SUMMIT MIDSTREAM CORPORATION

Ticker: SMC CUSIP: 86614G101 Class: Common Stock

Nuveen, LLC's Holding History (CIK: 0001871926)

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

Q4 2025

Shares 21,498 Value ($000) $574 Avg Close $23.78 Range $19.83 - $27.95

Q3 2025

Shares 20,842 Value ($000) $428 Avg Close $23.23 Range $19.13 - $26.88

Q2 2025

Shares 13,253 Value ($000) $325 Avg Close $27.47 Range $24.39 - $37.45

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	21,498	$574	$23.78	$19.83 - $27.95
Q3 2025	20,842	$428	$23.23	$19.13 - $26.88
Q2 2025	13,253	$325	$27.47	$24.39 - $37.45