DOSSIER · 13F Holders · Q2 2026Communication Services · Radiotelephone Communications
TMUS

T-MOBILE US INC

1,762 institutions still hold T-MOBILE US INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 872590104·Radiotelephone Communications·1,762 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$49.2B
visible holders
Holders
1,762
filers reporting
Concentration
13.47%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

T-Mobile US Inc (ticker TMUS, CUSIP 872590104) is the third-largest U.S. wireless carrier by subscribers, trailing Verizon and AT&T, but consistently winning the growth-share and customer-satisfaction dimensions through aggressive investment in 5G mid-band spectrum, unlimited-plan price leadership, and post-merger integration of legacy Sprint spectrum assets. Its 13F institutional holder set is compact: eleven institutions reported $7.81M in aggregate Q2 2026. The quarter's dominant trade was MassMutual Private Wealth & Trust adding 2,922 shares — from 12,216 to 15,138 — enlarging its TMUS position by 23.9% in a quarter, reflecting continued conviction in the carrier's share-gain trajectory and improving EBITDA margins. The valueChange of -$26.6K indicates TMUS stock declined slightly in price during Q2; MassMutual's addition was therefore executed at a modestly lower entry point. The selling was told by Eastern Bank (-341 shares, -$167K), Versant Capital (-242 shares, -$115K), Hilltop National Bank (-67 shares, -$406K from the elevated prior quarter base), and Sarver Vrooman (-6 shares, -$9K). CX Institutional cut 935 shares and -$441 from a 5,793-share base. Only Cedar Mountain added 12 shares. No new entrants this quarter.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$6.6B39.5M0.10%Q2 2026
02
PRICE T ROWE ASSOCIATES INC /MD/
CIK 0000080255
$6.0B28.5M0.69%Q1 2026
03
Invesco Ltd.
CIK 0000914208
$5.3B31.9M0.42%Q2 2026
04
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$4.9B29.4M0.11%Q2 2026
05
STATE STREET CORP
CIK 0000093751
$4.2B25.0M0.12%Q2 2026
06
GOLDMAN SACHS GROUP INC
CIK 0000886982
$3.2B19.0M0.28%Q2 2026
07
MORGAN STANLEY
CIK 0000895421
$2.4B14.5M0.13%Q2 2026
08
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$2.1B12.8M0.11%Q2 2026
09
Vanguard Portfolio Management
CIK 0002100121· Index
$1.7B10.4M0.08%Q2 2026
10
SOFTBANK GROUP CORP.
CIK 0001065521
$1.7B10.0M9.23%Q2 2026
11
WELLINGTON MANAGEMENT GROUP LLP
CIK 0000902219
$1.4B8.6M0.25%Q2 2026
12
FMR LLC
CIK 0000315066
$1.4B8.2M0.06%Q2 2026
13
NORGES BANK
CIK 0001374170· Sovereign
$1.3B7.9M0.13%Q2 2026
14
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$1.1B5.4M0.15%Q1 2026
15
FRANKLIN RESOURCES INC
CIK 0000038777
$1.1B6.7M0.24%Q2 2026
16
DODGE & COX
CIK 0000200217
$1.1B6.3M0.56%Q2 2026
17
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$958M5.7M0.43%Q2 2026
18
Bank of New York Mellon Corp
CIK 0001390777
$839M5.0M0.14%Q2 2026
19
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$838M5.0M0.07%Q2 2026
20
BARCLAYS PLC
CIK 0000312069
$825M4.9M0.16%Q2 2026
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Insiders at T-MOBILE US INC
Almeida AndreDrobac Daniel JamesLong Letitia ADannenfeldt ThomasTaylor TeresaKavanaugh James JDatar Srikant M.Claure Raul Marcelo