DEGEYTER BROCK M (See remarks below.) exercised options at SUMMIT MIDSTREAM PARTNERS, LP

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

M · 1 exercise

DEGEYTER BROCK M

Filed: 3/18/2019ACC: 0001209191-19-020082

InsiderDEGEYTER BROCK MCIK 1558304

→

IssuerSUMMIT MIDSTREAM PARTNERS, LPCIK 1549922

Officer· See remarks below.

Since Jul 2018

+25.25K

Net shares

Net buyer

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

102.56K acquired · 77.30K disposed

Non-Derivative Transactions1

Common Units

Direct

M · Option Exercise

+38.65K

Price / share

—

Trade value

—

% of position

75.3%

3/15/2019

51.34K→89.99K

Total

Net shares

+38.65K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units Direct	3/15/2019	M · Option Exercise	+38.65K	—	—	75.3%	51.34K	89.99K
Total			+38.65K		$0.00

Derivative Transactions7

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

14.62K shares

−14.62K

Strike price

Held after

0.00

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

14.62K shares

−14.62K

Strike price

6.90

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

10.37K shares

−10.37K

Strike price

Held after

10.37K

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

10.37K shares

−10.37K

Strike price

4.60

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

13.66K shares

−13.66K

Strike price

Held after

27.32K

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

13.66K shares

−13.66K

Strike price

2.30

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

A · Award

Converts to

Common Units

63.91K shares

+63.91K

Strike price

Held after

63.91K

Exercisable

—

3/15/2019

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Phantom Units Direct	Common Units14.62K shares	3/15/2019	M · Option Exercise	−14.62K		—	0.00
Distribution Equivalent Rights Direct	Common Units14.62K shares	3/15/2019	D · Disposition	−14.62K	6.90	—	0.00
Phantom Units Direct	Common Units10.37K shares	3/15/2019	M · Option Exercise	−10.37K		—	10.37K
Distribution Equivalent Rights Direct	Common Units10.37K shares	3/15/2019	D · Disposition	−10.37K	4.60	—	0.00
Phantom Units Direct	Common Units13.66K shares	3/15/2019	M · Option Exercise	−13.66K		—	27.32K
Distribution Equivalent Rights Direct	Common Units13.66K shares	3/15/2019	D · Disposition	−13.66K	2.30	—	0.00
Phantom Units Direct	Common Units63.91K shares	3/15/2019	A · Award	+63.91K		—	63.91K