STOCK TITAN

T-Mobile US (TMUS) executive files Form 3 with zero shares

(Neutral)
(Neutral)
Form Type
3

Rhea-AI Filing Summary

T-Mobile US, Inc. submitted an initial statement of beneficial ownership for Chief Enterprise Officer Christopher Sambar. The statement lists Common Stock with 0.0000 shares beneficially owned directly in his name as of August 1, 2026, and reports no derivative securities positions.

Positive

  • None.

Negative

  • None.
Insider Sambar Christopher
Role Chief Enterprise Officer
Type Security Shares Price Value
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 0 shares (Direct)
Common stock beneficially owned 0.0000 shares Direct holdings reported for Christopher Sambar as of 2026-08-01
Holding entries 1 Number of non-transactional holding rows in the Form 3 report
Buy transactions 0 BuyCount in the transaction summary for this Form 3
beneficial ownership financial
"submitted an initial statement of beneficial ownership for Chief Enterprise Officer"
Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.
Common Stock financial
"The statement lists Common Stock with 0.0000 shares beneficially owned"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.
Form 3 regulatory
"reports 0.0000 common shares owned on Form 3, with no derivative positions"
Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

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

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FAQ

What does the TMUS Form 3 for Christopher Sambar disclose?

It shows that Chief Enterprise Officer Christopher Sambar has 0.0000 shares of common stock beneficially owned directly. The Form 3 is an initial statement of beneficial ownership and also reports no derivative securities positions for him.

How many TMUS common shares does Christopher Sambar report owning?

Christopher Sambar reports owning 0.0000 shares of T-Mobile US common stock directly. This figure comes from his initial beneficial ownership statement and represents the total common stock reported under his name as of August 1, 2026.

Does the TMUS Form 3 show any derivative securities for Christopher Sambar?

No. The Form 3 for Christopher Sambar reports no derivative securities positions. Only a single holding entry is listed, showing zero common shares beneficially owned directly and no options or other derivative instruments reported in this statement.

What is Christopher Sambar’s role at TMUS in this ownership report?

In this ownership report, Christopher Sambar is identified as Chief Enterprise Officer of T-Mobile US, Inc. The Form 3 ties this executive role to his reported beneficial ownership, which currently lists zero common shares and no derivative holdings.

Is the TMUS Form 3 a buy or sell transaction for Christopher Sambar?

It is not a buy or sell transaction. The Form 3 is an initial beneficial ownership report, showing a holding entry with 0.0000 common shares and no reported transactions to acquire or dispose of T-Mobile US securities.
SEC Form 3
FORM 3UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:3235-0104
Estimated average burden
hours per response:0.5
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. Date of Event Requiring Statement (Month/Day/Year)
08/01/2026
3. Issuer Name and Ticker or Trading Symbol
T-Mobile US, Inc. [ TMUS ]
3a. Foreign Trading Symbol
5. If Amendment, Date of Original Filed (Month/Day/Year)
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Enterprise Officer
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock0D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year)3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
Remarks:
/s/ Frederick Williams, Attorney-in-Fact08/04/2026
** Signature of Reporting PersonDate
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 5 (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 3: SEC 1473 (03-26)