---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-209990"
form_type: "8-K"
ticker: "TMUS"
cik: "0001283699"
company_name: "T-Mobile US, Inc."
filed_at: "2025-09-22T23:59:59+00:00"
generated_at: "2026-05-17T05:57:20.615759+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# T-Mobile appoints Srinivasan Gopalan as President & CEO effective Nov 1, 2025; Sievert moves to Vice Chairman

## Summary
- Gopalan gets base salary $1.4M, target STI 250% of base (2026 onward), annual LTI target >$19.5M with peer-based escalators.
- Sievert becomes Vice Chairman with base $7M, no further STI or LTI; receives cash severance and equity acceleration upon effective date.
- Gopalan receives one-time True-Up LTI awards worth $2.9M and Transformation Award of $10M in performance-based RSUs.
- Osvaldik employment term extended to July 1, 2027; new Expiration Date Payment capped at $10M for 2023 Special PRSU.
- Katz gets base salary >$975k, annual LTI target >$8.575M, with percentile-based increases through 2028+.

## SEC filing metadata
- accession: 0001193125-25-209990
- form_type: 8-K
- ticker: TMUS
- cik: 0001283699
- company_name: T-Mobile US, Inc.
- filed_at: 2025-09-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1283699/000119312525209990/0001193125-25-209990-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1283699/000119312525209990/d916281d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-209990
- JSON: https://secwatch.observer/filing/0001193125-25-209990.json
- Plain text: https://secwatch.observer/filing/0001193125-25-209990.txt

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