Summit Midstream Corp (SMC) investor He Zhengxu reports 8.1% stake

Rhea-AI Filing Summary

Summit Midstream Corp received an updated ownership report from investor He Zhengxu, who filed an amended Schedule 13G. He reports beneficial ownership of 1,511,500 shares of Summit Midstream common stock, representing 8.1% of the outstanding class as of the reported event date of 12/31/2025. He has sole power to vote and dispose of all these shares and no shared voting or dispositive power.

The filing states that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Summit Midstream Corp.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

Summit Midstream Corp

(Name of Issuer)

Common Stock

(Title of Class of Securities)

86614G101

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 86614G101

1

Names of Reporting Persons

He Zhengxu

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power
6	Shared Voting Power
7	Sole Dispositive Power
8	Shared Dispositive Power

9

Aggregate Amount Beneficially Owned by Each Reporting Person

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

12

Type of Reporting Person (See Instructions)

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Summit Midstream Corp
(b)	Address of issuer's principal executive offices: 910 LOUISIANA STREET, SUITE 4200, HOUSTON, TEXAS, 77002.
Item 2.
(a)	Name of person filing: He Zhengxu
(b)	Address or principal business office or, if none, residence: 5220 Belsera Ct., Reno, NV 89519
(c)	Citizenship: United States
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 86614G101
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1,511,500
(b)	Percent of class: 8.1%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1,511,500
	(ii) Shared power to vote or to direct the vote:
	(iii) Sole power to dispose or to direct the disposition of: 1,511,500
	(iv) Shared power to dispose or to direct the disposition of:
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

He Zhengxu

Signature:	He Zhengxu
Name/Title:	Individual
Date:	01/06/2026

FAQ

Who filed this Schedule 13G/A for Summit Midstream Corp (SMC)?

The filing was made by He Zhengxu, identified as an individual U.S. citizen with a principal address at 5220 Belsera Ct., Reno, NV 89519.

How many Summit Midstream Corp (SMC) shares does He Zhengxu beneficially own?

He Zhengxu reports beneficial ownership of 1,511,500 shares of Summit Midstream Corp common stock.

What percentage of Summit Midstream Corpa0(SMC) does He Zhengxu own?

The filing states that He Zhengxu's beneficial ownership represents 8.1% of the outstanding common stock of Summit Midstream Corp.

Does He Zhengxu have sole or shared voting power over his SMC shares?

The report shows sole power to vote or direct the vote for 1,511,500 shares and no shared voting power.

Does He Zhengxu control the disposition of his Summit Midstream Corp shares?

Yes. The filing states he has sole power to dispose of or direct the disposition of 1,511,500 shares, with no shared dispositive power.

What is the stated purpose of He Zhengxua0holding SMC shares?

The certification explains that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of Summit Midstream Corp.

What is the event date covered by this Summit Midstream Corp ownership filing?

The date of the event that triggered this ownership report is listed as 12/31/2025.