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Insider · CIK 0001867492

Michael J. Katz

officerdirector

Files at TMUS (T-Mobile US, Inc.), MNTN (MNTN, Inc.). First filing Feb 19, 2025, latest Feb 19, 2025.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 1
$0 bought, $675k sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

TMUS: T-Mobile US, Inc.

TMUSOct 9, 2026 · close 148.58

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
30Weak
TMUSsell 510b5-1
T-Mobile US, Inc.
$675k
2,500 shares
-2%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Sep 3, 2026MNTN
MNTN, Inc.
AGrant or award
Class A Common Stock
+29,717$0.00$029,71734 d ago
Feb 15, 2025TMUS
T-Mobile US, Inc.
AGrant or award
Common Stock
+18,801$0.00$0138,488Feb 19, 2025
Feb 15, 2025TMUS
T-Mobile US, Inc.
FTax withholding
Common Stock
-6,760$270.82$1.8M131,728Feb 19, 2025
Feb 15, 2025TMUS
T-Mobile US, Inc.
AGrant or award
Common Stock
+19,117$0.00$0150,845Feb 19, 2025
Feb 15, 2025TMUS
T-Mobile US, Inc.
FTax withholding
Common Stock
-7,523$270.82$2.0M143,323Feb 19, 2025
Feb 18, 2025TMUS
T-Mobile US, Inc.
SOpen-market sale
Common Stock10b5-1
-2,500$270.00$675k140,823Feb 19, 2025

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Michael J. Katz: insider trades and track record | InsiderTell