UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
 
 
———————————————————
FORM 11-K
———————————————————
 
 
ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
                    
For the fiscal year ended December 31, 2018

TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
                    
For the transition period from ______ to _____

Commission File Number 0-20355

A. Full title of the plan and the address of the plan, if different from that of the issuer named below:
 
Costco 401(k) Retirement Plan
 
B. Name of issuer of the securities held pursuant to the plan and the address of its principal executive office:

———————————————————
Costco Wholesale Corporation
———————————————————

999 Lake Drive
Issaquah, Washington 98027






COSTCO 401(k) RETIREMENT PLAN
Table of Contents



Report of Independent Registered Public Accounting Firm


The Plan Participants and Benefits Committee
Costco 401(k) Retirement Plan:

Opinion on the Financial Statements
We have audited the accompanying statements of net assets available for benefits of the Costco 401(k) Retirement Plan (the Plan) as of December 31, 2018 and 2017 , the related statement of changes in net assets available for benefits for the year ended December 31, 2018 , and the related notes (collectively, the financial statements). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Plan as of December 31, 2018 and 2017 , and the changes in net assets available for benefits for the year ended December 31, 2018 , in conformity with U.S. generally accepted accounting principles.
Basis for Opinion
These financial statements are the responsibility of the Plan’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Plan in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.
We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.
Accompanying Supplemental Information
The supplemental information in the accompanying schedule of assets (held at end of year) as of December 31, 2018 has been subjected to audit procedures performed in conjunction with the audit of the Plan’s financial statements. The supplemental information is the responsibility of the Plan’s management. Our audit procedures included determining whether the supplemental information reconciles to the financial statements or the underlying accounting and other records, as applicable, and performing procedures to test the completeness and accuracy of the information presented in the supplemental information. In forming our opinion on the supplemental information, we evaluated whether the supplemental information, including its form and content, is presented in conformity with the Department of Labor’s Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. In our opinion, the supplemental information is fairly stated, in all material respects, in relation to the financial statements as a whole.

/s/ KPMG LLP
We have served as the Plan’s auditor since 2002.
Seattle, WA
June 21, 2019


1

COSTCO 401(k) RETIREMENT PLAN
Statements of Net Assets Available for Benefits
December 31, 2018 and 2017
(in thousands)


 
 
 
 
 
 
 
2018
 
2017
Assets:
 
 
 
 
 
 
 
 
Investments at fair value:
 
 
 
 
 
Costco Wholesale Corporation common stock
$
5,964,993

 
$
5,507,519

 
 
Common commingled trust funds
3,950,639

 
3,857,434

 
 
Separately managed accounts
2,117,458

 
2,197,607

 
 
Registered investment company funds
1,248,845

 
1,255,566

 
Investments at contract value:
 
 
 
 
 
Fully benefit-responsive investment contracts
1,291,658

 
1,181,089

 
 
 
 
 
Total investments
14,573,593

 
13,999,215

 
Receivables:
 
 
 
 
 
 
Notes receivable from participants
514,935

 
484,852

 
 
Employee contributions
28,787

 

 
 
Employer contributions
345,719

 
324,291

 
 
 
 
 
Total receivables
889,441

 
809,143

 
Non-interest bearing cash
1,282

 
482

Net assets available for benefits
$
15,464,316

 
$
14,808,840































See accompanying notes to financial statements.

2

COSTCO 401(k) RETIREMENT PLAN
Statement of Changes in Net Assets Available for Benefits
Year Ended December 31, 2018
(in thousands)


 
2018
Net investment income:
 
 
Net appreciation of investments
$
40,370

 
Interest
28,737

 
Dividends
121,285

 
 
Total net investment income
190,392

Interest on notes receivable from participants
25,950

Contributions to the Plan:
 
 
Employee
635,693

 
Employer
409,571

 
 
Total contributions
1,045,264

Distributions to participants and other
(606,130
)
 
 
Net increase in net assets available for benefits
655,476

Net assets available for benefits, beginning of year
14,808,840

Net assets available for benefits, end of year
$
15,464,316

































See accompanying notes to financial statements.

