Oscar K. Brown - 28 Oct 2026 Form 4 Insider Report for Western Midstream Partners, LP (WES)

Source evidence Original filing metadata and source links for verification. 4 source fields
SEC form
4
Accepted by SEC
29 Oct 2026, 16:54:50 UTC
Prior SEC filing
07 Oct 2026
Source filing
View source filing
Reporting owner 1 detail
Reporting owner signature
/s/ Philip C. Neisel, as attorney-in-fact
Filing notes and source

Key filing fact

Oscar K. Brown filed Form 4 for Western Midstream Partners, LP (WES) on 29 Oct 2026.

Key facts

  • This page summarizes Oscar K. Brown's Form 4 filing for Western Midstream Partners, LP (WES).
  • 3 reported transactions and 7 derivative rows are listed below.
  • Accepted by SEC: 29 Oct 2026, 16:54.

Change

  • Previous filing in this sequence was filed on 07 Oct 2026.
  • Current net transaction value: $0.

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
29 Oct 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
Shares
+52,659
Change %
+62%
Price
$0.000000*
Shares after
138,099
Date
28 Oct 2026
Ownership
Direct
WES transaction

Common Units representing limited partner interests

Tax liability

Transaction value
Shares
-23,039
Change %
-17%
Price
$45.03*
Shares after
115,060
Date
28 Oct 2026
Ownership
Direct

Reported derivative securities

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

WES transaction Derivative

2024 Phantom Units

Options Exercise

Transaction value
Shares
-52,659
Change %
-50%
Price
$0.000000*
Shares after
52,659
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
52,659
Exercise price
Footnotes
F1, F2
WES holding Derivative

2025 Phantom Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
48,041
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
48,041
Exercise price
Footnotes
F1, F3
WES holding Derivative

2026 Phantom Units

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
94,451
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
94,451
Exercise price
Footnotes
F1, F3
WES holding Derivative

2025 Performance Unit-ROA

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
36,032
Date
28 Oct 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-TUR

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
36,032
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
36,032
Exercise price
Footnotes
F4
WES holding Derivative

2026 Performance Unit - ROA

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
47,226
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
47,226
Exercise price
Footnotes
F5
WES holding Derivative

2026 Performance Unit - TUR

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after
47,226
Date
28 Oct 2026
Ownership
Direct
Underlying class
Common Units representing limited partner interests
Underlying amount
47,226
Exercise price
Footnotes
F5
* 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 the cash equivalent) based upon the achievement of pre-established performance metrics over a 3-year performance period.

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