ALPS Advisors and Alerian MLP ETF disclose WES stakes (ALPS advises funds)

Rhea-AI Filing Summary

ALPS Advisors, Inc. filed an amended Schedule 13G disclosing beneficial ownership positions in Western Midstream Partners LP common units on behalf of funds it advises, including the Alerian MLP ETF. ALPS Advisors reports shared voting and dispositive power over 36,629,600 units (8.87%).

The Alerian MLP ETF is shown with shared voting and dispositive power over 36,093,217 units (8.74%). The filing includes a standard disclaimer that the reported securities are owned by the funds and that ALPS Advisors disclaims beneficial ownership.

Key Figures

ALPS Advisors units: 36,629,600 shares ALPS Advisors percent: 8.87% Alerian MLP ETF units: 36,093,217 shares +2 more

5 metrics

ALPS Advisors units 36,629,600 shares Amount beneficially owned (shared power)

ALPS Advisors percent 8.87% Percent of class

Alerian MLP ETF units 36,093,217 shares Amount beneficially owned (shared power)

Alerian MLP ETF percent 8.74% Percent of class

Signature date 07/06/2026 Filing execution date

Key Terms

Schedule 13G/A, investment adviser, shared dispositive power

3 terms

Schedule 13G/A regulatory

"Amended Schedule 13G disclosing beneficial ownership positions"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

investment adviser financial

"ALPS Advisors, Inc., an investment adviser registered under Section 203"

An investment adviser is a person or firm that professionally manages money and gives recommendations about buying, selling, or holding investments. Like a financial coach or guide, they have a legal duty to act in a client's best financial interest, so their advice, fees and potential conflicts can directly affect returns and risk — making their role important for investors who want informed, accountable help with portfolios.

shared dispositive power financial

"Shared power to dispose or to direct the disposition: 36,629,600"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 07/09/2026 - 12:00 PM Accepted by SEC EDGAR 07/09/2026 - 11:59 AM Learn about SEC filing dates

FAQ

What stake does ALPS Advisors report in Western Midstream (WES)?

ALPS Advisors reports shared voting and dispositive power over 36,629,600 common units, representing 8.87% of the class. The filing states these units are owned by funds advised by ALPS, and ALPS disclaims direct beneficial ownership.

How many units does Alerian MLP ETF hold in WES according to the filing?

Alerian MLP ETF is reported with shared voting and dispositive power over 36,093,217 common units, equal to 8.74% of the class. The ETF is identified as one of the funds advised by ALPS Advisors.

Does ALPS Advisors claim direct beneficial ownership of the reported WES units?

No. The filing includes a disclaimer that the securities are owned by the funds and that ALPS Advisors, acting as investment adviser, disclaims beneficial ownership of the reported units for purposes other than Section 13(d).

Who signed the amended Schedule 13G/A for these disclosures?

The amendment is signed by Matthew Sutula, Chief Compliance Officer, on behalf of ALPS Advisors, Inc. and Alerian MLP ETF, with signature dates shown as 07/06/2026.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 10)

Western Midstream Partners LP

(Name of Issuer)

Common Units Representing Limited Partner Interests

(Title of Class of Securities)

958669103

(CUSIP Number)

06/30/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 958669103

1

Names of Reporting Persons

ALPS Advisors, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

COLORADO

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 36,629,600.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 36,629,600.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

36,629,600.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.87 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

CUSIP Number(s): 958669103

1

Names of Reporting Persons

Alerian MLP ETF

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 36,093,217.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 36,093,217.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

36,093,217.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

8.74 %

12

Type of Reporting Person (See Instructions)

IV

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Western Midstream Partners LP
(b)	Address of issuer's principal executive offices: 9950 Woodloch Forest Drive, Suite 2800, The Woodlands, TX, 77380-7046
Item 2.
(a)	Name of person filing: (1) ALPS Advisors, Inc. (2) Alerian MLP ETF
(b)	Address or principal business office or, if none, residence: (1) ALPS Advisors, Inc.: 1290 Broadway, Suite 1000, Denver, CO, 80203 (2) Alerian MLP ETF: 1290 Broadway, Suite 1000, Denver, CO, 80203
(c)	Citizenship: (1) ALPS Advisors, Inc.: Colorado (2) Alerian MLP ETF: Delaware
(d)	Title of class of securities: Common Units Representing Limited Partner Interests
(e)	CUSIP No.: 958669103
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: (1) ALPS Advisors, Inc.: 36629600 (2) Alerian MLP ETF: 36093217
(b)	Percent of class: (1) ALPS Advisors, Inc.: 8.87% (2) Alerian MLP ETF: 8.74%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0
	(ii) Shared power to vote or to direct the vote: (1) ALPS Advisors, Inc.: 36629600 (2) Alerian MLP ETF: 36093217
	(iii) Sole power to dispose or to direct the disposition of: 0
	(iv) Shared power to dispose or to direct the disposition of: (1) ALPS Advisors, Inc.: 36629600 (2) Alerian MLP ETF: 36093217
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. ALPS Advisors, Inc. ("AAI"), an investment adviser registered under Section 203 of the Investment Advisors Act of 1940, furnishes investment advice to investment companies registered under the Investment Company Act of 1940 (collectively referred to as the "Funds"). In its role as investment advisor, AAI has voting and/or investment power over the securities of the Issuer that are owned by the Funds, and may be deemed to be the beneficial owner of the shares of the Issuer held by the Funds. However, all securities reported in this schedule are owned by the Funds. AAI disclaims beneficial ownership of such securities. In addition, the filing of this Schedule 13G shall not be construed as an admission that the reporting person or any of its affiliates is the beneficial owner of any securities covered by this Schedule 13G for any other purposes than Section 13(d) of the Securities Exchange Act of 1934. Alerian MLP ETF is an investment company registered under the Investment Company Act of 1940 and is one of the Funds to which AAI provides investment advice.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

ALPS Advisors, Inc.

Signature:	/s/ Matthew Sutula
Name/Title:	Matthew Sutula, Chief Compliance Officer
Date:	07/06/2026

Alerian MLP ETF

Signature:	/s/ Matthew Sutula
Name/Title:	Matthew Sutula, Chief Compliance Officer
Date:	07/06/2026