Welcome to our dedicated page for T Mobile Us SEC filings (Ticker: TMUS), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Every quarter T-Mobile US, Inc. pulls back the curtain on how its Un-carrier strategy is reshaping wireless. Inside each SEC document you’ll find details on postpaid phone net adds, 5G spectrum deployments, and the ongoing Sprint integration cost savings. Navigating those disclosures can feel daunting—10-K pages chart network capex while 8-Ks flag sudden spectrum auctions or leadership changes. Stock Titan’s platform turns that complexity into clarity.
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Deutsche Telekom and its subsidiaries reported multiple sales of T-Mobile US (TMUS) common stock under a 10b5-1 trading plan adopted March 13, 2025. The Form 4 shows a series of dispositions executed on August 13–15, 2025, with individual sale lots ranging from 100 to 41,883 shares and reported weighted-average prices in footnotes spanning roughly $249.51 to $256.14 per share. The reporting entities are Deutsche Telekom AG and several wholly owned subsidiaries, each identified as a director and a 10% owner of TMUS. The reports state the sellers disclaim beneficial ownership except to the extent of any pecuniary interest, and that full breakdowns of per-transaction prices are available upon written request.
T-Mobile US, Inc. (TMUS) insider Michael Katz plans to sell 2,500 shares of common stock held from a restricted stock vesting on 03/04/2024. The filing lists an approximate sale date of 08/15/2025 on NASDAQ through Fidelity Brokerage Services and shows the shares represent part of roughly 1.125 billion shares outstanding. The filing also discloses a prior sale of 2,500 shares on 05/15/2025 for $592,800 and an aggregate market value for the proposed 2,500-share transaction of $627,800, indicating a per-share market valuation implied by those totals. The notice affirms the seller does not possess undisclosed material nonpublic information.
Deutsche Telekom and its direct subsidiaries report aggregate beneficial ownership of 636,411,404 shares of T‑Mobile US common stock, representing 56.5% of the outstanding class. The reported stake comprises 585,550,339 shares held by DT Holding plus 32,861,065 shares (Project 6) and 18,000,000 shares (Project 9) that are described in the filing as subject to a proxy.
The amendment also discloses that Project 6 and Project 9 reported an unregistered block sale of 182,043 and 9,251,557 shares, respectively. Deutsche Telekom states it disclaims beneficial ownership of shares held by Project 6 and Project 9 if those shares are not subject to the proxy.
Deutsche Telekom and affiliated entities reported the sale of 209,520 shares of T‑Mobile US, Inc. (TMUS) in multiple transactions on August 8, 11 and 12, 2025, executed under a 10b5‑1 trading plan adopted March 13, 2025. The Form 4 shows block-level weighted‑average prices and disclosed price ranges for each sale, with per‑block weighted prices listed roughly between $243.29 and $252.40 per share. The reporting persons are Deutsche Telekom AG and several wholly owned affiliates that serve as directors and 10% owners; they disclaim beneficial ownership except for any pecuniary interest. Footnotes note a proxy agreement with SoftBank and its reported sale of 9,433,600 shares that affected the shares the reporting persons may be deemed to beneficially own.
The Reporting Persons—SoftBank Group Corp. and affiliated entities—filed Amendment No. 18 to their Schedule 13D for T-Mobile US common stock. On August 6, 2025 Project 4 LLC, Project 6 LLC and Project 9 LLC sold an aggregate of 13,000,000 shares in an unregistered block sale under Rule 144 for net proceeds of approximately $3.02 billion, representing about 1.16% of outstanding common stock as of July 18, 2025. Individual sale breakdown: Project 4 sold 3,566,400 shares, Project 6 sold 182,043, and Project 9 sold 9,251,557. As a result, the Reporting Persons’ collective beneficial ownership fell below 5% and this Amendment is the final Schedule 13D filing; the cover pages show SoftBank beneficially owns 50,861,065 shares (4.52%). The filing also states the Reporting Persons will continue to monitor and evaluate their investment.
Form 4 filing (08/07/2025) – T-Mobile US (TMUS)
Deutsche Telekom AG and its wholly-owned subsidiaries (collectively the “Reporting Persons”), which are directors-by-deputization and >10% owners of TMUS, disclosed open-market sales executed under a Rule 10b5-1 plan adopted 13 Mar 2025.
- Sale dates: 6-7 Aug 2025
- Total shares sold: 139,680 common shares (11 individual trades)
- Price range: $235.70 – $243.14; weighted averages per trade noted in footnotes (2)-(12)
- Estimated proceeds: ≈ $33 million (shares × reported weighted averages)
- Post-sale ownership: 646,054,524 common shares held directly
The divestiture reduces Deutsche Telekom’s stake by roughly 0.02%, leaving its majority position essentially intact. No derivative transactions were reported.