G. Michael Sievert - 23 Feb 2026 Form 4 Insider Report for T-Mobile US, Inc. (TMUS)

Reporting relationship: Director
Issuer ticker: TMUS
Reported as of: 23 Feb 2026
Net transaction value: -$3,302,988
SEC form: 4
Accepted by SEC: 25 Feb 2026, 18:15:36 UTC
Prior SEC filing: 23 Feb 2026
Next SEC filing: 27 Mar 2026
Source filing: View source filing
Reporting owner signature: /s/ Frederick Williams, Attorney-in-Fact

Key filing fact

G. Michael Sievert filed Form 4 for T-Mobile US, Inc. (TMUS) on 25 Feb 2026.

Key facts

This page summarizes G. Michael Sievert's Form 4 filing for T-Mobile US, Inc. (TMUS).
2 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 25 Feb 2026, 18:15.

Change

Previous filing in this sequence was filed on 23 Feb 2026.
Current net transaction value: -$3,302,988.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001182438 Primary reporting owner

SIEVERT G MICHAEL

Relationship: Director
Address: C/O T-MOBILE US, INC., 12920 SE 38TH STREET, BELLEVUE
Signature: /s/ Frederick Williams, Attorney-in-Fact
Signature date: 25 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TMUS transaction

Common Stock

Sale

Transaction value: $3,061,394
Shares: -13,911
Change %: -9.9%
Price: $220.07
Shares after: 126,785
Date: 23 Feb 2026
Ownership: Direct
Footnotes: F1

TMUS transaction

Common Stock

Sale

Transaction value: $241,595
Shares: -1,089
Change %: -0.86%
Price: $221.85
Shares after: 125,696
Date: 24 Feb 2026
Ownership: Direct
Footnotes: F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote F1

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $220.00 to $220.56. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.

Footnote F2

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $220.83 to $222.95. The reporting person undertakes to provide the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the range set forth on this footnote.