Oscar K. Brown - Oct 28, 2025 Form 4 Insider Report for Western Midstream Partners, LP (WES)

Role
President & CEO, Director
Signature
/s/ Philip C. Neisel, as attorney-in-fact
Stock symbol
WES
Transactions as of
Oct 28, 2025
Transactions value $
-$803,599
Form type
4
Date filed
10/29/2025, 04:06 PM
Previous filing
Feb 21, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Brown Oscar K President & CEO, Director 9950 WOODLOCH FOREST DR., THE WOODLANDS /s/ Philip C. Neisel, as attorney-in-fact 2025-10-29 0001715126

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction WES Common Units representing limited partner interests Options Exercise $0 +52.7K +131.68% $0.00 92.7K Oct 28, 2025 Direct
transaction WES Common Units representing limited partner interests Tax liability -$804K -20.7K -22.37% $38.78 71.9K Oct 28, 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction WES 2024 Phantom Units Options Exercise $0 -52.7K -33.33% $0.00 105K Oct 28, 2025 Common Units representing limited partner interests 52.7K Direct F1, F2
holding WES 2025 Phantom Units 72.1K Oct 28, 2025 Common Units representing limited partner interests 72.1K Direct F1, F3
holding WES 2025 Performance Unit-ROA 36K Oct 28, 2025 Common Units representing limited partner interests 36K Direct F4
holding WES 2025 Performance Unit-TUR 36K Oct 28, 2025 Common Units representing limited partner interests 36K Direct F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.