8-K

T-MOBILE US, INC.

March 31, 2026

/s/ Peter Osvaldik

Name: Peter Osvaldik

Title: Chief Financial Officer

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 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): March 31, 2026

LOGO

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in its Charter)


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


12920 SE 38th Street
Bellevue, Washington		98006-1350
(Address of principal executive offices)		(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	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
3.200% Senior Notes due 2032	TMUS32B	The NASDAQ Stock Market LLC
3.625% Senior Notes due 2035	TMUS35	The NASDAQ Stock Market LLC
3.850% Senior Notes due 2036	TMUS36	The NASDAQ Stock Market LLC
3.900% Senior Notes due 2038	TMUS38	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 8.01.

Other Events.

On March 31, 2026, following the previous repayment of certain legacy indebtedness, T-Mobile USA, Inc. (“TMUSA”), a wholly-owned subsidiary of T-Mobile US, Inc. (“TMUS”), elected to release the guarantees of certain subsidiaries under its $10 billion revolving credit agreement pursuant to the terms thereof, resulting in a corresponding release under the indentures dated April 28, 2013, April 9, 2020 and September 15, 2022, governing its outstanding senior notes. As a result, following the release, the obligors under TMUSA’s revolving credit agreement and outstanding senior notes now consist of TMUSA, as issuer or borrower, and each of TMUS, Sprint LLC, Sprint Capital Corporation and Sprint Communications LLC, as guarantors. Corresponding subsidiary guarantor releases were also effected under other TMUSA debt facilities, including its export credit agency facilities and unsecured short-term commercial paper program.