Company Analysis

T-Mobile US, Inc. (TMUS)

Nasdaq: TMUS · Radiotelephone Communications · Bellevue, WA · filing with the SEC since 2004
Grade5.9
◀ Past 6.8● Present 6.8▶ Future 4.7

Filings

686 filings since 2017 beside 764 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 28 days after the quarter ended. The proxy statement was last filed Apr 27, 2026.

Filings a yearinsider forms included
12115912110715219620394
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 14 times in the last 36 months, the newest Oct 28, 2026.SEC letters: 2 in the last 36 months, the newest May 20, 2025.
Insider forms 764

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Oct 29, 2026 SCHEDULE 13D/A Activist holder update, amended
Oct 28, 2026 IRANNOTICE Iran-related disclosure notice
Oct 28, 2026 10-Q Quarterly report Sep 30, 2026
Oct 28, 2026 8-K items 2.02, 9.01 Results released · Current report
Oct 28, 2026 8-K item 5.02 Officer or director change · Current report Oct 26, 2026
Sep 3, 2026 8-K items 5.02, 7.01, 9.01 Officer or director change; Investor disclosure (Regulation FD) · Current report Sep 1, 2026
Jul 23, 2026 IRANNOTICE Iran-related disclosure notice
Jul 23, 2026 10-Q Quarterly report Jun 30, 2026
Jul 23, 2026 8-K items 2.02, 9.01 Results released · Current report
Jul 7, 2026 8-K items 5.02, 7.01, 9.01 Officer or director change; Investor disclosure (Regulation FD) · Current report Jul 2, 2026
Jun 18, 2026 8-K item 5.07 Shareholder vote · Current report Jun 16, 2026
May 15, 2026 SD Conflict minerals report
Apr 30, 2026 S-3ASR Shelf registration
Apr 28, 2026 IRANNOTICE Iran-related disclosure notice
Apr 28, 2026 10-Q Quarterly report Mar 31, 2026
Apr 28, 2026 8-K items 2.02, 9.01 Results released · Current report
Apr 27, 2026 ARS Annual report to shareholders Dec 31, 2025
Apr 27, 2026 DEFA14A Extra proxy material
Apr 27, 2026 DEF 14A Proxy statement Jun 16, 2026
Apr 23, 2026 8-K item 8.01 Other event · Current report
Mar 31, 2026 8-K item 8.01 Other event · Current report
Mar 27, 2026 8-K item 5.02 Officer or director change · Current report Mar 26, 2026
Mar 23, 2026 SCHEDULE 13D/A Activist holder update, amended
Feb 25, 2026 CERT Exchange listing certification
Feb 19, 2026 8-A12B Class of securities registered for listing
Feb 19, 2026 8-K items 8.01, 9.01 Other event · Current report
Feb 17, 2026 424B5 Shelf offering
Feb 12, 2026 FWP Offering communication
Feb 12, 2026 424B5 Shelf offering
Feb 11, 2026 IRANNOTICE Iran-related disclosure notice
Feb 11, 2026 10-K Annual report Dec 31, 2025
Feb 11, 2026 8-K items 2.02, 9.01 Results released · Current report
Feb 11, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jan 12, 2026 8-K items 8.01, 9.01 Other event · Current report
Jan 9, 2026 424B5 Shelf offering
Jan 8, 2026 FWP Offering communication
Jan 7, 2026 424B5 Shelf offering
Jan 7, 2026 POSASR Automatic shelf amended
Jan 6, 2026 8-K items 1.01, 2.03, 9.01 Major agreement signed; New debt or obligation taken on · Current report Jan 5, 2026
Dec 11, 2025 8-K item 8.01 Other event · Current report
40 of 686 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton TMUS · research, not advice