T-Mobile US, Inc. filed a Form 8-K with the SEC on October 28, 2026, furnishing a press release and Investor Factbook announcing the company's financial and operating results for the quarter ended September 30, 2026.

Key Highlights

  • Reporting period: Results cover the quarter ended September 30, 2026.
  • Filing date: The current report was filed on October 28, 2026.
  • Press release title: The accompanying press release is entitled "T-Mobile Delivers Strong Account and ARPA Growth, Translating into Industry-Leading Service Revenue, Profitability and EPS Growth," according to the filing.
  • Exhibits furnished: The filing furnished Exhibit 99.1 (press release) and Exhibit 99.2 (Investor Factbook for Third Quarter 2026 Results).
  • Signed by: The report was signed by Peter Osvaldik, Chief Financial Officer.
  • Furnished, not filed: The filing states the information in Item 2.02 "shall not be deemed 'filed' for purposes of Section 18 of the Securities Exchange Act of 1934."

T-Mobile US Files Q3 2026 Earnings Current Report Under Item 2.02

T-Mobile US, Inc. (NASDAQ:TMUS) submitted this current report under Item 2.02, "Results of Operations and Financial Condition," disclosing that on October 28, 2026, the company issued a press release covering its financial and operating results for the third quarter ended September 30, 2026. The press release and an Investor Factbook were attached as Exhibits 99.1 and 99.2, respectively, and incorporated by reference into the filing.

The press release, according to the filing, carries the title "T-Mobile Delivers Strong Account and ARPA Growth, Translating into Industry-Leading Service Revenue, Profitability and EPS Growth." The filing does not reproduce specific financial figures within the body of the 8-K itself; those details are contained in the furnished exhibits. The company noted that the furnished information is not deemed "filed" under the Securities Exchange Act and is not subject to the liabilities of Section 18 of that act, except as expressly set forth by specific reference in a subsequent filing.

In addition to its common stock (NASDAQ:TMUS), the company has multiple series of senior notes listed on NASDAQ, including instruments due in years ranging from 2029 through 2070, each carrying its own trading symbol. The report was signed by Peter Osvaldik in his capacity as Chief Financial Officer of T-Mobile US, Inc., a Delaware corporation headquartered in Bellevue, Washington.

What Was Disclosed

T-Mobile US filed a current report furnishing its Q3 2026 earnings press release and Investor Factbook as exhibits. The core financial data is contained in those exhibits rather than in the body of the 8-K filing itself.