Katz Michael J. (CIK 1867492) reported 10 SEC Form 4 insider transactions across 2 companies over the past 18 months (most recent 2026-09-08). Recent activity: Buy MNTN (29,717 shares), Sell TMUS (5,000 shares), Buy TMUS (32,365 shares), Sell TMUS (7,142 shares), Buy TMUS (9,076 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-08 | MNTN, Inc. (MNTN) | Director | Buy | 29,717 | $0 |
| 2026-05-04 | T-Mobile US, Inc. (TMUS) | Chief Bus. and Prod. Officer | Sell | 5,000 | $979,050 |
| 2026-02-18 | T-Mobile US, Inc. (TMUS) | Chief Bus. and Prod. Officer | Buy | 32,365 | $0 |
| 2026-02-18 | T-Mobile US, Inc. (TMUS) | Chief Bus. and Prod. Officer | Sell | 7,142 | $1.6M |
| 2026-02-18 | T-Mobile US, Inc. (TMUS) | Chief Bus. and Prod. Officer | Buy | 9,076 | $0 |
| 2026-02-18 | T-Mobile US, Inc. (TMUS) | Chief Bus. and Prod. Officer | Sell | 3,571 | $783,924 |
| 2025-11-19 | T-Mobile US, Inc. (TMUS) | Pres, Mkting Stgy & Prods | Sell | 2,500 | $539,775 |
| 2025-08-19 | T-Mobile US, Inc. (TMUS) | Pres, Mkting Stgy & Prods | Sell | 2,500 | $627,800 |
| 2025-05-16 | T-Mobile US, Inc. (TMUS) | Pres, Mkting Stgy & Prods | Sell | 2,500 | $592,800 |
| 2025-04-03 | T-Mobile US, Inc. (TMUS) | Pres, Mkting Stgy & Prods | Buy | 22,880 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-09-08