Comparable stake leader
Connect Midstream, LLC
SEC ownership of Summit Midstream Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0002024218.
Disclosed value leader
Connect Midstream, LLC
Comparable rows
50/50
Latest evidence
19 May 2026
- Public ticker
- SMC on NYSE
- Parsed ownership sources
- 13D/G, 3/4/5, and 13F
- Largest SEC-reported holder
- Connect Midstream, LLC
- Latest 13D/G holder
- Connect Midstream, LLC
- Latest parsed ownership date
- 19 May 2026
- Issuer CIK
- 0002024218
- Issuer location
- Houston, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
2 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Summit Midstream Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Connect Midstream, LLC
Disclosed value leader
Connect Midstream, LLC
Comparable rows
50/50
Latest evidence
19 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 39%
13D/G row: Connect Midstream, LLC
Showing 1-8 of 50 holder rows.
Quick read
Connect Midstream, LLC leads the comparable SEC ownership view at 39%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Connect Midstream, LLC's linked filing trail.
Comparable ownership
Top 5
Connect Midstream, LLC
39%
He Zhengxu
8.1%
Invesco Ltd.
7.8%
BlackRock, Inc.
4.9%
Tall Oak Midstream Investments, LLC
3.9%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Connect Midstream, LLC |
13D/G
3/4/5
10%+ Owner
|
39%
|
$238,672,854
7,891,864 shares
|
+$36,924,101 | 31 Mar 2026 |
| He Zhengxu |
13D/G
|
8.1%
|
$40,320,925
1,511,500 shares
|
+$15,352,096 | 31 Dec 2025 |
| Invesco Ltd. |
13F
13D/G
Company
|
7.8%
from 13D/G
|
$29,314,624
969,399 shares
|
— | 31 Mar 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
4.9%
from 13D/G
|
$19,637,585
649,391 shares
|
— | 31 Mar 2026 |
| Tall Oak Midstream Investments, LLC |
13D/G
|
3.9%
|
$14,046,743
473,273 shares
|
$0 | 02 Jun 2025 |
| Edward Herring |
3/4/5
Director, 10%+ Owner
|
11%
|
$42,498,698
1,367,397 shares
|
+$37,946,131 | 31 Mar 2026 |
| Jason H. Downie |
3/4/5
Director, 10%+ Owner
|
11%
|
$42,498,698
1,367,397 shares
|
+$37,946,131 | 31 Mar 2026 |
| Tailwater Capital LLC |
3/4/5
10%+ Owner
|
11%
|
$42,498,698
1,367,397 shares
|
+$37,946,131 | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$192,420,831.
Buys
$192,740,831
Insiders: 5
Sells
$320,000
Insiders: 1
Net
+$192,420,831
Shares: +6,241,069
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 6,251,069
Shares: 10,000
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 6,104,590 | 10,000 | $189,730,657 | $320,000 | +$189,410,657 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 146,479 | 0 | $3,010,174 | $0 | +$3,010,174 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-19 of 19 reporting-owner rows connected to Summit Midstream Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
19
Largest Forms 3/4/5 holder
Tailwater Capital LLC
Net 12M change
+$192,420,829
Latest report
19 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Tailwater Capital LLC | 10%+ Owner | $42,498,698 | +$37,946,131 | +834% | Filing P/S | 31 Mar 2026 |
| Connect Midstream, LLC | 10%+ Owner | $42,498,698 | +$40,956,305 | +2655% | Filing P/S | 31 Mar 2026 |
| Edward Herring | Director, 10%+ Owner | $42,498,698 | +$37,946,131 | +834% | Filing P/S | 31 Mar 2026 |
| Jason H. Downie | Director, 10%+ Owner | $42,498,698 | +$37,946,131 | +834% | Filing P/S | 31 Mar 2026 |
