MarketPeel
Insider Trading Intelligence
Pricing
…
GS

G. Michael Sievert

TMUS
PRESIDENT AND CEO · T-MOBILE US, INC. · CIK 0001182438
FILING MIX · LIFETIME24%/76%
BUYS
23
SELLS
72
TOTAL VALUE
$318.16M
COMPANIES
3
ACTIVE SINCE
Feb 2020
HOLDINGS NOW
140,832
AVG SELL PX
$126.12
TRADE KIND
SHOWING 95 / 95
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
48 backtested trades · 8 horizons · 26 pendingHow are these numbers computed? →
Forward-return performance of every backtestable P/S trade by G. Michael Sievert, 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
7d48+56.25%-0.40%+0.33%-0.73%-0.52%-2.32
14d48+43.75%+0.25%+0.60%-0.34%+0.05%-0.79
30d48+52.08%-0.65%+1.50%-2.15%-1.93%-2.76
60d48+58.33%-1.56%+2.23%-3.79%-1.97%-3.11
90d48+31.25%+3.17%+4.38%-0.49%-0.79%-0.31
180d48(3 pending)+42.22%+6.46%+7.83%-1.36%-0.41%-0.56
1y48(7 pending)+31.71%+17.46%+15.43%+2.03%-1.83%0.52
2y48(16 pending)+6.25%+37.12%+31.61%+5.51%+3.25%1.83
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 · 125,695.945 shares · as of Feb 24, 2026
0265,678531,356797,0341,062,712202120222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2020
2020
2020
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
2026
FLOW · 23 buys / 72 sellsCOVERAGE · 26 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
ALK
ALASKA AIR GROUP, INC.
PURCHASEGRANT
Stock grant
4,258$44.52$189.6K4,258Jun 1, 2026Jun 3, 2026 ↗View →
SBUX
STARBUCKS CORP
PURCHASEGRANT
Stock grant
3,667——10,878Mar 25, 2026Mar 27, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE
1,089$221.85$241.6K125,695.945Feb 24, 2026Feb 25, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE
13,911$220.07$3.06M126,784.945Feb 23, 2026Feb 25, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALE
80,000$214.94$17.20M140,695.945Feb 19, 2026Feb 23, 2026 ↗View →
TMUS
T-MOBILE US, INC.
SALEGRANT
Gift
65,500——220,695.945Dec 3, 2025Dec 4, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
22,500$214.25$4.82M286,195.945Nov 18, 2025Nov 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
22,500$216.97$4.88M308,695.945Nov 17, 2025Nov 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALEGRANT
Gift
43,318——331,195.945Nov 10, 2025Nov 12, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
135,915——427,996.499Nov 9, 2025Nov 12, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
53,482.554$207.00$11.07M374,513.945Nov 9, 2025Nov 12, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
44,140.077$207.00$9.14M292,081.499Nov 9, 2025Nov 12, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
22,500$257.17$5.79M336,221.576Aug 19, 2025Aug 20, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
22,500$255.58$5.75M358,721.576Aug 18, 2025Aug 20, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
22,500$240.99$5.42M381,221.576May 20, 2025May 21, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
22,500$244.40$5.50M403,721.576May 19, 2025May 21, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
50,222.799$268.54$13.49M426,221.576Apr 1, 2025Apr 3, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
127,631——476,444.375Apr 1, 2025Apr 3, 2025 ↗View →
SBUX
STARBUCKS CORP
PURCHASEGRANT
Stock grant
3,141——7,211Mar 12, 2025Mar 14, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
22,500$263.98$5.94M348,813.375Feb 26, 2025Feb 27, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
22,500$269.67$6.07M371,313.375Feb 25, 2025Feb 27, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
48,441——366,565Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
34,743.69$270.82$9.41M393,813.375Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
26,301.935$270.82$7.12M340,263.065Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
88,294——428,557.065Feb 15, 2025Feb 19, 2025 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
40,000$239.22$9.57M318,124Nov 14, 2024Nov 18, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$237.82$4.76M358,124Nov 12, 2024Nov 13, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$237.73$4.75M378,124Nov 11, 2024Nov 13, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$195.06$3.90M398,124Aug 13, 2024Aug 14, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$194.57$3.89M418,124Aug 12, 2024Aug 14, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$162.84$3.26M438,124May 14, 2024May 15, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$163.20$3.26M458,124May 13, 2024May 15, 2024 ↗View →
SBUX
STARBUCKS CORP
PURCHASEGRANT
Stock grant
3,383——4,070Mar 13, 2024Mar 15, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
7,521$163.34$1.23M448,515Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
19,212$163.34$3.14M478,124Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
48,821——497,336Mar 4, 2024Mar 6, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$163.78$3.28M456,036Feb 28, 2024Feb 29, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$163.71$3.27M476,036Feb 27, 2024Feb 29, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
17,896$161.57$2.89M536,036Feb 15, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
40,000$161.05$6.44M496,036Feb 15, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALEGRANT
Gift
95,000——0Feb 15, 2024Feb 20, 2024 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
64,093——553,932Feb 15, 2024Feb 20, 2024 ↗View →
SBUX
STARBUCKS CORP
PURCHASEGRANT
