{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-187812","form_type":"8-K","ticker":"TMUS","cik":"0001283699","company_name":"T-Mobile US, Inc.","filed_at":"2025-08-25T23:59:59+00:00","discovered_at":"2026-05-14T18:02:43.581147+00:00","generated_at":"2026-05-17T10:10:19.157909+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"T-Mobile appoints two presidents, Callie Field steps down from Business Group","bullets":["André Almeida appointed President of Growth and Emerging Businesses effective Sept 1, 2025; resigns from Board Aug 31.","John Saw promoted to President of Technology, replacing retiring Ulf Ewaldsson.","Callie Field steps down as President, Business Group on Sept 30, 2025; remains strategic advisor through Mar 31, 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-187812","json":"https://secwatch.observer/filing/0001193125-25-187812.json","markdown":"https://secwatch.observer/filing/0001193125-25-187812.md","text":"https://secwatch.observer/filing/0001193125-25-187812.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525187812/0001193125-25-187812-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525187812/d75360d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T10:10:19.157909+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"}