T-Mobile US (NASDAQ: TMUS) grants 40,966 RSUs to enterprise chief

Rhea-AI Filing Summary

Sambar Christopher reported acquisition or exercise transactions in this Form 4 filing.

Christopher Sambar, Chief Enterprise Officer of T-Mobile US, reported an award of 40,966 shares of common stock representing restricted stock units granted under the company’s 2023 Incentive Award Plan.

One-sixth of these units vest on each of six dates from February 1, 2027 through August 1, 2029, leaving him with 40,966 shares reported as directly owned after the grant.

Insider Trade Summary

Net Buyer: 40,966 shares

Net Buy 1 txn

Insider Sambar Christopher

Role Chief Enterprise Officer

Type	Security	Shares	Price	Value
Grant/Award	Common Stock F1	40,966	$0.00	$0.00

Holdings After Transaction: Common Stock — 40,966 shares (Direct)

Footnotes (1)

1. F1. Represents restricted stock units granted under the issuer's 2023 Incentive Award Plan, (the "Plan"); one-sixth of the units vest on each of February 1, 2027, August 1, 2027, February 1, 2028, August 1, 2028, February 1, 2029, August 1, 2029, subject to the terms of the Plan and related award agreement.

Key Figures

RSUs granted: 40,966 shares Price per share: $0.0000 Shares owned after transaction: 40,966 shares +2 more

5 metrics

RSUs granted 40,966 shares Restricted stock units granted to Christopher Sambar on 2026-08-01

Price per share $0.0000 Reported transaction price per share for the grant

Shares owned after transaction 40,966 shares Direct common stock reported following the award

Vesting start date February 1, 2027 First one-sixth of restricted stock units scheduled to vest

Final vesting date August 1, 2029 Last one-sixth of restricted stock units scheduled to vest

Key Terms

restricted stock units, 2023 Incentive Award Plan, vest

3 terms

restricted stock units financial

"Represents restricted stock units granted under the issuer's 2023 Incentive Award Plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

2023 Incentive Award Plan financial

"granted under the issuer's 2023 Incentive Award Plan"

vest financial

"one-sixth of the units vest on each of February 1, 2027, August 1, 2027"

A vest is the process by which an employee earns the right to receive certain benefits or ownership interests, such as stock or retirement funds, over time. It’s similar to earning a reward gradually, ensuring that the benefit becomes fully yours only after a set period or meeting specific conditions. This makes it important for investors because it determines when they can actually claim or use those benefits.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/04/2026 - 04:44 PM Accepted by SEC EDGAR 08/04/2026 - 04:44 PM Learn about SEC filing dates

FAQ

What insider transaction did T-Mobile US (TMUS) executive Christopher Sambar report?

Christopher Sambar, T-Mobile US’s Chief Enterprise Officer, reported a grant of 40,966 restricted stock units tied to company common stock. The award was made under the 2023 Incentive Award Plan and will vest in six equal installments between 2027 and 2029, subject to plan terms.

How many T-Mobile US (TMUS) shares were granted to Christopher Sambar in this Form 4?

The filing reports an equity award of 40,966 shares of T-Mobile US common stock in the form of restricted stock units. These units are scheduled to vest in six equal tranches on specified dates from February 1, 2027 through August 1, 2029 under the company’s incentive plan.

What is the vesting schedule for Christopher Sambar’s 40,966 RSUs at T-Mobile US (TMUS)?

The 40,966 restricted stock units vest one-sixth on each of February 1, 2027, August 1, 2027, February 1, 2028, August 1, 2028, February 1, 2029, and August 1, 2029. Vesting remains subject to the terms of T-Mobile US’s 2023 Incentive Award Plan and the related award agreement.

Was Christopher Sambar’s T-Mobile US (TMUS) Form 4 a market purchase or sale?

The reported transaction is a grant/award acquisition, not an open-market purchase or sale. It reflects restricted stock units awarded at a reported transaction price per share of $0.0000, consistent with equity compensation rather than a cash transaction in the market.

How many T-Mobile US (TMUS) shares does Christopher Sambar own after this grant?

After the reported award, Christopher Sambar is shown as directly owning 40,966 shares of T-Mobile US common stock. This post-transaction figure reflects the newly granted restricted stock units as reported in the Form 4’s non-derivative holdings table.

Under which plan were Christopher Sambar’s RSUs at T-Mobile US (TMUS) granted?

The restricted stock units were granted under T-Mobile US’s 2023 Incentive Award Plan. The filing notes that vesting of the award is subject to the terms of this plan and the related award agreement governing the equity compensation.

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

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

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^*

Sambar Christopher

(Last) (First) (Middle)

C/O T-MOBILE US, INC.

12920 SE 38TH STREET

(Street)

BELLEVUE WASHINGTON 98006

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2026

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

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

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

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	08/01/2026		A		40,966(1)	A	$0	40,966	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 restricted stock units granted under the issuer's 2023 Incentive Award Plan, (the "Plan"); one-sixth of the units vest on each of February 1, 2027, August 1, 2027, February 1, 2028, August 1, 2028, February 1, 2029, August 1, 2029, subject to the terms of the Plan and related award agreement.

Remarks:

	/s/ Frederick Williams, Attorney-in-Fact	08/04/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)