---
schema_version: "secwatch.filing_event.v1"
accession: "0001053507-23-000132"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2023-06-29T23:59:59+00:00"
generated_at: "2026-06-13T14:37:08.043306+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# AMT extends $10B credit facilities maturity; repays $1.5B term loan

## Summary
- Extended maturity on $6B multicurrency facility to July 2026 and $4B facility to July 2028.
- Replaced LIBOR with Adjusted Term SOFR as pricing benchmark.
- Repaid all outstanding under $1.5B unsecured term loan on June 27, 2023.
- All other material terms of the loans remain unchanged.

## SEC filing metadata
- accession: 0001053507-23-000132
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2023-06-29T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 1.02, 2.03
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/0001053507-23-000132-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/amt-20230627.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001053507-23-000132
- JSON: https://secwatch.observer/filing/0001053507-23-000132.json
- Plain text: https://secwatch.observer/filing/0001053507-23-000132.txt

## Key facts
- Material Agreements
  AMERICAN TOWER CORP /MA/ amended 2021 Multicurrency Credit Facility Amendment with Toronto Dominion (Texas) LLC valued at Extended maturity to July 1, 2026; commitments of $6.0 billion; replaced LIBOR with Adjusted Term SO (effective 2023-06-29).
  - Action: amendment
  - Agreement: credit facility
  - Counterparty: Toronto Dominion (Texas) LLC
  - Value: Extended maturity to July 1, 2026; commitments of $6.0 billion; replaced LIBOR with Adjusted Term SO
  - Effective: 2023-06-29
  source text: On June 29, 2023, American Tower Corporation (the “Company”) entered into three separate amendment agreements (each an “Amendment” and collectively, the “Amendments”) to amend the agreements for each of its (i) multicurrency senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with Toronto Dominion (Texas) LLC (“TD”) as Administrative Agent (as defined therein) (the “2021 Multicurrency Credit Facility”), (ii) senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with TD as Administrative Agent (as defined therein) (the “2021 Credit Facility”) and (iii) unsecured term loan, as previously amended and restated on December 8, 2021, with Mizuho Bank, Ltd. (“Mizuho”) as Administrative Agent (as defined therein) (the “2021 Term Loan” and, collectively with the 2021 Multicurrency Credit Facility and the 2021 Credit Facility, the “Loans”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/0001053507-23-000132-index.htm
- Material Agreements
  AMERICAN TOWER CORP /MA/ amended 2021 Term Loan Amendment with Mizuho Bank, Ltd. valued at Replaced LIBOR with Adjusted Term SOFR; other terms remain in effect. (effective 2023-06-29).
  - Action: amendment
  - Agreement: credit facility
  - Counterparty: Mizuho Bank, Ltd.
  - Value: Replaced LIBOR with Adjusted Term SOFR; other terms remain in effect.
  - Effective: 2023-06-29
  source text: On June 29, 2023, American Tower Corporation (the “Company”) entered into three separate amendment agreements (each an “Amendment” and collectively, the “Amendments”) to amend the agreements for each of its (i) multicurrency senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with Toronto Dominion (Texas) LLC (“TD”) as Administrative Agent (as defined therein) (the “2021 Multicurrency Credit Facility”), (ii) senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with TD as Administrative Agent (as defined therein) (the “2021 Credit Facility”) and (iii) unsecured term loan, as previously amended and restated on December 8, 2021, with Mizuho Bank, Ltd. (“Mizuho”) as Administrative Agent (as defined therein) (the “2021 Term Loan” and, collectively with the 2021 Multicurrency Credit Facility and the 2021 Credit Facility, the “Loans”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/0001053507-23-000132-index.htm
- Material Agreements
  AMERICAN TOWER CORP /MA/ terminated 2021 USD Two Year Delayed Draw Term Loan with Not disclosed valued at Repaid all outstanding amounts under $1.5 billion unsecured term loan. (effective 2023-06-27).
  - Action: termination
  - Agreement: credit facility
  - Counterparty: Not disclosed
  - Value: Repaid all outstanding amounts under $1.5 billion unsecured term loan.
  - Effective: 2023-06-27
  source text: On June 27, 2023, the Company repaid all outstanding amounts under its $1.5 billion unsecured term loan entered into in December 2021 (the “2021 USD Two Year Delayed Draw Term Loan”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/0001053507-23-000132-index.htm
- Material Agreements
  AMERICAN TOWER CORP /MA/ amended 2021 Credit Facility Amendment with Toronto Dominion (Texas) LLC valued at Extended maturity to July 1, 2028; commitments of $4.0 billion; replaced LIBOR with Adjusted Term SO (effective 2023-06-29).
  - Action: amendment
  - Agreement: credit facility
  - Counterparty: Toronto Dominion (Texas) LLC
  - Value: Extended maturity to July 1, 2028; commitments of $4.0 billion; replaced LIBOR with Adjusted Term SO
  - Effective: 2023-06-29
  source text: On June 29, 2023, American Tower Corporation (the “Company”) entered into three separate amendment agreements (each an “Amendment” and collectively, the “Amendments”) to amend the agreements for each of its (i) multicurrency senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with Toronto Dominion (Texas) LLC (“TD”) as Administrative Agent (as defined therein) (the “2021 Multicurrency Credit Facility”), (ii) senior unsecured revolving credit facility, as previously amended and restated on December 8, 2021, with TD as Administrative Agent (as defined therein) (the “2021 Credit Facility”) and (iii) unsecured term loan, as previously amended and restated on December 8, 2021, with Mizuho Bank, Ltd. (“Mizuho”) as Administrative Agent (as defined therein) (the “2021 Term Loan” and, collectively with the 2021 Multicurrency Credit Facility and the 2021 Credit Facility, the “Loans”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000105350723000132/0001053507-23-000132-index.htm

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