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.
T-Mobile US, Inc. filings document the regulatory record for a Nasdaq-listed wireless carrier with common stock and multiple series of senior notes outstanding. Recent 8-K reports furnish quarterly and annual operating results, investor factbooks, capital markets updates and other material events tied to the company’s wireless and broadband business.
Proxy materials describe annual meeting proposals, director elections, auditor ratification and governance matters. Other filings identify registered debt securities, note offerings by T-Mobile USA, Inc., capital-structure disclosures and exhibit records for press releases, investor materials and financing documents.
Deutsche Telekom AG and four wholly owned subsidiaries — all more than 10% owners and directors-by-deputization of T-Mobile US, Inc. (NYSE: TMUS) — filed a Form 4 disclosing open-market sales of common stock executed between 9 July 2025 and 11 July 2025.
- Total shares sold: 209,070.
- Price range (weighted-average prices): $226.76 – $234.85 per share.
- Proceeds (rough estimate): about $48 million, using the weighted-average prices reported for each tranche.
- Residual ownership: 647,381,484 TMUS shares held directly after the final sale on 11 July 2025.
- Ownership dilution: the divestiture represents roughly 0.03% of the reporting group’s TMUS stake (209,070 ÷ 647.6 million).
- Plan-based trading: all transactions were executed under a Rule 10b5-1 plan adopted 13 March 2025, indicating the sales were pre-scheduled.
The filing shows no derivative activity and no change in the group’s director status. Given the tiny percentage sold relative to the controlling position, the move appears to be routine liquidity management rather than a strategic reduction. However, it confirms ongoing supply from the majority shareholder, a factor investors may monitor for future volume and price dynamics.
On July 2, 2025, T-Mobile US, Inc. (NASDAQ: TMUS) filed a Form 8-K disclosing that it and its wholly-owned subsidiary, T-Mobile USA, Inc., have extended the expiration date of their Exchange Offers and related Consent Solicitations for all outstanding senior notes of United States Cellular Corporation (USCC). The offers, originally scheduled to expire at 5:00 p.m. ET on July 1, 2025, will now expire at 5:00 p.m. ET on August 1, 2025, unless further extended or terminated. No other terms of the Exchange Offers have been changed.
The Exchange Offers were first launched on May 23, 2025 and are being conducted under an effective Registration Statement on Form S-4 (No. 333-287414). They form an integral part of the Securities Purchase Agreement dated May 24, 2024, under which T-Mobile intends to acquire substantially all of USCC’s wireless operations and select spectrum assets. Exhibit 99.1 contains the press release announcing the extension; no additional financial statements were filed.
Key takeaways for investors:
- The one-month extension modestly lengthens the transaction timeline but does not affect pricing, consideration, or covenants.
- No incremental financial data, guidance changes, or regulatory concerns were disclosed in the filing.
- The Exchange Offers remain critical to closing the USCC asset purchase, but management signals the process is continuing without material revision.
Overall, the event is operational rather than financial in nature and is expected to have a neutral near-term impact on TMUS equity or debt valuation unless additional delays occur.
T-Mobile US (NASDAQ: TMUS) Form 4 filed 25-Jun-2025 discloses insider sales by 10% owner Deutsche Telekom AG and affiliates totaling 209,520 common shares from 23-25 June 2025 under a Rule 10b5-1 plan adopted 13-Mar-2025.
The 12 open-market transactions were executed at weighted-average prices of $222.56-$231.23, generating roughly $48 million in proceeds. Post-sale beneficial ownership stands at 648,149,724 shares, maintaining majority control; no derivative securities were involved.
Although the dollar amount is material, the sale equals ~0.03% of Deutsche Telekom’s stake, suggesting limited impact on governance or capital structure.
Deutsche Telekom AG and its subsidiaries have filed Amendment No. 32 to their Schedule 13D regarding ownership in T-Mobile US. The filing discloses that the reporting entities beneficially own 648,359,244 shares of T-Mobile common stock, representing 57.1% ownership of the company.
The beneficial ownership consists of:
- 588,064,579 shares held directly by Deutsche Telekom Holding B.V.
- 33,043,108 shares held by SoftBank's Project 6 LLC (subject to proxy)
- 27,251,557 shares held by SoftBank's Project 9 LLC (subject to proxy)
A significant transaction was reported where Project 9 sold 21,500,000 shares in an unregistered block sale on June 17, 2025. Deutsche Telekom maintains voting control through proxy rights over SoftBank's holdings while disclaiming beneficial ownership of shares held by Project 6 and Project 9 that are not subject to the proxy agreement.
Deutsche Telekom AG and its subsidiaries reported significant insider trading activity in T-Mobile US (TMUS) stock through a pre-planned 10b5-1 trading program. Over three trading days (June 17-20, 2025), the company executed multiple sales transactions totaling 209,520 shares at prices ranging from $220.12 to $223.14 per share.
Key transaction details:
- Largest single-day sale occurred on June 17, with 69,840 shares sold
- Sales were executed through a 10b5-1 plan established on March 13, 2025
- Following transactions, Deutsche Telekom holds 648,359,244 shares
- Filing corrects previous beneficial ownership reporting to include 81,794,665 shares held by SoftBank under a proxy agreement
Deutsche Telekom maintains significant control through board representation, with several executives serving as directors-by-deputization, including CEO Timotheus Hottges and other senior management. The company remains a 10% owner of T-Mobile US.