TMUS insider files Form 144 to sell shares

G. M. Sievert reported proposed sales of T-Mobile US common stock.

Rhea-AI Filing Summary

G. M. Sievert reported proposed sales of T-Mobile US common stock. The filing lists two recent transactions: 80,000 shares on 02/19/2026 and 13,911 shares on 02/23/2026, with associated amounts shown. The notice also lists 1,089 restricted shares vesting on 11/09/2025 issued as compensation. The broker shown is Fidelity Brokerage Services LLC.

Insights

Corporate Governance Analyst

Routine Form 144 reports insider share dispositions and a small compensation vesting.

The filing lists two reported dispositions by G. M. Sievert: 80,000 shares on 02/19/2026 and 13,911 shares on 02/23/2026, including numeric amounts adjacent to each transaction in the excerpt.

It also records 1,089 restricted shares vesting on 11/09/2025 labeled as compensation. Timing and cash‑flow treatment are presented as transaction lines in the excerpt; subsequent filings would show actual settlement or sales details.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What transactions does the TMUS Form 144 show?

The filing reports two reported dispositions: 80,000 shares on 02/19/2026 and 13,911 shares on 02/23/2026. The excerpt pairs each share count with numeric amounts for those transactions.

Who is the seller listed in the TMUS Form 144?

The seller is listed as G. M. Sievert at an address in Bellevue, WA. The brokerage firm shown is Fidelity Brokerage Services LLC, located in Smithfield, RI.

Does the filing show any shares issued as compensation for TMUS?

Yes; the excerpt lists 1,089 restricted shares with a vesting date of 11/09/2025 and labels the item as compensation from the issuer.

Are the dollar amounts for the sales shown in the excerpt?

The excerpt includes numeric amounts adjacent to the reported share sales—for example, 80,000 is followed by 17195281.37—which appear to be transaction‑level numbers recorded in the filing excerpt.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 02/24/2026 - 04:19 PM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001182438
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	T-Mobile US, Inc.
SEC File Number	001-33409
Address of Issuer	12920 SE 38TH STREET BELLEVUE WASHINGTON 98006
Phone	800-318-9270
Name of Person for Whose Account the Securities are To Be Sold	SIEVERT G MICHAEL
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	1089	241593.82	1101862739	02/24/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	11/09/2025	Restricted Stock Vesting	Issuer			1089	11/09/2025	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
G M. Sievert 12920 SE 38th Street Bellevue WA 98006-1350	Common	02/19/2026	80000	17195281.37
G M. Sievert 12920 SE 38th Street Bellevue WA 98006-1350	Common	02/23/2026	13911	3061330.98

144: Remarks and Signature

Remarks
Date of Notice	02/24/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for G M. Sievert.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)