Skip to main content
TMUS logo

TMUS · T-Mobile US, Inc. · Holdings

Track TMUS — free
Market Cap
$195.58B
Shares
1.07B

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 1,668
Total Value: $82,181,850,299
Total Shares: 490,435,119
Showing 1–100 of 1,737 holdings by value · page 1 of 18

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 1,668 13F filers · Δ vs Mar 31, 2026
Top Holder
8.1%
Sep 2023 → Jun 2026 · range 8.1% – 17.2%
−0.6 pts
Top 5
30.9%
Sep 2023 → Jun 2026 · range 30.4% – 41.0%
+0.4 pts
Top 10
44.5%
Sep 2023 → Jun 2026 · range 43.5% – 52.9%
+1.0 pts
HHI
270
Sep 2023 → Jun 2026 · range 269 – 512
Broadly held+1

Quarterly Activity

vs Mar 31, 2026
New
170
Increased
687
Decreased
641
Sold Out
237
Unchanged
170
Holder count: -67
Institutional value: -13.9%
Shares held: +7.8%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 1,737
Export CSV
Holder Value (USD) % of 13F Shares Open
Key facts CIK 1283699 CUSIP 872590104 13F (30d) 67 filings 56 filers Visit website Investor relations