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T-Mobile US TMUS

T-Mobile US is the 77th largest S&P 500 company by market cap, worth $157 billion. 8 directors have filed with the SEC in the last 12 months (who counts), 1 of them an executive. 9 other officers are on file. At 30 Jun 2026, Vanguard was its largest institutional holder, with 4.1% of the company.

CEO
Srini Gopalan
Sector
Communication Services
Sub-industry
Wireless Telecommunication Services
Headquarters
Bellevue, Washington
Founded
1994
More
Wikipedia
Market cap
$157B
77th largest, 23 Oct 2026 close
Revenue
$88.3B
Fiscal year 2025
Price to sales
1.8
Market cap over revenue
Employees
75,000
10-K, 31 Dec 2025
Market cap per employee
$2.1M
Market cap over employees
Connections
2
S&P 500 companies sharing a director or officer

Largest institutional holders

Each fund group's share of T-Mobile US. Where a company has several share classes, the share is of its total value.

13F filings for the quarter to 30 Jun 2026

These five hold 15.4% of T-Mobile US.

Source: SEC Form 13F data sets, SEC XBRL shares outstanding 路 All holders

Board and officers

2 people here also hold roles at other S&P 500 companies.

Roles filed up to 30 Sep 2026

NameTitle
Directors (8)
Srini GopalanPresident and CEOLast filed 3 Mar 2026President and CEO
Raul Marcelo ClaureDirectorDirector
Thomas DannenfeldtDirectorDirector
Srikant M. DatarDirectorDirector
James J. KavanaughDirectorAlso at IBMDirector
Letitia A. LongDirectorDirector
G. Michael SievertDirectorAlso at StarbucksLast filed 25 Feb 2026Director
Teresa TaylorDirectorDirector
Officers (9)
Peter OsvaldikChief Financial OfficerLast filed 19 Feb 2026Chief Financial Officer
Andre AlmeidaChief Commercial OfficerLast filed 3 Sep 2026Chief Commercial Officer
Daniel James DrobacVP & Chief Accounting OfficerLast filed 28 Sep 2026VP & Chief Accounting Officer
Jon FreierChief Operating OfficerLast filed 26 May 2026Chief Operating Officer
Michael J. KatzChief Bus. and Prod. OfficerLast filed 4 May 2026Chief Bus. and Prod. Officer
Deeanne KingChief People OfficerLast filed 18 Feb 2026Chief People Officer
Mark Wolfe NelsonChief Legal Officer & GCLast filed 14 Sep 2026Chief Legal Officer & GC
Christopher SambarChief Enterprise OfficerLast filed 4 Aug 2026Chief Enterprise Officer
John SawChief Technology OfficerLast filed 18 Feb 2026Chief Technology Officer

Source: SEC insider filings (Forms 3, 4 and 5), T-Mobile US's Form 4 filings 路 All directors and officers

Companies that share people with T-Mobile US

Each person's title here, then at the other company.

  • IBM IBM
    • James J. Kavanaugh: Director here, Sr. VP and CFO there
  • Starbucks SBUX
    • G. Michael Sievert: Director here, Director there

Source: SEC insider filings 路 See the whole network

T-Mobile US's market cap since December 2008

Marked weeks are changes in the share count, such as a merger, not market moves.

Weekly, up to 23 Oct 2026

Show equal percentage changes as equal steps.
201020122014201620182020202220242026$157B

Source: Yahoo Finance closing prices, SEC XBRL shares outstanding

Workforce

Headcount at 31 Dec 2025

Employees
75,000
As of December 31, 2025, we employed approximately 75,000 full-time and part-time employees, including network, retail, administrative and customer support functions.
T-Mobile US Form 10-K

Source: T-Mobile US Form 10-K

Insider trades

Open-market buys and sales by directors and officers. Grants, option exercises and shares withheld for tax are left out.

Trades from 30 Sep 2025 to 30 Sep 2026

Directors and officers sold $164 million of stock in 17 sales and bought $3.0 million in 2 purchases in the 12 months to 30 Sep 2026.

DatePersonTitleTypeSharesValue
10 Sep 2026SaleDaniel James DrobacVP & Chief Accounting OfficerVP & Chief Accounting OfficerSale772$138K
21 May 2026SaleJon FreierChief Operating OfficerChief Operating OfficerSale4,799$912K
1 May 2026BuyAndre AlmeidaChief Commercial OfficerChief Commercial OfficerBuy5,097$1.0M
1 May 2026SaleMichael J. KatzChief Bus. and Prod. OfficerChief Bus. and Prod. OfficerSale5,000$979K
10 Mar 2026SaleSrikant M. DatarDirectorDirectorSale1,000$218K
4 Mar 2026SaleSrikant M. DatarDirectorDirectorSale3,291$728K
24 Feb 2026SaleMark Wolfe NelsonChief Legal Officer & GCChief Legal Officer & GCSale2,329$518K
24 Feb 2026SaleG. Michael SievertDirectorDirectorSale1,089$242K
23 Feb 2026SaleG. Michael SievertDirectorDirectorSale13,911$3.1M
19 Feb 2026SaleG. Michael SievertDirectorDirectorSale80,000$17M

Showing 10 of 19 trades

Source: SEC insider transactions data sets, T-Mobile US's Form 4 filings

Trades by members of Congress and officials

Trades members of Congress and senior executive branch officials disclosed, including their families'. Amounts are filed as ranges.

Trades from 20 Oct 2023 to 20 Oct 2026

13 people disclosed 32 purchases and 30 sales of T-Mobile US stock since October 2023.

DateMember or officialTypeAmount
28 Aug 2026Donald J Trump (President)President 路 BoughtPurchase$15,001 to $50,000$15K to $50K
23 Jul 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
23 Jun 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
12 Jun 2026Donald J Trump (President)President 路 BoughtPurchase$15,001 to $50,000$15K to $50K
5 Jun 2026Rohit Khanna (House, D-CA)House, D-CA 路 BoughtPurchase$1,001 to $15,000$1K to $15K
2 Jun 2026Rohit Khanna (House, D-CA)House, D-CA 路 BoughtPurchase$1,001 to $15,000$1K to $15K
22 May 2026Donald J Trump (President)President 路 BoughtPurchase$15,001 to $50,000$15K to $50K
28 Apr 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
27 Apr 2026Donald J Trump (President)President 路 SoldSale$1,001 to $15,000$1K to $15K
20 Apr 2026Donald J Trump (President)President 路 SoldSale$50,001 to $100,000$50K to $100K

Showing 10 of 62 trades

Source: House, Senate and OGE disclosures via the Congress trading monitor

Not on file: no WARN layoff notices under its own name since October 2023.