3

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements
December 31, 2018 and 2017

(1)
Plan Description

The following description of the Costco 401(k) Retirement Plan (the Plan) provides only general information. Participants should refer to the Plan document for a more complete description of the Plan’s provisions. To participate in the Plan, an individual must be an employee of Costco Wholesale Corporation (the Company or Costco) and certain subsidiaries.
The Plan is a defined contribution plan for the benefit of eligible employees, established by the Company under Section 401(a) of the Internal Revenue Code (IRC). It includes a qualified cash or deferred arrangement as described in Section 401(k) of the IRC. The Plan is also subject to the provisions of the Employee Retirement Income Security Act of 1974 (ERISA), as amended.
(a)
Employee Contributions

The Plan allows certain employees at least 18 years of age to make salary deferral contributions after completing 90 days of service within 12-consecutive months. Eligible employees may contribute from 1% to 50% of their compensation, subject to certain limitations set by the IRC and the Plan. Eligible employees may also contribute amounts representing certain distributions from other retirement plans (known as rollover contributions).
All newly-eligible employees are automatically enrolled in the Plan at a salary deferral contribution rate of 3% unless the employee elects otherwise. The percentage deferred into the Plan automatically increases by one percentage point each year, to a maximum automatic deferral of 20%. Employees may opt out of this automatic increase.
(b)
Employer Contributions

All Company contributions are invested in accordance with investment selections made by participants. If no selection has been made, the contribution defaults to the Retirement Trust Fund corresponding to the participant's age. Employer contributions are allocated based on an employee’s classification as either: 1) covered by the collective bargaining agreements with the International Brotherhood of Teamsters; or 2) other eligible employment.
(1)
Covered by the Teamsters Agreements
The Company matches 50% of each employee’s contribution up to a maximum of $250 per year. Eligible employees at least 18 years of age who have completed one year of service (12 consecutive months in which the employee worked at least 1,000 hours) are eligible for an annual employer contribution. Plan entry dates for the employer contribution occur on January 1 and July 1. The annual employer contribution is allocated only to the accounts of all eligible Plan participants who are employed on the last day of the applicable Plan year. The allocation rate varies, based on years of service, ranging from $0.05 to $0.47 per straight-time hour worked during the Plan year, up to a maximum of 2,080 hours. This annual contribution was $6.3 million for the year ended December 31, 2018 .





4

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

(2)
Other eligible employment (not covered by the Teamsters Agreements)
The Company matches 50% of each employee’s contribution up to a maximum of $500 per year. In addition, eligible employees at least 18 years of age who have completed a year of service (12 consecutive months in which the employee worked at least 1,000 hours) are eligible for an annual discretionary employer contribution. Plan entry dates for the discretionary contribution occur on January 1 and July 1. The discretionary contribution is allocated only to the accounts of eligible Plan participants who are employed on the last day of the applicable Plan year. The allocation rate varies, based on years of service, ranging from 3% to 9% of the participant's compensation. This discretionary contribution was $342.6 million for the year ended December 31, 2018 .
(c)
Participants’ Accounts

Each participant’s account is credited or debited with the participant’s contributions, the Company’s contributions, earnings, fees, expenses, and changes in underlying account assets. The benefit to which a participant is entitled is the vested account balance.
(d)
Vesting

Participants are immediately vested in their deferral contributions and in certain other contributions as defined in the Plan document adjusted for investment experience, fees and expenses. Vesting in any form of employer contribution is based on the following schedule:
Years of service
 
Percentage vested
Under 2 years
 
 
0%
2 years
 
 
20%
3 years
 
 
40%
4 years
 
 
60%
5 years
 
 
100%
(e)
Forfeitures

If a participant terminates employment, the non-vested portion of the account balance is forfeited. Forfeited amounts are used to reduce future employer contributions or to pay administrative expenses. These were immaterial during 2018. There were no unallocated forfeitures as of December 31, 2018 and 2017 , after consideration of forfeitures used to reduce the employer contributions funded subsequent to each year. Forfeitures are restored to a participant’s account if within five years the participant is re-hired by the Company and repays the vested account balance distributed upon termination.
(f)
Investment Options

Participants may direct their account to the Plan's available options, subject to a 50% limit on contributions to or total account investment in Costco stock. Participants may transfer amounts between investment options on business days that the NYSE is open, subject to certain trading restrictions.
Amounts may be temporarily invested in a cash account prior to investment in the Plan’s investment accounts. See Notes 2, 3 and 4 for additional information regarding the Plan's investments.


