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AI Earnings Predictions for T-Mobile US Inc. (TMUS)

Machine learning predictions based on historical earnings data and price patterns

Latest Prediction

BUY

1-Day Prediction

+1.85%

$173.25

66% positive prob.

5-Day Prediction

+1.71%

$173.03

66% positive prob.

20-Day Prediction

+3.66%

$176.34

63% positive prob.

Price at prediction: $170.11 Confidence: 32.6% Model AUC: 1.0000 Quarter: Q2 2026

Historical Earnings Predictions

Quarter Signal 1D Return 5D Return 20D Return Confidence Actual 5D
Q2 2026 BUY +1.85% +1.71% +3.66% 32.6% Pending
Q1 2026 BUY +2.46% +2.44% +5.86% 100.0% +4.04%
Q4 2025 BUY +2.46% +2.40% +6.35% 100.0% +2.75%

Earnings Transcripts

SEC 8-K filings with transcript text

View All
2026
Q2

Q2 2026 Earnings

8-K BUY

Jul 23, 2026 · 33% conf.

AI Prediction BUY

1D

+1.85%

$173.25

Act: +5.87%

5D

+1.71%

$173.03

20D

+3.66%

$176.34

Price: $170.11 Prob +5D: 66% AUC: 1.000
0001283699-26-000100

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2026
Q1

Q1 2026 Earnings

8-K BUY

Apr 28, 2026 · 100% conf.

AI Prediction BUY

1D

+2.46%

$191.36

Act: +6.04%

5D

+2.44%

$191.32

Act: +4.04%

20D

+5.86%

$197.71

Act: +2.17%

Price: $186.76 Prob +5D: 100% AUC: 1.000
0001283699-26-000062

EX-99.1

2 tmus03312026ex991.htm

TMUS EXHIBIT 99.1

Document

EXHIBIT 99.1

T-Mobile Delivers Continued Durable Postpaid Account and ARPA Growth, Translating to Best-in-Class Financial Growth, Raises Guidance

Q1 Is Yet Another Proof Point That the Un-carrier’s Winning Formula of Best Network, Best Value and Best Experiences Drives New and Deepening Customer Relationships, Translating to Outsized Financial Results

Accelerating Account Growth and Deepening Customer Relationships Fueled by Widening Differentiation

•Postpaid net account additions of 217 thousand, grew 6% year-over-year

•Postpaid Average Revenue Per Account (“ARPA”) of $151.93 grew 3.9% year-over-year

Translating Strong Account Growth into Durable and Profitable Financial Growth(1)

•Service revenues of $18.8 billion grew 11% year-over-year, industry-leading growth

•Postpaid service revenues of $15.6 billion grew 15% year-over-year, industry-leading growth

•Net income of $2.5 billion decreased 15% year-over-year and included the impact of UScellular merger-related costs, including accelerated depreciation, net of tax, of $476 million

•Diluted earnings per share (“EPS”) of $2.27 decreased 12% year-over-year and included the impact of UScellular merger-related costs, including accelerated depreciation, net of tax, of $0.43

•Core Adjusted EBITDA(2) of $9.2 billion grew 12% year-over-year, industry-leading growth

•Net cash provided by operating activities of $7.2 billion grew 5% year-over-year, industry-leading growth

•Adjusted Free Cash Flow(2) of $4.6 billion grew 5% year-over-year, industry-leading growth

Extending Overall Network Lead with Best Assets, Customer Centricity and Technology Leadership

•A record share of recent switchers to T-Mobile say they made their choice primarily due to network quality, proof that improving network perception is driving network seekers to the Un-carrier(3)

•Fastest provider in Fixed Wireless Home Internet with median download speeds over 50% faster than next closest peer, based on T-Mobile’s analysis of Ookla data(4)

•As an initial step for T-Mobile to support the broader evolution of physical AI, Figure AI’s F03 humanoid robots in production are designed to connect to T-Mobile’s 5G Advanced network

Bellevue, WA — April 28, 2026 — T-Mobile US, Inc. (NASDAQ: TMUS) reported first quarter 2026 results today, delivering accelerating postpaid net account growth and strong postpaid ARPA growth. The company’s strong customer relationship results contributed to industry-best service revenue growth, including postpaid service revenue growth, strong net income, industry-leading Core Adjusted EBITDA growth, and industry-leading cash flow growth, while fueling stockholder returns of $6.0 billion.

