# EDGAR Filing Document

**Accession Number:** 0000909832
**File Stem:** 0001193125-26-255730
**Filing Date:** 2026-6
**Character Count:** 130376
**Document Hash:** b8bc5b58be1e073a1ed7de5507dab4b0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-255730.hdr.sgml**: 20260622

**ACCESSION NUMBER**: 0001193125-26-255730

**CONFORMED SUBMISSION TYPE**: S-3ASR

**PUBLIC DOCUMENT COUNT**: 20

**FILED AS OF DATE**: 20260603

**DATE AS OF CHANGE**: 20260603

**EFFECTIVENESS DATE**: 20260603

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** COSTCO WHOLESALE CORP /NEW
- **CENTRAL INDEX KEY:** 0000909832
- **STANDARD INDUSTRIAL CLASSIFICATION:** RETAIL-VARIETY STORES [5331]
- **ORGANIZATION NAME:** 07 Trade & Services
- **EIN:** 911223280
- **STATE OF INCORPORATION:** WA
- **FISCAL YEAR END:** 0830

**FILING VALUES:**
- **FORM TYPE:** S-3ASR
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-296468
- **FILM NUMBER:** 261061872

**BUSINESS ADDRESS:**
- **STREET 1:** 999 LAKE DRIVE
- **CITY:** ISSAQUAH
- **STATE:** WA
- **ZIP:** 98027-
- **BUSINESS PHONE:** 4253138100

**MAIL ADDRESS:**
- **STREET 1:** 999 LAKE DRIVE
- **CITY:** ISSAQUAH
- **STATE:** WA
- **ZIP:** 98027

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** COSTCO COMPANIES INC
- **DATE OF NAME CHANGE:** 19970401

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** PRICE/COSTCO INC
- **DATE OF NAME CHANGE:** 19930728

##### [**Table of Contents**](#toc)
**As filed with the Securities and Exchange Commission on June 3, 2026** 

**Registration No. 333-** 

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM S-3**

**REGISTRATION STATEMENT** 

***UNDER***

***THE SECURITIES ACT OF 1933***

## COSTCO WHOLESALE CORPORATION
**(Exact name of registrant as specified in its charter)** 

---

| | |
|:---|:---|
| **Washington** | **91-1223280** |
| **(State or other jurisdiction of**<br> **incorporation or organization)** | **(I.R.S. Employer**<br> **Identification Number)** |

---

**999 Lake Drive** 

**Issaquah, Washington 98027** 

**(425) 313-8100**

**(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)** 

**John Sullivan** 

**Costco Wholesale Corporation** 

**999 Lake Drive** 

**Issaquah, Washington 98027** 

**(425) 313-8100**

**(Name, address, including zip code, and telephone number, including area code, of agent for service)** 

***Copies to:***

**Andrew B. Moore** 

**Christopher Wassman** 

**Perkins Coie LLP** 

**1301 Second Avenue, Suite 4200** 

**Seattle, Washington 98101-3804** 

**(206) 359-8000**

**Approximate date of commencement of proposed sale to the public**: From time to time after this registration statement becomes effective as determined by market conditions and other factors.

If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a registration statement pursuant to General Instruction I.D. or a post-effective amendment thereto that shall become effective upon filing with the Commission pursuant to Rule 462(e) under the Securities Act, check the following box. ☒

If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.:

---

| | | | |
|:---|:---|:---|:---|
| Large accelerated filer | ☒ | Accelerated filer | ☐ |
| Non-accelerated filer | ☐ | Smaller reporting company | ☐ |
|  |  | Emerging growth company | ☐ |

---

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of Securities Act. ☐

------

##### [**Table of Contents**](#toc)
**PROSPECTUS**![LOGO](g116741g0529105040370.jpg)

**Debt Securities** 

This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission using a "shelf" registration process. This means:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• we may sell debt securities from time to time;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• we will provide a prospectus supplement each time we issue the securities; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the prospectus supplement will provide specific information about the terms of that issuance and may add, update
or change information contained in this prospectus.

We will provide the specific terms of these securities in supplements to this prospectus. You should carefully read this prospectus and the applicable prospectus supplement before you invest.

The securities may be sold directly to investors, through agents designated from time to time, or to or through underwriters or dealers. See "Plan of Distribution." If any underwriters are involved in the sale of any securities in respect of which this prospectus is being delivered, the names of the underwriters and any applicable commissions or discounts will be set forth in the applicable prospectus supplement. The net proceeds we expect to receive from the sale also will be set forth in the applicable prospectus supplement.

**Investing in our debt securities involves risks. You should consider the risk factors described in any accompanying prospectus supplement or any documents we incorporate by reference.** 

This prospectus may not be used to offer or sell any securities unless accompanied by a prospectus supplement.

**Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.** 

**The date of this prospectus is June 3, 2026.** 

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##### [**Table of Contents**](#toc)
**TABLE OF CONTENTS** 

---

| | |
|:---|:---|
|  [ABOUT THIS PROSPECTUS](#tx116741_1) | - 2 - |
|  [WHERE YOU CAN FIND ADDITIONAL INFORMATION](#tx116741_2) | - 2 - |
|  [INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE](#tx116741_3) | - 2 - |
|  [SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS](#tx116741_4) | - 3 - |
|  [THE COMPANY](#tx116741_5) | - 3 - |
|  [RISK FACTORS](#tx116741_6) | - 3 - |
|  [USE OF PROCEEDS](#tx116741_7) | - 4 - |
|  [DESCRIPTION OF DEBT SECURITIES](#tx116741_8) | - 4 - |
|  [PLAN OF DISTRIBUTION](#tx116741_9) | - 11 - |
|  [LEGAL MATTERS](#tx116741_10) | - 12 - |
|  [EXPERTS](#tx116741_11) | - 12 - |

---

- i-

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##### [**Table of Contents**](#toc)
**ABOUT THIS PROSPECTUS** 

This prospectus is part of a "shelf" registration statement on Form S-3 that we have filed with the Securities and Exchange Commission (the "SEC"). By using a shelf registration statement, we may sell the debt securities at any time and from time to time in one or more offerings. The exhibits to our registration statement contain the full text of certain contracts and other important documents we have summarized in this prospectus. Since these summaries may not contain all the information that you may find important in deciding whether to purchase the debt securities we offer, you should review the full text of these documents. The registration statement and the exhibits can be obtained from the SEC as indicated under the heading "Where You Can Find Additional Information."

This prospectus only provides you with a general description of the debt securities we may offer. Each time we sell debt securities, we will provide a prospectus supplement that contains specific information about the terms of those debt securities. The prospectus supplement may also add, update or change information contained in this prospectus and, accordingly, to the extent inconsistent, information in this prospectus is superseded by the information in the applicable prospectus supplement. You should read both this prospectus and any prospectus supplement together with the additional information described below under the heading "Where You Can Find Additional Information."

**We are not making an offer of these debt securities in any jurisdiction where the offer is not permitted. You should not assume that the information in this prospectus or a prospectus supplement is accurate as of any date other than the date on the front of the document.** 

References in this prospectus to Costco, the Company, we, us and our are to Costco Wholesale Corporation (together with its subsidiaries) unless the context otherwise provides.

**WHERE YOU CAN FIND ADDITIONAL INFORMATION** 

We file annual, quarterly and current reports and other information with the SEC. These reports and other information filed by us are also available free of charge through our website, *http://www.costco.com*. These reports and other information are also filed by us electronically with the SEC and are available at the SEC's website, *www.sec.gov*.

**INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE** 

The SEC allows us to "incorporate by reference" the information we file with it, which means that we can disclose important information to you by referring you to another document that we filed with the SEC. The information incorporated by reference is an important part of this prospectus, and information that we file later with the SEC will automatically update and supersede this information. We incorporate by reference the document listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), until we sell all of the securities (other than, in each case, documents or information deemed to have been "furnished" and not "filed" in accordance with SEC rules):

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Our Annual Report on Form 10-K for the fiscal year ended [August 31, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000101/cost-20250831.htm) ;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Our Quarterly Report on Form 10-Q for the quarterly periods ended [November 23, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000169/cost-20251123.htm) , [February 15, 2026](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983226000029/cost-20260215.htm) and [May 10, 2026](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983226000051/cost-20260510.htm) ; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• Our Current Reports on Form 8-K filed on [September 25, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000093/cost-20250925.htm) , [October 15, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000105/cost-20251015.htm) , [October 20, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000107/cost-20251014.htm) , [December 11, 2025](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983225000164/cost-20251211.htm) , [January 21, 2026](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983226000016/cost-20260115.htm) , [March 5, 2026](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983226000025/cost-20260305.htm) , and [April 15, 2026](http://www.sec.gov/Archives/edgar/data/../../../ix?doc=/Archives/edgar/data/909832/000090983226000041/cost-20260415.htm) .

You may obtain a copy of these filings at no cost by writing or telephoning us at 999 Lake Drive, Issaquah, Washington 98027, telephone (425) 313-8100, attention Investor Relations Department, or through our website, *www.costco.com*. Information contained on our website does not constitute part of this prospectus.

You should rely only on the information contained or incorporated by reference in this prospectus, any supplemental prospectus or any pricing supplement. We have not authorized anyone to provide you with any other information. We are not making an offer of these securities in any jurisdiction where the offer is not permitted. You should not assume that the information in this prospectus, any accompanying prospectus supplement, or any document incorporated by reference is accurate as of any date other than the date on the front of the document.

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##### [**Table of Contents**](#toc)
**SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS** 

This prospectus and the documents incorporated by reference contain certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. For these purposes, forward-looking statements are statements that address activities, events, conditions or developments that the Company expects or anticipates may occur in the future and may relate to such matters as net sales growth, changes in comparable sales, cannibalization of existing locations by new openings, price or fee changes, earnings performance, earnings per share, stock-based compensation expense, warehouse openings and closures, capital spending, the effect of adopting certain accounting standards, future financial reporting, financing, margins, return on invested capital, investments in technology, strategic direction, expense controls, membership fee changes, signups, and renewal rates, shopping frequency, litigation, attainment of sustainability goals, and the demand for our products and services. In some cases, forward-looking statements can be identified because they contain words such as "anticipate," "believe," "continue," "could," "estimate," "expect," "intend," "likely," "may," "might," "plan," "potential," "predict," "project," "seek," "should," "target," "will," "would," or similar expressions and the negatives of those terms. Such forward-looking statements involve risks and uncertainties that may cause actual events, results or performance to differ materially from those indicated by such statements. These risks and uncertainties include, but are not limited to, domestic and international economic conditions, including exchange rates, inflation or deflation, the effects of competition and regulation, uncertainties in the financial markets, consumer and small business spending patterns and debt levels, breaches of security or privacy of member or business information, conditions affecting the acquisition, development, ownership or use of real estate, capital spending, actions of vendors, rising costs associated with employees (generally including health-care costs and wages), workforce interruptions, energy and certain commodities, geopolitical conditions (including tariffs and global conflicts), the ability to maintain effective internal control over financial reporting, regulatory and other impacts related to environmental and social matters, public-health related factors, and other factors described in Part I, Item 1A of our most recent Annual Report on Form 10-K and our Quarterly Reports on Form 10-Q in the section entitled "Risk Factors" and as may be included from time to time in our reports filed with the SEC. Forward-looking statements speak only as of the date they are made, and the Company does not undertake to update these statements, except as required by law.

