{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-275230","form_type":"8-K","ticker":"TMUS","cik":"0001283699","company_name":"T-Mobile US, Inc.","filed_at":"2021-09-16T23:59:59+00:00","discovered_at":"2026-05-14T18:04:17.506491+00:00","generated_at":"2026-06-29T03:09:09.918624+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"T-Mobile names Mark Nelson EVP & GC; current GC David Miller to retire April 2022","bullets":["Mark W. Nelson appointed EVP and General Counsel, effective October 11, 2021.","David Miller to retire on April 1, 2022 after 26 years; will serve as strategic advisor.","Broady Hodder elected corporate secretary, reporting to Nelson.","Nelson previously advised T-Mobile on MetroPCS and Sprint mergers.","Miller led legal through T-Mobile/Sprint merger, Un-Carrier strategy, and MetroPCS acquisition."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-275230","json":"https://secwatch.observer/filing/0001193125-21-275230.json","markdown":"https://secwatch.observer/filing/0001193125-21-275230.md","text":"https://secwatch.observer/filing/0001193125-21-275230.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1283699/000119312521275230/0001193125-21-275230-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1283699/000119312521275230/d234276d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T03:09:09.918624+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":"25f43615e8","claim":"David A. Miller departed as Executive Vice President, General Counsel and Secretary at T-Mobile US, Inc..","evidence_excerpt":"On September 10, 2021, David A. Miller, Executive Vice President, General Counsel and Secretary of T-Mobile US, Inc. (the “Company”) notified the Company that he will retire from the Company effective April 1, 2022. Mr. Miller will transition out of his current position as the Company’s Executive Vice President, General Counsel and Secretary effective October 11, 2021, but remain with the Company as Executive Vice President and Strategic Advisor until his retirement date.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1283699/000119312521275230/0001193125-21-275230-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"will retire"},{"label":"Role","value":"Executive Vice President, General Counsel and Secretary"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}