DT MIDSTREAM INC

Ticker: DTM CUSIP: 23345M107 Class: COMMON STOCK

Polymer Capital Management (US) LLC's Holding History (CIK: 0001973324)

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

Q4 2025

Shares 2,963 Value ($000) $355 Avg Close $114.29 Range $104.28 - $121.96

Q3 2025

Shares 5,831 Value ($000) $659 Avg Close $103.16 Range $96.65 - $113.33

Q1 2025

Shares 8,171 Value ($000) $788 Avg Close $97.17 Range $82.90 - $111.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,963	$355	$114.29	$104.28 - $121.96
Q3 2025	5,831	$659	$103.16	$96.65 - $113.33
Q1 2025	8,171	$788	$97.17	$82.90 - $111.03