{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-032029","form_type":"8-K","ticker":"TMUS","cik":"0001283699","company_name":"T-Mobile US, Inc.","filed_at":"2025-02-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.185331+00:00","generated_at":"2026-05-26T06:48:41.689481+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"T-Mobile board members Westbrook and Gopalan to depart; Dannenfeldt nominated","bullets":["Kelvin Westbrook will not stand for re-election at 2025 Annual Meeting; departure effective after the meeting.","Srini Gopalan resigns from board effective Feb 28, 2025, to become T-Mobile's Chief Operating Officer.","Board intends to nominate Thomas Dannenfeldt (former Deutsche Telekom CFO) at the 2025 Annual Meeting.","Both departures are not the result of any disagreement with the company on operations or policies."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-032029","json":"https://secwatch.observer/filing/0001193125-25-032029.json","markdown":"https://secwatch.observer/filing/0001193125-25-032029.md","text":"https://secwatch.observer/filing/0001193125-25-032029.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525032029/0001193125-25-032029-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525032029/d910063d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-26T06:48:41.689481+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":"2188865e96","claim":"Srini Gopalan resigned as Director at T-Mobile US, Inc..","evidence_excerpt":"Additionally, on February 18, 2025, Srini Gopalan notified the Board of his decision to resign from the Board and its Compensation Committee, effective as of February 28, 2025, due to his acceptance of a new role at the Company as the Company’s Chief Operating Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525032029/0001193125-25-032029-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"749f973431","claim":"Kelvin Westbrook departed as Director at T-Mobile US, Inc..","evidence_excerpt":"On February 18, 2025, Kelvin Westbrook notified T-Mobile US, Inc. (the “Company”) of his decision to not to stand for re-election to the Board of Directors (the “Board”) of the Company at the 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/1283699/000119312525032029/0001193125-25-032029-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"not to stand for re-election"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"},{"claim_id":"c9bcb7c3a4","claim":"Srini Gopalan changed role as Chief Operating Officer at T-Mobile US, Inc..","evidence_excerpt":"due to his acceptance of a new role at the Company as the Company’s Chief Operating Officer.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1283699/000119312525032029/0001193125-25-032029-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"accepted role of"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}