“Q1 marked a strong start to the year as we continue to execute against our ambitious 2026 and 2027 targets, representing yet another proof point of our winning formula and unique differentiation,” said Srini Gopalan, CEO of T-Mobile. “We reported accelerating postpaid net account growth and strong postpaid ARPA growth, reflecting this team’s differentiated ability to not only attract new customer relationships but also deepen the engagement with our existing base. This drove the outsized results you see, including industry-leading financial growth. We’re more confident than ever in our strategy and the opportunities ahead of us, supported by the industry’s best growth portfolio in core wireless, broadband, and smart adjacencies. The best truly lies ahead of us.”


(1)Industry-leading claims are based on consensus expectations if results are not yet reported.

(2)Core Adjusted EBITDA and Adjusted Free Cash Flow are non-GAAP financial measures. These non-GAAP financial measures should be considered in addition to, but not as a substitute for, the information provided in accordance with GAAP. Reconciliations for these non-GAAP financial measures to the most directly comparable GAAP financial measures are provided in the Reconciliation of Non-GAAP Financial Measures to GAAP Financial Measures tables. We are not able to forecast Net income on a forward-looking basis without unreasonable efforts due to the high variability and difficulty in predicting certain items that affect Net income, including, but not limited to, Special Items, Income tax expense and Interest expense. Core Adjusted EBITDA should not be used to predict Net income as the difference between this measure and Net income is variable.

(3)HarrisX Mobile Insights, Q1 2026.

(4)Based on T-Mobile's analysis of Ookla® Speedtest Intelligence® data of fixed wireless access providers median download speeds, United States, Q1 2026.

1

Accelerating Account Growth and Deepening Customer Relationships Fueled by Widening Differentiation

•Postpaid net account additions of 217 thousand increased 12 thousand, or 6%, year-over-year. Postpaid account churn of 1.04%.

•Postpaid ARPA of $151.93 grew 3.9% year-ov

2025
Q4

Q4 2025 Earnings

8-K BUY

Feb 11, 2026 · 100% conf.

AI Prediction BUY

1D

+2.46%

$214.70

Act: +2.45%

5D

+2.40%

$214.58

Act: +2.75%

20D

+6.35%

$222.86

Price: $209.54 Prob +5D: 100% AUC: 1.000
0001283699-26-000007

tmus-202602110001283699false00012836992026-02-112026-02-110001283699tmus:CommonStockParValue0.00001PerShareMember2026-02-112026-02-110001283699tmus:A3.550SeniorNotesDue2029Member2026-02-112026-02-110001283699tmus:A3.700SeniorNotesDue2032Member2026-02-112026-02-110001283699tmus:A3.150SeniorNotesDue2032Member2026-02-112026-02-110001283699tmus:A3.850SeniorNotesDue2036Member2026-02-112026-02-110001283699tmus:A3.500SeniorNotesDue2037Member2026-02-112026-02-110001283699tmus:A3.800SeniorNotesDue2045Member2026-02-112026-02-110001283699tmus:A6.250SeniorNotesDue2069Member2026-02-112026-02-110001283699tmus:A5.500SeniorNotesDueMarch2070Member2026-02-112026-02-110001283699tmus:A5.500SeniorNotesDueJune2070Member2026-02-112026-02-11

