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Insider Trading Intelligence
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MK

Michael J. Katz

TMUS
PRESIDENT, BUSINESS GROUP · T-MOBILE US, INC. · CIK 0001867492
FILING MIX · LIFETIME28%/72%
BUYS
11
SELLS
29
TOTAL VALUE
$23.37M
COMPANIES
1
ACTIVE SINCE
Feb 2022
HOLDINGS NOW
181,930
AVG SELL PX
$177.28
TRADE KIND
SHOWING 40 / 40
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
14 backtested trades · 8 horizons · 11 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by Michael J. Katz, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d14+42.86%-0.22%+0.37%-0.59%-0.76%—
14d14+57.14%-0.62%+0.09%-0.71%-0.27%—
30d14+50.00%-0.88%+0.07%-0.68%+0.07%—
60d14+57.14%+0.60%+1.27%-0.68%+0.74%—
90d14(1 pending)+30.77%+2.82%+3.85%-1.02%-2.14%—
180d14(1 pending)+46.15%+6.18%+9.23%-3.05%-5.45%—
1y14(3 pending)+27.27%+24.28%+20.58%+3.70%-5.13%—
2y14(6 pending)+12.50%+44.72%+41.35%+3.37%+0.89%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
TMUS · 181,930.481 shares · as of May 1, 2026
047,62595,251142,876190,5022023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 11 buys / 29 sellsCOVERAGE · 18 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
TMUS
T-MOBILE US, INC.
SALE
Chief Bus. and Prod. Officer
5,000$195.81$979.0K181,930.481May 1, 2026May 4, 2026 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
9,076——190,501.888Feb 15, 2026Feb 18, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Chief Bus. and Prod. Officer
7,141.633$219.50$1.57M181,425.888Feb 15, 2026Feb 18, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Chief Bus. and Prod. Officer
3,571.407$219.50$783.9K186,930.481Feb 15, 2026Feb 18, 2026 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
32,365——188,567.521Feb 15, 2026Feb 18, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
2,500$215.91$539.8K156,202.521Nov 17, 2025Nov 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
2,500$251.12$627.8K158,702.521Aug 15, 2025Aug 18, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
2,500$237.12$592.8K161,202.521May 15, 2025May 16, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
22,880——163,702.521Apr 1, 2025Apr 3, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
2,500$270.00$675.0K140,822.521Feb 18, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
19,117——150,845.061Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
7,522.54$270.82$2.04M143,322.521Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
18,801——138,488Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
6,759.939$270.82$1.83M131,728.061Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
3,000$205.30$615.9K119,687Oct 1, 2024Oct 2, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
3,000$177.59$532.8K122,687Jul 1, 2024Jul 2, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
3,000$163.22$489.7K125,687Apr 1, 2024Apr 2, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
2,288$163.99$375.2K128,687Mar 5, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
1,485$163.34$242.6K125,131Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
9,637——134,768Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Pres, Mkting Stgy & Prods
3,793$163.34$619.5K130,975Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
6,655$161.23$1.07M126,616Feb 16, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
4,320$161.57$698.0K133,271Feb 15, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
18,614——137,591Feb 15, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
3,500$148.95$521.3K118,977Nov 24, 2023Nov 28, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
3,500$140.01$490.0K122,477Sep 11, 2023Sep 13, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
3,500$140.93$493.3K125,977May 23, 2023May 23, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
1,485$141.90$210.7K129,477Mar 4, 2023Mar 7, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
3,500$145.91$510.7K130,962Feb 23, 2023Feb 24, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
3,717$147.55$548.4K119,389Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, MIX
9,781$147.55$1.44M134,462Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
17,029——123,106Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
24,854——144,243Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Chief Marketing Officer
22,000$145.06$3.19M106,077Aug 10, 2022Aug 12, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
Chief Marketing Officer
1,485$123.23$183.0K128,077Mar 4, 2022Mar 8, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, Business Group
1,917$125.46$240.5K129,562Feb 25, 2022Mar 1, 2022 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
15,897——124,876Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, Business Group
3,423$127.03$434.8K121,453Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President, Business Group
6,506$127.03$826.5K131,479Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
16,532——137,985Feb 15, 2022Feb 17, 2022 ↗View →
Other insiders · TMUS
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About this filer
CIK 0001867492
ROLE
President, Business Group
PRIMARY
TMUS
COMPANIES
1
ACTIVE SINCE
Feb 2022
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