**THE COMPANY** 

Costco operates membership warehouses and e-commerce sites based on the concept that offering low prices on a limited selection of nationally-branded and private-label products in a wide range of categories will produce high sales volumes and rapid inventory turnover. When combined with the operating efficiencies achieved by volume purchasing, efficient distribution and reduced handling of merchandise in no-frills, self-service warehouse facilities, these volumes and turnover enable Costco to operate profitably at significantly lower gross margins (net sales less merchandise costs) than most other retailers.

Our principal executive office is located at 999 Lake Drive, Issaquah, Washington 98027 and our telephone number is (425) 313-8100.

**RISK FACTORS** 

Investing in the debt securities involves risks. Before making a decision to invest in the debt securities, you should carefully consider the risks described in the sections entitled "Risk Factors" in any prospectus supplement and those set forth in the documents incorporated by reference in this prospectus and any applicable prospectus supplement, as well as other information in this prospectus and any applicable prospectus supplement. Each of the risks described in these sections and documents could materially and adversely affect our business, financial condition, results of operations and prospects, and could result in a loss of your investment. Additional risks and uncertainties not known to us or that we deem immaterial may also impair our business, financial condition, results of operations and prospects.

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##### [**Table of Contents**](#toc)
**USE OF PROCEEDS** 

Unless otherwise specified in the applicable prospectus supplement, we intend to use the net proceeds from the sale of the debt securities for general corporate purposes. Examples of general corporate purposes include additions to working capital, repayment of existing debt, repurchase of common stock, and expansion of warehouse, manufacturing and distribution facilities.

**DESCRIPTION OF DEBT SECURITIES** 

The following description of the debt securities sets forth the material terms and provisions of the debt securities to which any prospectus supplement may relate. The particular terms of the debt securities offered by any prospectus supplement (the "Offered Debt Securities") and the extent, if any, to which these general provisions may apply to the Offered Debt Securities, will be described in the prospectus supplement relating to the Offered Debt Securities. Accordingly, for a description of the terms of a particular issue of debt securities, reference must be made to both the prospectus supplement relating thereto and to the following description.

The debt securities will be our general obligations. The debt securities will be issued under a First Supplemental Indenture dated as of March 20, 2002, between Costco and U.S. Bank Trust Company, National Association, as trustee, which we refer to as the "supplemental indenture," supplement to a Senior Debt Securities Indenture dated as of October 26, 2001, between Costco and the trustee, which we refer to together with the supplemental indenture as the "indenture."

We have summarized selected provisions of the indenture below. The indenture has been incorporated by reference as an exhibit into the registration statement of which this prospectus is a part and you should read the indenture for provisions that may be important to you. Accordingly, the following summary is qualified in its entirety by reference to the provisions of the indenture. Unless otherwise specified, capitalized terms used in this summary have the meanings specified in the indenture.

**General** 

The indenture does not limit the aggregate principal amount of debt securities which may be issued under the indenture and provides that debt securities may be issued from time to time in one or more series. The indenture does not limit the amount of other indebtedness or debt securities.

Unless otherwise provided in a prospectus supplement, the debt securities will be our unsecured obligations. The debt securities will rank equally with all other unsecured and unsubordinated indebtedness of ours.

The debt securities may be issued in fully registered form without coupons ("registered securities") or in the form of one or more global securities (each a "Global Security"). Registered securities that are book-entry securities will be issued as registered Global Securities. Unless otherwise provided in the prospectus supplement, the debt securities will be only registered securities. The debt securities will be issued, unless otherwise provided in the prospectus supplement, in denominations of $1,000 or an integral multiple thereof for registered securities.

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##### [**Table of Contents**](#toc)
The prospectus supplement relating to the particular debt securities offered thereby will describe the following terms of the Offered Debt Securities:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) the title of the Offered Debt Securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) the percentage of principal amount at which the Offered Debt Securities will be issued;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) any limit on the aggregate principal amount of the Offered Debt Securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) the date or dates on which the Offered Debt Securities will mature and the amount or amounts of any installment
of principal payable on such dates;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) the rate or rates (which may be fixed or variable) per year at which the Offered Debt Securities will bear
interest, if any, or the method of determining the rate or rates and the date or dates from which interest, if any, will accrue;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) the date or dates on which interest, if any, on the Offered Debt Securities will be payable and the regular
record dates for the payment dates;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) the terms of any sinking fund and the obligation, if any, of ours to redeem or purchase the Offered Debt
Securities pursuant to any sinking fund or analogous provisions;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(8) the portion of the principal amount of Offered Debt Securities that is payable upon declaration of acceleration
of the maturity of the Offered Debt Securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(9) whether the Offered Debt Securities will be issued in registered form without coupons, including temporary and
definitive global form, and the circumstances, if any, upon which the Offered Debt Securities may be exchanged for Offered Debt Securities issued in a different form;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(10) whether the Offered Debt Securities are to be issued in whole or in part in the form of one or more Global
Securities and, if so, the identity of the depositary for the Global Security or Securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(11) whether and under what circumstances we will pay additional amounts to any holder of Offered Debt Securities
who is not a United States person in respect of any tax, assessment or other governmental charge required to be withheld or deducted and, if so, whether we will have the option to redeem rather than pay any additional amounts;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(12) the place or places, if any, in addition to or instead of the corporate trust office of the trustee, where the
principal, premium and interest with respect to the Offered Debt Securities shall be payable;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(13) if the amount of principal, premium or interest with respect to the debt securities of the series may be
determined with reference to an index or pursuant to a formula, the manner in which these amounts will be determined;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(14) any authenticating or paying agent, transfer agent or registrar;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(15) the applicability of, and any addition to or change in, the covenants and definitions then set forth in the
indenture or in the terms then set forth in the indenture relating to permitted consolidations, mergers, or sales of assets; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(16) certain other terms, including our ability to satisfy and discharge our obligations under an indenture with
respect to the Offered Debt Securities.

No service charge will be made for any transfer or exchange of the debt securities except for any tax or other governmental charge.

Debt securities of a single series may be issued at various times with different maturity dates and different principal repayment provisions, may bear interest at different rates, may be issued at or above par or with an original issue discount, and may otherwise vary, all as provided in the indenture. The prospectus supplement for any debt securities issued above par or with an original issue discount will state any applicable material federal income tax consequences and other special considerations.

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##### [**Table of Contents**](#toc)
**Exchange, Registration and Transfer** 

Registered securities (other than book-entry securities) of any series of Offered Debt Securities will be exchangeable for other registered securities of the same series and of a like aggregate principal amount and tenor of different authorized denominations.

Debt securities may be presented for exchange as provided above, and registered securities (other than book-entry securities) may be presented for registration of transfer (with the form of transfer endorsed thereon duly endorsed), at the office of the Security Registrar or at the office of any transfer agent designated by us for this purpose with respect to any series of debt securities and referred to in the prospectus supplement. No service charge will be charged for the transfer, but any tax or other governmental charge must be paid. Such transfer or exchange will be effected upon the Security Registrar or such transfer agent, as the case may be, being satisfied with the documents of title and identity of the person making the request. If a prospectus supplement refers to any transfer agents (in addition to the Security Registrar) initially designated by us with respect to any series of debt securities, we may at any time rescind the designation of any such transfer agent or approve a change in the location through which any such transfer agent acts, except that, if debt securities of a series are issuable solely as registered securities, we will be required to maintain a transfer agent in each Place of Payment for such series. We may at any time designate additional transfer agents with respect to any series of debt securities.

In the event of any redemption in part, we will not be required to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• issue, register the transfer of or exchange debt securities of any series during a period beginning at the
opening of business 15 days before any selection of debt securities of that series to be redeemed and ending at the close of business on, if debt securities of the series are issuable only as registered securities, the day of mailing of the
relevant notice of redemption; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• register the transfer of or exchange any registered security, or portion thereof, called for redemption, except
the unredeemed portion of any registered security being redeemed in part.

For a discussion of restrictions on the exchange, registration and transfer of Global Securities, see "Global Securities."

**Payment and Paying Agents** 

Unless otherwise provided in the prospectus supplement, payment of principal of (and premium, if any) and interest, if any, on registered securities will be made in U.S. dollars at the office of such Paying Agent or Paying

Agents as we may designate from time to time, except that at our option payment of any interest may be made by check mailed to the address of the Person entitled thereto as that address shall appear in the Security Register. Unless otherwise provided in a prospectus supplement, payment of any installment of interest on registered securities will be made to the Person in whose name the registered security is registered at the close of business on the Regular Record Date for the interest.

Unless otherwise provided in a prospectus supplement, the Corporate Trust Office of the trustee will be designated as our sole Paying Agent for payments with respect to Offered Debt Securities that are issuable solely as registered securities. Any Paying Agents outside the United States and any other Paying Agents in the United States initially designated by us for the Offered Debt Securities will be named in a prospectus supplement. We may at any time designate additional Paying Agents or rescind the designation of any Paying Agent or approve a change in the office through which any Paying Agent acts, except that, if debt securities of a series are issuable solely as registered securities, we will be required to maintain a Paying Agent in each Place of Payment for that series.

All moneys paid by us to a Paying Agent for the payment of principal of (and premium, if any) or interest, if any, on any debt security or coupon that remain unclaimed at the end of two years after such principal, premium or interest shall have become due and payable will be repaid to us and the holder of such debt security or coupon will thereafter look only to us for payment thereof.

**Global Securities** 

The debt securities of a series may be issued in whole or in part as one or more Global Securities that will be deposited with, or on behalf of, a depositary located in the United States (a "U.S. Depositary") or a common depositary located outside the United States (a "Common Depositary") identified in the prospectus supplement relating to the series. Global Securities will be issued in registered form, in either temporary or definitive form.

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##### [**Table of Contents**](#toc)
The specific terms of the depositary arrangement with respect to any debt securities of a series will be described in the prospectus supplement relating to the series. We anticipate that the following provisions will apply to all depositary arrangements with a U.S. Depositary or Common Depositary.

**Book-Entry Securities** 

Unless otherwise specified in a prospectus supplement, debt securities which are to be represented by a Global Security to be deposited with or on behalf of a U.S. Depositary will be represented by a Global Security registered in the name of the depositary or its nominee. Upon the issuance of a Global Security in registered form, the U.S. Depositary for the Global Security will credit, on its book-entry registration and transfer system, the respective principal amounts of the debt securities represented by the Global Security to the accounts of institutions that have accounts with the depositary or its nominee ("participants"). The accounts to be credited shall be designated by the underwriters or agents of the debt securities or by us, if the debt securities are offered and sold directly by us. Ownership of beneficial interests in the Global Securities will be limited to participants or persons that may hold interests through participants. Ownership of beneficial interests in the Global Securities will be shown on, and the transfer of that ownership will be effected only through, records maintained by the U.S. Depositary or its nominee for the Global Security or by participants or persons that hold through participants. The laws of some jurisdictions require that certain purchasers of securities take physical delivery of the securities in definitive form. These limits and laws may impair the ability to transfer beneficial interests in a Global Security.

