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Livermore
Livermore
ZHEN

T-Mobile US, Inc.

TMUSL
Exchange
Nasdaq
Industry
Radiotelephone Communications
SEC CIK
0001283699

In the last 90 days, T-Mobile US, Inc. insiders filed 0 open-market purchases and 1 sale; no institution reported holding it in 13F filings for Q2 2026; no superinvestor holds it.

Other share classesTMUSTMUSITMUSZ

Holders of 5% or more of TMUSL

Holders whose latest Schedule 13D or 13G filing reports 5% or more of T-Mobile US, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of TMUSL
HolderLatest formStakeChangeFirst filedLatest filingFiling
Picton Mahoney Asset Management13G/A6.48%1.02M shares0.00 ppfrom 6.48%Oct 15, 20252 filingsOct 16, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

2 Schedule 13D and 13G filings on T-Mobile US, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on TMUSL
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 16, 20255:55 PM ETPicton Mahoney Asset Management13G/A6.48%1.02M shares0.00 ppfrom 6.48%Oct 16, 2025SEC
Oct 15, 20259:14 AM ETPicton Mahoney Asset Management13G6.48%1.02M sharesNewAug 29, 2025SEC

Form 144: proposed insider sales

12 notices from officers, directors and other affiliates planning to sell T-Mobile US, Inc. shares, newest first.

Form 144 notices for TMUSL
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Sep 13, 202312:20 PM ETBazzano DaraOfficer3.95K$558.8KSep 13, 2023Fidelity Brokerage Services LLCSEC
Sep 11, 202312:00 PM ETFreier JonOfficer15.0K$2.10MSep 11, 202310b5-1Fidelity Brokerage Services LLCSEC
Sep 11, 202311:32 AM ETKatz Michael J.Officer3.50K$490.0KSep 11, 202310b5-1Fidelity Brokerage Services LLCSEC
Aug 11, 20235:09 PM ETSievert G MichaelOfficer · Director20.0K$2.76MAug 11, 202310b5-1Fidelity Brokerage Services LLCSEC
Aug 10, 20234:38 PM ETSievert G MichaelOfficer · Director20.0K$2.77MAug 10, 202310b5-1Fidelity Brokerage Services LLCSEC
Jul 10, 202311:01 AM ETFreier JonOfficer15.0K$2.10MJul 10, 202310b5-1Fidelity Brokerage Services LLCSEC
Jun 12, 20235:03 PM ETRaul Marcelo ClaureDirector192.6K$25.0MJun 12, 2023UBS Financial Services IncSEC
May 23, 202310:46 AM ETKatz Michael J.Officer3.50K$493.3KMay 23, 202310b5-1Fidelity Brokerage Services LLCSEC
May 12, 202310:04 AM ETSievert G MichaelOfficer20.0K$2.85MMay 12, 202310b5-1Fidelity Brokerage Services LLCSEC
May 11, 202310:31 AM ETSievert G MichaelOfficer · Director20.0K$2.83MMay 11, 202310b5-1Fidelity Brokerage Services LLCSEC
May 5, 20233:08 PM ETKing DeeanneOfficer13.2K$1.89MMay 5, 2023Fidelity Brokerage Services LLCSEC
Apr 5, 20234:03 PM ETOsvaldik PeterOfficer20.0K$3.00MApr 5, 202310b5-1Fidelity Brokerage Services LLCSEC