{"schema_version":"secwatch.filing_event.v1","accession":"0001053507-25-000087","form_type":"8-K","ticker":"AMT","cik":"0001053507","company_name":"AMERICAN TOWER CORP /MA/","filed_at":"2025-03-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:02.819512+00:00","generated_at":"2026-05-24T09:41:31.235010+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Director JoAnn A. Reed will not stand for re-election at 2025 Annual Meeting","bullets":["JoAnn A. Reed notified the Corporate Secretary on March 17, 2025 of her decision.","Her decision was not due to any disagreement with the Company.","She will continue as Audit Committee member until the 2025 Annual Meeting."],"urls":{"canonical":"https://secwatch.observer/filing/0001053507-25-000087","json":"https://secwatch.observer/filing/0001053507-25-000087.json","markdown":"https://secwatch.observer/filing/0001053507-25-000087.md","text":"https://secwatch.observer/filing/0001053507-25-000087.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1053507/000105350725000087/0001053507-25-000087-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1053507/000105350725000087/amt-20250317.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-24T09:41:31.235010+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":[{"claim_id":"9b4d5ebcba","claim":"JoAnn A. Reed departed as Director at AMERICAN TOWER CORP /MA/.","evidence_excerpt":"On March 17, 2025, JoAnn A. Reed notified the Corporate Secretary of American Tower Corporation (the “Company”) of her decision to not stand for re-election at the Company’s 2025 Annual Meeting of Stockholders (the “Annual Meeting”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1053507/000105350725000087/0001053507-25-000087-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"not stand for re-election"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}