| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
Director | Chief Bus. and Prod. Officer | President, Mkting Stgy & Prods +3 more
2 companies
Michael J. Katz is Chief Bus. and Prod. Officer at TMUS, with reported holdings spanning 2 companies. Michael J. Katz's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $28.4M at current prices.
Our model assigns Michael J. Katz a middling insider score of 50/100, based on 15 past trades. Over a 12-month horizon, 30.8% of those trades were profitable, with an average 12-month return of -22.8%.
Michael J. Katz's largest disclosed position is in TMUS as Chief Bus. and Prod. Officer, worth about $28.1M. The TMUS filings lean toward selling, a net 68,943 shares.
Michael J. Katz has 23 Form 4 filings on record from February 2022 to September 2026, across 2 companies: Director at Mntn (MNTN), 2026; Chief Bus. and Prod. Officer at T-Mobile US (TMUS), 2022–2026.
The 41 reported transactions were 15 open-market sales, 14 tax withholdings and 12 stock awards.
Counted by filing, the open-market trades come to no purchases and 15 sales worth about $11.7M.
The largest open-market sale was 22,000 shares of TMUS at an average $145.06 on August 10, 2022, about $3.2M. Twelve months later TMUS was down 5%.
9 of the 13 sales since April 2023 were made under a Rule 10b5-1 trading plan; the other 4 were not.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2026 | TMUS T-Mobile Us, Inc. | Chief Bus. and Prod. Officer | Sell | 5,000 | $195.81 | $979,050.00 | -2.7% | -11.6% | - | |
| Nov 17, 2025 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 2,500 | $215.91 | $539,775.00 | -1.6% | +1.7% | - | |
| Aug 15, 2025 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 2,500 | $251.12 | $627,800.00 | -1.6% | -15.7% | -28.3% | |
| May 15, 2025 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell | 2,500 | $237.12 | $592,800.00 | -1.5% | +4.4% | -22.9% | |
| Feb 18, 2025 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell | 2,500 | $270.00 | $675,000.00 | -1.7% | -7.2% | -19.0% | |
| Oct 1, 2024 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 3,000 | $205.30 | $615,900.00 | -2.4% | +7.1% | +13.2% | |
| Jul 1, 2024 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 3,000 | $177.59 | $532,770.00 | -2.4% | +15.2% | +34.9% | |
| Apr 1, 2024 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 3,000 | $163.22 | $489,660.00 | -2.3% | +10.1% | +65.1% | |
| Mar 5, 2024 | TMUS T-Mobile Us, Inc. | President, Mkting Stgy & Prods | Sell10b5-1 | 2,288 | $163.99 | $375,209.12 | -1.7% | +4.3% | +58.4% | |
| Feb 16, 2024 | TMUS T-Mobile Us, Inc. | President, Mix | Sell10b5-1 | 6,655 | $161.23 | $1,072,985.65 | -5.0% | +2.0% | +68.8% |