What changed in this filing

/stocks — the workspaceLOADING

Item 5. Other Information

2025-04-24 compared with 2024-10-23 · 30 added, 4 removed, 22 unchanged (61% of the section changed)

Other Information

During the three months ended September 30, 2024 , none of the Company’s directors or officers adopted, modified, or terminated any “ Rule 10b5-1 trading arrangement ” or “ non-Rule 10b5-1 trading arrangement ,” as each term is defined in Item 408 of Regulation S-K.

On February 20, 2025 , Mark W.

Nelson , the Company’s Executive Vice President and General Counsel , adopted a trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) to sell all of the shares of the Company’s common stock he will acquire on February 17, 2026, upon the vesting of certain time-based restricted stock unit awards and performance-based restricted stock unit awards (“PRSUs”), up to a total of 42,525 shares assuming PRSUs will vest at maximum value, subject to certain conditions.

The duration of this trading plan is 372 days.

On March 4, 2025 , Peter Osvaldik , the Company’s Chief Financial Officer , adopted a trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) to sell up to 10,000 shares of the Company’s common stock, subject to certain conditions.

The duration of this trading plan is 336 days.

On March 6, 2025 , Deeanne King , the Company’s Executive Vice President and Chief People Officer , adopted a trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) to sell up to 18,628 shares of the Company’s common stock, subject to certain conditions.

The duration of this trading plan is 366 days.

On March 10, 2025 , Jonathan Freier , the Company’s President , Consumer Group, adopted a trading plan intended to satisfy the affirmative defense of Rule 10b5-1(c) to sell up to 21,155 shares of the Company’s common stock, subject to certain conditions.

The duration of this trading plan is 296 days.

Incorporated by Reference

Exhibit Description Form Date of First Filing Exhibit Number Filed Herein

10.1* Compensation Term Sheet, dated as of September 12, 2024, by and between T-Mobile US, Inc.

and Peter Osvaldik.

4.1 Twenty-Second Supplemental Indenture, dated as of February 11, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 3.150% Senior Note due 2032.

8-K 2/11/2025 4.2

4.2 Twenty-Third Supplemental Indenture, dated as of February 11, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 3.500% Senior Note due 2037.

8-K 2/11/2025 4.3

4.3 Twenty-Fourth Supplemental Indenture, dated as of February 11, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 3.800% Senior Note due 2045.

8-K 2/11/2025 4.4

4.4 Twenty-Fifth Supplemental Indenture, dated as of March 10, 2025, by and among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee.

POSASR 3/24/2025 4.8

4.5 Twenty-Sixth Supplemental Indenture, dated as of March 27, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 5.125% Senior Note due 2032.

8-K 3/27/2025 4.2

4.6 Twenty-Seventh Supplemental Indenture, dated as of March 27, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 5.300% Senior Note due 2035.

8-K 3/27/2025 4.3

4.7 Twenty-Eighth Supplemental Indenture, dated as of March 27, 2025, by and among T-Mobile USA, Inc., the Guarantors (as defined therein) and Deutsche Bank Trust Company Americas, as trustee, including the Form of 5.875% Senior Note due 2055.

8-K 3/27/2025 4.4

4.8 Twenty-Fifth Supplemental Indenture, dated as of March 10, 2025, by and among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee.

4.9 Fifty-First Supplemental Indenture, dated as of March 10, 2025, by and among T-Mobile USA, Inc., the guarantors party thereto and Deutsche Bank Trust Company Americas, as trustee.

10.1* Form of LTI Award Letter Amendment

10.2* Compensation Term Sheet, dated as of March 18, 2025, by and between T-Mobile US, Inc.

and Michael J.

10.3 Guarantee Assumption Agreement, dated as of March 10, 2025, by and among Sprint Spectrum License Holder LLC, Sprint Spectrum License Holder II LLC, Sprint Spectrum License Holder III LLC and certain subsidiary guarantors.

22.1 Subsidiary Guarantors and Issuers of Guaranteed Securities.

14 unchanged sentences

T-MOBILE US, INC.

October 23, 2024 /s/ Peter Osvaldik

April 24, 2025 /s/ Peter Osvaldik

Peter Osvaldik

2 unchanged sentences

Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.

What changed 10-Q

Item 5. Other Information