Stock grant
687——687Jan 16, 2024Jan 18, 2024 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
96,500$147.55$14.24M489,839Nov 17, 2023Nov 21, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$147.29$2.95M586,339Nov 13, 2023Nov 14, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE10b5-1
10b5-1 plan
20,000$146.90$2.94M606,339Nov 10, 2023Nov 14, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$138.05$2.76M626,339Aug 11, 2023Aug 14, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$138.34$2.77M646,339Aug 10, 2023Aug 14, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Gift
95,000——95,000May 30, 2023May 31, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALEGRANT
Gift
20,000——761,339May 30, 2023May 31, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALEGRANT
Gift
95,000——666,339May 30, 2023May 31, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$143.69$2.87M781,339May 12, 2023May 15, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$142.81$2.86M801,339May 11, 2023May 15, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
486,500——1,012,777Apr 1, 2023Apr 4, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
191,438$144.84$27.73M821,339Apr 1, 2023Apr 4, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
7,947——526,277Apr 1, 2023Apr 4, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
19,112——518,330Mar 4, 2023Mar 7, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$143.09$2.86M537,442Feb 28, 2023Mar 1, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$144.68$2.89M557,442Feb 27, 2023Mar 1, 2023 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
55,060——629,532Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
52,090——577,442Feb 15, 2023Feb 17, 2023 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$149.96$3.00M574,472Nov 11, 2022Nov 14, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$151.89$3.04M594,472Nov 10, 2022Nov 14, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$145.77$2.92M614,472Aug 11, 2022Aug 12, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$146.92$2.94M634,472Aug 10, 2022Aug 12, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$123.33$2.47M654,472May 12, 2022May 13, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$121.99$2.44M674,472May 11, 2022May 13, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
7,521$123.23$926.8K694,472Mar 4, 2022Mar 8, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$121.69$2.43M701,993Feb 28, 2022Mar 1, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$124.73$2.49M721,993Feb 25, 2022Mar 1, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,860$127.03$2.65M686,086Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
73,425——706,946Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
92,180——778,266Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
36,273$127.03$4.61M741,993Feb 15, 2022Feb 17, 2022 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$119.20$2.38M842,221Nov 11, 2021Nov 12, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$119.65$2.39M862,221Nov 10, 2021Nov 12, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$143.31$2.87M882,221Aug 11, 2021Aug 12, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$142.63$2.85M902,221Aug 10, 2021Aug 12, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$135.11$2.70M922,221May 11, 2021May 11, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$138.33$2.77M942,221May 10, 2021May 11, 2021 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
255,375——1,062,712Apr 29, 2021May 3, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
100,491$134.01$13.47M962,221Apr 29, 2021May 3, 2021 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
57,335——807,337Mar 4, 2021Mar 8, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$118.89$2.38M750,002Feb 26, 2021Feb 26, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
20,000$124.45$2.49M770,002Feb 25, 2021Feb 26, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
62,452$123.68$7.72M790,002Feb 15, 2021Feb 17, 2021 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
86,987——852,454Feb 15, 2021Feb 17, 2021 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
466,767$0.17$80.9K0Jun 30, 2020Jul 2, 2020 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
150,000$0.20$30.0K466,767Jun 30, 2020Jul 2, 2020 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President and CEO
92,858$86.20$8.00M769,105May 1, 2020May 5, 2020 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
235,978——861,963May 1, 2020May 5, 2020 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
61,372——657,730Feb 25, 2020Feb 27, 2020 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President & COO
31,745$94.58$3.00M625,985Feb 25, 2020Feb 27, 2020 ↗View →
TMUS
T-MOBILE US, INC.
PURCHASEGRANT
Stock grant
82,843——596,358Feb 15, 2020Feb 19, 2020 ↗View →
TMUS
T-MOBILE US, INC.
SALE
President & COO
15,800$96.48$1.52M513,515Feb 15, 2020Feb 19, 2020 ↗View →
Other insiders · TMUS
Loading peer insiders…
About this filer
CIK 0001182438
ROLE
President and CEO
PRIMARY
TMUS
COMPANIES
3
ACTIVE SINCE
Feb 2020
MARKETPEEL · /INSIDER/0001182438DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
FREE · DAILY · 6 AM ET

The morning brief, before the bell.

One short email. Insider buys, congressional trades, and plain-English analysis.

Feedback