DT MIDSTREAM INC

Ticker: DTM CUSIP: 23345M107 Class: COMMON STOCK

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q4 2025

Shares 3,751 Value ($000) $449 Avg Close $114.29 Range $104.28 - $121.96

Q3 2025

Shares 3,607 Value ($000) $408 Avg Close $103.16 Range $96.65 - $113.33

Q2 2025

Shares 3,661 Value ($000) $402 Avg Close $99.18 Range $81.47 - $109.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,751	$449	$114.29	$104.28 - $121.96
Q3 2025	3,607	$408	$103.16	$96.65 - $113.33
Q2 2025	3,661	$402	$99.18	$81.47 - $109.51