As of the latest Form 4 filed Apr 21, 2026.
What Summit Midstream Corporation insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 11 most recent filings for SMC.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-04-21 | 2026-04-20 | PETERS JERRY L Director | GGift | +3.73K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-21 | 2026-04-20 | PETERS JERRY L, Director | GGift | −3.73K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-13 | 2026-03-31 | Connect Midstream, LLC Director | PPurchase | +1.22M | $31.08 | $37.9M | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Mault William J. Executive VP and CFO | FTax | −2.76K | $26.81 | $73.9K | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Mault William J., Executive VP and CFO | MExercise | +10.1K | — | — | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Sicinski Matthew B. Senior VP and CAO | FTax | −1.07K | $26.81 | $28.6K | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Sicinski Matthew B., Senior VP and CAO | MExercise | +3.59K | — | — | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Johnston James David Executive VP, GC, CCO and Secy | FTax | −2.92K | $26.81 | $78.4K | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Johnston James David, Executive VP, GC, CCO and Secy | MExercise | +10.8K | — | — | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Deneke J Heath Chairman, President and CEO | FTax | −8.22K | $26.81 | $220K | No | Form 4 ↗ |
| 2026-01-21 | 2026-01-16 | Deneke J Heath, Chairman, President and CEO | MExercise | +32.8K | — | — | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also SMC’s full analysis or the market-wide insider trading feed. The tabs above jump to SMC’s other SEC data.
Source: SEC Form 4 filings for SMC, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.