So long as the U.S. Depositary for a Global Security in registered form, or its nominee, is the registered owner of the Global Security, the depositary or nominee, as the case may be, will be considered the sole owner or holder of the debt securities represented by the Global Security for all purposes under the indenture governing the debt securities. Except as set forth below, owners of beneficial interests in these Global Securities will not be entitled to have debt securities of the series represented by the Global Security registered in their names, will not receive or be entitled to receive physical delivery of debt securities of the series in definitive form and will not be considered the owners or holders thereof under the indenture.

Payment of principal of (and premium, if any) and interest, if any, on debt securities registered in the name of or held by a U.S. Depositary or its nominee will be made to the U.S. Depositary or its nominee, as the case may be, as the registered owner or the holder of the Global Security representing the debt securities. Neither we nor any trustee or Paying Agent nor the Security Registrar for the debt securities will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests in a Global Security for the debt securities or for maintaining, supervising or reviewing any records relating to the beneficial ownership interests.

We expect that the U.S. Depositary for debt securities of a series, upon receipt of any payment of principal of (and premium, if any) or interest on permanent Global Securities, will credit participants' accounts on the date the payment is payable in accordance with their respective beneficial interests in the principal amount of the Global Securities as shown on the records of the Depositary. We also expect that payments by participants to owners of beneficial interests in the Global Security held through the participants will be governed by standing instructions and customary practices, as is now the case with securities held for the accounts of customers registered in "street name," and will be the responsibility of the participants.

Unless and until it is exchanged in whole for debt securities in definitive form, a Global Security may not be transferred except as a whole by the U.S. Depositary for the Global Security to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any nominee to a successor of the Depositary or a nominee of the successor. If a U.S. Depositary for debt securities in registered form is at any time unwilling or unable to continue as depositary and a successor depositary is not appointed by us within 90 days, we will issue debt securities in definitive registered form in exchange for the Global Security or Global Securities representing the debt securities. In addition, we may at any time and in our sole discretion determine not to have any debt securities in registered form represented by one or more Global Securities and, in such event, will issue debt securities in definitive registered form in exchange for the Global Security or Global Securities representing the debt securities. In this instance, an owner of a beneficial interest in a Global Security will be entitled to physical delivery in definitive form of debt securities of the series represented by the Global Security equal in principal amount to the beneficial interest and to have the debt securities registered in the name of the owner of the beneficial interest.

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**Absence of Restrictive Covenants** 

We are not restricted by the indenture from paying dividends or from incurring, assuming or becoming liable for any type of debt or other obligations or from creating liens on our property for any purpose. The indenture does not require the maintenance of any financial ratios or specified levels of net worth or liquidity. The indenture does not contain provisions which afford holders of the debt securities protection in the event of a highly leveraged transaction involving us.

**Merger and Consolidation** 

The indenture provides that we, without the consent of the holders of any of the outstanding debt securities, may consolidate with or merge into any other corporation or transfer or lease our properties and assets substantially as an entirety to any Person or may permit any corporation to merge into us, provided that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the successor is a corporation organized under the laws of any domestic jurisdiction;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the successor, if other than us, assumes our obligations under the indenture and the debt securities issued
thereunder;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• immediately after giving effect to the transaction, no Event of Default and no event which, after notice or lapse
of time or both, would become an Event of Default, shall have occurred and be continuing; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• certain other conditions are met.

The indenture provides that, upon any consolidation or merger or transfer or lease of our properties and assets substantially as an entirety in accordance with the preceding paragraph, the successor corporation formed by the consolidation or into which we are merged or to which the transfer or lease is made shall be substituted for us with the same effect as if the successor corporation had been named as us. Thereafter, we shall be relieved of the performance and observance of all obligations and covenants of the indenture and the debt securities, including but not limited to the obligation to make payment of the principal of (and premium, if any) and interest, if any, on all the debt securities then outstanding, and we may thereupon or any time thereafter be liquidated and dissolved.

**Satisfaction and Discharge** 

Unless a prospectus supplement provides otherwise, we will be discharged from our obligations under the outstanding debt securities of a series upon satisfaction of the following conditions:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• we have irrevocably deposited with the trustee either money, or U.S. government obligations together with the
predetermined and certain income to accrue thereon without consideration of any reinvestment thereof, or a combination of the foregoing which (in the written opinion of independent public accountants delivered to the trustee) will be sufficient to
pay and discharge the entire principal of (and premium, if any), and interest, if any, to Stated Maturity or any redemption date on, the outstanding debt securities of the series;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• we have paid or caused to be paid all other sums payable with respect to the outstanding debt securities of the
series;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the trustee has received an Officers' Certificate and an Opinion of Counsel each stating that all
conditions precedent have been complied with; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the trustee has received (a) a ruling directed to us and the trustee from the United States Internal Revenue
Service to the effect that the holders of the debt securities of the series will not recognize income, gain or loss for federal income tax purposes as a result of our exercise of our option to discharge our obligations under the indenture with
respect to the series and will be subject to federal income tax on the same amount and in the same manner and at the same times as would have been the case if such deposit and discharge had not occurred or (b) an opinion of tax counsel to the
same effect as the ruling described in clause (a) above and based upon a change in law.

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Upon discharge in the manner described above, we will be deemed to have satisfied all the obligations under the indenture, except for obligations with respect to registration of transfer and exchange of the debt securities of such series, and the rights of the holders to receive from deposited funds payment of the principal of (and premium, if any) and interest, if any, on the debt securities of the series.

**Modification of the Indenture** 

The indenture provides that we and the trustee thereunder may, without the consent of any holders of debt securities, enter into supplemental indentures for the purposes, among other things, of adding to our covenants, adding any additional Events of Default, establishing the form or terms of debt securities or curing ambiguities or inconsistencies in the indenture or making other provisions; provided this action shall not adversely affect the interests of the holders of any series of debt securities in any material respect.

The indenture contains provisions permitting us, with the consent of the holders of not less than a majority in principal amount of the outstanding debt securities of all affected series (acting as one class), to execute supplemental indentures adding any provisions to or changing or eliminating any of the provisions of the indenture or modifying the rights of the holders of the debt securities of such series, except that no supplemental indenture may, without the consent of the holders of all the outstanding debt securities affected thereby, among other things:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) change the maturity of the principal of, or any installment of principal of or interest on, any of the debt
securities;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) reduce the principal amount thereof (or any premium thereon) or the rate of interest, if any, thereon;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) reduce the amount of the principal of Original Issue Discount Securities payable on any acceleration of
maturity;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) change our obligation to maintain an office or agency in the places and for the purposes required by such
indenture;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) impair the right to institute suit for the enforcement of any such payment on or after the applicable maturity
date;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6) reduce the percentage in principal amount of the outstanding debt securities of any series, the consent of the
holders of which is required for any such supplemental indenture or for any waiver of compliance with certain provisions of, or of certain defaults under, the indenture; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(7) with certain exceptions, to modify the provisions for the waiver of certain defaults and any of the foregoing
provisions.

**Events of Default** 

An Event of Default in respect of any series of debt securities (unless it is either inapplicable to a particular series or has been modified or deleted with respect to any particular series) is defined in each indenture to be:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• failure to pay interest on the series of debt securities for 30 days after payment is due;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• failure to pay the principal of (or premium, if any) on the series of debt securities when due;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• failure to perform any other covenant in the indenture that applies to the series of debt securities for
90 days after we have received written notice of the failure to perform in the manner specified in the indenture;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• an event of default under any mortgage, indenture (including the indenture) or other instrument under which any
debt of Costco Wholesale Corporation or a Consolidated Subsidiary shall be outstanding, which default shall have resulted in the acceleration of such debt in excess of $25,000,000 in aggregate principal amount, and the acceleration shall not have
been rescinded or such debt discharged within a period of 30 days after notice;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• certain events of bankruptcy, insolvency or reorganization; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• any other event of default provided for in the series of debt securities.

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"Consolidated Subsidiary" is defined in the indenture as every Subsidiary which does not transact any substantial portion of its business or regularly maintain any substantial portion of its operating assets outside the United States or Canada other than (a) a Subsidiary acquired or organized after the date of the indenture which, prior to the date of acquisition or organization, shall have been classified by resolution of the Board of Directors or Executive Committee of the Board of Directors of Costco Wholesale Corporation as an Unconsolidated Subsidiary unless and until the Board of Directors or Executive Committee of the Board of Directors of Costco Wholesale Corporation shall by resolution reclassify such Subsidiary as a Consolidated Subsidiary; and (b) any Subsidiary of an Unconsolidated Subsidiary; provided, however, that an Unconsolidated Subsidiary shall not be a successor, directly or indirectly, to any Consolidated Subsidiary.

If an Event of Default shall have happened and be continuing, either the trustee thereunder or the holders of not less than 25% in principal amount of the outstanding debt securities of the series may declare the principal of all of the outstanding notes to be immediately due and payable.

The indenture provides that the holders of not less than a majority in principal amount of the outstanding debt securities of any series may direct the time, method and place of conducting any proceeding for any remedy available to the trustee thereunder, or exercising any trust or power conferred on the trustee, with respect to the debt securities of the series; provided that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• such direction shall not be in conflict with any rule of law or with the indenture;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the trustee may take any other action deemed proper that is not inconsistent with such direction; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the trustee shall not determine that the action so directed would be unjustly prejudicial to the holders of debt
securities of such series not taking part in such direction.

The indenture provides that the holders of not less than a majority in principal amount of the outstanding debt securities of any series may on behalf of the holders of all of the outstanding debt securities of such series waive any past default under such indenture with respect to such series and its consequences, except a default (1) in the payment of the principal of (or premium, if any) or interest, if any, on any of the debt securities of such series or (2) in respect of a covenant or provision of such indenture which, under the terms of such indenture, cannot be modified or amended without the consent of the holders of all of the outstanding debt securities of such series affected thereby.

The indenture contains provisions entitling the trustee thereunder, subject to the duty of the trustee during an Event of Default in respect of any series of debt securities to act with the required standard of care, to be indemnified by the holders of the debt securities of such series before proceeding to exercise any right or power under the indenture at the request of the holders of the debt securities of such series.

The indenture provides that the trustee will, within 90 days after the occurrence of a default in respect of any series of debt securities, give to the holders of the debt securities of such series notice of all uncured and unwaived defaults known to it; provided, however, that, except in the case of a default in the payment of the principal of (or premium, if any) or any interest on, or any sinking fund installment with respect to, any of the debt securities of such series, the trustee will be protected in withholding the notice if it in good faith determines that the withholding of the notice is in the interests of the holders of the debt securities of such series; and provided, further, that the notice shall not be given until at least 30 days after the occurrence of an Event of Default regarding the performance of any covenant of ours under the indenture other than for the payment of the principal of (or premium, if any) or any interest on, or any sinking fund installment with respect to, any of the debt securities of such series. The term default for the purpose of this provision only means any event that is, or after notice or lapse of time, or both, would become, an Event of Default with respect to the debt securities of such series.

We will be required to furnish annually to the trustee a certificate as to compliance with all conditions and covenants under the indenture.

**Notices** 

Notices to holders of registered securities will be given by mail to the addresses of the holders as they appear in the Security Register.

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**Title** 

We, the appropriate trustee and any agent of ours or the trustee may treat the registered owner of any registered security (including registered securities in global registered form) as the absolute owner thereof (whether or not the debt security or coupon shall be overdue and notwithstanding any notice to the contrary) for the purpose of making payment and for all other purposes.

