7 institutions reported holding $346.4M of T-MOBILE US INC (TMUSR) in SEC 13F filings for 2026-06-30. Largest institutional holders: NATIONAL BANK OF CANADA /FI/ ($92.3M), IMC-Chicago, LLC ($91.8M), JPMORGAN CHASE & CO ($55.7M), SIMPLEX TRADING, LLC ($54.3M), GROUP ONE TRADING LLC ($30.2M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | NATIONAL BANK OF CANADA /FI/ | $92.3M | 5,500 | Added |
| 2 | IMC-Chicago, LLC | $91.8M | 547,600 | Trimmed |
| 3 | JPMORGAN CHASE & CO | $55.7M | 320,000 | Added |
| 4 | SIMPLEX TRADING, LLC | $54.3M | 324,000 | Added |
| 5 | GROUP ONE TRADING LLC | $30.2M | 179,900 | Added |
| 6 | CMT Capital Markets Trading GmbH | $22.2M | 132,100 | Added |
| 7 | HRT FINANCIAL LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30