Oscar K. Brown - 12 Feb 2026 Form 4 Insider Report for Western Midstream Partners, LP (WES)

Reporting relationship: President & CEO, Director
Issuer ticker: WES
Reported as of: 12 Feb 2026
Net transaction value: -$445,098
SEC form: 4
Accepted by SEC: 13 Feb 2026, 17:27:37 UTC
Prior SEC filing: 29 Oct 2025
Source filing: View source filing
Reporting owner signature: /s/ Philip C. Neisel, as attorney-in-fact

Key filing fact

Oscar K. Brown filed Form 4 for Western Midstream Partners, LP (WES) on 13 Feb 2026.

Key facts

This page summarizes Oscar K. Brown's Form 4 filing for Western Midstream Partners, LP (WES).
6 reported transactions and 7 derivative rows are listed below.
Accepted by SEC: 13 Feb 2026, 17:27.

Change

Previous filing in this sequence was filed on 29 Oct 2025.
Current net transaction value: -$445,098.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001715126 Primary reporting owner

Brown Oscar K

Relationship: President & CEO, Director
Address: 9950 WOODLOCH FOREST DR., THE WOODLANDS
Signature: /s/ Philip C. Neisel, as attorney-in-fact
Signature date: 13 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

WES transaction

Common Units representing limited partner interests

Options Exercise

Transaction value: $0
Shares: +24,022
Change %: +33%
Price: $0.000000
Shares after: 95,950
Date: 12 Feb 2026
Ownership: Direct

WES transaction

Common Units representing limited partner interests

Tax liability

Transaction value: $445,098
Shares: -10,510
Change %: -11%
Price: $42.35
Shares after: 85,440
Date: 12 Feb 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

WES transaction Derivative

2025 Phantom Units

Options Exercise

Transaction value: $0
Shares: -24,022
Change %: -33%
Price: $0.000000
Shares after: 48,041
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 24,022
Exercise price
Footnotes: F1, F3

WES transaction Derivative

2026 Phantom Units

Award

Transaction value: $0
Shares: +94,451
Change %
Price: $0.000000
Shares after: 94,451
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 94,451
Exercise price
Footnotes: F1, F3

WES transaction Derivative

2026 Performance Unit - TUR

Award

Transaction value: $0
Shares: +47,226
Change %
Price: $0.000000
Shares after: 47,226
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 47,226
Exercise price
Footnotes: F5

WES transaction Derivative

2026 Performance Unit - ROA

Award

Transaction value: $0
Shares: +47,226
Change %
Price: $0.000000
Shares after: 47,226
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 47,226
Exercise price
Footnotes: F5

WES holding Derivative

2024 Phantom Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 105,318
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 105,318
Exercise price
Footnotes: F1, F2

WES holding Derivative

2025 Performance Unit-TUR

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 36,032
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 36,032
Exercise price
Footnotes: F4

WES holding Derivative

2025 Performance Unit-ROA

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 36,032
Date: 12 Feb 2026
Ownership: Direct
Underlying class: Common Units representing limited partner interests
Underlying amount: 36,032
Exercise price
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote 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.

Footnote 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.

Footnote 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.

Footnote 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.

Footnote F5

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