**Governing Law** 

New York law will govern the indenture and the debt securities.

**PLAN OF DISTRIBUTION** 

We may sell the securities being offered hereby:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• directly to purchasers,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• through agents,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• through dealers,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• through underwriters, or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• through a combination of any of the above methods of sale.

The distribution of the securities may be effected from time to time in one or more transactions either

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• at a fixed price or prices, which may be changed,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• at market prices prevailing at the time of sale,

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• at prices related to such prevailing market prices, or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• at negotiated prices.

Offers to purchase the securities may be solicited directly by us or by agents designated by us from time to time. Any agent, which may be deemed to be an underwriter as that term is defined in the Securities Act, involved in the offer or sale of the debt securities in respect of which this prospectus is delivered will be named, and any commissions payable by us to the agent will be set forth in the prospectus supplement relating to the offering of the securities. Unless otherwise indicated in the applicable prospectus supplement, any agent will be acting on a best efforts basis for the period of its appointment.

If a dealer is utilized in the sale of the securities in respect of which this prospectus is delivered, we will sell the securities to the dealer, as principal. The dealer, which may be deemed to be an underwriter as that term is defined in the Securities Act, may then resell the securities to the public at varying prices to be determined by the dealer at the time of resale. Dealer trading may take place in certain of the securities, including securities not listed on any securities exchange.

If an underwriter or underwriters are utilized in the sale, we will execute an underwriting agreement with the underwriters at the time of sale to them and the names of the underwriters will be set forth in the applicable prospectus supplement, which will be used by the underwriters to make resales of the securities in respect of which this prospectus is delivered to the public. The obligations of underwriters to purchase securities will be subject to certain conditions precedent and the underwriters will be obligated to purchase all of the securities of a series if any are purchased.

Underwriters, dealers, agents and other persons may be entitled, under agreements that may be entered into with us, to indemnification against certain civil liabilities, including liabilities under the Securities Act, or to contribution with respect to payments that they may be required to make in respect thereof. Underwriters, dealers and agents may engage in transactions with, or perform services for, us in the ordinary course of business.

Except as indicated in the applicable prospectus supplement, the debt securities are not expected to be listed on a securities exchange, and any underwriters or dealers will not be obligated to make a market in debt securities. We cannot predict the activity or liquidity of any trading in the debt securities.

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**LEGAL MATTERS** 

The legality of the debt securities offered by this prospectus will be passed upon by Perkins Coie LLP. If the securities are being distributed in an underwritten offering, certain legal matters will be passed upon for the underwriters by counsel identified in the related prospectus supplement.

**EXPERTS** 

The consolidated financial statements of Costco Wholesale Corporation as of August 31, 2025 and September 1, 2024, and for each of the fiscal years in the three-year period ended August 31, 2025, and management's assessment of the effectiveness of internal control over financial reporting as of August 31, 2025 have been incorporated by reference herein in reliance upon the reports of KPMG LLP, independent registered public accounting firm, incorporated by reference herein, and upon the authority of said firm as experts in accounting and auditing.

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**PART II** 

**INFORMATION NOT REQUIRED IN PROSPECTUS** 

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| | |
|:---|:---|
| **ITEM 14.** | **Other Expenses of Issuance and Distribution**  |

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The following table sets forth the estimated costs and expenses, other than underwriting discounts, payable by the registrant in connection with the offering of the securities being registered.

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| | |
|:---|:---|
|  | **Amount**<br>**to be Paid** |
|  SEC registration fee | $nan \* |
|  Blue Sky expenses | \* |
|  FINRA filing fees | \* |
|  Transfer agent and registrar fee | \* |
|  Printing costs | \* |
|  Legal fees and expenses | \* |
|  Trustee fees and expenses | \* |
|  Accounting expenses | \* |
|  Miscellaneous costs | \* |
|  Total | $\* |

---

\* In accordance with Rules 456(b) and 457(r) of the Securities Act, we are deferring payment of the registration fee for the securities offered.

\*\* To be provided as applicable by amendment or in a filing with the SEC pursuant to the Exchange Act, and incorporated herein by reference, or reflected in the applicable prospectus supplement.

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| | |
|:---|:---|
| **ITEM 15.** | **Indemnification of Directors and Officers**  |

---

Washington law provides that directors of a corporation shall not be personally liable for reasonable expenses incurred in the wholly successful defense of a proceeding to which the director was a party because of being a director. Washington law provides further that directors may be indemnified against liability incurred in a proceeding to which they are a party because of being a director so long as:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the director acted in good faith;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• the director reasonably believed, in the case of conduct in the director's official capacity, that his or
her conduct was in the corporation's best interests or, in all other cases, that his or her conduct was not opposed to the best interests of the corporation; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• in the case of a criminal proceeding, the director had no reasonable cause to believe his or her conduct was
unlawful.

Directors generally may not, however, be indemnified:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• in connection with a proceeding by or in the right of the corporation in which the director was adjudged liable
to the corporation;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• in connection with any other proceeding in which the director was adjudged liable for receiving improper personal
benefit;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• for acts or omissions of the director that involve intentional misconduct or knowing violation of law; or

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;• for unlawful distributions to shareholders

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Our articles of incorporation, as amended, and our bylaws, as amended, provide that we will indemnify our directors to the fullest extent permitted by law. Our bylaws, as amended, also permit us to secure insurance, at the Company's expense, on behalf of any officer or director for any expense, liability or loss arising out of his or her actions in connection with his or her services to us, regardless of whether the Washington Business Corporation Act would permit indemnification of such expense, liability or loss.

We have entered into agreements to indemnify our directors and certain of our officers to the fullest extent allowed under Washington law. These agreements provide, among other things, that we will indemnify our directors and certain of our officers for losses, claims, damages, liabilities or expenses (including attorneys' fees, judgments, fines, penalties, settlements, and other expenses incurred in connection with an indemnifiable proceeding) that the individual party became legally obligated to pay in connection with any claim made by reason of his or her conduct as director, officer, employee or agent of the Company, including any action taken while serving in such a capacity for another enterprise at the Company's request. We have also obtained directors' and officers' liability insurance.

The indemnification provisions in our articles of incorporation, as amended, our bylaws, as amended, and any indemnity agreements we may enter into with our directors and officers may be sufficiently broad to permit indemnification of our directors and officers for liabilities arising under the Securities Act.

Any underwriting agreement that has been or will be filed as an exhibit hereto or incorporated by reference herein contains or will contain provisions whereby the underwriter or underwriters agree to indemnify us, our directors and certain officers and other persons or whereby we agree to indemnify the underwriter or underwriters and its agents.

Reference is made to Item 17 for our undertakings with respect to indemnification for liabilities under the Securities Act.

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| | |
|:---|:---|
| **ITEM 16.** | **Exhibits**  |

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| | |
|:---|:---|
| **Exhibit**<br> **Number** | **Description** |
| 1.1† | Form of Underwriting Agreement with respect to Debt Securities. |
| 4.1† | Form of Senior Debt Security. |
| 4.2 | Form of Senior Debt Securities Indenture between Costco Wholesale Corporation and U.S. Bank Trust Company, National Association, as Trustee, dated as of October 26, 2001 (incorporated by reference to Exhibits [4.2](http://www.sec.gov/Archives/edgar/data/909832/000091205701536347/a2060648zex-4_2.htm) and [4.3](http://www.sec.gov/Archives/edgar/data/909832/000091205701536347/a2060648zex-4_3.htm) to the Company's Registration Statement on Form S-3 filed on October 23, 2001, File No. 333-72122). |
| 4.3 | First Supplemental Indenture between Costco Wholesale Corporation and U.S. Bank Trust Company, National Association, as Trustee, dated as of March 20, 2002 (incorporated by reference to Exhibits [4.1](http://www.sec.gov/Archives/edgar/data/909832/000090730302000061/exh41to8k.txt) and [4.2](http://www.sec.gov/Archives/edgar/data/909832/000090730302000061/exh42to8k.txt) to the Company's Current Report on Form 8-K filed on March 25, 2002). |
| 4.4 | [Articles of Incorporation of the Registrant, as amended (incorporated by reference to Exhibit 3.1 on the Company's Annual Report on Form 10-K filed on October 5, 2022).](http://www.sec.gov/Archives/edgar/data/909832/000090983222000021/costex3110k082822.htm) |
| 4.5 | [Bylaws of the Registrant, as amended (incorporated by reference to Exhibit 3.2 on the Company's Current Report on Form 8-K filed on September 20, 2024).](http://www.sec.gov/Archives/edgar/data/909832/000090983224000039/costex328-k91624.htm) |
| 5.1 | [Opinion of Perkins Coie LLP as to the legality of the securities being registered.](d116741dex51.htm) |
| 23.1 | [Consent of KPMG LLP, Independent Registered Public Accounting Firm.](d116741dex231.htm) |
| 23.2 | [Consent of Perkins Coie LLP (contained in Exhibit 5.1).](d116741dex51.htm) |
| 24.1 | [Powers of Attorney (see page II-5).](#sig) |
| 25.1 | [Form T-1 Statement of Eligibility of Trustee.](d116741dex251.htm) |
| 107 | [Filing Fee Table.](d116741dexfilingfees.htm) |

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† To be filed as an exhibit to a Current Report on Form 8-K and
incorporated by reference or by post-effective amendment.

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| | |
|:---|:---|
| **ITEM 17.** | **Undertakings**  |

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The registrant hereby undertakes:

(a) (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Securities and Exchange Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; *Provided, however*, that paragraphs (a)(1)(i), (a)(1)(ii) and (a)(1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Securities and Exchange Commission by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial *bona fide* offering thereof.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the

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securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof; *provided, however*, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities:

The registrant undertakes that in a primary offering of securities of the registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i) Any preliminary prospectus or prospectus of the registrant relating to the offering required to be filed pursuant to Rule 424;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii) Any free writing prospectus relating to the offering prepared by or on behalf of the registrant or used or referred to by the registrant;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii) The portion of any other free writing prospectus relating to the offering containing material information about the registrant or its securities provided by or on behalf of the registrant; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iv) Any other communication that is an offer in the offering made by the registrant to the purchaser.

(b) that, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

(c) insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Act and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Act and will be governed by the final adjudication of such issue.

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##### [**Table of Contents**](#toc)
**SIGNATURES** 

Pursuant to the requirements of the Securities Act, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Issaquah, State of Washington, on this 3rd day of June, 2026.

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| | |
|:---|:---|
| **COSTCO WHOLESALE CORPORATION** | **COSTCO WHOLESALE CORPORATION** |
| By: | /s/ RON M. VACHRIS |
| Name: | Ron M. Vachris |
| Title: | Chief Executive Officer and President |

---

**POWER OF ATTORNEY** 

Each of the officers and directors of the Registrant whose signature appears below hereby constitutes and appoints Gary Millerchip and John Sullivan, and each of them severally, his or her true and lawful attorney-in-fact, for him or her in any and all capacities, to sign any amendments (including post-effective amendments) to this registration statement and any new registration statement filed under Rule 462(b) of the Securities Act and amendments thereto, and to file the same, with exhibits thereto, and any other documents in connection therewith, with the Securities and Exchange Commission, and hereby ratifies and confirms all that said attorney-in-fact, or his or her substitute, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Act, this registration statement has been signed below by the following persons in the capacities and on the dates indicated.