| Tailwater Energy Fund III LP | 10%+ Owner | $42,498,698 | +$37,946,131 | +834% | Filing P/S | 31 Mar 2026 |
| J. Heath Deneke | Chairman, President and CEO | $21,962,758 | Mixed | 13 Mar 2026 | ||
| William J. Mault | Executive VP and CFO | $6,050,541 | Mixed | 13 Mar 2026 | ||
| James David Johnston | Executive VP, GC, CCO and Secy | $5,977,179 | Mixed | 13 Mar 2026 | ||
| Matthew B. Sicinski | Senior VP and CAO | $2,337,113 | Mixed | 13 Mar 2026 | ||
| Marguerite Woung-Chapman | Director | $1,246,664 | Mixed | 14 Mar 2025 | ||
| James Lee Jacobe | Director | $1,236,263 | Mixed | 16 Mar 2026 | ||
| James J. Cleary | Director | $1,001,328 | Mixed | 16 Mar 2026 | ||
| Robert J. McNally | Director | $1,001,328 | Mixed | 16 Mar 2026 | ||
| Rommel M. Oates | Director | $840,714 | Mixed | 14 Mar 2025 | ||
| Rommel M. Oates | Director | $708,160 | Mixed | 16 Mar 2026 | ||
| Jerry L. Peters | Director | $543,328 | -$320,000 | -37% | Filing P/S | 19 May 2026 |
| Carolyn J. Stone | Director | $101,014 | Mixed | 16 Mar 2026 | ||
| Stephen M. Lipscomb | Director | Mixed | 02 Dec 2024 | |||
| Andrew A. Winston | Director | Mixed | 02 Dec 2024 |
Recent insider transactions for Summit Midstream Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Jerry L. Peters | SMC | Common Stock | Sale | -37.1% | $320,000 | $32.00 | -10,000 | 16,979 | 19 May 2026 | By Joint Spousal Trust |
| Jerry L. Peters | SMC | Common Stock | Gift | 16.1% | 3,733 | 26,979 | 20 Apr 2026 | By Joint Spousal Trust | ||
| Jerry L. Peters | SMC | Common Stock | Gift | -100% | -3,733 | 0 | 20 Apr 2026 | Direct | ||
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 per share | Purchase | 833.5% | $37,946,131 | $31.08 | 1,220,918 | 1,367,397 | 31 Mar 2026 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 per share | Purchase | 833.5% | $37,946,131 | $31.08 | 1,220,918 | 1,367,397 | 31 Mar 2026 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 per share | Purchase | 833.5% | $37,946,131 | $31.08 | 1,220,918 | 1,367,397 | 31 Mar 2026 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 per share | Purchase | 833.5% | $37,946,131 | $31.08 | 1,220,918 | 1,367,397 | 31 Mar 2026 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 per share | Purchase | 833.5% | $37,946,131 | $31.08 | 1,220,918 | 1,367,397 | 31 Mar 2026 | Direct |
| Jerry L. Peters | SMC | Common Stock | Award | 3,733 | 3,733 | 16 Mar 2026 | Direct | |||
| Rommel M. Oates | SMC | Common Stock | Award | 16.6% | 3,733 | 26,170 | 16 Mar 2026 | Direct | ||
| Carolyn J. Stone | SMC | Common Stock | Award | 3,733 | 3,733 | 16 Mar 2026 | Direct | |||
| James Lee Jacobe | SMC | Common Stock | Award | 8.9% | 3,733 | 45,686 | 16 Mar 2026 | Direct | ||
| Robert J. McNally | SMC | Common Stock | Award | 11.2% | 3,733 | 37,004 | 16 Mar 2026 | Direct | ||
| James J. Cleary | SMC | Common Stock | Award | 11.2% | 3,733 | 37,004 | 16 Mar 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Corporation Restricted Stock Units | Award | 62.1% | 11,384 | 29,712 | 16 Mar 2026 | Direct | ||
| William J. Mault | SMC | Corporation Restricted Stock Units | Award | 66.5% | 36,142 | 90,467 | 16 Mar 2026 | Direct | ||
| James David Johnston | SMC | Corporation Restricted Stock Units | Award | 63.1% | 35,088 | 90,734 | 16 Mar 2026 | Direct | ||
