Katz Michael J.
SEC insider (Form 3/4/5 filer). CIK 0001867492. Director at MNTN, Inc. (MNTN) and 1 other issuer. 16 reported Form 4/5 transactions since Sep 2024; latest on Sep 3, 2026. Located in AUSTIN, TX.
Companies Katz Michael J. has filed insider reports for
- MNTN, Inc. (MNTN): Director
- T-Mobile US, Inc. (TMUS): Officer, Chief Bus. and Prod. Officer
Katz Michael J.
CIK: 0001867492
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)6 (37.5%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)6 (37.5%)
Compensation grants
Other (G, F, J, C, D, …)4 (25.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- Sep 3, 2026MNTN
MNTN, Inc.
AwardDirect29.7K shares- - May 1, 2026TMUS
T-Mobile US, Inc.
SaleDirect5K shares at avg. $195.81$979K - Feb 15, 2026TMUS
T-Mobile US, Inc.
AwardDirect32.4K shares- - Feb 15, 2026TMUS
T-Mobile US, Inc.
Tax PaymentDirect3.6K shares at avg. $219.50$784K - Feb 15, 2026TMUS
T-Mobile US, Inc.
AwardDirect9.1K shares- - Feb 15, 2026TMUS
T-Mobile US, Inc.
Tax PaymentDirect7.1K shares at avg. $219.50$1.6M - Nov 17, 2025TMUS
T-Mobile US, Inc.
SaleDirect2.5K shares at avg. $215.91$540K - Aug 15, 2025TMUS
T-Mobile US, Inc.
SaleDirect2.5K shares at avg. $251.12$628K - May 15, 2025TMUS
T-Mobile US, Inc.
SaleDirect2.5K shares at avg. $237.12$593K - Apr 1, 2025TMUS
T-Mobile US, Inc.
AwardDirect22.9K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 3, 2026 |  MNTN MNTN, Inc. | Award | 29,717 | - | $0 | Direct |
| May 1, 2026 |  TMUS T-Mobile US, Inc. | Sale | 5,000 | $195.81 | $979,050 | Direct |
| Feb 15, 2026 | TMUS T-Mobile US, Inc. | Award | 32,365 | - | $0 | Direct |
| Feb 15, 2026 | TMUS T-Mobile US, Inc. | Tax Payment | 3,571 | $219.50 | $783,924 | Direct |
| Feb 15, 2026 | TMUS T-Mobile US, Inc. | Award | 9,076 | - | $0 | Direct |
| Feb 15, 2026 | TMUS T-Mobile US, Inc. | Tax Payment | 7,142 | $219.50 | $1,567,588 | Direct |
| Nov 17, 2025 | TMUS T-Mobile US, Inc. | Sale | 2,500 | $215.91 | $539,775 | Direct |
| Aug 15, 2025 | TMUS T-Mobile US, Inc. | Sale | 2,500 | $251.12 | $627,800 | Direct |
| May 15, 2025 | TMUS T-Mobile US, Inc. | Sale | 2,500 | $237.12 | $592,800 | Direct |
| Apr 1, 2025 | TMUS T-Mobile US, Inc. | Award | 22,880 | - | - | Direct |
1-10 of 16 transactions