DT executes TMUS disposals under 10b5-1 plan; prices $232–$240

Rhea-AI Filing Summary

Deutsche Telekom AG and several wholly-owned subsidiaries reported a series of open-market sales of T-Mobile US, Inc. (TMUS) common stock on 09/30/2025 and 10/01/2025 under a 10b5-1 trading plan adopted on June 12, 2025. The filings record multiple small dispositions at weighted-average prices ranging approximately from $231.58 to $240.44 per share across several transactions noted in the Form 4 footnotes.

Following the reported transactions, the aggregate beneficial ownership reported on the form is 634,048,214 shares. The reporting persons are identified as DT (Deutsche Telekom AG) and related entities, each checked as a director and a 10% owner, and disclaim beneficial ownership except to the extent of any pecuniary interest. The Form discloses that the sales were effected pursuant to the 10b5-1 plan and provides price ranges for the multiple transactions; no derivative securities were reported.

Positive

• Transactions executed under a 10b5-1 plan adopted on June 12, 2025, which provides documented pre-authorization for trades
• Full disclosure of weighted-average price ranges for the multiple sales with an undertaking to provide detail on request

Negative

• Multiple disposals of TMUS common stock on 09/30/2025 and 10/01/2025, indicating insider selling activity
• Post-transaction beneficial ownership remains at 634,048,214 shares, but the filings show sizable reductions from prior reported levels (disposals recorded across many line items)

Insights

Corporate Governance Analyst

Insider sales executed under a pre-established plan, with large reported hold level.

The Form 4 shows multiple dispositions by Deutsche Telekom AG and related entities on 09/30/2025 and 10/01/2025 under a 10b5-1 plan adopted June 12, 2025, which documents trading pre-authorization and can limit insider timing concerns.

The filing reports a post-transaction beneficial ownership of 634,048,214 shares, and the report includes weighted-average sale price ranges from about $231.58 to $240.44 per share. The disclosure and 10b5-1 citation clarify these were planned sales rather than ad hoc dispositions.

Equity Markets Specialist

Multiple small block sales across two days at prices near $232–$240 per share.

The transactions are recorded as numerous small disposals (see individual line items) with weighted-average prices disclosed in footnotes; ranges include $237.96–$238.95, $238.95–$239.95, and others down to $231.58.

The Form identifies only non-derivative common stock sales and lists no purchases or option exercises; the detailed weighted-price ranges enable verification of execution prices upon request.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

DEUTSCHE TELEKOM AG

(Last) (First) (Middle)

FRIEDRICH-EBERT-ALLEE 140

(Street)

BONN 2M 53113

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
T-Mobile US, Inc. [ TMUS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/30/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

	Form filed by One Reporting Person
X	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/30/2025		S(1)		3,565	D	$238.4581(2)	634,173,501	D
Common Stock	09/30/2025		S(1)		48,897	D	$239.4758(3)	634,124,604	D
Common Stock	09/30/2025		S(1)		11,964	D	$240.1225(4)	634,112,640	D
Common Stock	10/01/2025		S(1)		3,598	D	$232.1142(5)	634,109,042	D
Common Stock	10/01/2025		S(1)		33,860	D	$233.2639(6)	634,075,182	D
Common Stock	10/01/2025		S(1)		11,197	D	$233.7704(7)	634,063,985	D
Common Stock	10/01/2025		S(1)		752	D	$234.8915(8)	634,063,233	D
Common Stock	10/01/2025		S(1)		2,724	D	$235.9662(9)	634,060,509	D
Common Stock	10/01/2025		S(1)		4,534	D	$237.3072(10)	634,055,975	D
Common Stock	10/01/2025		S(1)		2,080	D	$238.2986(11)	634,053,895	D
Common Stock	10/01/2025		S(1)		4,380	D	$239.3006(12)	634,049,515	D
Common Stock	10/01/2025		S(1)		1,301	D	$240.3573(13)	634,048,214	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person^*

DEUTSCHE TELEKOM AG

(Last) (First) (Middle)

FRIEDRICH-EBERT-ALLEE 140

(Street)

BONN 2M 53113

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

T-Mobile Global Holding GmbH

(Last) (First) (Middle)

LANDGRABENWEG 151

(Street)

BONN 2M 53227

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

T-Mobile Global Zwischenholding GmbH

(Last) (First) (Middle)

FRIEDRICH-EBERT-ALLEE 140

(Street)

BONN 2M 53113

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Deutsche Telekom Holding B.V.

(Last) (First) (Middle)

STATIONSPLEIN 8K

(Street)

MAASTRICHT P7 6221 BT

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

X	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. The transactions reported on this Form 4 were effected pursuant to a 10b5-1 trading plan adopted on June 12, 2025.

2. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $237.9579 to $238.9496 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

3. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $238.9502 to $239.9489 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

4. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $239.95 to $240.44 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

5. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $231.575 to $232.47 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

6. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $232.565 to $233.56 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

7. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $233.565 to $234.16 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

8. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $234.58 to $235.305 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

9. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $235.645 to $236.30 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

10. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $236.83 to $237.815 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

11. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $237.855 to $238.81 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

12. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $238.97 to $239.965 per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

13. The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $240.03 to $240. per share. The holder undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

Remarks:

Solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder ("Section 16"), each Reporting Person may be deemed to be a director-by-deputization by virtue of the fact that each of Timotheus Hoettges, Chief Executive Officer of DT, Dr. Christian P. Illek, Board Member for Finance of DT, Raphael Kubler, Senior Vice President of the Corporate Operating Office of DT and Managing Director of Deutsche Telekom Holding B.V., Thorsten Langheim, Board Member for USA and Group Development of DT, and Dominique Leroy, Board Member for Europe of DT, serve on the board of directors of the Issuer. In addition, Each of T-Mobile Global Zwischenholding GmbH, T-Mobile Global Holding GmbH and Deutsche Telekom Holding B.V. are wholly-owned subsidiaries of DT. Each Reporting Person disclaims beneficial ownership in the securities reported on this Form 4 except to the extent of its pecuniary interest, if any, therein, and this report shall not be deemed to be an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. Deutsche Telekom disclaims beneficial ownership in any Common Stock held by Project 6 or Project 9 if such Common Stock is not subject to the Proxy Agreement.

	/s/ Christoph Appel Attorney-in-fact	10/02/2025
	/s/ Christoph Appel Attorney-in-fact	10/02/2025
	/s/ Christoph Appel Attorney-in-fact	10/02/2025
	/s/ Christoph Appel Attorney-in-fact	10/02/2025
	** Signature of Reporting Person	Date
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FAQ

What transactions did Deutsche Telekom report for TMUS on this Form 4?

The Form 4 reports multiple dispositions of TMUS common stock on 09/30/2025 and 10/01/2025 executed under a 10b5-1 trading plan.

What was the post-transaction beneficial ownership reported?

Following the reported sales the Form lists aggregate beneficial ownership of 634,048,214 shares.

Were the sales pre-planned or ad hoc?

The filings state the transactions were effected pursuant to a 10b5-1 trading plan adopted on June 12, 2025.

What price ranges were disclosed for the share sales?

Footnotes disclose weighted-average sale price ranges approximately from $231.575 to $240.44 per share across the reported transactions.

Which entities filed the Form 4 for these transactions?

The reporting persons include Deutsche Telekom AG, T-Mobile Global Holding GmbH, T-Mobile Global Zwischenholding GmbH, and Deutsche Telekom Holding B.V..