<SEC-DOCUMENT>0000909832-25-000111.txt : 20251024
<SEC-HEADER>0000909832-25-000111.hdr.sgml : 20251024
<ACCEPTANCE-DATETIME>20251024180953
ACCESSION NUMBER:		0000909832-25-000111
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20251022
FILED AS OF DATE:		20251024
DATE AS OF CHANGE:		20251024

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DENMAN KENNETH D
		CENTRAL INDEX KEY:			0001254779
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20355
		FILM NUMBER:		251417114

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

ISSUER:		

	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:			0831

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-10-22</periodOfReport>

    <issuer>
        <issuerCik>0000909832</issuerCik>
        <issuerName>COSTCO WHOLESALE CORP /NEW</issuerName>
        <issuerTradingSymbol>COST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001254779</rptOwnerCik>
            <rptOwnerName>DENMAN KENNETH D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>999 LAKE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>ISSAQUAH</rptOwnerCity>
            <rptOwnerState>WA</rptOwnerState>
            <rptOwnerZipCode>98007</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-10-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>286</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5988.936</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Grant of Restricted Stock Units. Vests one-third on October 22, 2025, and one-third annually on October 22 for the following two years.</footnote>
        <footnote id="F2">Not applicable. Grant of Restricted Stock Units.</footnote>
    </footnotes>

    <remarks>Exhibit 24: Power of Attorney provided herewith.</remarks>

    <ownerSignature>
        <signatureName>/s/ Alejandro Torres, Attorney-in-Fact</signatureName>
        <signatureDate>2025-10-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): POA
<TEXT>
POWER OF ATTORNEY
The undersigned hereby makes, constitutes and appoints each of John Sullivan,
Gary Millerchip, Alejandro Torres, and Soleil Luke, or either of them acting
singly, and with full power of substitution, re-substitution and delegation,
the undersigned's true and lawful attorney-in-fact (each of such persons and
their substitutes and delegees being referred to herein as the
"Attorney-in-Fact"), with full power to act for the undersigned and in the
undersigned's name, place and stead, in the undersigned's capacity as an
officer or director of Costco Wholesale Corporation (the "Company"), to:
1. Take such actions as may be necessary or appropriate to enable the
undersigned to submit and file forms, schedules and other documents with the
U.S. Securities and Exchange Commission ("SEC") utilizing the SEC's
Electronic Data Gathering and Retrieval ("EDGAR") system, which actions may
include (a)
enrolling the undersigned in EDGAR Next and (b) preparing, executing and
submitting to the SEC a Form ID, amendments thereto, and such other documents
and information as may be necessary or appropriate to obtain codes and
passwords enabling the undersigned to make filings and submissions utilizing
the EDGAR system;
2. Prepare and execute any and all forms, schedules and other documents
(including any amendments thereto) the undersigned is required to file
with the SEC, or which the Attorney-in-Fact considers it advisable for
the undersigned to file with the SEC, under Section 16 of the Securities
Exchange Act of 1934 or any rule or regulation thereunder, including Forms
3, 4 and 5, (all such forms, schedules and other documents being referred to
herein as "SEC Filings");
3. Submit and file SEC Filings with the SEC utilizing the EDGAR system or
cause them to be submitted and filed by a person appointed under Section 5
below;
4. File, submit or otherwise deliver SEC Filings to any securities exchange
on which the Company's securities may be listed or traded;
5. To act as an account administrator for the undersigned's EDGAR account,
including:
(i) appoint, remove and replace account administrators, account users,
technical administrators and delegated entities; (ii) maintain the security
of the undersigned's EDGAR account, including modification of access codes;
(iii) maintain, modify and certify the accuracy of information on the
undersigned's EDGAR account dashboard;
(iv) act as the EDGAR point of contact with respect to the undersigned's
EDGAR account; and (v) any other actions contemplated by Rule 10 of
Regulation S-T with respect to account administrators;
6. Cause the Company to accept a delegation of authority from any of the
undersigned's EDGAR account administrators and, pursuant to that delegation,
authorize the Company's EDGAR account administrators to appoint, remove or
replace users for the undersigned's EDGAR account; and
7. Obtain, as the undersigned's representative and on the undersigned's
behalf, information regarding transactions in the Company's equity securities
from any third party, including the Company and any brokers, dealers,
employee benefit plan administrators and trustees,
and the undersigned hereby authorizes any such third party to release any
such information to the Attorney-in-Fact.
The undersigned acknowledges that:
a) This Power of Attorney authorizes, but does not require, the
Attorney-in-Fact to act in his or her discretion on information provided
to such Attorney-in-Fact without independent verification of such
information;
b) Any documents prepared or executed by the Attorney-in-Fact on behalf of
the undersigned pursuant to this Power of Attorney will be in such form
and will contain such information as the Attorney-in-Fact, in his or her
discretion, deems necessary or desirable;
c) Neither the Company nor the Attorney-in-Fact assumes any liability
for the undersigned's responsibility to comply with the requirements of
Section 16 of the Exchange Act, any liability of the undersigned for any
failure to comply with such requirements, or any liability of the undersigned
for disgorgement of profits under Section 16(b) of the Exchange Act; and
d) This Power of Attorney does not relieve the undersigned from
responsibility for compliance with the undersigned's obligations under
Section 16 of the Exchange Act, including, without limitation, the
reporting requirementsunder Section 16 of the Exchange Act. Additionally,
although pursuant to this Power of Attorney the Company will use
commercially reasonable best efforts to timely and accurately file
Section 16 reports on behalf of the undersigned, the Company does not
represent or warrant that it will be able to in all cases timely and
accurately file Section 16 reports on behalf of the undersigned due to
various factors, including, but not limited to, the shorter deadlines
mandated by the Sarbanes-Oxley Act of 2002, possible time zone differences
between the Company and the undersigned and the Company's need to rely on
others for information, including the undersigned and brokers of the
undersigned.The undersigned hereby grants to the Attorney-in-Fact full
power and authority to do and perform each and every act and thing requisite,
necessary or advisable to be done in connection with the foregoing, as fully,
to all intents and purposes, as the undersigned might or could do in person,
hereby ratifying and confirming all that the Attorney-in-Fact, or his or
her substitute or substitutes, shall lawfully do or cause to be done
by authority of this Power of Attorney.This Power of Attorney shall
remain in full force and effect until the undersigned is
no longer required to file Forms 3, 4 or 5 with respect to the
undersigned's holdings of and transactions in securities of the Company,
unless earlier revoked by the undersigned in a signed writing delivered
to the Attorney-in-Fact. This Power of Attorney revokes all previous
powers of attorney with respect to the subject matter of this
Power of Attorney.
IN WITNESS WHEREOF, the undersigned has executed this Power of Attorney
as of October 15, 2025
Name: /s/ Kenneth D. Denman
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
