ALPS Advisors and Alerian MLP ETF Report 9.82% Stake in Western Midstream Partners LP

On April 8, 2026, ALPS Advisors, Inc. and the Alerian MLP ETF filed a Schedule 13G/A with the SEC, reporting a significant stake in Western Midstream Partners LP (WES). ALPS Advisors, Inc., acting as an investment adviser to various funds, reported beneficial ownership of 38,637,354 common units, representing a 9.82% ownership stake in the company. Specifically, the Alerian MLP ETF, one of the funds managed by ALPS Advisors, holds 38,126,346 of these units, or approximately 9.68% of the class. The filing indicates that ALPS Advisors and the Alerian MLP ETF share voting and dispositive power over these shares. This amendment (No. 9) reflects that the securities were acquired in the ordinary course of business and are not held for the purpose of influencing or changing the control of the issuer. The event triggering this filing occurred on March 31, 2026. ALPS Advisors disclaims beneficial ownership of the securities except to the extent of its investment advisory role.