5

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

(g)
Distributions

Upon termination of employment, total disability, reaching age 59-1/2 or death, a participant (or participant's beneficiary in the case of death) can request a full, partial or, in certain circumstances, installment or rollover distribution for the vested portion of the account. Participants are also eligible to withdraw a portion of the salary-deferral contribution account in the event of certain financial hardships.
Dividends on the Company's stock are reinvested in the participant’s Company stock account unless a distribution is requested by the participant. These dividends are reported on a gross basis, with total dividends reported as “Dividends” and the amounts distributed reported as “Distributions to participants and other” in the statement of changes in net assets available for benefits.
(h)
Notes Receivable from Participants

A participant may borrow between $1,000 up to the lesser of $50,000 or 45% of their vested account balance, reduced by the highest outstanding balance in the previous 12 months, provided this amount is available in the participant's pre-tax and rollover accounts. In addition, the bi-weekly re-payment amount cannot exceed 25% of the participant's net pay. Loans are repaid through payroll deductions over a period ranging up to four years or, if for the purchase of a principal residence, up to 15 years. The interest rate is determined by the Plan Administrator from time-to-time and is comparable to rates charged by commercial lenders. At December 31, 2018, interest rates on loans outstanding ranged from 4.25% to 11.50%, with various maturities through December 2033. Participant accounts with loans are charged an application fee at initiation and an annual maintenance fee.
(i)
Trustee and Plan Administrator

T. Rowe Price Trust Company is the trustee and recordkeeper for the Plan, and the Costco Benefits Committee is the Plan Administrator.
(j)
Administrative and Investment Expenses

Certain administrative expenses, including investment management and transactions fees, are paid by the Plan, subject to subparagraph (e) above. All other administrative expenses are paid by the Company.

(2)
Summary of Significant Accounting Policies

(a)
Basis of Accounting

The financial statements of the Plan are prepared under the accrual method of accounting. As required under U.S. generally accepted accounting principles (U.S. GAAP), fully benefit-responsive investment contracts are reported at contract value (see Note 3), while all other investments in the Plan are reported at fair value (see Note 4). A benefit-responsive investment contract is a contract with a financial institution or an insurance company that provides for a stated return on principal invested over a specified period and permits withdrawals at contract value for benefit payments, loans, or transfers to other investment options offered to the participant by the Plan. Contract value is the amount participants would receive if they were to initiate permitted transactions under the terms of the Plan.
(b)
Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of

6

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

contingent assets and liabilities at the date of the financial statements, and the reported amounts of income and expense during the reporting period. Actual results could differ from those estimates and assumptions.
(c)
Investment Valuation and Income Recognition

The Plan invests in the Company’s common stock, common commingled trust funds and other exchange-traded equity securities held in the separately managed accounts, as well as registered investment companies and certain fully benefit-responsive investment contracts that, in turn, invest in a combination of stocks, bonds and other investment securities. Investment securities are exposed to various risks, such as interest rate, credit, and overall market volatility. Thus, it is possible that changes in the values of investment securities will occur and those changes could materially affect the amounts reported in the statements of net assets available for benefits.
The Capital Preservation Portfolio (CPP) is invested in Synthetic Guaranteed Investment Contracts (SICs) and Separate Account Contracts (SACs), which are fully benefit-responsive and recorded at contract value. Participant withdrawals are required to be recorded at contract value.
There are no reserves against contract value for credit risk of the contract issuer or otherwise. The crediting interest rate is based on a formula agreed upon with the issuer, but may not be less than zero. Such interest rates are reviewed on a quarterly basis for resetting. Certain events may limit the ability of the Plan to transact at contract value with the issuer. Events may include, but are not limited to, Plan termination, bankruptcy of the Company, or defunction of the trustee. A result may be that the fully benefit-responsive contracts are terminated and settled at an amount different from the contract value. The Plan Administrator believes at this time that any events that would limit the Plan’s ability to transact at contract value with participants are not probable.
Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on an accrual basis. Dividends are recorded on the ex-dividend date. Net appreciation or depreciation of investments includes the change in the fair value or contract value of assets from one period to the next, plus realized gains and losses.
(d)
Notes Receivable from Participants

Participant loans are classified as notes receivable from participants, which are segregated from Plan investments and measured at their unpaid principal balance plus any accrued but unpaid interest. Delinquent notes receivable are reclassified as distributions based upon the terms of the Plan document.
(e)
Distribution of Benefits

Distributions of benefits are recorded when paid.
(f)     Subsequent Events

The Plan monitors significant events occurring after the statement of net assets available for benefits date and prior to the issuance of the financial statements to determine the impacts, if any, of events on the financial statements to be issued. The Plan has evaluated subsequent events through the date which the financial statements are issued.





7

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

(3)
Fully Benefit-Responsive Investment Contracts

The following is a description of the fully benefit-responsive investment contracts invested in by the CPP.

