JOHNSTON JAMES DAVID (See remarks below.) sold 2.6% of their position (600.00 shares) of SUMMIT MIDSTREAM PARTNERS, LP on the open market

Open‑market sale worth $12.2K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

JOHNSTON JAMES DAVID

Filed: 3/19/2024ACC: 0001549922-24-000035

InsiderJOHNSTON JAMES DAVIDCIK 1823482

→

IssuerSUMMIT MIDSTREAM PARTNERS, LPCIK 1549922

Officer· See remarks below.

Since Sep 2020

-10.26K

Net shares

Net seller

$190.3K

Total sold

Open market trades

0B · 1S

Total transactions

39.01K acquired · 49.26K disposed

Non-Derivative Transactions11

Common Units

Direct

S · Sale

−600.00

Price / share

$20.25

Trade value

$12.15K

% of position

2.6%

3/15/2024

22.85K→22.25K

Common Units

Direct

M · Option Exercise

+8.36K

Price / share

—

Trade value

—

% of position

37.6%

3/15/2024

22.25K→30.61K

Common Units

Direct

F · Tax Withholding

−2.04K

Price / share

$18.45

Trade value

$37.56K

% of position

6.7%

3/15/2024

30.61K→28.57K

Common Units

Direct

M · Option Exercise

+5.54K

Price / share

—

Trade value

—

% of position

19.4%

3/15/2024

28.57K→34.12K

Common Units

Direct

F · Tax Withholding

−1.35K

Price / share

$18.45

Trade value

$24.93K

% of position

4.0%

3/15/2024

34.12K→32.77K

Common Units

Direct

M · Option Exercise

+12.05K

Price / share

—

Trade value

—

% of position

36.8%

3/15/2024

32.77K→44.82K

Common Units

Direct

F · Tax Withholding

−2.94K

Price / share

$18.45

Trade value

$54.17K

% of position

6.6%

3/15/2024

44.82K→41.89K

Common Units

Direct

M · Option Exercise

+3.25K

Price / share

—

Trade value

—

% of position

7.8%

3/15/2024

41.89K→45.14K

Common Units

Direct

F · Tax Withholding

−793.00

Price / share

$18.45

Trade value

$14.63K

% of position

1.8%

3/15/2024

45.14K→44.35K

Common Units

Direct

M · Option Exercise

+9.79K

Price / share

—

Trade value

—

% of position

22.1%

3/15/2024

44.35K→54.14K

Common Units

Direct

F · Tax Withholding

−2.54K

Price / share

$18.45

Trade value

$46.86K

% of position

4.7%

3/15/2024

54.14K→51.60K

Total

Net shares

+28.75K

Net value

-$190.30K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units Direct	3/15/2024	S · Sale	−600.00	$20.25	$12.15K	2.6%	22.85K	22.25K
Common Units Direct	3/15/2024	M · Option Exercise	+8.36K	—	—	37.6%	22.25K	30.61K
Common Units Direct	3/15/2024	F · Tax Withholding	−2.04K	$18.45	$37.56K	6.7%	30.61K	28.57K
Common Units Direct	3/15/2024	M · Option Exercise	+5.54K	—	—	19.4%	28.57K	34.12K
Common Units Direct	3/15/2024	F · Tax Withholding	−1.35K	$18.45	$24.93K	4.0%	34.12K	32.77K
Common Units Direct	3/15/2024	M · Option Exercise	+12.05K	—	—	36.8%	32.77K	44.82K
Common Units Direct	3/15/2024	F · Tax Withholding	−2.94K	$18.45	$54.17K	6.6%	44.82K	41.89K
Common Units Direct	3/15/2024	M · Option Exercise	+3.25K	—	—	7.8%	41.89K	45.14K
Common Units Direct	3/15/2024	F · Tax Withholding	−793.00	$18.45	$14.63K	1.8%	45.14K	44.35K
Common Units Direct	3/15/2024	M · Option Exercise	+9.79K	—	—	22.1%	44.35K	54.14K
Common Units Direct	3/15/2024	F · Tax Withholding	−2.54K	$18.45	$46.86K	4.7%	54.14K	51.60K
Total			+28.75K		-$190.30K

Derivative Transactions5

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

8.36K shares

−8.36K

Strike price

Held after

0.00

Exercisable

—

3/15/2024

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

5.54K shares

−5.54K

Strike price

Held after

5.54K

Exercisable

—

3/15/2024

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

12.05K shares

−12.05K

Strike price

Held after

4.02K

Exercisable

—

3/15/2024

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

3.25K shares

−3.25K

Strike price

Held after

0.00

Exercisable

—

3/15/2024

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

9.79K shares

−9.79K

Strike price

Held after

9.83K

Exercisable

—

3/15/2024

Security	Converts To	Date	Type	Shares	Exercisable	Held After
Phantom Units Direct	Common Units8.36K shares	3/15/2024	M · Option Exercise	−8.36K	—	0.00
Phantom Units Direct	Common Units5.54K shares	3/15/2024	M · Option Exercise	−5.54K	—	5.54K
Phantom Units Direct	Common Units12.05K shares	3/15/2024	M · Option Exercise	−12.05K	—	4.02K
Phantom Units Direct	Common Units3.25K shares	3/15/2024	M · Option Exercise	−3.25K	—	0.00
Phantom Units Direct	Common Units9.79K shares	3/15/2024	M · Option Exercise	−9.79K	—	9.83K