T-Mobile US, Inc. (TMUS) ownership: Top institutional holder: VANGUARD GROUP INC ($8.69B). Insider activity: Net Seller (2 buys, 18 sells). 10 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| VANGUARD GROUP INC | 42816368.00 | $8.69B | 2025-12-31 |
| BlackRock, Inc. | 39115867.00 | $8.22B | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 29726319.00 | $6.24B | 2026-03-31 |
| STATE STREET CORP | 23719298.00 | $4.98B | 2026-03-31 |
| WELLINGTON MANAGEMENT GROUP LLP | 17200244.00 | $3.61B | 2026-03-31 |
| MORGAN STANLEY | 14387032.00 | $3.02B | 2026-03-31 |
| FMR LLC | 12529473.00 | $2.63B | 2026-03-31 |
| GEODE CAPITAL MANAGEMENT, LLC | 12431706.00 | $2.60B | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-16 | |
| Sell | null | 2026-06-11 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.