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T-Mobile US (TMUS) SEC Filing (8-K) 2017

Browse all T-Mobile US SEC filings, including Annual reports (10-K), Quarterly reports (10-Q), 8-K, proxy statements (DEF 14A), and insider filings (Form 4). Access official documents by filing date, reporting period, and form type. ...more

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Last updated: March 17, 2026, 5:32 AM ET

SEC Filings

Date

2017

8-K

Material company events (earnings, M&A, or leadership changes)

Feb 24, 2017 04:17 PM

2026

3

Initial disclosure of insider ownership

Aug 4, 2026 04:40 PM

4

Insider ownership (buying, selling) activity

Aug 4, 2026 04:44 PM

IRANNOTICE

Disclosure related to business activities involving Iran

Jul 23, 2026 06:33 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Jul 23, 2026 06:29 AM

10-Q

Quarterly financial results and management updates

Jul 23, 2026 06:32 AM

8-K

Material company events (earnings, M&A, or leadership changes)

Jul 7, 2026 04:29 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:05 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Jun 18, 2026 04:00 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:08 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:07 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:04 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:06 PM

4

Insider ownership (buying, selling) activity

Jun 18, 2026 05:06 PM

4

Insider ownership (buying, selling) activity

Jun 12, 2026 05:09 PM

4

Insider ownership (buying, selling) activity

Jun 9, 2026 05:19 PM

4

Insider ownership (buying, selling) activity

May 26, 2026 05:01 PM

SD

Specialized disclosure report (e.g., conflict minerals)

May 15, 2026 04:01 PM

4

Insider ownership (buying, selling) activity

May 4, 2026 05:36 PM

4

Insider ownership (buying, selling) activity

May 4, 2026 05:35 PM

4

Insider ownership (buying, selling) activity

May 4, 2026 05:37 PM

S-3ASR

Automatic shelf registration for eligible issuers

Apr 30, 2026 06:02 AM

10-Q

Quarterly financial results and management updates

Apr 28, 2026 04:05 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Apr 28, 2026 04:03 PM

IRANNOTICE

Disclosure related to business activities involving Iran

Apr 28, 2026 04:06 PM

ARS

Annual Report to Shareholders

Apr 27, 2026 04:04 PM

DEF 14A

Final shareholder voting details (board elections and executive pay)

Apr 27, 2026 04:01 PM

DEFA14A

Additional or supplemental proxy disclosures

Apr 27, 2026 04:02 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Apr 23, 2026 04:16 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Mar 31, 2026 04:35 PM

8-K

Material company events (earnings, M&A, or leadership changes)

Mar 27, 2026 04:10 PM

SC 13D/A

Updated disclosure of active ownership changes

Mar 23, 2026 05:15 PM

4

Insider ownership (buying, selling) activity

Mar 13, 2026 05:07 PM

4

Insider ownership (buying, selling) activity

Mar 12, 2026 04:23 PM

4

Insider ownership (buying, selling) activity

Mar 6, 2026 05:20 PM

4

Insider ownership (buying, selling) activity

Mar 3, 2026 04:39 PM

4

Insider ownership (buying, selling) activity

Mar 3, 2026 04:40 PM

4

Insider ownership (buying, selling) activity

Feb 26, 2026 04:31 PM

CERT

Certification of exchange listing or compliance

Feb 25, 2026 04:15 PM

4

Insider ownership (buying, selling) activity

Feb 25, 2026 06:15 PM

4

Insider ownership (buying, selling) activity

Feb 25, 2026 06:15 PM

T-Mobile US (Form 8-K) 2017

Current Events / Material company events (earnings, M&A, or leadership changes)

Feb 24, 2017 04:17 PM

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