T-MOBILE US INC

Ticker: TMUS CUSIP: 872590104 Class: COM

Great Diamond Partners, LLC's Holding History (CIK: 0001801112)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 1,997 Value ($000) $405 Avg Close $211.32 Range $194.01 - $239.76

Q3 2025

Shares 10,268 Value ($000) $2,458 Avg Close $240.31 Range $223.38 - $259.36

Q2 2025

Shares 10,016 Value ($000) $2,386 Avg Close $241.48 Range $218.15 - $269.31

Q1 2025

Shares 7,476 Value ($000) $1,994 Avg Close $243.03 Range $205.19 - $273.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	1,997	$405	$211.32	$194.01 - $239.76
Q3 2025	10,268	$2,458	$240.31	$223.38 - $259.36
Q2 2025	10,016	$2,386	$241.48	$218.15 - $269.31
Q1 2025	7,476	$1,994	$243.03	$205.19 - $273.15