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): February 11, 2026

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.150% Senior Notes due 2032TMUS32AThe NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The NASDAQ Stock Market LLC 3.500% Senior Notes due 2037TMUS37The NASDAQ Stock Market LLC 3.800% Senior Notes due 2045TMUS45The NASDAQ Stock Market LLC 6.250% Senior Notes due 2069TMUSLThe NASDAQ Stock Market LLC 5.500% Senior Notes due March 2070TMUSZThe NASDAQ Stock Market LLC 5.500% Senior Notes due June 2070TMUSIThe 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 2.02 — Results of Operations and Financial Condition On February 11, 2026, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter and year ended December 31, 2025. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated February 11, 2026, entitled "T-Mobile Delivers Best-in-Class Customer Results in Q4, Translating into Durable and Profitable Financial Growth Driven By Widening Differentiation"

99.2 Investor Factbook of T-Mobile US, Inc. Fourth Quarter and Full Year 2025 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

February 11, 2026/s/ Peter Osvaldik Peter Osvaldik Chief Financial Officer

2025
Q3

Q3 2025 Earnings

8-K

Oct 23, 2025

0001283699-25-000153

tmus-202510230001283699false00012836992025-10-232025-10-230001283699tmus:CommonStockParValue0.00001PerShareMember2025-10-232025-10-230001283699tmus:A3.550SeniorNotesDue2029Member2025-10-232025-10-230001283699tmus:A3.700SeniorNotesDue2032Member2025-10-232025-10-230001283699tmus:A3.150SeniorNotesDue2032Member2025-10-232025-10-230001283699tmus:A3.850SeniorNotesDue2036Member2025-10-232025-10-230001283699tmus:A3.500SeniorNotesDue2037Member2025-10-232025-10-230001283699tmus:A3.800SeniorNotesDue2045Member2025-10-232025-10-230001283699tmus:A6.250SeniorNotesDue2069Member2025-10-232025-10-230001283699tmus:A5.500SeniorNotesDueMarch2070Member2025-10-232025-10-230001283699tmus:A5.500SeniorNotesDueJune2070Member2025-10-232025-10-23

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): October 23, 2025

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.150% Senior Notes due 2032TMUS32AThe NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The NASDAQ Stock Market LLC 3.500% Senior Notes due 2037TMUS37The NASDAQ Stock Market LLC 3.800% Senior Notes due 2045TMUS45The NASDAQ Stock Market LLC 6.250% Senior Notes due 2069TMUSLThe NASDAQ Stock Market LLC 5.500% Senior Notes due March 2070TMUSZThe NASDAQ Stock Market LLC 5.500% Senior Notes due June 2070TMUSIThe 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 2.02 — Results of Operations and Financial Condition On October 23, 2025, 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, 2025. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated October 23, 2025, entitled "T-Mobile Delivers Record Customer Growth, Fueled By Widening Differentiation and Focus on Durable and Profitable Financial Growth, Raises Guidance Across the Board"

99.2 Investor Factbook of T-Mobile US, Inc. Third Quarter 2025 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

October 23, 2025/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2025
Q2

Q2 2025 Earnings

8-K

Jul 23, 2025

0001283699-25-000116

tmus-202507230001283699false00012836992025-07-232025-07-230001283699tmus:CommonStockParValue0.00001PerShareMember2025-07-232025-07-230001283699tmus:A3.550SeniorNotesDue2029Member2025-07-232025-07-230001283699tmus:A3.700SeniorNotesDue2032Member2025-07-232025-07-230001283699tmus:A3.150SeniorNotesDue2032Member2025-07-232025-07-230001283699tmus:A3.850SeniorNotesDue2036Member2025-07-232025-07-230001283699tmus:A3.500SeniorNotesDue2037Member2025-07-232025-07-230001283699tmus:A3.800SeniorNotesDue2045Member2025-07-232025-07-23

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): July 23, 2025

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.150% Senior Notes due 2032TMUS32AThe NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The NASDAQ Stock Market LLC 3.500% Senior Notes due 2037TMUS37The NASDAQ Stock Market LLC 3.800% Senior Notes due 2045TMUS45The 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 2.02 — Results of Operations and Financial Condition On July 23, 2025, 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, 2025. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated July 23, 2025, entitled "T-Mobile Delivers Record Quarter with Outsized Customer and Financial Growth, and Raises Full Year 2025 Guidance"

