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: 3/17/2020ACC: 0001209191-20-019753

InsiderMATTHEWS LOUISE ECIK 1681845

→

IssuerSUMMIT MIDSTREAM PARTNERS, LPCIK 1549922

Officer· See remarks below.

Since Mar 2019

-24.70K

Net shares

Net seller

$0.00

Total acquired

Open market trades

0B · 0S

Total transactions

24.70K acquired · 49.41K disposed

Non-Derivative Transactions1

Common Units

Direct

M · Option Exercise

+24.70K

Price / share

—

Trade value

—

% of position

96.1%

3/15/2020

25.71K→50.42K

Total

Net shares

+24.70K

Net value

$0.00

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units Direct	3/15/2020	M · Option Exercise	+24.70K	—	—	96.1%	25.71K	50.42K
Total			+24.70K		$0.00

Derivative Transactions6

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

2.96K shares

−2.96K

Strike price

Held after

0.00

Exercisable

—

3/15/2020

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

2.96K shares

−2.96K

Strike price

5.5875

Held after

0.00

Exercisable

—

3/15/2020

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

4.70K shares

−4.70K

Strike price

Held after

4.70K

Exercisable

—

3/15/2020

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

4.70K shares

−4.70K

Strike price

3.2875

Held after

0.00

Exercisable

—

3/15/2020

Phantom Units

Direct

M · Option Exercise

Converts to

Common Units

17.04K shares

−17.04K

Strike price

Held after

34.08K

Exercisable

—

3/15/2020

Distribution Equivalent Rights

Direct

D · Disposition

Converts to

Common Units

17.04K shares

−17.04K

Strike price

0.9875

Held after

0.00

Exercisable

—

3/15/2020

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Phantom Units Direct	Common Units2.96K shares	3/15/2020	M · Option Exercise	−2.96K		—	0.00
Distribution Equivalent Rights Direct	Common Units2.96K shares	3/15/2020	D · Disposition	−2.96K	5.5875	—	0.00
Phantom Units Direct	Common Units4.70K shares	3/15/2020	M · Option Exercise	−4.70K		—	4.70K
Distribution Equivalent Rights Direct	Common Units4.70K shares	3/15/2020	D · Disposition	−4.70K	3.2875	—	0.00
Phantom Units Direct	Common Units17.04K shares	3/15/2020	M · Option Exercise	−17.04K		—	34.08K
Distribution Equivalent Rights Direct	Common Units17.04K shares	3/15/2020	D · Disposition	−17.04K	0.9875	—	0.00