T-Mobile US, Inc. (TMUS)

About T-Mobile US, Inc.

T-Mobile US, Inc. provides wireless communications and broadband services to postpaid and prepaid customers in the United States. The company offers a range of service plans, wireless devices, and accessories through its brands including T-Mobile, Metro by T-Mobile, and Mint Mobile. It operates a nationwide 5G network and serves consumers, businesses, wholesale partners, and other customers with products such as smartphones, wearables, tablets, 5G broadband gateways, and fiber internet services.

Snapshot

Fundamentals are from SEC filings. P/E and market cap are derived from recent market prices, refreshed on a rolling basis (typically within the past week).

Peer comparison

Where T-Mobile US’s fundamentals sit among the 215 Communication Services companies. Each figure is ranked only against peers that report it, from lowest (left) to highest (right).

T-Mobile US’s operating margin of 20.7% ranks in the 90th percentile of the 186 Communication Services companies reporting it. T-Mobile US’s FCF margin of 20.4% ranks in the 88th percentile of the 165 Communication Services companies reporting it.

1 open-market insider buy totaling $1.0M in the last 90 days, against 2 sales totaling $1.9M. For context, about 16% of companies in the universe saw any open-market insider buying in the same window. Browse insider activity →

Percentiles describe where a figure sits among sector peers reporting it (100th = highest). They are position within a peer group, not a rating, and not investment advice. Short interest ranking uses days to cover from FINRA Consolidated Short Interest data; FINRA is the owner and source of that data, included at no additional charge.

Institutional ownership

Held by 5 of the superinvestors we track (plus 7 quant / multi-strat books), based on each investor’s most recent 13F (latest Q1 2026).

From quarterly Form 13F filings, which can be up to 45 days delayed. Long US-listed positions only: excludes short positions, options, cash, bonds, and non-US holdings, so this is not a manager’s complete portfolio. Counts are of the investors we track, not all institutions. Not investment advice.

Recent insider activity

Non-derivative buys and sells (codes P/S) reported by officers, directors and 10% owners on SEC Form 4.

Reported non-derivative purchases and sales (codes P/S) — which may be open-market or private; excludes option exercises, grants, and shares withheld for taxes. Dates shown are the trade date; a Form 4 can be filed days to years later. A sale can be routine (e.g. a pre-set 10b5-1 plan), so read individual transactions in context. From SEC Form 4. Not investment advice.

Short interest

Total shares sold short as of each twice-monthly FINRA settlement. Rising short interest means more investors are positioned against the stock; days to cover estimates how many trading days of average volume that position represents.

Source: FINRA Consolidated Short Interest. FINRA is the owner and source of the FINRA-supplied data, which is included at no additional charge for your own personal or professional use; republishing or redistributing it is not permitted. Settlement dates are shown; FINRA publishes each settlement about nine business days later, so the latest figure can be two to four weeks old. Not presented as a percentage of float. No FINRA endorsement of this product is implied. Not investment advice.

Quarterly trend (as reported)

Latest 8 reported quarters, from company XBRL filings on SEC EDGAR.

Company facts

Recent SEC filings

Largest Communication Services peers

All Communication Services companies →

TMUS head to head