Company · Ownership research

T-Mobile US, Inc. TMUS

CIK 0001283699

Form 4 transactions dated Sep 1, 2023 to Sep 25, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 127 rows; the complete set is available through the API.

Insider filings on file run through 2026-09-03.

Some filings are submitted jointly by several insiders. The SEC form does not apportion the reported figures between them, so results include every joint filer.

Insider purchases & sales

Purchased: $3.88M
Sold: $6.48B

Sep 1, 2023 – Sep 3, 2026
Available records · partial months are marked ·

Insiders in this window

202510 of 30 preview events · 127 available in 2025

Date	Insider	Activity	Trade value (USD)	% of prior holding
2025-12-05	Long Letitia A Director	Sale	$306.44K 1,457 shares sold	21.13% sold Direct holding	▾
2025-11-18	SIEVERT G MICHAEL Director	Sale10b5-1 footnote	$4.82M 22,500 shares sold	7.29% sold Direct holding	▾
2025-11-17	SIEVERT G MICHAEL Director	Sale10b5-1 footnote	$4.88M 22,500 shares sold	6.79% sold Direct holding	▾
2025-11-17	Katz Michael J. Pres, Mkting Stgy & Prods	Sale10b5-1 footnote	$539.77K 2,500 shares sold	1.58% sold Direct holding	▾
2025-11-06	Gopalan Srini President and CEO · Director	Purchase	$1.98M 9,800 shares bought	12.18% added Direct holding	▾
2025-10-29	DEUTSCHE TELEKOM AG · T-Mobile Global Zwischenholding GmbH · T-Mobile Global Holding GmbH · Deutsche Telekom Holding B.V. Director · 10% owner	Sale10b5-1 footnote	$302.91K 1,374 shares sold	Unavailable Direct holding	▾
2025-10-28	DEUTSCHE TELEKOM AG · T-Mobile Global Zwischenholding GmbH · T-Mobile Global Holding GmbH · Deutsche Telekom Holding B.V. Director · 10% owner	Sale10b5-1 footnote	$11.81M 53,507 shares sold	Unavailable Direct holding	▾
2025-10-27	DEUTSCHE TELEKOM AG · T-Mobile Global Zwischenholding GmbH · T-Mobile Global Holding GmbH · Deutsche Telekom Holding B.V. Director · 10% owner	Sale10b5-1 footnote	$14.22M 64,426 shares sold	Unavailable Direct holding	▾
2025-10-24	DEUTSCHE TELEKOM AG · T-Mobile Global Zwischenholding GmbH · T-Mobile Global Holding GmbH · Deutsche Telekom Holding B.V. Director · 10% owner	Sale10b5-1 footnote	$188.34K 856 shares sold	Unavailable Direct holding	▾
2025-10-23	DEUTSCHE TELEKOM AG · T-Mobile Global Zwischenholding GmbH · T-Mobile Global Holding GmbH · Deutsche Telekom Holding B.V. Director · 10% owner	Sale10b5-1 footnote	$7.68M 34,721 shares sold	Unavailable Direct holding	▾

Showing 30 / 127 record groups in 2025. The complete set is available through the API.

T-Mobile US, Inc. · TMUS

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 30 of 127 purchase / sale groups and 30 of 55 other groups; the totals and the monthly series cover the whole window.

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{"ticker":"TMUS","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.