Summit Midstream (SMC) EVP nets shares from RSU vesting

Rhea-AI Filing Summary

Summit Midstream Corp executive James David Johnston reported equity award activity. On January 16, 2026, 10,794 corporation restricted stock units vested and were converted into an equal number of common shares at an exercise price of $0. Of these, 2,923 common shares were withheld at $26.81 per share to cover tax obligations, leaving Johnston with 57,687 common shares held directly after the transactions.

Each corporation restricted stock unit equals one share of common stock, and the vested units were part of an award where one-third vested on January 16, 2026, with the remaining units scheduled to vest on the third anniversary of the January 18, 2024 reference date, subject to continued employment. After this vesting event, Johnston also held 89,717 corporation restricted stock units, which include other tranches with different vesting dates and are settled in stock or cash at the issuer’s discretion.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Johnston James David

(Last) (First) (Middle)

C/O SUMMIT MIDSTREAM CORPORATION

910 LOUISIANA STREET, SUITE 4200

(Street)

HOUSTON TX 77002

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Summit Midstream Corp [ SMC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive VP, GC, CCO and Secy

3. Date of Earliest Transaction (Month/Day/Year)
01/16/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/16/2026		M		10,794	A	(1)	60,610	D
Common Stock	01/16/2026		F		2,923(2)	D	$26.81	57,687	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Corporation Restricted Stock Units	(1)	01/16/2026		M			10,794	(3)	(4)	Common Stock	10,794	$0	89,717(5)	D

Explanation of Responses:

1. Each corporation restricted stock unit is the economic equivalent of one common stock.

2. Common stocks being withheld to pay tax liability.

3. 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.

4. 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.

5. This total includes corporation restricted stock units from other tranches with different vesting dates.

Remarks:

	/s/ James David Johnston	01/21/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Summit Midstream (SMC) report for James David Johnston?

Summit Midstream reported that Executive VP, GC, CCO and Secretary James David Johnston had 10,794 corporation restricted stock units vest and convert into common stock on January 16, 2026, with a portion of the resulting shares withheld to cover taxes.

How many Summit Midstream (SMC) shares vested and how many were withheld for taxes?

On January 16, 2026, 10,794 restricted stock units vested into the same number of common shares. Of those, 2,923 common shares were withheld at $26.81 per share to pay tax liabilities.

How many Summit Midstream (SMC) common shares does James David Johnston own after the Form 4 transactions?

Following the reported transactions, James David Johnston beneficially owned 57,687 shares of Summit Midstream common stock, held directly.

How many restricted stock units in Summit Midstream (SMC) does Johnston still hold after this vesting?

After the January 16, 2026 vesting event, Johnston held 89,717 corporation restricted stock units, which include units from other tranches with different vesting dates.

What is the vesting schedule for Johnston’s Summit Midstream (SMC) restricted stock units?

According to the disclosure, one-third of the restricted stock units under the original award vested on January 16, 2026. The remaining units are scheduled to vest on the third anniversary of the January 18, 2024 reference date, subject to Johnston’s continued employment.

How are Summit Midstream (SMC) restricted stock units and DERs settled for James David Johnston?

Each corporation restricted stock unit is the economic equivalent of one common share and is settled upon vesting in common stock or cash on a one-for-one basis at the issuer’s discretion. Johnston also receives distribution equivalent rights (DERs), which pay a lump sum of cash on the vesting date equal to accrued distributions from the grant date.