Michael J. Katz is President at T-Mobile US, Inc. (TMUS). They have made 6 open-market trades across 1 company since 2022, most recently 2026-09-03.
CIK 0001867492
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 6 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| TMUS | 181,930 | $28.9M |
| MNTN | 29,717 | $302K |
| Total | $29.2M |
Shares reported on the most recent Form 4, priced at the 2026-09-08 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TMUS | SELL | 2026-05-01 | 2026-05-04 | $195.81 | $979K | -3.2% | -6.7% | -8.9% |
| TMUS | SELL · 10b5-1 | 2025-11-17 | 2025-11-19 | $215.91 | $540K | -0.6% | -6.9% | +3.9% |
| TMUS | SELL · 10b5-1 | 2025-08-15 | 2025-08-19 | $251.12 | $628K | -3.1% | -8.1% | -17.0% |
| TMUS | SELL | 2025-05-15 | 2025-05-16 | $237.12 | $593K | -1.5% | -4.9% | +3.0% |
| TMUS | SELL | 2025-02-18 | 2025-02-19 | $270.00 | $675K | +3.7% | -2.7% | -8.3% |
| TMUS | SELL · 10b5-1 | 2024-10-01 | 2024-10-02 | $205.30 | $616K | +4.1% | +7.6% | +6.4% |
| TMUS | SELL · 10b5-1 | 2024-07-01 | 2024-07-02 | $177.59 | $533K | +1.6% | +4.6% | +15.4% |
| TMUS | SELL · 10b5-1 | 2024-04-01 | 2024-04-02 | $163.22 | $490K | -1.1% | +1.9% | +10.6% |
| TMUS | SELL · 10b5-1 | 2024-03-05 | 2024-03-06 | $163.99 | $750K | -4.3% | -4.4% | +5.6% |
| TMUS | SELL · 10b5-1 | 2024-02-16 | 2024-02-20 | $161.23 | $2.1M | +0.3% | -1.2% | +0.7% |
| TMUS | SELL · 10b5-1 | 2023-11-24 | 2023-11-28 | $148.95 | $1.0M | +5.0% | +6.7% | +10.0% |
| TMUS | SELL · 10b5-1 | 2023-09-11 | 2023-09-13 | $140.01 | $980K | -1.2% | -0.1% | +13.2% |
| TMUS | SELL | 2023-05-23 | 2023-05-23 | $140.93 | $493K | -6.5% | -5.0% | -4.1% |
| TMUS | SELL | 2023-02-23 | 2023-02-24 | $145.91 | $511K | -0.9% | -0.4% | -6.1% |
| TMUS | SELL | 2022-08-10 | 2022-08-12 | $145.06 | $3.2M | -0.5% | -0.6% | +3.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.