99.2 Investor Factbook of T-Mobile US, Inc. Second Quarter 2025 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

July 23, 2025/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2025
Q1

Q1 2025 Earnings

8-K

Apr 24, 2025

0001283699-25-000078

tmus-202504240001283699false00012836992025-04-242025-04-240001283699tmus:CommonStockParValue0.00001PerShareMember2025-04-242025-04-240001283699tmus:A3.550SeniorNotesDue2029Member2025-04-242025-04-240001283699tmus:A3.700SeniorNotesDue2032Member2025-04-242025-04-240001283699tmus:A3.150SeniorNotesDue2032Member2025-04-242025-04-240001283699tmus:A3.850SeniorNotesDue2036Member2025-04-242025-04-240001283699tmus:A3.500SeniorNotesDue2037Member2025-04-242025-04-240001283699tmus:A3.800SeniorNotesDue2045Member2025-04-242025-04-24

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): April 24, 2025

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.150% Senior Notes due 2032TMUS32AThe NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The NASDAQ Stock Market LLC 3.500% Senior Notes due 2037TMUS37The NASDAQ Stock Market LLC 3.800% Senior Notes due 2045TMUS45The 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 2.02 — Results of Operations and Financial Condition On April 24, 2025, 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, 2025. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated April 24, 2025, entitled "T-Mobile Leads the Industry Once Again With Continued Durable Customer Growth, Including Best Ever Q1 Postpaid Gross and Net Additions, Translating to Outstanding Financial Growth"

99.2 Investor Factbook of T-Mobile US, Inc. First Quarter 2025 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

April 24, 2025/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2024
Q4

Q4 2024 Earnings

8-K

Jan 29, 2025

0001283699-25-000008

tmus-202501290001283699false00012836992025-01-292025-01-290001283699tmus:CommonStockParValue0.00001PerShareMember2025-01-292025-01-290001283699tmus:A3.550SeniorNotesDue2029Member2025-01-292025-01-290001283699tmus:A3.700SeniorNotesDue2032Member2025-01-292025-01-290001283699tmus:A3.850SeniorNotesDue2036Member2025-01-292025-01-29

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): January 29, 2025

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The 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 2.02 — Results of Operations and Financial Condition On January 29, 2025, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter and year ended December 31, 2024. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated January 29, 2025, entitled "T-Mobile Delivers Best-in-Class Customer Results in 2024 as More People Joined the Un-carrier Than Ever Before, and Is Poised for Another Exciting Year of Growth in 2025"

99.2 Investor Factbook of T-Mobile US, Inc. Fourth Quarter and Full Year 2024 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

January 29, 2025/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2024
Q3

Q3 2024 Earnings

8-K

Oct 23, 2024

0001283699-24-000141

tmus-202410230001283699false00012836992024-10-232024-10-230001283699tmus:CommonStockParValue0.00001PerShareMember2024-10-232024-10-230001283699tmus:A3.550SeniorNotesDue2029Member2024-10-232024-10-230001283699tmus:A3.700SeniorNotesDue2032Member2024-10-232024-10-230001283699tmus:A3.850SeniorNotesDue2036Member2024-10-232024-10-23

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): October 23, 2024

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The 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 2.02 — Results of Operations and Financial Condition On October 23, 2024, 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, 2024. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated October 23, 2024, entitled "T-Mobile Delivers Industry-Leading Growth in Customers, Service Revenues, Profitability and Cash Flows in Q3, Raises 2024 Guidance Across the Board"

99.2 Investor Factbook of T-Mobile US, Inc. Third Quarter 2024 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

October 23, 2024/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2024
Q2

Q2 2024 Earnings

8-K

Jul 31, 2024

0001283699-24-000109

tmus-202407310001283699false00012836992024-07-312024-07-310001283699tmus:CommonStockParValue0.00001PerShareMember2024-07-312024-07-310001283699tmus:A3.550SeniorNotesDue2029Member2024-07-312024-07-310001283699tmus:A3.700SeniorNotesDue2032Member2024-07-312024-07-310001283699tmus:A3.850SeniorNotesDue2036Member2024-07-312024-07-31