---

| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /S/ RON M. VACHRIS<br> Ron M. Vachris | Chief Executive Officer, President and Director (Principal Executive Officer) | June 3, 2026 |
| /S/ HAMILTON E. JAMES<br> Hamilton E. James | Chairman of the Board of Directors | June 3, 2026 |
| /S/ GARY MILLERCHIP<br> Gary Millerchip | Executive Vice President and Chief Financial Officer (Principal Financial Officer) | June 3, 2026 |
| /S/ TIFFANY M. BARBRE<br> Tiffany M. Barbre | Senior Vice President and Corporate Controller (Principal Accounting Officer) | June 3, 2026 |
| /S/ SUSAN L. DECKER<br> Susan L. Decker | Director | June 3, 2026 |
| /S/ KENNETH D. DENMAN<br> Kenneth D. Denman | Director | June 3, 2026 |
| /S/ HELENA B. FOULKES<br> Helena B. Foulkes | Director | June 3, 2026 |

---

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##### [**Table of Contents**](#toc)

---

| | | |
|:---|:---|:---|
| **Signature** | **Title** | **Date** |
| /S/ SALLY JEWELL<br> Sally Jewell | Director | June 3, 2026 |
| <br> Jeffrey S. Raikes | Director |  |
| /S/ GINA M. RAIMONDO <br> Gina M. Raimondo | Director | June 3, 2026 |
| /S/ JOHN W. STANTON<br> John W. Stanton | Director | June 3, 2026 |
| /S/ MARY (MAGGIE) A. WILDEROTTER<br> Mary (Maggie) A. Wilderotter | Director | June 3, 2026 |

---

## Exhibit 5.1

**Exhibit 5.1** 

---

| | | |
|:---|:---|:---|
| ![LOGO](g116741dsp022.jpg) | Perkins Coie LLP<br> 1301 Second Avenue<br> Suite 4200<br> Seattle, WA 98101-3804 | T. +1.206.359.8000<br> F. +1.206.359.9000<br> perkinscoie.com |

---

June 3, 2026

Costco Wholesale Corporation

999 Lake Drive

Issaquah, Washington 98027

---

| | |
|:---|:---|
| **Re:** | **Registration Statement on Form S-3 Filed by Costco Wholesale Corporation**  |

---

Ladies and Gentlemen:

We have acted as counsel to Costco Wholesale Corporation, a Washington corporation (the "***Company***"), in connection with the preparation and filing with the Securities and Exchange Commission (the "***Commission***") pursuant to the Securities Act of 1933, as amended (the "***Securities Act***"), and the rules and regulations promulgated thereunder (the "***Rules***"), of a registration statement on Form S-3 (the "***Registration Statement***") for the registration of the sale from time to time of debt securities of the Company (the "***Debt Securities***").

The Company has informed us that the Debt Securities will be sold or delivered on a delayed or continuous basis from time to time as set forth in the Registration Statement (and any amendments thereto), the prospectus contained therein and any prospectus supplement. We understand that prior to the sale of any Debt Securities under the Registration Statement, the Company will afford us an opportunity to review the operative documents pursuant to which the Debt Securities are to be sold and will file any applicable amendment to the Registration Statement (which may include as an exhibit an amendment to this opinion) or prospectus supplement as we may reasonably consider necessary or appropriate by reason of the terms of the sale of the Debt Securities.

Except as otherwise set forth in any applicable amendment to the Registration Statement or prospectus supplement, any Debt Securities will be issued in one or more series pursuant to a First Supplemental Indenture dated as of March 20, 2002, between the Company and U.S. Bank Trust Company, National Association (the "***Debt Trustee***"), as trustee (the "***First Supplemental Indenture***") to the Senior Debt Securities Indenture dated as of October 26, 2001 (together with the First Supplemental Indenture, the "***Indenture***"). The Indenture has been incorporated by reference as an exhibit into the Registration Statement.

As part of the corporate actions taken and to be taken in connection with the issuance and sale of the Debt Securities (the "***corporate proceedings***"), the Company has informed us that the Company's Board of Directors (the "***Board***"), a committee thereof or certain authorized officers of the Company as authorized by the Board, will, before the Debt Securities are issued and sold under the Registration Statement, authorize the issuance and approve the terms of any Debt Securities to be issued and sold from time to time under the Registration Statement, and such applicable corporate proceedings shall be in full force and effect at the time of any such issuance and sale.

In our capacity as counsel to the Company, we have examined the Registration Statement and such documents, records and instruments as we have deemed necessary for the purposes of this opinion. As to matters of fact material to the opinions expressed herein, we have relied on (a) information in public authority documents, and (b) information provided in certificates of officers of the Company. All opinions based on the foregoing documents and certificates are as of the date of such documents and certificates, not as of the date of this opinion letter. We have not independently verified the facts so relied on.

In such examination, we have assumed the following without investigation: (i) the authenticity of original documents and the genuineness of all signatures; (ii) the conformity to the originals of all documents submitted to us as copies; and (iii) the truth, accuracy and completeness of the information, representations and warranties contained in the records, documents, instruments and certificates we have reviewed. For purposes of the opinions expressed below, we also assume that: (a) the Registration Statement and any amendments or prospectus supplements relating

------

thereto shall have become and be effective pursuant to timely filings under the Securities Act; (b) a prospectus supplement describing each series of Debt Securities offered pursuant to the Registration Statement, to the extent required by applicable law and the Rules, will be timely filed with the Commission; (c) the Debt Trustee will have complied with the terms and conditions of the Indenture; and (d) at the time of issuance and sale of the Debt Securities, the terms of the Debt Securities, and their issuance and sale, will have been established so as not to violate any applicable law or result in a default under or a breach of any agreement or instrument binding upon the Company and so as to comply with any requirement or restriction imposed by any court or governmental body having jurisdiction over the Company.

Based on and subject to the foregoing, we are of the opinion that when (a) the applicable Debt Securities have been duly authorized by the Company; (b) the final terms of the applicable Debt Securities have been duly established and approved; and (c) the applicable Debt Securities have been duly executed by the Company and authenticated by the Debt Trustee in accordance with the Indenture and delivered to and paid for by the purchasers thereof as contemplated by the Registration Statement (including any amendments thereto), and any prospectus supplements relating thereto, and as contemplated by the applicable corporate proceedings, such Debt Securities will constitute valid and legally binding obligations of the Company, enforceable against the Company in accordance with the terms thereof.

The foregoing opinions are subject to the following exclusions and qualifications:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a) Our opinions are as of the date hereof and we have no responsibility to update this opinion for events and
circumstances occurring after the date hereof or as to facts relating to prior events that are subsequently brought to our attention. This opinion is limited to the laws, including the rules and regulations, as in effect on the date hereof, and we
disavow any undertaking to advise you of any changes in law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) We express no opinion as to enforceability of any right or obligation to the extent such right and obligation
is subject to and limited by (i) the effect of bankruptcy, insolvency, reorganization, receivership, conservatorship, arrangement, moratorium, fraudulent transfer or other laws affecting or relating to the rights of creditors generally;
(ii) rules governing the availability of specific performance, injunctive relief or other equitable remedies and general principles of equity, regardless of whether arising prior to, or after, the date hereof or considered in a proceeding in
equity or at law; or (iii) the effect of federal and state securities laws and principles of public policy on the rights of indemnity and contribution.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) We do not express any opinions herein concerning any laws other than the laws in their current forms of the
States of New York and Washington and the federal securities laws of the United States of America, and we express no opinion with respect to the laws of any other jurisdiction and expressly disclaim responsibility for advising you as to the effect,
if any, that the laws of any other jurisdiction may have on the opinions set forth herein.

We hereby consent to the filing of this opinion as an exhibit to the Registration Statement and any amendments thereto, including any and all post-effective amendments, and to the reference to our firm in the prospectus and any prospectus supplements relating thereto under the heading "Legal Matters." In giving such consent, we do not thereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act or related Rules.

---

| |
|:---|
| Very truly yours, |
| /s/ PERKINS COIE LLP |

---

## Exhibit 23.1

**Exhibit 23.1**![LOGO](g116741g0529105428174.jpg)

KPMG LLP

Suite 2800

401 Union Street

Seattle, WA 98101

**Consent of Independent Registered Public Accounting Firm** 

We consent to the use of our reports dated October 7, 2025, with respect to the consolidated financial statements of Costco Wholesale Corporation, and the effectiveness of internal control over financial reporting, incorporated herein by reference, and to the reference to our firm under the heading "Experts" in the prospectus.

/s/ KPMG LLP

Seattle, Washington

June 3, 2026

KPMG LLP, a Delaware limited liability partnership, and its subsidiaries are part of the KPMG global organization of independent member firms affiliated with KPMG International Limited, a private English company limited by guarantee.

## Exhibit 25.1

**Exhibit 25.1** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

**FORM T-1** 

**STATEMENT OF ELIGIBILITY UNDER** 

**THE TRUST INDENTURE ACT OF 1939 OF A** 

**CORPORATION DESIGNATED TO ACT AS TRUSTEE** 

**Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2)** ☐

**U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION** 

**(Exact name of Trustee as specified in its charter)** 

**91-1821036** 

**I.R.S. Employer Identification No.** 

---

| | |
|:---|:---|
| **200 South 6<sup>th</sup> Street**<br> **Minneapolis, Minnesota** | **55402** |
| **(Address of principal executive offices)** | **(Zip Code)** |

---

**Quinton M. DePompolo** 

**U.S. Bank Trust Company, National Association** 

**60 Livingston Avenue** 

**St. Paul, MN 55107** 

**(651) 466-7108** 

**(Name, address and telephone number of agent for service)** 

**COSTCO WHOLESALE CORPORATION** 

**(Issuer with respect to the Securities)** 

---

| | |
|:---|:---|
| **Washington** | **91-1223280** |
| **(State or other jurisdiction of**<br> **incorporation or organization)** | **(I.R.S. Employer**<br> **Identification No.)** |

---

---

| | |
|:---|:---|
| **999 Lake Drive**<br> **Issaquah, Washington**  | **98027** |
| **(Address of Principal Executive Offices)** | **(Zip Code)** |

---

**Debt Securities** 

**(Title of the Indenture Securities)** 

------

**<u>FORM T-1</u>**

**Item 1.** **GENERAL INFORMATION*.*** Furnish the following information as to the Trustee**.** <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;a) *Name and address of each examining or supervising authority to which it is subject.* 

Comptroller of the Currency

Washington, D.C.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;b) *Whether it is authorized to exercise corporate trust powers.* 

Yes

**Item 2.** **AFFILIATIONS WITH THE OBLIGOR.** *If the obligor is an affiliate of the Trustee, describe each such affiliation.* <br>

None

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| | |
|:---|:---|
| **Items 3-15** | *Items 3-15 are not applicable because to the best of the Trustee's knowledge, the obligor is not in default under any Indenture for which the Trustee acts as Trustee.*  |

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**Item 16.** **LIST OF EXHIBITS:** *List below all exhibits filed as a part of this statement of eligibility and qualification.* <br>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. A copy of the Articles of Association of the Trustee, attached as Exhibit 1.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. A copy of the certificate of authority of the Trustee to commence business, attached as Exhibit 2.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3. A copy of the authorization of the Trustee to exercise corporate trust powers, included as Exhibit 2.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4. A copy of the existing bylaws of the Trustee, attached as Exhibit 4.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5. A copy of each Indenture referred to in Item 4. Not applicable.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6. The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, attached as
Exhibit 6.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7. Report of Condition of the Trustee as of March 31, 2026, published pursuant to law or the requirements of
its supervising or examining authority, attached as Exhibit 7.

