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 · 3 exercises

HOLDERMAN DANIEL P.

Filed: 2/14/2025ACC: 0001423902-25-000006

InsiderHOLDERMAN DANIEL P.CIK 1942513

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IssuerWESTERN MIDSTREAM PARTNERS, LPCIK 1423902

Officer· SVP & Chief Operating Officer

Since Feb 2026

-12.95K

Net shares

Net seller

$516.4K

Total sold

Open market trades

0B · 0S

Total transactions

32.81K acquired · 45.77K disposed

Non-Derivative Transactions6

Common Units representing limited partner interests

Direct

M · Option Exercise

+7.05K

Price / share

—

Trade value

—

% of position

44.4%

2/12/2025

15.89K→22.94K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−2.82K

Price / share

$39.87

Trade value

$112.27K

% of position

12.3%

2/12/2025

22.94K→20.13K

Common Units representing limited partner interests

Direct

M · Option Exercise

+10.82K

Price / share

—

Trade value

—

% of position

53.8%

2/12/2025

20.13K→30.95K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−4.26K

Price / share

$39.87

Trade value

$169.77K

% of position

13.8%

2/12/2025

30.95K→26.69K

Common Units representing limited partner interests

Direct

M · Option Exercise

+14.94K

Price / share

—

Trade value

—

% of position

56.0%

2/12/2025

26.69K→41.63K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−5.88K

Price / share

$39.87

Trade value

$234.40K

% of position

14.1%

2/12/2025

41.63K→35.75K

Total

Net shares

+19.86K

Net value

-$516.44K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units representing limited partner interests Direct	2/12/2025	M · Option Exercise	+7.05K	—	—	44.4%	15.89K	22.94K
Common Units representing limited partner interests Direct	2/12/2025	F · Tax Withholding	−2.82K	$39.87	$112.27K	12.3%	22.94K	20.13K
Common Units representing limited partner interests Direct	2/12/2025	M · Option Exercise	+10.82K	—	—	53.8%	20.13K	30.95K
Common Units representing limited partner interests Direct	2/12/2025	F · Tax Withholding	−4.26K	$39.87	$169.77K	13.8%	30.95K	26.69K
Common Units representing limited partner interests Direct	2/12/2025	M · Option Exercise	+14.94K	—	—	56.0%	26.69K	41.63K
Common Units representing limited partner interests Direct	2/12/2025	F · Tax Withholding	−5.88K	$39.87	$234.40K	14.1%	41.63K	35.75K
Total			+19.86K		-$516.44K

Derivative Transactions3

2022 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

7.05K shares

−7.05K

Strike price

Held after

0.00

Exercisable

—

2/12/2025

2023 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

10.82K shares

−10.82K

Strike price

Held after

10.82K

Exercisable

—

2/12/2025

2024 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

14.94K shares

−14.94K

Strike price

Held after

29.88K

Exercisable

—

2/12/2025

Security	Converts To	Date	Type	Shares	Exercisable	Held After
2022 Phantom Units Direct	Common Units representing limited partner interests7.05K shares	2/12/2025	M · Option Exercise	−7.05K	—	0.00
2023 Phantom Units Direct	Common Units representing limited partner interests10.82K shares	2/12/2025	M · Option Exercise	−10.82K	—	10.82K
2024 Phantom Units Direct	Common Units representing limited partner interests14.94K shares	2/12/2025	M · Option Exercise	−14.94K	—	29.88K

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)4

2023 Performance Unit - TUR

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

16.23K

Shares owned

16.23K

Exercise price

Expiration

—

Exercise window

—

2023 Performance Unit - ROA

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

16.23K

Shares owned

16.23K

Exercise price

Expiration

—

Exercise window

—

2024 Performance Unit - TUR

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

22.41K

Shares owned

22.41K

Exercise price

Expiration

—

Exercise window

—

2024 Performance Unit - ROA

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

22.41K

Shares owned

22.41K

Exercise price

Expiration

—

Exercise window

—

Total

Underlying

77.27K

Owned

77.27K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
2023 Performance Unit - TUR Direct	Common Units representing limited partner interests	—	—	16.23K	16.23K
2023 Performance Unit - ROA Direct	Common Units representing limited partner interests	—	—	16.23K	16.23K
2024 Performance Unit - TUR Direct	Common Units representing limited partner interests	—	—	22.41K	22.41K
2024 Performance Unit - ROA Direct	Common Units representing limited partner interests	—	—	22.41K	22.41K
Total				77.27K	77.27K