SIC : Consist of a portfolio of underlying assets owned by the Plan and wrap contracts issued by an insurance company and a financial institution. The issuers of the wrap contracts provide for unscheduled withdrawals from the contracts at contract value, regardless of the value of the underlying assets, in order to fund routine permitted participant-initiated withdrawals.
SAC and wrap contract : These are contracts with an insurance company. The issuer legally owns the assets and is required to segregate them into a separate account, which is designed to be protected from the claims of the issuer’s general creditors in the event of insolvency. The issuer of the wrap contract provides for unscheduled withdrawals from the contract at contract value, regardless of the value of the underlying assets, in order to fund routine permitted participant-initiated withdrawals.
The table below presents the total contract value of each type of fully benefit-responsive investment contract in the Plan as of December 31, 2018 and 2017 .

 
Fully benefit-responsive investment contracts (in 000's)
 
2018
 
2017
SIC
$
1,291,658

 
$
995,843

SAC

 
185,246

Total fully benefit-responsive investment contracts
$
1,291,658

 
$
1,181,089

(4)
Fair Value Measurement

U.S. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value is estimated by applying a fair value hierarchy, which requires maximizing the use of observable inputs. The three levels of inputs are:
Level 1: Quoted market prices in active markets for identical assets or liabilities.
Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data.
Level 3: Significant unobservable inputs that are not corroborated by market data.
Valuation techniques utilized during the reporting period were not changed from previous practice. The following is a description of the valuation methodologies used for assets measured at fair value.
Common stock, registered investment company funds, and separately managed accounts : Valued at the closing price reported in the active market in which the individual securities are traded. These assets are valued using Level 1 inputs.
Common commingled trust funds : The valuation techniques used to measure the fair value of common commingled trust funds are based on quoted market prices, such as quoted net asset values (NAV) published by the fund as supported in an active market. Plan participant transactions of investment or withdrawals may occur on a daily basis in these trusts. These assets are valued using Level 1 inputs.

8

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

The tables below present information regarding investments that are measured at fair value on a recurring basis and indicate the level within the hierarchy reflecting the valuation techniques utilized to determine fair value as of December 31, 2018 and 2017.
December 31, 2018:
Level 1
(in 000's)
Investments measured at fair value:
 
Costco Wholesale Corporation common stock
$
5,964,993

Common commingled trust funds
3,950,639

Separately managed accounts
2,117,458

Registered investment company funds
1,248,845

Total investments in fair value hierarchy
$
13,281,935

December 31, 2017:
Level 1
(in 000's)
Investments measured at fair value:
 
Costco Wholesale Corporation common stock
$
5,507,519

Common commingled trust funds
3,857,434

Separately managed accounts
2,197,607

Registered investment company funds
1,255,566

Total investments in fair value hierarchy
$
12,818,126

(5)
Plan Termination

Although it has no present intent to do so, the Company has the right under the Plan to discontinue its contributions at any time and to terminate the Plan, subject to ERISA and the requirements of the collective bargaining agreements with the International Brotherhood of Teamsters. In the event of termination, participants will become 100% vested in their accounts.
(6)
Tax Status

In a determination letter dated June 9, 2017, the IRS informed the Company that the Plan is designed in accordance with applicable sections of the IRC. The Plan has been amended since receiving the determination letter. However, the Plan Administrator believes that the Plan is designed and is being operated in compliance with the IRC.
U.S. GAAP requires the Plan Administrator to evaluate tax positions taken by the Plan and recognize a tax liability (or asset) if the Plan has taken an uncertain position that more likely than not would not be sustained upon examination by the IRS. The Plan Administrator has concluded that as of December 31, 2018 , there are no uncertain positions taken or expected to be taken that would require recognition of a liability (or asset) or disclosure in the financial statements. The Plan is subject to routine audits by taxing jurisdictions; there are currently no audits in progress.

9

COSTCO 401(k) RETIREMENT PLAN
Notes to Financial Statements (Continued)
December 31, 2018 and 2017

(7)
Party-in-Interest and Related Party Transactions

Certain Plan investments are shares of registered investment companies, benefit-responsive investment contracts, and common commingled trust funds managed by T. Rowe Price Trust Company. T. Rowe Price is also the trustee and recordkeeper as defined by the Plan, therefore these transactions qualify as exempt party-in-interest transactions.
As the Plan sponsor, the Company is a party-in-interest with respect to the Plan. As of  December 31, 2018  and  2017 , the Plan held 29,282,000 and 29,591,000 shares of Costco common stock, respectively.



