TMUS insider reports RSU vesting, tax withholding, and share gift

Rhea-AI Filing Summary

T-Mobile US, Inc. (TMUS) insider filed a Form 4 detailing equity award vesting, tax withholding, and a gift. On November 9, 2025, the reporting person acquired 135,915 shares at $0 upon vesting of performance-based RSUs. To cover taxes, the issuer withheld 44,140.077 shares and 53,482.554 shares at $207 per share; these were not open market sales. On November 10, 2025, 43,318 shares were transferred as a gift. Following the reported transactions, direct beneficial ownership stood at 331,195.945 shares.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

SIEVERT G MICHAEL

(Last) (First) (Middle)

C/O T-MOBILE US, INC.

12920 SE 38TH STREET

(Street)

BELLEVUE WA 98006

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
T-Mobile US, Inc. [ TMUS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/09/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/09/2025		F		44,140.077(1)	D	$207	292,081.499	D
Common Stock	11/09/2025		A		135,915(2)	A	$0	427,996.499	D
Common Stock	11/09/2025		F		53,482.554(3)	D	$207	374,513.945	D
Common Stock	11/10/2025		G		43,318	D	$0	331,195.945	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents shares withheld for payment of taxes on vesting of restricted stock units; not an open market transaction.

2. Represents performance-based restricted stock units earned under the issuer's 2013 Omnibus Incentive Plan or 2023 Incentive Award Plan that vested on November 9, 2025, pursuant to that certain Amended and Restated Employment Agreement, dated as of March 9, 2023, as amended by the Amendment, dated as of September 19, 2025, by and between the issuer and G. Michael Sievert

3. Represents shares withheld for payment of taxes on vesting of performance-based restricted stock units; not an open market transaction.

Remarks:

	/s/ Frederick Williams, Attorney-in-Fact	11/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What did TMUS’s latest Form 4 report?

It reported RSU vesting with share delivery, tax withholding via share surrender, and a subsequent gift transfer by a director.

How many TMUS shares vested in the award on 11/09/2025?

The filing shows 135,915 shares were acquired at $0 upon RSU vesting.

What were the TMUS tax withholding amounts and price used?

Shares withheld were 44,140.077 and 53,482.554 at $207 per share, not open market transactions.

Did the Form 4 include any open market sales of TMUS stock?

No. The filing states the withholding entries were for taxes and not open market transactions.

Was there a gift of TMUS shares reported?

Yes. On 11/10/2025, 43,318 shares were transferred with transaction code G (gift).

What is the insider’s TMUS beneficial ownership after these transactions?

Direct beneficial ownership was 331,195.945 shares after the reported transactions.

What is the insider’s relationship to TMUS?

The reporting person is listed as a Director.