Summit Midstream's top three insider shareholders as of April 22, 2026 are Midstream, Llc Connect (TenPercentOwner, 1.37Mn shares), J Heath Deneke (Chairman, President And Ceo, 354.35K shares), Midstream, Llc Connect (TenPercentOwner, 146.48K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Midstream, Llc Connect | - | 1,367,397 | 0 | 13 Apr, 2026 |
| J Heath Deneke | Chairman, President And Ceo | 354,350 | 0 | 17 Mar, 2026 |
| Midstream, Llc Connect | - | 146,479 | 0 | 02 Sep, 2025 |
| William J. Mault | Executive Vp And Cfo | 88,694 | 0 | 17 Mar, 2026 |
| James David Johnston | Executive Vp, Gc, Cco And Secy | 77,957 | 0 | 17 Mar, 2026 |
| James Lee Jacobe | - | 45,686 | 0 | 18 Mar, 2026 |
| Matthew B. Sicinski | Senior Vp And Cao | 39,505 | 0 | 17 Mar, 2026 |
| James J Cleary | - | 37,004 | 0 | 18 Mar, 2026 |
| Robert Joseph Mcnally | - | 37,004 | 0 | 18 Mar, 2026 |
| Marguerite Woung-Chapman | - | 33,271 | 0 | 18 Mar, 2025 |
| Marguerite Woung-Chapman | - | 33,271 | 0 | 18 Mar, 2025 |
| Rommel Oates | - | 26,170 | 0 | 18 Mar, 2026 |
| Rommel M. Oates | - | 22,437 | 0 | 18 Mar, 2025 |
| Jerry L Peters | - | 0 | 20,184 | 28 Apr, 2025 |
| Carolyn J Stone | - | 3,733 | 0 | 18 Mar, 2026 |
| Jerry L Peters | - | 3,733 | 0 | 18 Mar, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 31 Mar, 2026 | Midstream, Llc Connect | Common Stock, par value $0.01 per share | A | 1,220,918 | $31.08 | 1,367,397 | D | P |
| 16 Mar, 2026 | James J Cleary | Common Stock | A | 3,733 | $0.00 | 37,004 | D | A |
| 16 Mar, 2026 | Carolyn J Stone | Common Stock | A | 3,733 | $0.00 | 3,733 | D | A |
| 16 Mar, 2026 | Rommel Oates | Common Stock | A | 3,733 | $0.00 | 26,170 | D | A |
| 16 Mar, 2026 | Robert Joseph Mcnally | Common Stock | A | 3,733 | $0.00 | 37,004 | D | A |
| 16 Mar, 2026 | James Lee Jacobe | Common Stock | A | 3,733 | $0.00 | 45,686 | D | A |
| 16 Mar, 2026 | Jerry L Peters | Common Stock | A | 3,733 | $0.00 | 3,733 | D | A |
| 13 Mar, 2026 | William J. Mault | Common Stock | A | 16,522 | - | 87,110 | D | M |
| 13 Mar, 2026 | J Heath Deneke | Common Stock | A | 58,049 | - | 348,757 | D | M |
| 13 Mar, 2026 | Matthew B. Sicinski | Common Stock | A | 6,139 | - | 37,486 | D | M |
| 13 Mar, 2026 | James David Johnston | Common Stock | A | 18,977 | - | 76,664 | D | M |
| 13 Mar, 2026 | J Heath Deneke | Common Stock | D | 22,239 | $30.29 | 326,518 | D | F |
| 13 Mar, 2026 | Matthew B. Sicinski | Common Stock | D | 1,525 | $30.29 | 35,961 | D | F |
| 13 Mar, 2026 | William J. Mault | Common Stock | D | 6,502 | $30.29 | 80,608 | D | F |
| 13 Mar, 2026 | James David Johnston | Common Stock | D | 7,468 | $30.29 | 69,196 | D | F |
| 13 Mar, 2026 | William J. Mault | Common Stock | A | 4,793 | - | 85,401 | D | M |
| 13 Mar, 2026 | J Heath Deneke | Common Stock | A | 15,875 | - | 342,393 | D | M |
| 13 Mar, 2026 | Matthew B. Sicinski | Common Stock | A | 1,511 | - | 37,472 | D | M |
| 13 Mar, 2026 | James David Johnston | Common Stock | A | 4,653 | - | 73,849 | D | M |
| 13 Mar, 2026 | J Heath Deneke | Common Stock | D | 6,247 | $30.29 | 336,146 | D | F |