 (2030 notes) or Dec 2034 (2035 notes).

## SEC filing metadata
- accession: 0001193125-25-205004
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2025-09-16T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 1.01, 2.03, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1053507/000119312525205004/0001193125-25-205004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000119312525205004/d875782d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-205004
- JSON: https://secwatch.observer/filing/0001193125-25-205004.json
- Plain text: https://secwatch.observer/filing/0001193125-25-205004.txt

## Key facts
- Debt Financings
  AMERICAN TOWER CORP /MA/ incurred senior notes of $200.0 million aggregate principal amount of its 4.900% senior unsecured notes due 2030 with U.S. Bank Trust Company, National Association at 4.900% per annum maturing March 15, 2030.
  - Instrument: senior notes
  - Principal: $200.0 million aggregate principal amount of its 4.900% senior unsecured notes due 2030
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 4.900% per annum
  - Maturity: March 15, 2030
  - Event: incurrence
  source text: On September 16, 2025, American Tower Corporation (the "Company") completed a registered public offering of $200.0 million aggregate principal amount of its 4.900% senior unsecured notes due 2030
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312525205004/0001193125-25-205004-index.htm
- Debt Financings
  AMERICAN TOWER CORP /MA/ incurred senior notes of $375.0 million aggregate principal amount of its 5.350% senior unsecured notes due 2035 with U.S. Bank Trust Company, National Association at 5.350% per annum maturing March 15, 2035.
  - Instrument: senior notes
  - Principal: $375.0 million aggregate principal amount of its 5.350% senior unsecured notes due 2035
  - Counterparty: U.S. Bank Trust Company, National Association
  - Rate: 5.350% per annum
  - Maturity: March 15, 2035
  - Event: incurrence
  source text: On September 16, 2025, American Tower Corporation (the "Company") completed a registered public offering of $200.0 million aggregate principal amount of its 4.900% senior unsecured notes due 2030 (the "2030 notes") and $375.0 million aggregate principal amount of its 5.350% senior unsecured notes due 2035 (the "2035 notes" and, together with the 2030 notes, the "Notes")
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312525205004/0001193125-25-205004-index.htm

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