---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-256682"
form_type: "8-K"
ticker: "AMT"
cik: "0001053507"
company_name: "AMERICAN TOWER CORP /MA/"
filed_at: "2022-10-03T23:59:59+00:00"
generated_at: "2026-06-23T05:49:18.600168+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# American Tower announces GC transition: DiSanto retiring, Dowling appointed effective Jan 1, 2023

## Summary
- Ed DiSanto to retire as EVP, Chief Administrative Officer, General Counsel and Secretary effective Jan 1, 2023; becomes Special Advisor to CEO.
- Ruth Dowling, internal with over 10 years at American Tower, succeeds DiSanto in the same roles effective Jan 1, 2023.
- DiSanto joined in 2007; Dowling previously General Counsel for Latin America, Europe and Africa regions.

## SEC filing metadata
- accession: 0001193125-22-256682
- form_type: 8-K
- ticker: AMT
- cik: 0001053507
- company_name: AMERICAN TOWER CORP /MA/
- filed_at: 2022-10-03T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1053507/000119312522256682/0001193125-22-256682-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1053507/000119312522256682/d250588d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-256682
- JSON: https://secwatch.observer/filing/0001193125-22-256682.json
- Plain text: https://secwatch.observer/filing/0001193125-22-256682.txt

## Key facts
- Executive change
  Edmund DiSanto changed role as Executive Vice President, Special Advisor and Counsel to the Chief Executive Officer at AMERICAN TOWER CORP /MA/.
  - Action: assumed
  - Role: Executive Vice President, Special Advisor and Counsel to the Chief Executive Officer
  source text: To assist in the transition of responsibilities, Mr. DiSanto will assume the new role of Executive Vice President, Special Advisor and Counsel to the Chief Executive Officer, effective January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312522256682/0001193125-22-256682-index.htm
- Executive change
  Ruth Dowling was appointed as Executive Vice President, Chief Administrative Officer, General Counsel and Secretary at AMERICAN TOWER CORP /MA/.
  - Action: appointed
  - Role: Executive Vice President, Chief Administrative Officer, General Counsel and Secretary
  source text: The Company’s Board of Directors has appointed Ruth Dowling as the Company’s Executive Vice President, Chief Administrative Officer, General Counsel and Secretary, effective January 1, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1053507/000119312522256682/0001193125-22-256682-index.htm

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