10

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i - Schedule of Assets (Held at End of Year)
December 31, 2018
(in thousands)

(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value
Registered investment company and common commingled trust funds:










American Funds

New Perspective Fund R6

**

$
270,600



PIMCO

Income Institutional

**

405,347



* T. Rowe Price

Retirement Balanced Trust G

**

24,598



* T. Rowe Price

TRP Ret 2005 Active Trust G

**

15,820



* T. Rowe Price

TRP Ret 2010 Active Trust G

**

37,351



* T. Rowe Price

TRP Ret 2015 Active Trust G

**

113,448



* T. Rowe Price

TRP Ret 2020 Active Trust G

**

333,889



* T. Rowe Price

TRP Ret 2025 Active Trust G

**

503,562



* T. Rowe Price

TRP Ret 2030 Active Trust G

**

527,218



* T. Rowe Price

TRP Ret 2035 Active Trust G

**

448,489



* T. Rowe Price

TRP Ret 2040 Active Trust G

**

547,554



* T. Rowe Price

TRP Ret 2045 Active Trust G

**

611,763



* T. Rowe Price

TRP Ret 2050 Active Trust G

**

351,191



* T. Rowe Price

TRP Ret 2055 Active Trust G

**

378,436



* T. Rowe Price

TRP Ret 2060 Active Trust G

**

57,320



Vanguard

Total International Stock Index DX Institutional

**

20,454



Vanguard

Total Bond Market Index Fund Institutional

**

62,295



Vanguard

Institutional Index, Plus

**

490,149



Total registered investment company and common commingled trust funds



5,199,484

Separately managed accounts:










Mid-Cap Growth Portfolio:









Acadia Healthcare Co Inc.

Common Stock

**

3,546




Agilent Technologies Inc.

Common Stock

**

16,990




Air Products & Chemicals Inc.

Common Stock

**

11,517




Alaska Air Group Inc.

Common Stock

**

2,858




Alkermes Plc

Common Stock

**

6,341




Allegion Plc

Common Stock

**

7,170




Alnylam Pharmaceuticals Inc.

Common Stock

**

3,279




Amneal Pharmaceuticals Inc.

Common Stock

**

3,583




Aptiv Plc

Common Stock

**

8,369




Aramark

Common Stock

**

5,154




Ardagh Group Sa

Common Stock

**

210




Assurant Inc.

Common Stock

**

5,274




Athenahealth Inc.

Common Stock

**

1,187




Atlassian Corp Plc-Class A

Common Stock

**

8,092




Atmos Energy Corp

Common Stock

**

3,707




Avery Dennison Corp

Common Stock

**

3,232




Axis Capital Holdings Ltd

Common Stock

**

3,458




Ball Corp

Common Stock

**

15,302




Black Knight Inc.

Common Stock

**

7,250




Bruker Corp

Common Stock

**

9,997




Burlington Stores Inc.

Common Stock

**

8,129




Bwx Technologies Inc.

Common Stock

**

4,470




Cabot Oil & Gas Corp

Common Stock

**

5,718


11

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Carmax Inc.

Common Stock

**

6,457




Casey's General Stores Inc.

Common Stock

**

8,708




Catalent Inc.

Common Stock

**

8,788




Cboe Global Markets Inc.

Common Stock

**

8,897




Cdk Global Inc.

Common Stock

**

3,254




Centennial Resource Development-A

Common Stock

**

2,004




Ceridian Hcm Holding Inc.

Common Stock

**

1,000




Coherent Inc.

Common Stock

**

2,318




Colfax Corp

Common Stock

**

4,595




Conagra Brands Inc.

Common Stock

**

3,800




Concho Resources Inc.

Common Stock

**

7,499




Continental Resources Inc./Ok

Common Stock

**

3,615




Cooper Cos Inc./The

Common Stock

**

20,857




Corelogic Inc.

Common Stock

**

7,281




Corning Inc.

Common Stock

**

10,839




Costar Group Inc.

Common Stock

**

6,069




Darden Restaurants Inc.

Common Stock

**

3,194




Docusign Inc.

Common Stock

**

1,826




Dollar General Corp

Common Stock

**

12,422




Dollar Tree Inc.

Common Stock

**

9,027




Dunkin' Brands Group Inc.

Common Stock

**

5,831




Elanco Animal Health Inc.

Common Stock

**

851




Electronic Arts Inc.

Common Stock

**

1,104




Equifax Inc.

Common Stock

**

5,119




Exact Sciences Corp

Common Stock

**

3,973




Ferrari Nv

Common Stock

**

994




Fidelity National Financial

Common Stock

**

10,306




Fidelity National Info Serv

Common Stock

**

7,482




Fifth Third Bancorp

Common Stock

**

6,890




Fiserv Inc.