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): July 31, 2024

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe NASDAQ Stock Market LLC 3.550% Senior Notes due 2029TMUS29The NASDAQ Stock Market LLC 3.700% Senior Notes due 2032TMUS32The NASDAQ Stock Market LLC 3.850% Senior Notes due 2036TMUS36The 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 2.02 — Results of Operations and Financial Condition On July 31, 2024, 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, 2024. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated July 31, 2024, entitled "T-Mobile Delivers Industry-Leading Growth in Customers, Service Revenues and Profitability in Q2, Raises 2024 Customer and Cash Flow Guidance"

99.2 Investor Factbook of T-Mobile US, Inc. Second Quarter 2024 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

July 31, 2024/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2024
Q1

Q1 2024 Earnings

8-K

Apr 25, 2024

0001283699-24-000062

tmus-202404250001283699false00012836992024-04-252024-04-25

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): April 25, 2024

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On April 25, 2024, 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, 2024. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated April 25, 2024, entitled "T-Mobile Delivers Industry-Leading Customer, Service Revenue and Profitability Growth in Q1 2024, and Raises 2024 Guidance"

99.2 Investor Factbook of T-Mobile US, Inc. First Quarter 2024 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

April 25, 2024/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2023
Q4

Q4 2023 Earnings

8-K

Jan 25, 2024

0001283699-24-000004

tmus-202401250001283699false00012836992024-01-252024-01-25

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): January 25, 2024

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On January 25, 2024, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter and year ended December 31, 2023. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated January 25, 2024, entitled "T-Mobile Delivers Industry-Leading Growth in Customers, Service Revenues, Profitability and Cash Flow in 2023, Setting Up Strong 2024 Outlook"

99.2 Investor Factbook of T-Mobile US, Inc. Fourth Quarter and Full Year 2023 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

January 25, 2024/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2023
Q3

Q3 2023 Earnings

8-K

Oct 25, 2023

0001283699-23-000149

tmus-202310250001283699false00012836992023-10-252023-10-25

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): October 25, 2023

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On October 25, 2023, 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, 2023. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated October 25, 2023, entitled "T-Mobile Outpaces the Industry on Customer and Service Revenue Growth, Delivers Highest Cash Flow in Company History in Q3 2023 and Raises Guidance Again"

99.2 Investor Factbook of T-Mobile US, Inc. Third Quarter 2023 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

October 25, 2023/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2023
Q2

Q2 2023 Earnings

8-K

Jul 27, 2023

0001283699-23-000133

tmus-202307270001283699false00012836992023-07-272023-07-27

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): July 27, 2023

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On July 27, 2023, 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, 2023. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated July 27, 2023, entitled "T-Mobile Delivers Industry-Leading Growth in Customers and Profitability in Q2 2023, Raises 2023 Guidance Again"

99.2 Investor Factbook of T-Mobile US, Inc. Second Quarter 2023 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

July 27, 2023/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2023
Q1

Q1 2023 Earnings

8-K

Apr 27, 2023

0001283699-23-000086

tmus-202304270001283699false00012836992023-04-272023-04-27

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): April 27, 2023

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On April 27, 2023, 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, 2023. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated April 27, 2023, entitled "T-Mobile Delivers Industry-Leading Growth in Customers and Profitability in Q1 2023 and Raises 2023 Guidance"

99.2 Investor Factbook of T-Mobile US, Inc. First Quarter 2023 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

April 27, 2023/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2022
Q4

Q4 2022 Earnings

8-K

Feb 1, 2023

0001283699-23-000007

tmus-202302010001283699false00012836992023-02-012023-02-01

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): February 1, 2023

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On February 1, 2023, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter and year ended December 31, 2022. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated February 1, 2023, entitled "T-Mobile Delivers Industry-Leading Customer, Postpaid Service Revenue and Cash Flow Growth in 2022, Setting Up Strong 2023 Outlook"

