MATTHEWS LOUISE E (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

MATTHEWS LOUISE E

Filed: 3/18/2019ACC: 0001209191-19-020096

InsiderMATTHEWS LOUISE ECIK 1681845

→

IssuerSUMMIT MIDSTREAM PARTNERS, LPCIK 1549922

Officer· See remarks below.

Since Mar 2019

+39.52K

Net shares

Net buyer

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

62.72K acquired · 23.20K disposed

Non-Derivative Transactions1

Common Units

Direct

M · Option Exercise

+11.60K

Price / share

—

Trade value

—

% of position

82.2%

3/15/2019

14.11K→25.71K

Total

Net shares

+11.60K

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	+11.60K	—	—	82.2%	14.11K	25.71K
Total			+11.60K		$0.00

Derivative Transactions7

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

3.94K shares

−3.94K

Strike price

Held after

0.00

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

3.94K shares

−3.94K

Strike price

6.90

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

2.96K shares

−2.96K

Strike price

Held after

2.96K

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

2.96K shares

−2.96K

Strike price

4.60

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

4.70K shares

−4.70K

Strike price

Held after

9.40K

Exercisable

—

3/15/2019

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

4.70K shares

−4.70K

Strike price

2.30

Held after

0.00

Exercisable

—

3/15/2019

Phantom Units

Direct

A · Award

Converts to

Common Units

51.12K shares

+51.12K

Strike price

Held after

51.12K

Exercisable

—

3/15/2019

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Phantom Units Direct	Common Units3.94K shares	3/15/2019	M · Option Exercise	−3.94K		—	0.00
Distribution Equivalent Rights Direct	Common Units3.94K shares	3/15/2019	D · Disposition	−3.94K	6.90	—	0.00
Phantom Units Direct	Common Units2.96K shares	3/15/2019	M · Option Exercise	−2.96K		—	2.96K
Distribution Equivalent Rights Direct	Common Units2.96K shares	3/15/2019	D · Disposition	−2.96K	4.60	—	0.00
Phantom Units Direct	Common Units4.70K shares	3/15/2019	M · Option Exercise	−4.70K		—	9.40K
Distribution Equivalent Rights Direct	Common Units4.70K shares	3/15/2019	D · Disposition	−4.70K	2.30	—	0.00
Phantom Units Direct	Common Units51.12K shares	3/15/2019	A · Award	+51.12K		—	51.12K