HOLDERMAN DANIEL P. (SVP & Chief Operating Officer) exercised options at WESTERN MIDSTREAM PARTNERS, LP

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

M · 1 exercise

HOLDERMAN DANIEL P.

Filed: 2/14/2023ACC: 0001423902-23-000010

InsiderHOLDERMAN DANIEL P.CIK 1942513

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IssuerWESTERN MIDSTREAM PARTNERS, LPCIK 1423902

Officer· SVP & Chief Operating Officer

Since Feb 2026

+63.87K

Net shares

Net buyer

$29.6K

Total sold

Open market trades

0B · 0S

Total transactions

68.44K acquired · 4.57K disposed

Non-Derivative Transactions2

Common Units representing limited partner interests

Direct

M · Option Exercise

+3.53K

Price / share

—

Trade value

—

% of position

New position

2/12/2023

0.00→3.53K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−1.05K

Price / share

$28.26

Trade value

$29.56K

% of position

29.6%

2/12/2023

3.53K→2.48K

Total

Net shares

+2.48K

Net value

-$29.56K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units representing limited partner interests Direct	2/12/2023	M · Option Exercise	+3.53K	—	—	New position	0.00	3.53K
Common Units representing limited partner interests Direct	2/12/2023	F · Tax Withholding	−1.05K	$28.26	$29.56K	29.6%	3.53K	2.48K
Total			+2.48K		-$29.56K

Derivative Transactions4

2022 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

3.53K shares

−3.53K

Strike price

Held after

14.11K

Exercisable

—

2/12/2023

2023 Phantom Units

Direct

A · Award

Converts to

Common Units representing limited partner interests

32.46K shares

+32.46K

Strike price

Held after

32.46K

Exercisable

—

2/14/2023

2023 Performance Unit - TUR

Direct

A · Award

Converts to

Common Units representing limited partner interests

16.23K shares

+16.23K

Strike price

Held after

16.23K

Exercisable

—

2/14/2023

2023 Performance Unit - ROA

Direct

A · Award

Converts to

Common Units representing limited partner interests

16.23K shares

+16.23K

Strike price

Held after

16.23K

Exercisable

—

2/14/2023

Security	Converts To	Date	Type	Shares	Exercisable	Held After
2022 Phantom Units Direct	Common Units representing limited partner interests3.53K shares	2/12/2023	M · Option Exercise	−3.53K	—	14.11K
2023 Phantom Units Direct	Common Units representing limited partner interests32.46K shares	2/14/2023	A · Award	+32.46K	—	32.46K
2023 Performance Unit - TUR Direct	Common Units representing limited partner interests16.23K shares	2/14/2023	A · Award	+16.23K	—	16.23K
2023 Performance Unit - ROA Direct	Common Units representing limited partner interests16.23K shares	2/14/2023	A · Award	+16.23K	—	16.23K