------

**SIGNATURE** 

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the Trustee, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility and qualification to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of St. Paul, State of Minnesota on the 21st of May, 2026.

---

| | |
|:---|:---|
| By: | /s/ Quinton M. DePompolo |
|  | Quinton M. DePompolo |
|  | Vice President |

---

------

**<u>Exhibit 1</u>**

**ARTICLES OF ASSOCIATION** 

**OF** 

**U. S. BANK TRUST COMPANY, NATIONAL ASSOCIATION** 

For the purpose of organizing an association (the "Association") to perform any lawful activities of national banks, the undersigned enter into the following Articles of Association:

**FIRST.** The title of this Association shall be U. S. Bank Trust Company, National Association.

**SECOND.** The main office of the Association shall be in the city of Portland, county of Multnomah, state of Oregon. The business of the Association will be limited to fiduciary powers and the support of activities incidental to the exercise of those powers. The Association may not expand or alter its business beyond that stated in this article without the prior approval of the Comptroller of the Currency.

**THIRD.** The board of directors of the Association shall consist of not less than five nor more than twenty-five persons, the exact number to be fixed and determined from time to time by resolution of a majority of the full board of directors or by resolution of a majority of the shareholders at any annual or special meeting thereof. Each director shall own common or preferred stock of the Association or of a holding company owning the Association, with an aggregate par, fair market, or equity value of not less than $1,000, as of either (i) the date of purchase, (ii) the date the person became a director, or (iii) the date of that person's most recent election to the board of directors, whichever is more recent. Any combination of common or preferred stock of the Association or holding company may be used.

Any vacancy in the board of directors may be filled by action of a majority of the remaining directors between meetings of shareholders. The board of directors may increase the number of directors up to the maximum permitted by law. Terms of directors, including directors selected to fill vacancies, shall expire at the next regular meeting of shareholders at which directors are elected, unless the directors resign or are removed from office. Despite the expiration of a director's term, the director shall continue to serve until his or her successor is elected and qualified or until there is a decrease in the number of directors and his or her position is eliminated.

Honorary or advisory members of the board of directors, without voting power or power of final decision in matters concerning the business of the Association, may be appointed by resolution of a majority of the full board of directors, or by resolution of shareholders at any annual or special meeting. Honorary or advisory directors shall not be counted to determined the number of directors of the Association or the presence of a quorum in connection with any board action, and shall not be required to own qualifying shares.

**FOURTH.** There shall be an annual meeting of the shareholders to elect directors and transact whatever other business may be brought before the meeting. It shall be held at the main office or any other convenient place the board of directors may designate, on the day of each year specified therefor in the Bylaws, or if that day falls on a legal holiday in the state in which the

------

Association is located, on the next following banking day. If no election is held on the day fixed or in the event of a legal holiday on the following banking day, an election may be held on any subsequent day within 60 days of the day fixed, to be designated by the board of directors, or, if the directors fail to fix the day, by shareholders representing two-thirds of the shares issued and outstanding. In all cases, at least 10 days' advance notice of the meeting shall be given to the shareholders by first-class mail.

In all elections of directors, the number of votes each common shareholder may cast will be determined by multiplying the number of shares he or she owns by the number of directors to be elected. Those votes may be cumulated and cast for a single candidate or may be distributed among two or more candidates in the manner selected by the shareholder. On all other questions, each common shareholder shall be entitled to one vote for each share of stock held by him or her.

A director may resign at any time by delivering written notice to the board of directors, its chairperson, or to the Association, which resignation shall be effective when the notice is delivered unless the notice specifies a later effective date.

A director may be removed by the shareholders at a meeting called to remove him or her, when notice of the meeting stating that the purpose or one of the purposes is to remove him or her is provided, if there is a failure to fulfill one of the affirmative requirements for qualification, or for cause; provided, however, that a director may not be removed if the number of votes sufficient to elect him or her under cumulative voting is voted against his or her removal.

**FIFTH.** The authorized amount of capital stock of the Association shall be 1,000,000 shares of common stock of the par value of ten dollars ($10) each; but said capital stock may be increased or decreased from time to time, according to the provisions of the laws of the United States. The Association shall have only one class of capital stock.

No holder of shares of the capital stock of any class of the Association shall have any preemptive or preferential right of subscription to any shares of any class of stock of the Association, whether now or hereafter authorized, or to any obligations convertible into stock of the Association, issued, or sold, nor any right of subscription to any thereof other than such, if any, as the board of directors, in its discretion, may from time to time determine and at such price as the board of directors may from time to time fix.

Transfers of the Association's stock are subject to the prior written approval of a federal depository institution regulatory agency. If no other agency approval is required, the approval of the Comptroller of the Currency must be obtained prior to any such transfers.

Unless otherwise specified in the Articles of Association or required by law, (1) all matters requiring shareholder action, including amendments to the Articles of Association must be approved by shareholders owning a majority voting interest in the outstanding voting stock, and (2) each shareholder shall be entitled to one vote per share.

------

Unless otherwise specified in the Articles of Association or required by law, all shares of voting stock shall be voted together as a class, on any matters requiring shareholder approval.

Unless otherwise provided in the Bylaws, the record date for determining shareholders entitled to notice of and to vote at any meeting is the close of business on the day before the first notice is mailed or otherwise sent to the shareholders, provided that in no event may a record date be more than 70 days before the meeting.

The Association, at any time and from time to time, may authorize and issue debt obligations, whether subordinated, without the approval of the shareholders. Obligations classified as debt, whether subordinated, which may be issued by the Association without the approval of shareholders, do not carry voting rights on any issue, including an increase or decrease in the aggregate number of the securities, or the exchange or reclassification of all or part of securities into securities of another class or series.

**SIXTH.** The board of directors shall appoint one of its members president of this Association and one of its members chairperson of the board and shall have the power to appoint one or more vice presidents, a secretary who shall keep minutes of the directors' and shareholders' meetings and be responsible for authenticating the records of the Association, and such other officers and employees as may be required to transact the business of this Association. A duly appointed officer may appoint one or more officers or assistant officers if authorized by the board of directors in accordance with the Bylaws.

The board of directors shall have the power to:

(1) Define the duties of the officers, employees, and agents of the Association.

(2) Delegate the performance of its duties, but not the responsibility for its duties, to the officers, employees,
and agents of the Association.

(3) Fix the compensation and enter employment contracts with its officers and employees upon reasonable terms and
conditions consistent with applicable law.

(4) Dismiss officers and employees.

(5) Require bonds from officers and employees and to fix the penalty thereof.

(6) Ratify written policies authorized by the Association's management or committees of the board.

(7) Regulate the manner any increase or decrease of the capital of the Association shall be made; provided that
nothing herein shall restrict the power of shareholders to increase or decrease the capital of the Association in accordance with law, and nothing shall raise or lower from two-thirds the percentage required
for shareholder approval to increase or reduce the capital.

------

(8) Manage and administer the business and affairs of the Association.

(9) Adopt initial Bylaws, not inconsistent with law or the Articles of Association, for managing the business and
regulating the affairs of the Association.

(10) Amend or repeal Bylaws, except to the extent that the Articles of Association reserve this power in whole or in
part to the shareholders.

(11) Make contracts.

(12) Generally perform all acts that are legal for a board of directors to perform.

**SEVENTH.** The board of directors shall have the power to change the location of the main office to any authorized branch within the limits of the city of Portland, Oregon, without the approval of the shareholders, or with a vote of shareholders owning two-thirds of the stock of the Association for a location outside such limits and upon receipt of a certificate of approval from the Comptroller of the Currency, to any other location within or outside the limits of the city of Portland, Oregon, but not more than thirty miles beyond such limits. The board of directors shall have the power to establish or change the location of any office or offices of the Association to any other location permitted under applicable law, without approval of shareholders, subject to approval by the Comptroller of the Currency.

**EIGHTH.** The corporate existence of this Association shall continue until termination according to the laws of the United States.

**NINTH.** The board of directors of the Association, or any shareholder owning, in the aggregate, not less than 25 percent of the stock of the Association, may call a special meeting of shareholders at any time. Unless otherwise provided by the Bylaws or the laws of the United States, or waived by shareholders, a notice of the time, place, and purpose of every annual and special meeting of the shareholders shall be given by first-class mail, postage prepaid, mailed at least 10, and no more than 60, days prior to the date of the meeting to each shareholder of record at his/her address as shown upon the books of the Association. Unless otherwise provided by the Bylaws, any action requiring approval of shareholders must be effected at a duly called annual or special meeting.

**TENTH.** These Articles of Association may be amended at any regular or special meeting of the shareholders by the affirmative vote of the holders of a majority of the stock of the Association, unless the vote of the holders of a greater amount of stock is required by law, and in that case by the vote of the holders of such greater amount; provided, that the scope of the Association's activities and services may not be expanded without the prior written approval of the Comptroller of the Currency. The Association's board of directors may propose one or more amendments to the Articles of Association for submission to the shareholders.

------

In witness whereof, we have hereunto set our hands this 11<sup>th</sup> of June, 1997.

---

| |
|:---|
| /s/ Jeffrey T. Grubb |
| Jeffrey T. Grubb |
| /s/ Robert D. Sznewajs |
| Robert D. Sznewajs |
| /s/ Dwight V. Board |
| Dwight V. Board |
| /s/ P. K. Chatterjee |
| P. K. Chatterjee |
| /s/ Robert Lane |
| Robert Lane |

---

------

**<u>Exhibit 2</u>**

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| | |
|:---|:---|
| ![LOGO](g116741dsp104.jpg) | Office of the Comptroller of the Currency |
| ![LOGO](g116741dsp104.jpg) | Washington, DC 20219 |

---

**CERTIFICATE OF CORPORATE EXISTENCE AND FIDUCIARY POWERS** 

I, Jonathan Gould, Comptroller of the Currency, do hereby certify that:

1. The Comptroller of the Currency, pursuant to Revised Statutes 324, et seq, as amended, and 12 USC 1, et seq, as amended, has possession, custody, and control of all records pertaining to the chartering, regulation, and supervision of all national banking associations.

2. "U.S. Bank Trust Company, National Association," Portland, Oregon (Charter No. 23412), is a national banking association formed under the laws of the United States and is authorized thereunder to transact the business of banking and exercise fiduciary powers on the date of this certificate.

IN TESTIMONY WHEREOF, today, March 27, 2026, I have hereunto subscribed my name and caused my seal of office to be affixed to these presents at the U.S. Department of the Treasury, in the City of Washington, District of Columbia.

