DT MIDSTREAM INC

Ticker: DTM CUSIP: 23345M107 Class: COMMON STOCK

EASTERN BANK's Holding History (CIK: 0001126395)

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

Q4 2025

Shares 50 Value ($000) $6 Avg Close $114.29 Range $104.28 - $121.96

Q3 2025

Shares 50 Value ($000) $6 Avg Close $103.16 Range $96.65 - $113.33

Q2 2025

Shares 50 Value ($000) $5 Avg Close $99.18 Range $81.47 - $109.51

Q1 2025

Shares 50 Value ($000) $5 Avg Close $97.17 Range $82.90 - $111.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	50	$6	$114.29	$104.28 - $121.96
Q3 2025	50	$6	$103.16	$96.65 - $113.33
Q2 2025	50	$5	$99.18	$81.47 - $109.51
Q1 2025	50	$5	$97.17	$82.90 - $111.03