Common Stock

**

10,503




Fleetcor Technologies Inc.

Common Stock

**

8,538




Fortive Corp

Common Stock

**

10,346




Franco-Nevada Corp

Common Stock

**

5,119




Frontdoor Inc.

Common Stock

**

2,367




Gardner Denver Holdings Inc.

Common Stock

**

6,336




Gartner Inc.

Common Stock

**

4,600




Global Payments Inc.

Common Stock

**

4,741




Guidewire Software Inc.

Common Stock

**

2,085




Harris Corp

Common Stock

**

16,283




HD Supply Holdings Inc.

Common Stock

**

2,700




Hilton Worldwide Holdings Inc.

Common Stock

**

6,530




Hologic Inc.

Common Stock

**

18,854




Hunt (JB) Transprt Svcs Inc.

Common Stock

**

2,883




Iac/Interactivecorp

Common Stock

**

15,366




Icu Medical Inc.

Common Stock

**

4,360




Idex Corp

Common Stock

**

13,123


12

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Idexx Laboratories Inc.

Common Stock

**

2,417




Ihs Markit Ltd

Common Stock

**

6,424




Incyte Corp

Common Stock

**

4,703




Iqvia Holdings Inc.

Common Stock

**

4,180




Kansas City Southern

Common Stock

**

6,964




Kar Auction Services Inc.

Common Stock

**

6,820




Keysight Technologies Inc.

Common Stock

**

19,171




KKR & Co Inc. -A

Common Stock

**

4,218




Kroger Co

Common Stock

**

5,689




L3 Technologies Inc.

Common Stock

**

3,471




Marketaxess Holdings Inc.

Common Stock

**

4,013




Marriott International -Cl A

Common Stock

**

7,920




Martin Marietta Materials

Common Stock

**

4,638




Marvell Technology Group Ltd

Common Stock

**

6,812




Maxar Technologies Ltd

Common Stock

**

801




Maxim Integrated Products

Common Stock

**

6,861




Mednax Inc.

Common Stock

**

3,661




MGM Resorts International

Common Stock

**

10,183




Michaels Cos Inc./The

Common Stock

**

1,935




Microchip Technology Inc.

Common Stock

**

19,551




National Instruments Corp

Common Stock

**

3,674




Norwegian Cruise Line Holdings

Common Stock

**

12,964




O'Reilly Automotive Inc.

Common Stock

**

6,194




Perrigo Co Plc

Common Stock

**

3,563




Progressive Corp

Common Stock

**

4,221




Red Hat Inc.

Common Stock

**

7,899




Roofoods Limited (Deliveroo)

Preferred Stock

**

1,947




Roper Technologies Inc.

Common Stock

**

12,253




RPM International Inc.

Common Stock

**

8,636




Sage Therapeutics Inc.

Common Stock

**

1,532




Sealed Air Corp

Common Stock

**

6,128




Seattle Genetics Inc.

Common Stock

**

3,567




Sempra Energy

Common Stock

**

7,785




Sensata Technologies Holding

Common Stock

**

15,326




Servicemaster Global Holding

Common Stock

**

5,398




Shopify Inc - Class A

Common Stock

**

1,660




Skyworks Solutions Inc.

Common Stock

**

5,425




Slack Technologies, Inc.

Preferred Stock

**

713




SLM Corp

Common Stock

**

2,791




Splunk Inc.

Common Stock

**

4,820




Sprouts Farmers Market Inc.

Common Stock

**

5,169




SS&C Technologies Holdings

Common Stock

**

4,463




Symantec Corp

Common Stock

**

7,214




Tableau Software Inc.-Cl A

Common Stock

**

7,316




Tapestry Inc.

Common Stock

**

14,740




TD Ameritrade Holding Corp

Common Stock

**

14,533


13

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Teleflex Inc.

Common Stock

**

25,574




Textron Inc.

Common Stock

**

17,190




Transunion

Common Stock

**

8,345




Treehouse Foods Inc.

Common Stock

**

6,487




Ulta Beauty Inc.

Common Stock

**

4,405




United Continental Holdings

Common Stock

**

6,025




Vail Resorts Inc.

Common Stock

**

8,428




Valvoline Inc.

Common Stock

**

4,873




Venture Global Lng, Inc., Series B

Common Stock

**

229




Venture Global Lng, Inc., Series C

Common Stock

**

1,518




Verisk Analytics Inc.

