JOHNSTON JAMES DAVID

PrivateCIK: 1823482
Location

HOUSTON, TX

JOHNSTON JAMES DAVID (Executive VP, GC, CCO and Secy) exercised options at SUMMIT MIDSTREAM CORP

Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.

M · 3 exercises
InsiderJOHNSTON JAMES DAVIDCIK 1823482
IssuerSUMMIT MIDSTREAM CORPCIK 2024218
Officer· Executive VP, GC, CCO and Secy
Since Aug 2024
+21.93K
Net shares
Net buyer
$398.4K
Total sold
0
Open market trades
0B · 0S
11
Total transactions
68.51K acquired · 46.58K disposed
Non-Derivative Transactions6

Common Stock

Direct
M · Option Exercise

Shares

+18.98K

Price / share

Trade value

% of position

32.9%
3/13/2026
57.69K76.66K

Common Stock

Direct
F · Tax Withholding

Shares

7.47K

Price / share

$30.29

Trade value

$226.21K

% of position

9.7%
3/13/2026
76.66K69.20K

Common Stock

Direct
M · Option Exercise

Shares

+4.65K

Price / share

Trade value

% of position

6.7%
3/13/2026
69.20K73.85K

Common Stock

Direct
F · Tax Withholding

Shares

1.83K

Price / share

$30.29

Trade value

$55.46K

% of position

2.5%
3/13/2026
73.85K72.02K

Common Stock

Direct
M · Option Exercise

Shares

+9.79K

Price / share

Trade value

% of position

13.6%
3/13/2026
72.02K81.81K

Common Stock

Direct
F · Tax Withholding

Shares

3.85K

Price / share

$30.29

Trade value

$116.74K

% of position

4.7%
3/13/2026
81.81K77.96K
Total

Net shares

+20.27K

Net value

-$398.40K

Derivative Transactions5

Corporation Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

18.98K shares

Shares

18.98K

Strike price

Held after

70.74K

Exercisable

3/13/2026

Corporation Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

4.65K shares

Shares

4.65K

Strike price

Held after

66.09K

Exercisable

3/13/2026

Corporation Restricted Stock Units

Direct
M · Option Exercise
Converts to

Common Stock

9.79K shares

Shares

9.79K

Strike price

Held after

56.29K

Exercisable

3/13/2026

Corporation Restricted Stock Units

Direct
A · Award
Converts to

Common Stock

17.54K shares

Shares

+17.54K

Strike price

Held after

73.84K

Exercisable

3/16/2026

Corporation Restricted Stock Units

Direct
A · Award
Converts to

Common Stock

17.54K shares

Shares

+17.54K

Strike price

Held after

90.73K

Exercisable

3/16/2026
JOHNSTON JAMES DAVID — Insider Transaction (Form 4) Filed Mar 17, 2026 | Finecho