| J. Heath Deneke | SMC | Corporation Restricted Stock Units | Award | 67.3% | 119,614 | 297,251 | 16 Mar 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Common Stock | Tax liability | -6.9% | -2,666 | 35,961 | 13 Mar 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Common Stock | Options Exercise | 36.8% | 10,824 | 40,278 | 13 Mar 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Corporation Restricted Stock Units | Options Exercise | -36.9% | -10,824 | 18,538 | 13 Mar 2026 | Direct | ||
| William J. Mault | SMC | Common Stock | Tax liability | -12.7% | -11,751 | 80,608 | 13 Mar 2026 | Direct | ||
| William J. Mault | SMC | Common Stock | Options Exercise | 48% | 29,857 | 92,056 | 13 Mar 2026 | Direct | ||
| William J. Mault | SMC | Corporation Restricted Stock Units | Options Exercise | -35.2% | -29,857 | 54,889 | 13 Mar 2026 | Direct | ||
| James David Johnston | SMC | Common Stock | Tax liability | -16% | -13,153 | 69,196 | 13 Mar 2026 | Direct | ||
| James David Johnston | SMC | Common Stock | Options Exercise | 69.1% | 33,423 | 81,811 | 13 Mar 2026 | Direct | ||
| James David Johnston | SMC | Corporation Restricted Stock Units | Options Exercise | -37.2% | -33,423 | 56,294 | 13 Mar 2026 | Direct | ||
| J. Heath Deneke | SMC | Common Stock | Tax liability | -11% | -40,297 | 326,518 | 13 Mar 2026 | Direct | ||
| J. Heath Deneke | SMC | Common Stock | Options Exercise | 39.6% | 103,939 | 366,161 | 13 Mar 2026 | Direct | ||
| J. Heath Deneke | SMC | Corporation Restricted Stock Units | Options Exercise | -36.7% | -103,939 | 179,617 | 13 Mar 2026 | Direct | ||
| William J. Mault | SMC | Common Stock | Tax liability | -3.76% | -2,757 | 70,588 | 16 Jan 2026 | Direct | ||
| William J. Mault | SMC | Common Stock | Options Exercise | 16% | 10,121 | 73,345 | 16 Jan 2026 | Direct | ||
| William J. Mault | SMC | Corporation Restricted Stock Units | Options Exercise | -10.7% | -10,121 | 84,746 | 16 Jan 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Common Stock | Tax liability | -3.29% | -1,066 | 31,347 | 16 Jan 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Common Stock | Options Exercise | 12.5% | 3,593 | 32,413 | 16 Jan 2026 | Direct | ||
| Matthew B. Sicinski | SMC | Corporation Restricted Stock Units | Options Exercise | -10.9% | -3,593 | 29,362 | 16 Jan 2026 | Direct | ||
| James David Johnston | SMC | Common Stock | Tax liability | -4.82% | -2,923 | 57,687 | 16 Jan 2026 | Direct | ||
| James David Johnston | SMC | Common Stock | Options Exercise | 21.7% | 10,794 | 60,610 | 16 Jan 2026 | Direct | ||
| James David Johnston | SMC | Corporation Restricted Stock Units | Options Exercise | -10.7% | -10,794 | 89,717 | 16 Jan 2026 | Direct | ||
| J. Heath Deneke | SMC | Common Stock | Tax liability | -2.75% | -8,216 | 290,708 | 16 Jan 2026 | Direct | ||
| J. Heath Deneke | SMC | Common Stock | Options Exercise | 12.3% | 32,754 | 298,924 | 16 Jan 2026 | Direct | ||
| J. Heath Deneke | SMC | Corporation Restricted Stock Units | Options Exercise | -10.4% | -32,754 | 283,556 | 16 Jan 2026 | Direct | ||
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 | Purchase | 21.9% | $549,804 | $20.89 | 26,319 | 146,479 | 28 Aug 2025 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 | Purchase | 65.2% | $971,720 | $20.50 | 47,401 | 120,160 | 27 Aug 2025 | Direct |
| Connect Midstream, LLC | SMC | Common Stock, par value $0.01 | Purchase | $1,488,649 | $20.46 | 72,759 | 72,759 | 26 Aug 2025 | Direct |
* marks a reported price that did not pass the local price check.