Common Stock

**

11,660




Visteon Corp

Common Stock

**

2,289




Waste Connections Inc.

Common Stock

**

7,346




We Work Companies Class A Common Stock

Common Stock

**

636




Webster Financial Corp

Common Stock

**

3,103




West Pharmaceutical Services

Common Stock

**

5,291




Willis Towers Watson Plc

Common Stock

**

17,150




Workday Inc.-Class A

Common Stock

**

14,522




Worldpay Inc.-Class A

Common Stock

**

14,590




Xilinx Inc.

Common Stock

**

7,661




Xylem Inc.

Common Stock

**

9,002




Zillow Group Inc. - A

Common Stock

**

503




Zillow Group Inc. - C

Common Stock

**

1,831




US Govt Stif 5 Bps

Bond

**

1,797




* T Rowe Price Treasury Reserve Fund

Money Market Securities

**

18,840



Large Cap Value Portfolio:









Agilent Technologies Inc.

Common Stock

**

954




Air Products & Chemicals Inc.

Common Stock

**

830




American International Group

Common Stock

**

1,964




Ameriprise Financial Inc.

Common Stock

**

1,189




Anthem Inc.

Common Stock

**

1,437




AT&T Inc.

Common Stock

**

3,208




AXA Equitable Holdings Inc.

Common Stock

**

200




Ball Corp

Common Stock

**

1,311




Bank Of America Corp

Common Stock

**

501




Becton Dickinson And Co

Preferred Stock

**

3,568




Boeing Co/The

Common Stock

**

4,691




Boston Scientific Corp

Common Stock

**

1,434




Bp Plc-Spons Adr

Common Stock

**

1,200




Broadcom Inc.

Common Stock

**

458




Cabot Oil & Gas Corp

Common Stock

**

809




Celgene Corp

Common Stock

**

434




Chevron Corp

Common Stock

**

206




Chubb Ltd

Common Stock

**

2,276




Cigna Corp

Common Stock

**

2,844


14

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Cisco Systems Inc.

Common Stock

**

5,588




Comcast Corp-Class A

Common Stock

**

1,798




Conagra Brands Inc.

Common Stock

**

1,156




Concho Resources Inc.

Common Stock

**

1,332




Conocophillips

Common Stock

**

970




Cooper Cos Inc./The

Common Stock

**

660




Corning Inc.

Common Stock

**

2,976




Crown Castle Intl Corp

Common Stock

**

1,506




Cvs Health Corp

Common Stock

**

2,404




Danaher Corp

Common Stock

**

3,039




Delta Air Lines Inc.

Common Stock

**

582




Dollar Tree Inc.

Common Stock

**

2,251




Dowdupont Inc.

Common Stock

**

2,485




Duke Energy Corp

Common Stock

**

3,305




Eli Lilly & Co

Common Stock

**

1,027




Entergy Corp

Common Stock

**

2,561




EOG Resources Inc.

Common Stock

**

1,896




Evergy Inc.

Common Stock

**

1,815




Facebook Inc.-Class A

Common Stock

**

2,019




Fifth Third Bancorp

Common Stock

**

1,306




First Republic Bank/Ca

Common Stock

**

1,192




Fortive Corporation

Common Stock

**

843




General Electric Co

Common Stock

**

2,363




Hologic Inc.

Common Stock

**

635




Honeywell International Inc.

Common Stock

**

1,919




Illinois Tool Works

Common Stock

**

871




Intercontinental Exchange Inc.

Common Stock

**

2,544




International Paper Co

Common Stock

**

1,117




Jpmorgan Chase & Co

Common Stock

**

5,420




Kansas City Southern

Common Stock

**

1,018




Keysight Technologies Inc.

Common Stock

**

2,061




Kimberly-Clark Corp

Common Stock

**

2,393




Kraft Heinz Co/The

Common Stock

**

453




Kroger Co

Common Stock

**

877




Las Vegas Sands Corp

Common Stock

**

1,383




Magna International Inc.

Common Stock

**

1,265




Marsh & Mclennan Cos

Common Stock

**

2,126




Maxim Integrated Products

Common Stock

**

588




McDonald's Corp

Common Stock

**

2,471




Medtronic Plc

Common Stock

**

4,677




Merck & Co. Inc.

Common Stock

**

5,563




MGM Resorts International

Common Stock

**

281




Micron Technology Inc.

Common Stock

**

28




Microsoft Corp

Common Stock

**

9,248




Morgan Stanley

Common Stock

**

1,672




Nextera Energy Inc.

