17 insiders reported 183 Form 4 transactions for Summit Midstream Corp (SMC) over the past 18 months (most recent 2026-07-06). Recent activity: Johnston James David (Executive VP, GC, CCO and Secy) Sell 2,600 shares, PETERS JERRY L (Director) Sell 10,000 shares, PETERS JERRY L (Director) Sell 3,733 shares, PETERS JERRY L (Director) Buy 3,733 shares, Downie Jason H (Director) Buy 1.2M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-06 | Johnston James David | Executive VP, GC, CCO and Secy | Sell | 2,600 | $77,272 |
| 2026-05-21 | PETERS JERRY L | Director | Sell | 10,000 | $320,000 |
| 2026-04-21 | PETERS JERRY L | Director | Sell | 3,733 | $0 |
| 2026-04-21 | PETERS JERRY L | Director | Buy | 3,733 | $0 |
| 2026-04-13 | Downie Jason H | Director | Buy | 1.2M | $37.9M |
| 2026-04-13 | Herring Edward | Director | Buy | 1.2M | $37.9M |
| 2026-04-13 | Tailwater Capital LLC | Insider | Buy | 1.2M | $37.9M |
| 2026-04-13 | Tailwater Energy Fund III LP | Insider | Buy | 1.2M | $37.9M |
| 2026-04-13 | Connect Midstream, LLC | Insider | Buy | 1.2M | $37.9M |
| 2026-03-18 | McNally Robert Joseph | Director | Buy | 3,733 | $0 |
| 2026-03-18 | Stone Carolyn J | Director | Buy | 3,733 | $0 |
| 2026-03-18 | Jacobe James Lee | Director | Buy | 3,733 | $0 |
| 2026-03-18 | Oates Rommel | Director | Buy | 3,733 | $0 |
| 2026-03-18 | PETERS JERRY L | Director | Buy | 3,733 | $0 |
| 2026-03-18 | CLEARY JAMES J | Director | Buy | 3,733 | $0 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Buy | 18,977 | $0 |
| 2026-03-17 | Sicinski Matthew B. | Senior VP and CAO | Sell | 368 | $11,147 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Buy | 4,653 | $0 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Sell | 1,831 | $55,461 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Buy | 9,793 | $0 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Sell | 3,854 | $116,738 |
| 2026-03-17 | Sicinski Matthew B. | Senior VP and CAO | Buy | 6,139 | $0 |
| 2026-03-17 | Sicinski Matthew B. | Senior VP and CAO | Sell | 1,525 | $46,192 |
| 2026-03-17 | Sicinski Matthew B. | Senior VP and CAO | Buy | 1,511 | $0 |
| 2026-03-17 | Johnston James David | Executive VP, GC, CCO and Secy | Sell | 7,468 | $226,206 |
Source: SEC Form 4 filings · as of 2026-07-06