---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-273900"
form_type: "8-K"
ticker: "TMUS"
cik: "0001283699"
company_name: "T-Mobile US, Inc."
filed_at: "2024-12-10T23:59:59+00:00"
generated_at: "2026-05-29T05:03:21.969753+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# T-Mobile CEO clarifies Q4 trends and reaffirms 2024 guidance of 3M postpaid phone net adds

## Summary
- CEO Sievert at UBS conference states Q4 is trending at least in line with prior expectations, possibly better.
- Reiterates full-year 2024 guidance: ~3M postpaid phone net additions and postpaid ARPA growth of ~3%.
- Reaffirms multi-year targets through 2027: service revenue CAGR ~5%, Adjusted EBITDA CAGR ~7%.
- Business plan supports ~$80B capacity for investments and shareholder returns through 2027.
- Also notes highest share of switchers in Q3 since the merger and opportunity in enterprise & large government.

## SEC filing metadata
- accession: 0001193125-24-273900
- form_type: 8-K
- ticker: TMUS
- cik: 0001283699
- company_name: T-Mobile US, Inc.
- filed_at: 2024-12-10T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1283699/000119312524273900/0001193125-24-273900-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1283699/000119312524273900/d879496d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-273900
- JSON: https://secwatch.observer/filing/0001193125-24-273900.json
- Plain text: https://secwatch.observer/filing/0001193125-24-273900.txt

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