Director sells $17.2M in company shares

Filer reported an insider sale of common stock.

Rhea-AI Filing Summary

Filer reported an insider sale of common stock. The filing shows G M. Sievert sold 80,000 common shares on 02/19/2026 for an aggregate amount of $17,195,281.37. The record also lists restricted stock vesting dated 11/09/2025 associated with compensation.

Insights

Corporate Governance Specialist

Insider executed a large single transaction of common stock.

The filing lists 80,000 common shares sold by G M. Sievert on 02/19/2026 for $17,195,281.37. This is a factual report of a reported disposition under the securities rules.

Timing and motivations are not stated in the excerpt; subsequent filings or disclosures would be the source for any rule‑based restrictions or planned sales information.

FAQ

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

What did the TMUS filing report about G M. Sievert?

The filing reports a sale of 80,000 common shares by G M. Sievert on 02/19/2026. The record shows an aggregate amount of $17,195,281.37 associated with that sale.

Does the filing show any restricted stock activity for TMUS?

Yes. The excerpt lists restricted stock vesting dated 11/09/2025 tied to compensation. The vesting entry appears under the securities to be sold section in the provided lines.

Who is the broker or holder listed in the filing?

The filing includes Fidelity Brokerage Services LLC at the address shown and references common shares in a NASDAQ‑listed account as part of the transaction details on 02/23/2026 in the excerpt.

What is the transaction date and reported proceeds in the filing?

The reported transaction date is 02/19/2026 and the filing shows an aggregate amount of $17,195,281.37 related to the 80,000 common shares sold.

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

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Accepted by SEC EDGAR 02/23/2026 - 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	13911	3061330.98	1101862739	02/23/2026	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			13911	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

144: Remarks and Signature

Remarks
Date of Notice	02/23/2026
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/ Gerardo Ibarra-Munoz, 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)