DIAL CHRISTOPHER B. (SVP, GC and Secretary) sold 3.1% of their position (5.88K shares) of WESTERN MIDSTREAM PARTNERS, LP on the open market

Open‑market sale worth $249.0K — a minor trim. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

DIAL CHRISTOPHER B.

Filed: 2/13/2026ACC: 0001423902-26-000013

InsiderDIAL CHRISTOPHER B.CIK 1729009

→

IssuerWESTERN MIDSTREAM PARTNERS, LPCIK 1423902

Officer· SVP, GC and Secretary

Since Dec 2019

+28.77K

Net shares

Net buyer

$1.53M

Total sold

Open market trades

0B · 1S

Total transactions

156.72K acquired · 127.95K disposed

Non-Derivative Transactions10

Common Units representing limited partner interests

Direct

M · Option Exercise

+10.82K

Price / share

—

Trade value

—

% of position

6.4%

2/12/2026

169.39K→180.21K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−4.26K

Price / share

$42.35

Trade value

$180.33K

% of position

2.4%

2/12/2026

180.21K→175.95K

Common Units representing limited partner interests

Direct

M · Option Exercise

+14.94K

Price / share

—

Trade value

—

% of position

8.5%

2/12/2026

175.95K→190.89K

Common Units representing limited partner interests

Direct

S · Sale

−5.88K

Price / share

$42.35

Trade value

$248.98K

% of position

3.1%

2/12/2026

190.89K→185.01K

Common Units representing limited partner interests

Direct

M · Option Exercise

+10.01K

Price / share

—

Trade value

—

% of position

5.4%

2/12/2026

185.01K→195.02K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−3.94K

Price / share

$42.35

Trade value

$166.82K

% of position

2.0%

2/12/2026

195.02K→191.08K

Common Units representing limited partner interests

Direct

M · Option Exercise

+25.32K

Price / share

—

Trade value

—

% of position

13.2%

2/12/2026

191.08K→216.40K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−9.96K

Price / share

$42.35

Trade value

$421.89K

% of position

4.6%

2/12/2026

216.40K→206.44K

Common Units representing limited partner interests

Direct

M · Option Exercise

+30.70K

Price / share

—

Trade value

—

% of position

14.9%

2/12/2026

206.44K→237.14K

Common Units representing limited partner interests

Direct

F · Tax Withholding

−12.12K

Price / share

$42.35

Trade value

$513.45K

% of position

5.1%

2/12/2026

237.14K→225.01K

Total

Net shares

+55.63K

Net value

-$1.53M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Units representing limited partner interests Direct	2/12/2026	M · Option Exercise	+10.82K	—	—	6.4%	169.39K	180.21K
Common Units representing limited partner interests Direct	2/12/2026	F · Tax Withholding	−4.26K	$42.35	$180.33K	2.4%	180.21K	175.95K
Common Units representing limited partner interests Direct	2/12/2026	M · Option Exercise	+14.94K	—	—	8.5%	175.95K	190.89K
Common Units representing limited partner interests Direct	2/12/2026	S · Sale	−5.88K	$42.35	$248.98K	3.1%	190.89K	185.01K
Common Units representing limited partner interests Direct	2/12/2026	M · Option Exercise	+10.01K	—	—	5.4%	185.01K	195.02K
Common Units representing limited partner interests Direct	2/12/2026	F · Tax Withholding	−3.94K	$42.35	$166.82K	2.0%	195.02K	191.08K
Common Units representing limited partner interests Direct	2/12/2026	M · Option Exercise	+25.32K	—	—	13.2%	191.08K	216.40K
Common Units representing limited partner interests Direct	2/12/2026	F · Tax Withholding	−9.96K	$42.35	$421.89K	4.6%	216.40K	206.44K
Common Units representing limited partner interests Direct	2/12/2026	M · Option Exercise	+30.70K	—	—	14.9%	206.44K	237.14K
Common Units representing limited partner interests Direct	2/12/2026	F · Tax Withholding	−12.12K	$42.35	$513.45K	5.1%	237.14K	225.01K
Total			+55.63K		-$1.53M

Derivative Transactions8

2023 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

10.82K shares

−10.82K

Strike price

Held after

0.00

Exercisable

—

2/12/2026

2023 Performance Unit - TUR

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

25.32K shares

−25.32K

Strike price

Held after

0.00

Exercisable

—

2/12/2026

2023 Performance Unit - ROA

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

30.70K shares

−30.70K

Strike price

Held after

0.00

Exercisable

—

2/12/2026

2024 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

14.94K shares

−14.94K

Strike price

Held after

14.94K

Exercisable

—

2/12/2026

2025 Phantom Units

Direct

M · Option Exercise

Converts to

Common Units representing limited partner interests

10.01K shares

−10.01K

Strike price

Held after

20.02K

Exercisable

—

2/12/2026

2026 Phantom Units

Direct

A · Award

Converts to

Common Units representing limited partner interests

32.47K shares

+32.47K

Strike price

Held after

32.47K

Exercisable

—

2/12/2026

2026 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

—

2/12/2026

2026 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

—

2/12/2026

Security	Converts To	Date	Type	Shares	Exercisable	Held After
2023 Phantom Units Direct	Common Units representing limited partner interests10.82K shares	2/12/2026	M · Option Exercise	−10.82K	—	0.00
2023 Performance Unit - TUR Direct	Common Units representing limited partner interests25.32K shares	2/12/2026	M · Option Exercise	−25.32K	—	0.00
2023 Performance Unit - ROA Direct	Common Units representing limited partner interests30.70K shares	2/12/2026	M · Option Exercise	−30.70K	—	0.00
2024 Phantom Units Direct	Common Units representing limited partner interests14.94K shares	2/12/2026	M · Option Exercise	−14.94K	—	14.94K
2025 Phantom Units Direct	Common Units representing limited partner interests10.01K shares	2/12/2026	M · Option Exercise	−10.01K	—	20.02K
2026 Phantom Units Direct	Common Units representing limited partner interests32.47K shares	2/12/2026	A · Award	+32.47K	—	32.47K
2026 Performance Unit - TUR Direct	Common Units representing limited partner interests16.23K shares	2/12/2026	A · Award	+16.23K	—	16.23K
2026 Performance Unit - ROA Direct	Common Units representing limited partner interests16.23K shares	2/12/2026	A · Award	+16.23K	—	16.23K

Non-Derivative Holdings (Post-Transaction)0

No non-derivative holdings reported

Derivative Holdings (Post-Transaction)4

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

—

2025 Performance Unit-ROA

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

15.01K

Shares owned

15.01K

Exercise price

Expiration

—

Exercise window

—

2025 Performance Unit-TUR

Direct

Underlying security

Common Units representing limited partner interests

Underlying shares

15.01K

Shares owned

15.01K

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

74.84K

Owned

74.84K

Security	Underlying	Exercise Window	Expiration	Underlying Shares	Shares Owned
2024 Performance Unit - TUR Direct	Common Units representing limited partner interests	—	—	22.41K	22.41K
2025 Performance Unit-ROA Direct	Common Units representing limited partner interests	—	—	15.01K	15.01K
2025 Performance Unit-TUR Direct	Common Units representing limited partner interests	—	—	15.01K	15.01K
2024 Performance Unit - ROA Direct	Common Units representing limited partner interests	—	—	22.41K	22.41K
Total				74.84K	74.84K