{"schema_version":"secwatch.filing_event.v1","accession":"0001053507-25-000129","form_type":"8-K","ticker":"AMT","cik":"0001053507","company_name":"AMERICAN TOWER CORP /MA/","filed_at":"2025-09-05T23:59:59+00:00","discovered_at":"2026-05-14T18:02:43.213910+00:00","generated_at":"2026-05-17T07:50:19.441868+00:00","sec_items":["7.01"],"event_type":"litigation","sentiment":"negative","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"American Tower discloses legal dispute with AT&T Mexico; ~$300M tenant revenue at risk","bullets":["AT&T Mexico withholding tower rents since start 2025; represented ~$300M tenant revenue in 2024.","Company incurred $10M reserves in Q2 2025 and expects additional reserves if withholding continues.","Arbitration hearing scheduled for August 2026; company asserts valid defenses and enforceable MLA.","DISH represents ~2% of total annual property revenue and ~4% of U.S. & Canada property revenue."],"urls":{"canonical":"https://secwatch.observer/filing/0001053507-25-000129","json":"https://secwatch.observer/filing/0001053507-25-000129.json","markdown":"https://secwatch.observer/filing/0001053507-25-000129.md","text":"https://secwatch.observer/filing/0001053507-25-000129.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1053507/000105350725000129/0001053507-25-000129-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1053507/000105350725000129/amt-20250903.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T07:50:19.441868+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}