99.2 Investor Factbook of T-Mobile US, Inc. Fourth Quarter and Full Year 2022 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

February 1, 2023/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2022
Q3

Q3 2022 Earnings

8-K

Oct 27, 2022

0001283699-22-000140

tmus-202210270001283699false00012836992022-10-272022-10-27

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): October 27, 2022

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On October 27, 2022, 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, 2022. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated October 27, 2022, entitled "T-Mobile Delivers Industry-Leading Customer and Cash Flow Growth in Q3 2022 and Raises 2022 Guidance for the Third Consecutive Quarter"

99.2 Investor Factbook of T-Mobile US, Inc. Third Quarter 2022 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

October 27, 2022/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2022
Q2

Q2 2022 Earnings

8-K

Jul 27, 2022

0001283699-22-000111

tmus-202207270001283699false00012836992022-07-272022-07-27

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): July 27, 2022

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On July 27, 2022, 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, 2022. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated July 27, 2022, entitled "T-Mobile Delivers Industry-Leading Postpaid Service Revenue and Cash Flow Growth in Q2 2022 and Raises Guidance Across the Board"

99.2 Investor Factbook of T-Mobile US, Inc. Second Quarter 2022 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

July 27, 2022/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2022
Q1

Q1 2022 Earnings

8-K

Apr 27, 2022

0001283699-22-000077

tmus-202204270001283699false00012836992022-04-272022-04-27

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): April 27, 2022

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On April 27, 2022, 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, 2022. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated April 27, 2022, entitled "T-Mobile Delivers Industry-Leading Growth in Postpaid Accounts and Customers in Q1 2022 Fueled by 5G Network Leadership"

99.2 Investor Factbook of T-Mobile US, Inc. First Quarter 2022 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

April 27, 2022/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2021
Q4

Q4 2021 Earnings

8-K

Feb 2, 2022

0001283699-22-000009

tmus-202202020001283699false00012836992022-02-022022-02-02

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): February 2, 2022

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation or organization) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On February 2, 2022, T-Mobile US, Inc. (the “Company”) issued a press release announcing the financial and operating results of the Company for the quarter and year ended December 31, 2021. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated February 2, 2022, entitled "T-Mobile’s Unique Formula Delivers Industry-Leading Service Revenue and Cash Flow Growth and Exceeds 2021 Guidance"

99.2 Investor Factbook of T-Mobile US, Inc. Fourth Quarter and Full Year 2021 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

February 2, 2022/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

2021
Q3

Q3 2021 Earnings

8-K

Nov 2, 2021

0001283699-21-000168

tmus-202111020001283699false00012836992021-11-022021-11-02

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): November 2, 2021

T-MOBILE US, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware1-3340920-0836269 (State or other jurisdiction(Commission File Number)(I.R.S. Employer of incorporation or organization) 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 classTrading SymbolName of each exchange on which registered Common Stock, par value $0.00001 per shareTMUSThe 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 2.02 — Results of Operations and Financial Condition On November 2, 2021, 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, 2021. 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 Securities Act of 1933, as amended, except as expressly set forth by specific reference in such filing.

Item 9.01 — Financial Statements and Exhibits (d) Exhibits:

ExhibitDescription 99.1 Press release, dated November 2, 2021, entitled "T-Mobile Delivers Industry-Leading Growth in Postpaid Service Revenues, Postpaid Customers and Cash Flow in Q3"

99.2 Investor Factbook of T-Mobile US, Inc. Third Quarter 2021 Results

104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)

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.

T-MOBILE US, INC.

November 2, 2021/s/ Peter Osvaldik Peter Osvaldik Executive Vice President and Chief Financial Officer

About T-Mobile US Inc. (TMUS) Earnings

This page provides T-Mobile US Inc. (TMUS) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.

Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on TMUS's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.

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