---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-054806"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2025-03-14T23:59:59+00:00"
generated_at: "2026-05-24T17:45:40.991425+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# American Tower issues $1B in senior notes (4.9% due 2030, 5.35% due 2035) to refinance

## Summary
- Issued $650M 4.900% notes due 2030 and $350M 5.350% notes due 2035; net proceeds ~$988.9M.
- Proceeds to repay $750M of 2.400% notes due 2025 and reduce revolving credit facility borrowings.
- Notes are senior unsecured, include make-whole call protection; change-of-control put at 101%.
- Interest payable semi-annually from Sept 15, 2025; first accrual from March 14, 2025.

## SEC filing metadata
- accession: 0001193125-25-054806
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2025-03-14T23:59:59+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/1053507/000119312525054806/0001193125-25-054806-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000119312525054806/d904653d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-054806
- JSON: https://secwatch.observer/filing/0001193125-25-054806.json
- Plain text: https://secwatch.observer/filing/0001193125-25-054806.txt

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