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T-MOBILE US INC (TMUS)

Name: T-MOBILE US INC (TMUS) — Institutional ownership, SEC filings and insider activity
Creator: Sightfile
License: https://www.sec.gov/privacy#dissemination

Institutional ownership, SEC filings and insider activity

Sector: Telecom & Media · SEC CIK 0001283699 · EDGAR filings · Updated 2026-07-23

T-MOBILE US INC (TMUS) has reported institutional ownership of 41.4%, with 1,709 institutional managers holding positions valued at $93.3B per the latest 13F reporting period. SEC filings include an active material impairment disclosure (8-K Item 2.06).

Institutional ownership

41.4%

Institutional managers

1,709

Reported 13F value

$93.3B

Insider activity

504 trans.

−$1.71B net selling

Data flags

1 active

from SEC filings

Filings this week (3)

2026-07-23 — IRANNOTICE filed
2026-07-23 — Quarterly report (10-Q) filed
2026-07-23 — Current report (8-K) filed

Every filing links to the official SEC document. Real-time filing alerts for this company are available inside the app.

Latest updates

2026-07-07 — Current report (8-K) filed
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Insider transaction reported (Form 4)
2026-06-18 — Current report (8-K) filed

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, T-MOBILE US INC has 1,709 institutional holders and institutional ownership of 41.4%.

#	Institution	Reported value	% of tracked total
1	BlackRock, Inc.	$8.22B	8.8%
2	VANGUARD CAPITAL MANAGEMENT LLC	$6.24B	6.7%
3	PRICE T ROWE ASSOCIATES INC /MD/	$5.98B	6.4%
4	STATE STREET CORP	$4.98B	5.3%
5	WELLINGTON MANAGEMENT GROUP LLP	$3.61B	3.9%
6	MORGAN STANLEY	$3.02B	3.2%
7	FMR LLC	$2.63B	2.8%
8	GEODE CAPITAL MANAGEMENT, LLC	$2.60B	2.8%
9	SOFTBANK GROUP CORP.	$2.10B	2.3%
10	VANGUARD PORTFOLIO MANAGEMENT LLC	$2.09B	2.2%

Full holder history and quarter-over-quarter changes are available inside the app.

Insider activity

Insiders reported 504 transactions (1 buys, 437 sells) across 24 reporting insiders, with a net reported value of −$1.71B.

Quarterly net insider value, as reported in Form 4 filings.

Data flags from SEC filings

Active material impairment disclosure (8-K Item 2.06), most recently filed 2020-06-17 (recurring since 2020-06-17) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile

Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-23.