![LOGO](g116741dsp104a.jpg)

Comptroller of the Currency

![LOGO](g116741dsp104b.jpg)

2026-00886-C

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**<u>Exhibit 4</u>**

**U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION** 

**<u>AMENDED AND RESTATED BYLAWS</u>**

<u>ARTICLE I</u> 

<u>Meetings of Shareholders</u> 

Section 1.1. <u>Annual Meeting</u>. The annual meeting of the shareholders, for the election of directors and the transaction of any other proper business, shall be held at a time and place as the Chairman or President may designate. Notice of such meeting shall be given not less than ten (10) days or more than sixty (60) days prior to the date thereof, to each shareholder of the Association, unless the Office of the Comptroller of the Currency (the "OCC") determines that an emergency circumstance exists. In accordance with applicable law, the sole shareholder of the Association is permitted to waive notice of the meeting. If, for any reason, an election of directors is not made on the designated day, the election shall be held on some subsequent day, as soon thereafter as practicable, with prior notice thereof. Failure to hold an annual meeting as required by these Bylaws shall not affect the validity of any corporate action or work a forfeiture or dissolution of the Association.

Section 1.2. <u>Special Meetings</u>. Except as otherwise specially provided by law, special meetings of the shareholders may be called for any purpose, at any time by a majority of the board of directors (the "Board"), or by any shareholder or group of shareholders owning at least ten percent of the outstanding stock. Every such special meeting, unless otherwise provided by law, shall be called upon not less than ten (10) days nor more than sixty (60) days prior notice stating the purpose of the meeting.

Section 1.3. <u>Nominations for Directors</u>. Nominations for election to the Board may be made by the Board or by any shareholder.

Section 1.4. <u>Proxies</u>. Shareholders may vote at any meeting of the shareholders by proxies duly authorized in writing. Proxies shall be valid only for one meeting and any adjournments of such meeting and shall be filed with the records of the meeting.

Section 1.5. <u>Record Date</u>. The record date for determining shareholders entitled to notice and to vote at any meeting will be thirty days before the date of such meeting, unless otherwise determined by the Board.

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Section 1.6. <u>Quorum and Voting</u>. A majority of the outstanding capital stock, represented in person or by proxy, shall constitute a quorum at any meeting of shareholders, unless otherwise provided by law, but less than a quorum may adjourn any meeting, from time to time, and the meeting may be held as adjourned without further notice. A majority of the votes cast shall decide every question or matter submitted to the shareholders at any meeting, unless otherwise provided by law or by the Articles of Association.

Section 1.7. <u>Inspectors</u>. The Board may, and in the event of its failure so to do, the Chairman of the Board may appoint Inspectors of Election who shall determine the presence of quorum, the validity of proxies, and the results of all elections and all other matters voted upon by shareholders at all annual and special meetings of shareholders.

Section 1.8. <u>Waiver and Consent</u>. The shareholders may act without notice or a meeting by a unanimous written consent by all shareholders.

Section 1.9. <u>Remote Meetings</u>. The Board shall have the right to determine that a shareholder meeting not be held at a place, but instead be held solely by means of remote communication in the manner and to the extent permitted by the General Corporation Law of the State of Delaware.

<u>ARTICLE II</u> 

<u>Directors</u> 

Section 2.1. <u>Board of Directors</u>. The Board shall have the power to manage and administer the business and affairs of the Association. Except as expressly limited by law, all corporate powers of the Association shall be vested in and may be exercised by the Board.

Section 2.2. <u>Term of Office</u>. The directors of this Association shall hold office for one year and until their successors are duly elected and qualified, or until their earlier resignation or removal.

Section 2.3. <u>Powers</u>. In addition to the foregoing, the Board shall have and may exercise all of the powers granted to or conferred upon it by the Articles of Association, the Bylaws and by law.

Section 2.4. <u>Number</u>. As provided in the Articles of Association, the Board of this Association shall consist of no less than five nor more than twenty-five members, unless the OCC has exempted the Association from the twenty-five-member limit. The Board shall consist of a number of members to be fixed and determined from time to time by resolution of the Board or the shareholders at any meeting thereof, in accordance with the Articles of Association. Between meetings of the shareholders held for the purpose of electing directors, the Board

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by a majority vote of the full Board may increase the size of the Board but not to more than a total of twenty-five directors, and fill any vacancy so created in the Board; provided that the Board may increase the number of directors only by up to two directors, when the number of directors last elected by shareholders was fifteen or fewer, and by up to four directors, when the number of directors last elected by shareholders was sixteen or more. Each director shall own a qualifying equity interest in the Association or a company that has control of the Association in each case as required by applicable law. Each director shall own such qualifying equity interest in his or her own right and meet any minimum threshold ownership required by applicable law.

Section 2.5. <u>Organization Meeting</u>. The newly elected Board shall meet for the purpose of organizing the new Board and electing and appointing such officers of the Association as may be appropriate. Such meeting shall be held on the day of the election or as soon thereafter as practicable, and, in any event, within thirty days thereafter, at such time and place as the Chairman or President may designate. If, at the time fixed for such meeting, there shall not be a quorum present, the directors present may adjourn the meeting until a quorum is obtained.

Section 2.6. <u>Regular Meetings</u>. The regular meetings of the Board shall be held, without notice, as the Chairman or President may designate and deem suitable.

Section 2.7. <u>Special Meetings</u>. Special meetings of the Board may be called at any time, at any place and for any purpose by the Chairman of the Board or the President of the Association, or upon the request of a majority of the entire Board. Notice of every special meeting of the Board shall be given to the directors at their usual places of business, or at such other addresses as shall have been furnished by them for the purpose. Such notice shall be given at least twelve hours (three hours if meeting is to be conducted by conference telephone) before the meeting by telephone or by being personally delivered, mailed, or electronically delivered. Such notice need not include a statement of the business to be transacted at, or the purpose of, any such meeting.

Section 2.8. <u>Quorum and Necessary Vote</u>. A majority of the directors shall constitute a quorum at any meeting of the Board, except when otherwise provided by law; but less than a quorum may adjourn any meeting, from time to time, and the meeting may be held as adjourned without further notice. Unless otherwise provided by law or the Articles or Bylaws of this Association, once a quorum is established, any act by a majority of those directors present and voting shall be the act of the Board.

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Section 2.9. <u>Written Consent</u>. Except as otherwise required by applicable laws and regulations, the Board may act without a meeting by a unanimous written consent by all directors, to be filed with the Secretary of the Association as part of the corporate records.

Section 2.10. <u>Remote Meetings</u>. Members of the Board, or of any committee thereof, may participate in a meeting of such Board or committee by means of conference telephone, video or similar communications equipment by means of which all persons participating in the meeting can hear each other and such participation shall constitute presence in person at such meeting.

Section 2.11. <u>Vacancies</u>. When any vacancy occurs among the directors, the remaining members of the Board may appoint a director to fill such vacancy at any regular meeting of the Board, or at a special meeting called for that purpose.

<u>ARTICLE III</u> 

<u>Committees</u> 

Section 3.1. <u>Advisory Board of Directors</u>. The Board may appoint persons, who need not be directors, to serve as advisory directors on an advisory board of directors established with respect to the business affairs of either this Association alone or the business affairs of a group of affiliated organizations of which this Association is one. Advisory directors shall have such powers and duties as may be determined by the Board, provided, that the Board's responsibility for the business and affairs of this Association shall in no respect be delegated or diminished.

Section 3.2. <u>Trust Audit Committee</u>. At least once during each calendar year, the Association shall arrange for a suitable audit (by internal or external auditors) of all significant fiduciary activities under the direction of its trust audit committee, a function that will be fulfilled by the Audit Committee of the financial holding company that is the ultimate parent of this Association. The Association shall note the results of the audit (including significant actions taken as a result of the audit) in the minutes of the Board. In lieu of annual audits, the Association may adopt a continuous audit system in accordance with 12 C.F.R. § 9.9(b).

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The Audit Committee of the financial holding company that is the ultimate parent of this Association, fulfilling the function of the trust audit committee:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) Must not include any officers of the Association or an affiliate who participate significantly in the administration of the Association's fiduciary activities; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) Must consist of a majority of members who are not also members of any committee to which the Board has delegated power to manage and control the fiduciary activities of the Association.

Section 3.3. <u>Executive Committee</u>. The Board may appoint an Executive Committee which shall consist of at least three directors and which shall have, and may exercise, to the extent permitted by applicable law, all the powers of the Board between meetings of the Board or otherwise when the Board is not meeting.

Section 3.4. <u>Trust Management Committee</u>. The Board of this Association shall appoint a Trust Management Committee to provide oversight of the fiduciary activities of the Association. The Trust Management Committee shall determine policies governing fiduciary activities. The Trust Management Committee or such sub-committees, officers or others as may be duly designated by the Trust Management Committee shall oversee the processes related to fiduciary activities to assure conformity with fiduciary policies it establishes, including ratifying the acceptance and the closing out or relinquishment of all trusts. The Trust Management Committee will provide regular reports of its activities to the Board.

Section 3.5. <u>Other Committees</u>. The Board may appoint, from time to time, committees of one or more persons who need not be directors, for such purposes and with such powers as the Board may determine; however, the Board will not delegate to any committee any powers or responsibilities that it is prohibited from delegating under any law or regulation. In addition, either the Chairman or the President may appoint, from time to time, committees of one or more officers, employees, agents or other persons, for such purposes and with such powers as either the Chairman or the President deems appropriate and proper. Whether appointed by the Board, the Chairman, or the President, any such committee shall at all times be subject to the direction and control of the Board.

Section 3.6. <u>Meetings, Minutes and Rules</u>. An advisory board of directors and/or committee shall meet as necessary in consideration of the purpose of the advisory board of directors or committee, and shall maintain minutes in sufficient detail to indicate actions taken or recommendations made; unless required by the members, discussions, votes or other specific details need not be reported. An advisory board of directors or a committee may, in consideration of its purpose, adopt its own rules for the exercise of any of its functions or authority.

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<u>ARTICLE IV</u> 

<u>Officers</u> 

Section 4.1 <u>Who Shall Constitute</u>. The Officers of the Association shall be a Chief Executive Officer, a President, a Secretary, and other officers such as Vice Chair, Executive Vice Presidents, Senior Vice Presidents, Vice Presidents, Assistant Vice Presidents, Assistant Secretaries, Trust Officers, Assistant Trust Officers, Controller, and Assistant Controller, as the Board may appoint from time to time. The Board may appoint or elect a person as a Vice Chair without regard to whether such person is a member of the Board. The Board may choose to delegate authority to elect officers other than the Chief Executive Officer, President, Secretary, Vice Chairs and Senior Executive Vice Presidents, to the President. Any person may hold two offices. The President shall at all times be a member of the Board of Directors.

Section 4.2 <u>Term of Office</u>. All officers shall be elected for and shall hold office until their respective successors are elected and qualified or until their earlier death, resignation, retirement, disqualification or removal from office, subject to the right of the Board of Directors in its sole discretion to discharge any officer at any time. The Board may choose to delegate authority to remove officers other than the Chairman, Chief Executive Officer, President, Secretary, Vice Chair and Senior Executive Vice Presidents, to the President.

Section 4.3. <u>Chairman of the Board</u>. The Board may appoint one of its members to be Chairman of the Board to serve at the pleasure of the Board. The Chairman shall supervise the carrying out of the policies adopted or approved by the Board; shall have general executive powers, as well as the specific powers conferred by these Bylaws; and shall also have and may exercise such powers and duties as from time to time may be conferred upon or assigned by the Board.

