Katz Michael J. insider trades
Katz Michael J. has filed 23 Form 4s with the SEC that we hold, for T-Mobile US, Inc. (TMUS) (Chief Bus. and Prod. Officer) and MNTN, Inc. (MNTN) (Director). Across all of them we count 0 purchases worth $0 and 15 sales worth $11.7M reported on Form 4. In the last 12 months: 0 purchases ($0) and 2 sales ($1.5M). The largest single trade was a sale of 22,000 shares of T-Mobile US, Inc. worth $3.2M, dated 2022-08-10. The first filing on our record is dated 2022-02-17 and the latest 2026-09-08.
T-Mobile US, Inc. (TMUS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2022-08-10 | S, sale reported on Form 4 | 22,000 | $3.2M | 2022-08-12 |
| 2023-02-23 | S, sale reported on Form 4 | 3,500 | $510.7K | 2023-02-24 |
| 2023-05-23 | S, sale reported on Form 4 | 3,500 | $493.3K | 2023-05-23 |
| 2023-09-11 | S, sale reported on Form 4 | 3,500 | $490.0K | 2023-09-13 |
| 2023-11-24 | S, sale reported on Form 4 | 3,500 | $521.3K | 2023-11-28 |
| 2024-02-16 | S, sale reported on Form 4 | 6,655 | $1.1M | 2024-02-20 |
| 2024-03-05 | S, sale reported on Form 4 | 2,288 | $375.2K | 2024-03-06 |
| 2024-04-01 | S, sale reported on Form 4 | 3,000 | $489.7K | 2024-04-02 |
| 2024-07-01 | S, sale reported on Form 4 | 3,000 | $532.8K | 2024-07-02 |
| 2024-10-01 | S, sale reported on Form 4 | 3,000 | $615.9K | 2024-10-02 |
| 2025-02-18 | S, sale reported on Form 4 | 2,500 | $675.0K | 2025-02-19 |
| 2025-05-15 | S, sale reported on Form 4 | 2,500 | $592.8K | 2025-05-16 |
| 2025-08-15 | S, sale reported on Form 4 | 2,500 | $627.8K | 2025-08-19 |
| 2025-11-17 | S, sale reported on Form 4 | 2,500 | $539.8K | 2025-11-19 |
| 2026-05-01 | S, sale reported on Form 4 | 5,000 | $979.0K | 2026-05-04 |
MNTN, Inc. (MNTN)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 1867492) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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