Through the 90-day period concluding February 10, 2026, Summit Midstream's top three insider stakeholders include Chairman And President And Ceo J Heath Deneke (290.71K shares), TenPercentOwner Midstream, Llc Connect (146.48K shares), Executive Vp And Cfo William J. Mault (70.59K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| J Heath Deneke | Chairman And President And Ceo | 290,708 | 21 Jan, 2026 |
| Midstream, Llc Connect | 146,479 | 02 Sep, 2025 | |
| William J. Mault | Executive Vp And Cfo | 70,588 | 21 Jan, 2026 |
| James David Johnston | Executive Vp And Gc And Cco And Secy | 57,687 | 21 Jan, 2026 |
| James Lee Jacobe | 41,953 | 18 Mar, 2025 | |
| Marguerite Woung-Chapman | 33,271 | 18 Mar, 2025 | |
| Robert Joseph Mcnally | 33,271 | 18 Mar, 2025 | |
| James J Cleary | 33,271 | 18 Mar, 2025 | |
| Matthew B. Sicinski | Senior Vp And Cao | 31,347 | 21 Jan, 2026 |
| Rommel M. Oates | 22,437 | 18 Mar, 2025 | |
| Jerry L Peters | 20,184 | 28 Apr, 2025 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 16 Jan, 2026 | J Heath Deneke | Common Stock | A | 32,754 | - | 298,924 | D | M |
| 16 Jan, 2026 | J Heath Deneke | Common Stock | D | 8,216 | $26.81 | 290,708 | D | F |
| 16 Jan, 2026 | James David Johnston | Common Stock | A | 10,794 | - | 60,610 | D | M |
| 16 Jan, 2026 | James David Johnston | Common Stock | D | 2,923 | $26.81 | 57,687 | D | F |
| 16 Jan, 2026 | Matthew B. Sicinski | Common Stock | D | 1,066 | $26.81 | 31,347 | D | F |
| 16 Jan, 2026 | Matthew B. Sicinski | Common Stock | A | 3,593 | - | 32,413 | D | M |
| 16 Jan, 2026 | William J. Mault | Common Stock | D | 2,757 | $26.81 | 70,588 | D | F |
| 16 Jan, 2026 | William J. Mault | Common Stock | A | 10,121 | - | 73,345 | D | M |
| 28 Aug, 2025 | Midstream, Llc Connect | Common Stock, par value $0.01 | A | 26,319 | $20.89 | 146,479 | D | P |
| 27 Aug, 2025 | Midstream, Llc Connect | - | - | 120,160 | D | |||
| 27 Aug, 2025 | Midstream, Llc Connect | Common Stock, par value $0.01 | A | 47,401 | $20.50 | 120,160 | D | P |
| 26 Aug, 2025 | Midstream, Llc Connect | - | - | 72,759 | D | |||
| 26 Aug, 2025 | Midstream, Llc Connect | Common Stock, par value $0.01 | A | 72,759 | $20.46 | 72,759 | D | P |
| 24 Apr, 2025 | Jerry L Peters | - | - | 0 | D | |||
| 24 Apr, 2025 | Jerry L Peters | Common Stock | D | 3,062 | $0.00 | 0 | D | G |
| 28 Mar, 2025 | J Heath Deneke | Common Stock | D | 950 | $34.63 | 266,220 | D | S |
| 28 Mar, 2025 | J Heath Deneke | Common Stock | D | 50 | $35.45 | 266,170 | D | S |
| 27 Mar, 2025 | J Heath Deneke | Common Stock | D | 1,000 | $35.33 | 267,170 | D | S |
| 26 Mar, 2025 | J Heath Deneke | Common Stock | D | 1,000 | $35.33 | 268,170 | D | S |
| 25 Mar, 2025 | J Heath Deneke | Common Stock | D | 1,000 | $35.74 | 269,170 | D | S |