{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-390605","form_type":"8-K","ticker":"AMT","cik":"0001053507","company_name":"AMERICAN TOWER CORP /MA/","filed_at":"2026-09-14T20:16:17+00:00","discovered_at":"2026-09-14T20:17:08.551793+00:00","generated_at":"2026-09-14T20:17:18.503897+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"American Tower issues $1.6B in three senior note tranches","bullets":["Issued $500M 5.300% notes due 2031, $500M 5.560% notes due 2033, $600M 5.750% notes due 2036.","Net proceeds of approximately $1,579.9M after deducting commissions and estimated expenses.","Proceeds to be used to repay $600M 1.450% notes due 2026 and borrowings under $6.0B revolving credit facility.","Notes are senior unsecured; redeemable at make-whole premium before certain dates, change-of-control repurchase at 101%."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-390605","json":"https://secwatch.observer/filing/0001193125-26-390605.json","markdown":"https://secwatch.observer/filing/0001193125-26-390605.md","text":"https://secwatch.observer/filing/0001193125-26-390605.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1053507/000119312526390605/0001193125-26-390605-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1053507/000119312526390605/d156192d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-14T20:17:18.503897+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"}