Official announcements (8-K)

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

In the company's wordsOn October 28, 2026, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter ended September 30, 2026. The text of the press release and accompanying Investor Factbook are furnished as Exhibits 99.1 and 99.2 and incorporated herein by reference. The information in Item 2.02 to this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's wordsOn October 26, 2026, G. Michael Sievert notified the Board of Directors (the “Board”) of T-Mobile US, Inc. (the “Company”) of his decision to resign from the Board and its Transaction Committee, effective November 1, 2026. The effective date of Mr. Sievert’s resignation is concurrent with the expiration of the Amendment, dated September 19, 2025, to the Amended and Restated Employment Agreement, dated March 9, 2023, between the Company and Mr. Sievert. Effective November 1, 2026, Mr. Sievert will also cease to serve as Vice Chair of the Board and the Company. Mr. Sievert’s resignation is not the result of any disagreement with the Company on any matter relating to its …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's wordsOn September 3, 2026, T-Mobile US, Inc. (“T-Mobile” or the “Company”) announced that Peter Osvaldik, Chief Financial Officer of the Company, would retire from his role as Chief Financial Officer in February 2027. Mr. Osvaldik will remain as the Company’s Strategic Advisor through July 1, 2027, which is the end of his previously announced contract extension, to aid in the extended transition of responsibilities. T-Mobile expects that Jessica Uhl, who will commence employment as the Company’s Chief Financial Officer Designate in mid-September 2026, will serve as Chief Financial Officer upon Mr. Osvaldik’s retirement. Ms. Uhl, age 58, served as President of GE Vernova from …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn September 3, 2026, the Company issued a press release announcing [the Chief Financial Officer transition]. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information contained in Item 7.01, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

In the company's wordsOn July 23, 2026, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter ended June 30, 2026. The text of the press release and accompanying Investor Factbook are furnished as Exhibits 99.1 and 99.2 and incorporated herein by reference. The information in Item 2.02 to this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's words(the “Company”) announced that it has appointed Chris Sambar as its Chief Enterprise Officer, effective no later than October 14, 2026. In this role, Mr. Sambar will oversee the Company’s enterprise and government businesses and will report directly to Srinivasan Gopalan, the Company’s President and Chief Executive Officer. In connection with Mr. Sambar’s hiring, André Almeida, currently the Company’s Chief Broadband, Enterprise and Emerging Business Officer, will transition to the role of Chief Marketing, Brand, and Broadband Officer. In this capacity, Mr. Almeida will lead the Company’s marketing, communications, and broadband operations, while also continuing to …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn July 7, 2026, T-Mobile issued a press release announcing the appointment of Chris Sambar as the Company’s Chief Enterprise Officer and other changes to the Company’s leadership team. A copy of the press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference. The information contained in Item 7.01, including Exhibit 99.1, shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as …

Shared shareholder vote results (Item 5.07)

How shareholders voted on board members and proposals.

In the company's wordsOn June 16, 2026, T-Mobile US, Inc. (the “Company”) held its Annual Meeting of Stockholders (the “Annual Meeting”). At the Annual Meeting, the following three proposals were presented, as described in the Company’s definitive proxy statement on Schedule 14A filed with the Securities and Exchange Commission on April 27, 2026 (the “Proxy Statement”): (1) Elect 13 director nominees named in the Proxy Statement to the Company’s Board of Directors; (2) Ratify the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026; and (3) Conduct an advisory vote to approve the compensation provided …

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

In the company's wordsOn April 28, 2026, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter ended March 31, 2026. The text of the press release and accompanying Investor Factbook are furnished as Exhibits 99.1 and 99.2 and incorporated herein by reference. The information in Item 2.02 to this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the …

Announced another event (Item 8.01)

Another event the company chose to report publicly.

In the company's wordsOn April 23, 2026, T-Mobile US, Inc., a Delaware corporation (the “Company”), announced that its Board of Directors (the “Board”) has authorized an increase to the Company’s shareholder return program (the “2026 Shareholder Return Program”) of up to $3.6 billion, reflecting an increase from up to $14.6 billion of shareholder returns to up to $18.2 billion. As previously announced, the 2026 Shareholder Return Program will run through December 31, 2026. Utilization of the authorized amounts under the Shareholder Return Program continue to be subject to market conditions and other factors and the authorized increase of up to $3.6 billion will be subject to additional …

Announced another event (Item 8.01)

Another event the company chose to report publicly.

In the company's wordsOn 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 …

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

In the company's wordsOn March 26, 2026, Abdurazak Mudesir notified the Board of Directors (the “Board”) of T-Mobile US, Inc. (the “Company”) of his decision to resign from the Board and from the Nominating, Corporate Governance and Compliance Committee of the Board, effective March 31, 2026. Mr. Mudesir’s resignation is not the result of any disagreement between the Company and him on any matter relating to the Company’s operations, policies or practices.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

In the company's wordsOn February 19, 2026, T-Mobile USA, Inc. (“T-Mobile USA”), a direct, wholly-owned subsidiary of T-Mobile US, Inc. (the “Company”), closed an underwritten public offering of €750 million in aggregate principal amount of its 3.200% Senior Notes due 2032 (the “2032 Notes”), €750 million in aggregate principal amount of its 3.625% Senior Notes due 2035 (the “2035 Notes”) and €1.0 billion in aggregate principal amount of its 3.900% Senior Notes due 2038 (the “2038 Notes” and, together with the 2032 Notes and the 2035 Notes, the “Notes”) pursuant to an underwriting agreement, dated February 12, 2026 (the “Underwriting Agreement”), with the several underwriters named in Schedule …

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

In the company's wordsOn February 11, 2026, T-Mobile US, Inc. (the “Company”) hosted a fourth quarter earnings call and Capital Markets Day Update event. Members of the Company’s leadership team provided an update to the Company’s multi-year plan originally shared at its September 2024 Capital Markets Day. The event is accessible via webcast on the Company’s Investor Relations website at https://investor.t-mobile.com. A replay of the webcast along with presentation materials will be available on the Investor Relations website at the conclusion of the event. A copy of the press release relating to the Capital Markets Day Update is attached hereto as Exhibit 99.1. The information contained in …

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Signed a major agreement (Item 1.01)

A major new contract can change what the company sells, spends or owes.

Took on a major new debt or obligation (Item 2.03)

New borrowing adds to what the company owes and the interest it pays.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Shared shareholder vote results (Item 5.07)

How shareholders voted on board members and proposals.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Shared financial results (Item 2.02)

New results: figures on this page will update when the full quarterly or annual report is filed.

Change in its leaders or board (Item 5.02)

New leaders or board members can bring a change in strategy.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.

Announced another event (Item 8.01)

Another event the company chose to report publicly.

Shared information with investors (Item 7.01)

Information shared with investors, often a presentation or press release.