T-Mobile US adds Deutsche Telekom CTO to board

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8-K Event Classification

What did T-Mobile US (TMUS) disclose in this 8-K filing?

Who is Abdurazak Mudesir, newly elected to the T-Mobile US (TMUS) board?

When did Abdurazak Mudesir’s appointment to the T-Mobile US (TMUS) board become effective?

Why did Deutsche Telekom designate Abdurazak Mudesir to the T-Mobile US (TMUS) board?

What is the stockholders’ agreement mentioned in the T-Mobile US (TMUS) 8-K?

Does the T-Mobile US (TMUS) 8-K mention any financial terms or transactions?

T-Mobile US, Inc. reported that on September 19, 2025, Abdurazak Mudesir was elected to its Board of Directors, effective immediately.

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T-Mobile US, Inc. reported that on September 19, 2025, Abdurazak Mudesir was elected to its Board of Directors, effective immediately. He was selected as a designee of Deutsche Telekom AG under a Second Amended and Restated Stockholders’ Agreement with Deutsche Telekom and SoftBank Group Corp.

Mr. Mudesir currently serves as the Chief Technology Officer of Deutsche Telekom, adding senior technology and strategic expertise from a major stockholder to T-Mobile’s boardroom.

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

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T-Mobile US disclosed that Abdurazak Mudesir was elected to its Board of Directors on September 19, 2025, effective immediately. He joins as a designee of major shareholder Deutsche Telekom AG under an existing stockholders’ agreement that also includes SoftBank Group Corp.

Abdurazak Mudesir is the Chief Technology Officer of Deutsche Telekom AG and has been elected to the T-Mobile US Board of Directors. His role at Deutsche Telekom suggests deep experience in network and technology strategy, now represented directly at the T-Mobile board level.

His appointment became effective immediately on September 19, 2025, the same date he was elected to the Board of Directors. This timing means he can participate in board deliberations and oversight from that date without any stated transition or delay period.

The filing states that Mudesir was selected as a designee of Deutsche Telekom AG under a Second Amended and Restated Stockholders’ Agreement. That agreement, dated June 22, 2020, is among T-Mobile US, Deutsche Telekom, and SoftBank Group Corp, governing director designation rights.

The agreement is a Second Amended and Restated Stockholders’ Agreement dated June 22, 2020, among T-Mobile US, Deutsche Telekom AG, and SoftBank Group Corp. It gives Deutsche Telekom the right to designate certain board members, under which Abdurazak Mudesir was selected.

T-MOBILE US, INC.

September 24, 2025

/s/ Peter Osvaldik

Peter Osvaldik
Executive Vice President and Chief Financial Officer

The disclosure focuses on corporate governance, specifically the election of Abdurazak Mudesir to the Board of Directors. It does not describe financing, securities offerings, earnings results, or major business transactions, centering instead on board composition and stockholder designation rights.

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Accepted by SEC EDGAR 09/24/2025 - 04:01 PM EDT

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): September 19, 2025

LOGO

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)


Delaware	1-33409	20-0836269
(State or other jurisdiction	(Commission	(I.R.S. Employer
of incorporation)	File Number)	Identification No.)

12920 SE 38th Street

Bellevue, Washington

(Address of principal executive offices)

98006-1350

(Zip Code)

Registrant’s telephone number, including area code: (425) 378-4000

(Former Name or Former Address, if Changed Since Last Report):

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.00001 per share	TMUS	The NASDAQ Stock Market LLC
3.550% Senior Notes due 2029	TMUS29	The NASDAQ Stock Market LLC
3.700% Senior Notes due 2032	TMUS32	The NASDAQ Stock Market LLC
3.150% Senior Notes due 2032	TMUS32A	The NASDAQ Stock Market LLC
3.850% Senior Notes due 2036	TMUS36	The NASDAQ Stock Market LLC
3.500% Senior Notes due 2037	TMUS37	The NASDAQ Stock Market LLC
3.800% Senior Notes due 2045	TMUS45	The NASDAQ Stock Market LLC
6.250% Senior Notes due 2069	TMUSL	The NASDAQ Stock Market LLC
5.500% Senior Notes due March 2070	TMUSZ	The NASDAQ Stock Market LLC
5.500% Senior Notes due June 2070	TMUSI	The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.02

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On September 19, 2025, Abdurazak Mudesir was elected to the Board of Directors (the “Board”) of T-Mobile US, Inc. (the “Company”), effective immediately. Mr. Mudesir was selected as a designee of Deutsche Telekom AG (“Deutsche Telekom”) pursuant to that certain Second Amended and Restated Stockholders’ Agreement, dated June 22, 2020, by and among the Company, Deutsche Telekom and SoftBank Group Corp. Mr. Mudesir currently serves as the Chief Technology Officer of Deutsche Telekom.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Source: View Original Filing on SEC EDGAR