James David Johnston

CIK: 0001823482

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)3 (13.0%)

Position reduction

Option Exercises (M)8 (34.8%)

Derivative conversions

Awards (A)4 (17.4%)

Compensation grants

Other (G, F, J, C, D, …)8 (34.8%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

SMC

Summit Midstream Corp

Officer

Discretionary Trading P&L

Holdings

Transaction History (23 total)

SMC
Summit Midstream Corp
Oct 1, 2026
Sale(S)
Direct
2.6K shares at avg. $30.51$79K
SMC
Summit Midstream Corp
Jul 2, 2026
Sale(S)
Direct
2.6K shares at avg. $29.72$77K
SMC
Summit Midstream Corp
Mar 16, 2026
Award(A)
Corporation Restricted Stock Units
Direct
17.5K shares-
SMC
Summit Midstream Corp
Mar 16, 2026
Award(A)
Corporation Restricted Stock Units
Direct
17.5K shares-
SMC
Summit Midstream Corp
Mar 13, 2026
Tax Payment(F)
Direct
3.9K shares at avg. $30.29$117K
SMC
Summit Midstream Corp
Mar 13, 2026
Exercise(M)
Direct
19K shares-
SMC
Summit Midstream Corp
Mar 13, 2026
Tax Payment(F)
Direct
7.5K shares at avg. $30.29$226K
SMC
Summit Midstream Corp
Mar 13, 2026
Exercise(M)
Direct
4.7K shares-
SMC
Summit Midstream Corp
Mar 13, 2026
Tax Payment(F)
Direct
1.8K shares at avg. $30.29$55K
SMC
Summit Midstream Corp
Mar 13, 2026
Exercise(M)
Direct
9.8K shares-
SMC
Summit Midstream Corp
Jan 16, 2026
Tax Payment(F)
Direct
2.9K shares at avg. $26.81$78K
SMC
Summit Midstream Corp
Jan 16, 2026
Exercise(M)
Direct
10.8K shares-
SMC
Summit Midstream Corp
Mar 15, 2025
Exercise(M)
Direct
9.8K shares-
SMC
Summit Midstream Corp
Mar 15, 2025
Exercise(M)
Direct
4K shares-
SMC
Summit Midstream Corp
Mar 15, 2025
Exercise(M)
Direct
5.5K shares-
SMC
Summit Midstream Corp
Mar 15, 2025
Tax Payment(F)
Direct
3.4K shares at avg. $37.44$127K
SMC
Summit Midstream Corp
Mar 15, 2025
Tax Payment(F)
Direct
979 shares at avg. $37.44$37K
SMC
Summit Midstream Corp
Mar 15, 2025
Tax Payment(F)
Direct
1.4K shares at avg. $37.44$51K
SMC
Summit Midstream Corp
Mar 14, 2025
Award(A)
Corporation Restricted Stock Units
Direct
14K shares-
SMC
Summit Midstream Corp
Mar 14, 2025
Award(A)
Corporation Restricted Stock Units
Direct
14K shares-
SMC
Summit Midstream Corp
Jan 18, 2025
Tax Payment(F)
Direct
2.8K shares at avg. $41.57$117K
SMC
Summit Midstream Corp
Jan 18, 2025
Exercise(M)
Direct
10.8K shares-
SMC
Summit Midstream Corp
Dec 12, 2024
Sale(S)
Direct
20K shares at avg. $36.20$724K

		Type	Shares	Price		Ownership
Oct 1, 2026	SMC Summit Midstream Corp	Sale(S)	2,600	$30.51	$79,326	Direct
Jul 2, 2026	SMC Summit Midstream Corp	Sale(S)	2,600	$29.72	$77,272	Direct
Mar 16, 2026	SMC Summit Midstream Corp	Award(A) Corporation Restricted Stock Units	17,544	-	-	Direct
Mar 16, 2026	SMC Summit Midstream Corp	Award(A) Corporation Restricted Stock Units	17,544	-	-	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Tax Payment(F)	3,854	$30.29	$116,738	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Exercise(M)	18,977	-	$0	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Tax Payment(F)	7,468	$30.29	$226,206	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Exercise(M)	4,653	-	$0	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Tax Payment(F)	1,831	$30.29	$55,461	Direct
Mar 13, 2026	SMC Summit Midstream Corp	Exercise(M)	9,793	-	$0	Direct
Jan 16, 2026	SMC Summit Midstream Corp	Tax Payment(F)	2,923	$26.81	$78,366	Direct
Jan 16, 2026	SMC Summit Midstream Corp	Exercise(M)	10,794	-	$0	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Exercise(M)	9,793	-	-	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Exercise(M)	4,018	-	-	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Exercise(M)	5,544	-	-	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Tax Payment(F)	3,395	$37.44	$127,109	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Tax Payment(F)	979	$37.44	$36,654	Direct
Mar 15, 2025	SMC Summit Midstream Corp	Tax Payment(F)	1,350	$37.44	$50,544	Direct
Mar 14, 2025	SMC Summit Midstream Corp	Award(A) Corporation Restricted Stock Units	13,958	-	-	Direct
Mar 14, 2025	SMC Summit Midstream Corp	Award(A) Corporation Restricted Stock Units	13,958	-	-	Direct
Jan 18, 2025	SMC Summit Midstream Corp	Tax Payment(F)	2,811	$41.57	$116,853	Direct
Jan 18, 2025	SMC Summit Midstream Corp	Exercise(M)	10,795	-	$0	Direct
Dec 12, 2024	SMC Summit Midstream Corp	Sale(S)	20,000	$36.20	$724,000	Direct

1-23 of 23 transactions

About Johnston James David

Johnston James David (SEC CIK 0001823482) files insider reports with the SEC as Executive VP, GC, CCO and Secy of Summit Midstream Corp (SMC).

Signal8 holds 7 ownership filings by Johnston James David, all Form 4s, filed between Dec 13, 2024 and Oct 2, 2026. Those filings report 23 transactions, from Dec 12, 2024 to Oct 1, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on Johnston James David's filings is in HOUSTON, TX.

Recent filings by Johnston James David

Oct 1, 2026: Open-market sale of SMC shares (Form 4, code S).
Jul 2, 2026: Open-market sale of SMC shares (Form 4, code S).
Mar 16, 2026: Grants or awards of SMC derivative securities (2 lines, Form 4, code A).
Mar 13, 2026: Tax withholding of SMC shares (Form 4, code F).
Mar 13, 2026: Option exercise of SMC shares (Form 4, code M).

Other insiders filing for Summit Midstream Corp (SMC)

How to read Form 4 transaction codes