Exercise4

Western Midstream Partners, LP

Total Value

$1.0M

Filing Date

Oct 29, 2026

1 transactions

Trade Summary

On Oct 28, 2026, Brown Oscar K, President & CEO, Director, reported $1.0M of Western Midstream Partners, LP (WES) across 1 transactions. The filing covers Common Units representing limited partner interests and reflects balanced net activity of $0. Reported prices ranged from $45.03. Insider transactions are sourced from SEC Form 4 disclosures and should be reviewed alongside company fundamentals and the insider's broader trading history.

Insider Information

Name: Brown Oscar K
Role: President & CEO, Director
Location: THE WOODLANDS, TX

Filing Details

Filing Date: Oct 29, 2026
Transaction Date: Oct 28, 2026
Accession Number: 0001423902-26-000105
Form Type: 4

Non-Derivative Transactions

Date	Security	Shares	Price	Type	Value
Oct 28, 2026	Common Units representing limited partner interests	52,659	—	Exercise	—
Oct 28, 2026	Common Units representing limited partner interests	23,039	$45.03	Tax Withholding	$1.0M

Derivative Transactions

Date	Security	Shares	Exercise Price	Type	Value
Oct 28, 2026	WES derivative	52,659	—	Exercise	—

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Footnotes

(F1)Each Phantom Unit is the economic equivalent of one WES Common Unit representing limited partnership interests, and upon vesting, will entitle the holder to receive a common unit or, at the discretion of the Board of Directors of the General Partner, cash equal to the Fair Market Value of a Common Unit.
(F2)These Phantom Units vest ratably over a three-year period on October 28th each year, and will pay distribution equivalent rights in cash on a current basis.
(F3)These Phantom Units vest ratably over a three-year period on February 12th of each year, and will pay distribution equivalent rights in cash on a current basis.
(F4)Each performance-based unit represents the right to receive, following vesting, between 0% and 200% of one WES Common Unit based upon the achievement of pre-established performance metrics over a 3-year performance period.
(F5)Each performance-based unit represents the right to receive, following vesting, between 0% and 200% of one WES Common Unit (or the cash equivalent) based upon the achievement of pre-established performance metrics over a 3-year performance period.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Brown Oscar K

(Last)

(First)

(Middle)

9950 WOODLOCH FOREST DR.

(Street)

THE WOODLANDS

77380

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
Western Midstream Partners, LP [ WES ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President & CEO

3. Date of Earliest Transaction (Month/Day/Year)
10/28/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Units representing limited partner interests	10/28/2026		M		52,659	A	$0	138,099	D
Common Units representing limited partner interests	10/28/2026		F		23,039	D	$45.03	115,060	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
2024 Phantom Units	⁽¹⁾	10/28/2026		M			52,659	⁽²⁾	10/28/2027	Common Units representing limited partner interests	52,659	$0	52,659	D
2025 Phantom Units	⁽¹⁾							⁽³⁾	02/12/2028	Common Units representing limited partner interests	48,041		48,041	D
2026 Phantom Units	⁽¹⁾							⁽³⁾	02/12/2029	Common Units representing limited partner interests	94,451		94,451	D
2025 Performance Unit-ROA	⁽⁴⁾							02/12/2028	02/12/2028	Common Units representing limited partner interests	36,032		36,032	D
2025 Performance Unit-TUR	⁽⁴⁾							02/12/2028	02/12/2028	Common Units representing limited partner interests	36,032		36,032	D
2026 Performance Unit - ROA	⁽⁵⁾							02/12/2029	02/12/2029	Common Units representing limited partner interests	47,226		47,226	D
2026 Performance Unit - TUR	⁽⁵⁾							02/12/2029	02/12/2029	Common Units representing limited partner interests	47,226		47,226	D

Explanation of Responses:

1. Each Phantom Unit is the economic equivalent of one WES Common Unit representing limited partnership interests, and upon vesting, will entitle the holder to receive a common unit or, at the discretion of the Board of Directors of the General Partner, cash equal to the Fair Market Value of a Common Unit.

2. These Phantom Units vest ratably over a three-year period on October 28th each year, and will pay distribution equivalent rights in cash on a current basis.

3. These Phantom Units vest ratably over a three-year period on February 12th of each year, and will pay distribution equivalent rights in cash on a current basis.

4. Each performance-based unit represents the right to receive, following vesting, between 0% and 200% of one WES Common Unit based upon the achievement of pre-established performance metrics over a 3-year performance period.

5. Each performance-based unit represents the right to receive, following vesting, between 0% and 200% of one WES Common Unit (or the cash equivalent) based upon the achievement of pre-established performance metrics over a 3-year performance period.

Remarks:

	/s/ Philip C. Neisel, as attorney-in-fact	10/29/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Form 4 as rendered by the SEC from accession 0001423902-26-000105.

Western Midstream Partners, LP

Trade Summary

Company Information

Insider Information

Filing Details

Non-Derivative Transactions

Derivative Transactions

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Footnotes

SEC Form 4

SEC Filing

SEC Form 4