DT MIDSTREAM INC

Ticker: DTM CUSIP: 23345M107 Class: COMMON STOCK

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 146,733 Value ($000) $17,561 Avg Close $114.29 Range $104.28 - $121.96

Q3 2025

Shares 118,324 Value ($000) $13,378 Avg Close $103.16 Range $96.65 - $113.33

Q2 2025

Shares 109,417 Value ($000) $12,026 Avg Close $99.18 Range $81.47 - $109.51

Q3 2024

Shares 145,556 Value ($000) $11,449 Avg Close $71.25 Range $65.67 - $76.75

Q2 2024

Shares 44,731 Value ($000) $3,177 Avg Close $62.00 Range $57.09 - $68.50

Q4 2021

Shares 87,983 Value ($000) $4,221 Avg Close $39.86 Range $37.12 - $41.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	146,733	$17,561	$114.29	$104.28 - $121.96
Q3 2025	118,324	$13,378	$103.16	$96.65 - $113.33
Q2 2025	109,417	$12,026	$99.18	$81.47 - $109.51
Q3 2024	145,556	$11,449	$71.25	$65.67 - $76.75
Q2 2024	44,731	$3,177	$62.00	$57.09 - $68.50
Q4 2021	87,983	$4,221	$39.86	$37.12 - $41.95