---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-190499"
form_type: "8-K"
ticker: "TMUS"
cik: "0001283699"
company_name: "T-Mobile US, Inc."
filed_at: "2023-07-20T23:59:59+00:00"
generated_at: "2026-06-13T05:27:50.026654+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# T-Mobile appoints IBM CFO James Kavanaugh to Board of Directors

## Summary
- James J. Kavanaugh (IBM CFO) elected to T-Mobile board effective July 18, 2023.
- He will serve on the Audit Committee effective August 1, replacing Kelvin Westbrook.
- Appointed as Deutsche Telekom designee under Stockholders' Agreement.
- Received 1,582 restricted stock units vesting one year after 2023 annual meeting.

## SEC filing metadata
- accession: 0001193125-23-190499
- form_type: 8-K
- ticker: TMUS
- cik: 0001283699
- company_name: T-Mobile US, Inc.
- filed_at: 2023-07-20T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1283699/000119312523190499/0001193125-23-190499-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1283699/000119312523190499/d372769d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-190499
- JSON: https://secwatch.observer/filing/0001193125-23-190499.json
- Plain text: https://secwatch.observer/filing/0001193125-23-190499.txt

## Key facts
- Executive change
  James J. Kavanaugh was elected as Director at T-Mobile US, Inc..
  - Action: elected
  - Role: Director
  source text: On July 18, 2023, James J. Kavanaugh was elected to the Board of Directors (the “Board”) of T-Mobile US, Inc. (the “Company”), effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1283699/000119312523190499/0001193125-23-190499-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.