William J. Mault - 16 Jan 2026 Form 4 Insider Report for Summit Midstream Corp (SMC)

Role
Executive VP and CFO
Signature
/s/ James D. Johnston, Attorney-in-Fact for William J. Mault
Issuer symbol
SMC
Transactions as of
16 Jan 2026
Net transactions value
-$73,915
Form type
4
Filing time
21 Jan 2026, 18:56:26 UTC
Previous filing
18 Mar 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Mault William J. Executive VP and CFO C/O SUMMIT MIDSTREAM PARTNERS, LP, 910 LOUISIANA STREET, SUITE 4200, HOUSTON /s/ James D. Johnston, Attorney-in-Fact for William J. Mault 21 Jan 2026 0001911803

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction SMC Common Stock Options Exercise +10,121 +16% 73,345 16 Jan 2026 Direct F1
transaction SMC Common Stock Tax liability $73,915 -2,757 -3.8% $26.81 70,588 16 Jan 2026 Direct F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction SMC Corporation Restricted Stock Units Options Exercise $0 -10,121 -11% $0.000000 84,746 16 Jan 2026 Common Stock 10,121 Direct F1, F3, F4, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each corporation restricted stock unit is the economic equivalent of one common stock.
F2 Common stocks being withheld to pay tax liability.
F3 One-third of the corporation restricted stock units subject to the original award agreement vested on January 16, 2026, with the remaining corporation restricted stock units subject to vesting on the third anniversary of the January 18, 2024 reference date, subject to continued employment. The Reporting Person received distribution equivalent rights ("DERs") for each corporation restricted stock unit, providing for payment on the vesting date of a lump sum of cash equal to the accrued distributions from and after the grant date of the corporation restricted stock units.
F4 The corporation restricted stock units and associated DERs do not expire. The corporation restricted stock units are settled upon vesting in common stocks (on a one-for-one basis) or in cash, at the discretion of the Issuer.
F5 This total includes corporation restricted stock units from other tranches with different vesting dates.