Section 4.4. <u>President</u>. The Board may appoint one of its members to be President of the Association. In the absence of the Chairman, the President shall preside at any meeting of the Board. The President shall have general executive powers, and shall have and may exercise any and all other powers and duties pertaining by law, regulation or practice, to the office of President, or imposed by these Bylaws. The President shall also have and may exercise such powers and duties as from time to time may be conferred or assigned by the Board.

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Section 4.5. <u>Vice President</u>. The Board may appoint one or more Vice Presidents who shall have such powers and duties as may be assigned by the Board and to perform the duties of the President on those occasions when the President is absent, including presiding at any meeting of the Board in the absence of both the Chairman and President.

Section 4.6. <u>Secretary</u>. The Board shall appoint a Secretary, or other designated officer who shall be Secretary of the Board and of the Association, and shall keep accurate minutes of all meetings. The Secretary shall attend to the giving of all notices required by these Bylaws to be given; shall be custodian of the corporate seal, records, documents and papers of the Association; shall provide for the keeping of proper records of all transactions of the Association; shall, upon request, authenticate any records of the Association; shall have and may exercise any and all other powers and duties pertaining by law, regulation or practice, to the Secretary, or imposed by these Bylaws; and shall also perform such other duties as may be assigned from time to time by the Board. The Board may appoint one or more Assistant Secretaries with such powers and duties as the Board, the President or the Secretary shall from time to time determine.

Section 4.7. <u>Other Officers</u>. The Board may appoint, and may authorize the Chairman, the President or any other officer to appoint, any officer as from time to time may appear to the Board, the Chairman, the President or such other officer to be required or desirable to transact the business of the Association. Such officers shall exercise such powers and perform such duties as pertain to their several offices, or as may be conferred upon or assigned to them by these Bylaws, the Board, the Chairman, the President or such other authorized officer. Any person may hold two offices.

<u>ARTICLE V</u> 

<u>Stock</u> 

Section 5.1. The Board may authorize the issuance of stock either in certificated or in uncertificated form. Certificates for shares of stock shall be in such form as the Board may from time to time prescribe. If the Board issues certificated stock, the certificate shall be signed by the President, Secretary or any other such officer as the Board so determines. Shares of stock shall be transferable on the books of the Association, and a transfer book shall be kept in which all transfers of stock shall be recorded. Every person becoming a shareholder by such transfer shall, in proportion to such person's shares, succeed to all rights of the prior holder of such shares. Each certificate of stock shall recite on its face that the stock represented thereby is transferable only upon the books of the Association properly endorsed. The Board may impose conditions upon the transfer of the stock reasonably calculated to simplify the work of the Association for stock transfers, voting at shareholder meetings, and related matters, and to protect it against fraudulent transfers.

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<u>ARTICLE VI</u> 

<u>Corporate Seal</u> 

Section 6.1. The Association shall have no corporate seal; provided, however, that if the use of a seal is required by, or is otherwise convenient or advisable pursuant to, the laws or regulations of any jurisdiction, the following seal may be used, and the Chairman, the President, the Secretary and any Assistant Secretary shall have the authority to affix such seal:

<u>ARTICLE VII</u> 

<u>Miscellaneous Provisions</u> 

Section 7.1. <u>Execution of Instruments</u>. All agreements, checks, drafts, orders, indentures, notes, mortgages, deeds, conveyances, transfers, endorsements, assignments, certificates, declarations, receipts, discharges, releases, satisfactions, settlements, petitions, schedules, accounts, affidavits, bonds, undertakings, guarantees, proxies and other instruments or documents may be signed, countersigned, executed, acknowledged, endorsed, verified, delivered or accepted on behalf of the Association, whether in a fiduciary capacity or otherwise, by any officer of the Association, or such employee or agent as may be designated from time to time by the Board by resolution, or by the Chairman or the President by written instrument, which resolution or instrument shall be certified as in effect by the Secretary or an Assistant Secretary of the Association. The provisions of this section are supplementary to any other provision of the Articles of Association or Bylaws.

Section 7.2. <u>Records</u>. The Articles of Association, the Bylaws as revised or amended from time to time and the proceedings of all meetings of the shareholders, the Board, and standing committees of the Board, shall be recorded in appropriate minute books provided for the purpose. The minutes of each meeting shall be signed by the Secretary, or other officer appointed to act as Secretary of the meeting.

Section 7.3. <u>Trust Files</u>. There shall be maintained in the Association files all fiduciary records necessary to assure that its fiduciary responsibilities have been properly undertaken and discharged.

Section 7.4. <u>Trust Investments</u>. Funds held in a fiduciary capacity shall be invested according to the instrument establishing the fiduciary relationship and according to law. Where such instrument does not specify the character and class of investments to be made and does not vest in the Association a discretion in the matter, funds held pursuant to such instrument shall be invested in investments in which corporate fiduciaries may invest under law.

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Section 7.5. <u>Notice</u>. Whenever notice is required by the Articles of Association, the Bylaws or law, such notice shall be by mail, postage prepaid, e-mail, in person, or by any other means by which such notice can reasonably be expected to be received, using the address of the person to receive such notice, or such other personal data, as may appear on the records of the Association.

Except where specified otherwise in these Bylaws, prior notice shall be proper if given not more than 30 days nor less than 10 days prior to the event for which notice is given.

<u>ARTICLE VIII</u> 

<u>Indemnification</u> 

Section 8.1. The Association shall indemnify such persons for such liabilities in such manner under such circumstances and to such extent as permitted by Section 145 of the Delaware General Corporation Law, as now enacted or hereafter amended. The Board may authorize the purchase and maintenance of insurance and/or the execution of individual agreements for the purpose of such indemnification, and the Association shall advance all reasonable costs and expenses (including attorneys' fees) incurred in defending any action, suit or proceeding to all persons entitled to indemnification under this Section 8.1. Such insurance shall be consistent with the requirements of 12 C.F.R. § 7.2014 and shall exclude coverage of liability for a formal order assessing civil money penalties against an institution-affiliated party, as defined at 12 U.S.C. § 1813(u).

Section 8.2. Notwithstanding Section 8.1, however, (a) any indemnification payments to an institution-affiliated party, as defined at 12 U.S.C. § 1813(u), for an administrative proceeding or civil action initiated by a federal banking agency, shall be reasonable and consistent with the requirements of 12 U.S.C. § 1828(k) and the implementing regulations thereunder; and (b) any indemnification payments and advancement of costs and expenses to an institution-affiliated party, as defined at 12 U.S.C. § 1813(u), in cases involving an administrative proceeding or civil action not initiated by a federal banking agency, shall be in accordance with Delaware General Corporation Law and consistent with safe and sound banking practices.

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<u>ARTICLE IX</u> 

<u>Bylaws: Interpretation and Amendment</u> 

Section 9.1. These Bylaws shall be interpreted in accordance with and subject to appropriate provisions of law, and may be added to, altered, amended, or repealed, at any regular or special meeting of the Board.

Section 9.2. A copy of the Bylaws and all amendments shall at all times be kept in a convenient place at the principal office of the Association, and shall be open for inspection to all shareholders during Association hours.

<u>ARTICLE X</u> 

<u>Miscellaneous Provisions</u> 

Section 10.1. <u>Fiscal Year</u>. The fiscal year of the Association shall begin on the first day of January in each year and shall end on the thirty-first day of December following.

Section 10.2. <u>Governing Law</u>. This Association designates the Delaware General Corporation Law, as amended from time to time, as the governing law for its corporate governance procedures, to the extent not inconsistent with Federal banking statutes and regulations or bank safety and soundness.

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(November 6, 2025)

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**<u>Exhibit 6</u>**

**CONSENT** 

In accordance with Section 321(b) of the Trust Indenture Act of 1939, the undersigned, U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION hereby consents that reports of examination of the undersigned by Federal, State, Territorial or District authorities may be furnished by such authorities to the Securities and Exchange Commission upon its request therefor.

Dated: May 21, 2026

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| | |
|:---|:---|
| By: | /s/ Quinton M. DePompolo |
|  | Quinton M. DePompolo |
|  | Vice President |

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**<u>Exhibit 7</u>**

**U.S. Bank Trust Company, National Association** 

**Statement of Financial Condition** 

**as of 3/31/2026** 

**($000's)** 

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| | |
|:---|:---|
|  | **3/31/2026** |
|  **Assets** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Cash and Balances Due From Depository Institutions | $2159991 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Securities | 4683 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Federal Funds | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Loans & Lease Financing Receivables | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Fixed Assets | 534 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Intangible Assets | 573596 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other Assets | 160011 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Total Assets** | $**2898815** |
|  **Liabilities** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Deposits | $0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Fed Funds | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Treasury Demand Notes | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Trading Liabilities | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other Borrowed Money | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Acceptances | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Subordinated Notes and Debentures | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Other Liabilities | 221704 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Total Liabilities** | $**221704** |
|  **Equity** |  |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Common and Preferred Stock | 200 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Surplus | 1171635 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Undivided Profits | 1505276 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Minority Interest in Subsidiaries | 0 |
| &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; **Total Equity Capital** | $**2677111** |
|  **Total Liabilities and Equity Capital** | $**2898815** |

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## Ex-Filing

?xml version='1.0' encoding='ASCII'? EX-FILING FEES

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| |
|:---|
| **Calculation of Filing Fee Tables**  |
| &nbsp;&nbsp;&nbsp;&nbsp;**S-3**  |
| &nbsp;&nbsp;&nbsp;&nbsp;**COSTCO WHOLESALE CORP /NEW**  |

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| | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|
| | | **Security Type**  | **Security Class Title**  | **Fee Calculation or Carry Forward Rule**  | **Maximum Aggregate Offering Price**  | **Fee Rate**  | **Amount of Registration Fee**  |
| **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** | **Newly Registered Securities** |
| Fees to be Paid | 1 | Debt | Debt Securities | 457(r) |  | 0.0001381 |  |
| Fees Previously Paid |  |  |  |  |  |  |  |
| **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** | **Carry Forward Securities** |
| Carry Forward Securities |  |  |  |  |  |  |  |
|  |  |  | Total Offering Amounts: | Total Offering Amounts: | $0.00  |  | $0.00  |
|  |  |  | Total Fees Previously Paid:  | Total Fees Previously Paid:  |  |  | $0.00  |
|  |  |  | Total Fee Offsets:  | Total Fee Offsets:  |  |  | $0.00  |
|  |  |  | Net Fee Due:  | Net Fee Due:  |  |  | $0.00  |

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 **Offering Note** <br>

<sup>1</sup> An indeterminate amount of debt securities is being registered as may from time to time be offered hereunder at indeterminate prices. In reliance on Rules 456(b) and 457(r) under the Securities Act of 1933, as amended, the registrant hereby defers payment of the registration fee required in connection with this registration statement. In connection with the securities offered hereby, the registrant will pay "pay-as-you-go registration fees" in accordance with Rule 456(b).

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| |
|:---|
| |
| **Rules 457(b) and 0-11(a)(2)** |
| Fee Offset Claims |
| Fee Offset Sources |
| **Rule 457(p)** |
| Fee Offset Claims |
| Fee Offset Sources |

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