Common Stock

**

6,051


15

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Nielsen Holdings Plc

Common Stock

**

1,621




Nisource Inc

Common Stock

**

1,453




Northrop Grumman Corp

Common Stock

**

3,214




Nxp Semiconductors Nv

Common Stock

**

1,059




Occidental Petroleum Corp

Common Stock

**

1,695




PG&E Corp

Common Stock

**

832




Paccar Inc.

Common Stock

**

616




Perrigo Co Plc

Common Stock

**

133




Pfizer Inc.

Common Stock

**

11,147




Philip Morris International

Common Stock

**

2,565




Pnc Financial Services Group

Common Stock

**

4,216




Procter & Gamble Co/The

Common Stock

**

1,457




Prologis Inc.

Common Stock

**

1,171




Prudential Financial Inc.

Common Stock

**

959




Public Storage

Common Stock

**

484




Qualcomm Inc.

Common Stock

**

2,214




Raymond James Financial Inc.

Common Stock

**

484




Republic Services Inc.

Common Stock

**

912




Roper Technologies Inc.

Common Stock

**

745




Ross Stores Inc.

Common Stock

**

1,028




Schwab (Charles) Corp

Common Stock

**

2,931




Sempra Energy

Common Stock

**

4,801




Southern Co/The

Common Stock

**

3,260




State Street Corp

Common Stock

**

344




Stryker Corp

Common Stock

**

1,922




Synopsys Inc.

Common Stock

**

1,697




Te Connectivity Ltd

Common Stock

**

1,101




Texas Instruments Inc.

Common Stock

**

2,829




Thermo Fisher Scientific Inc.

Common Stock

**

3,162




Total Sa-Spon Adr

Common Stock

**

4,567




Transcanada Corp

Common Stock

**

3,587




Twenty-First Century Fox - B

Common Stock

**

2,167




Tyson Foods Inc.-Cl A

Common Stock

**

6,571




UnitedHealth Group Inc.

Common Stock

**

1,440




US Bancorp

Common Stock

**

432




Ventas Inc.

Common Stock

**

695




Verizon Communications Inc.

Common Stock

**

4,953




Walmart Inc.

Common Stock

**

1,281




Wells Fargo & Co

Common Stock

**

8,118




Weyerhaeuser Co

Common Stock

**

564




Willis Towers Watson Plc

Common Stock

**

1,843




Zimmer Biomet Holdings Inc.

Common Stock

**

1,230




Us Govt Stif 5 Bps

Money Market Securities

**

1,070




* T Rowe Price Gov Res Fund

Mutual Funds

**

2,030

 
 
Small-Cap Core Portfolio:
 
 
 
 
 
 



2U Inc.

Common Stock

**

1,282


16

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



A Place For Rover Inc.

Preferred Stock

**

226




Aaron's Inc.

Common Stock

**

2,391




Abeona Therapeutics Inc.

Common Stock

**

96




Acadia Healthcare Co Inc.

Common Stock

**

1,335




Acadia Realty Trust

Common Stock

**

998




Acceleron Pharma Inc.

Common Stock

**

1,136




Aerojet Rocketdyne Holdings

Common Stock

**

2,121




Agios Pharmaceuticals Inc.

Common Stock

**

554




Aimmune Therapeutics Inc.

Common Stock

**

621




Alder Biopharmaceuticals Inc.

Common Stock

**

567




Alexander & Baldwin Inc.

Common Stock

**

1,139




Alkermes Plc

Common Stock

**

451




Allbirds Common Stock Pp

Common Stock

**

257




Allbirds Inc. Series B Convertible

Preferred Stock

**

15




Allbirds Series C Cvt

Preferred Stock

**

140




Allbirds, Inc., Series A Convertible

Preferred Stock

**

83




Allbirds, Inc., Series Seed Convertible

Preferred Stock

**

45




Allogene Therapeutics Inc.

Common Stock

**

185




Amedisys Inc.

Common Stock

**

786




American Campus Communities

Common Stock

**

2,469




American Public Education

Common Stock

**

785




Amneal Pharmaceuticals Inc.

Common Stock

**

612




Anaptysbio Inc.

Common Stock

**

57




Argenx Se - Adr

Common Stock

**

957




Ascendis Pharma A/S - Adr

Common Stock

**

1,338




Assurant Inc.

Common Stock

**

1,942




Atlantic Capital Bancshares

Common Stock

**

786




Atricure Inc.

Common Stock

**

710




Avalara Inc.

Common Stock

**

117




Avanos Medical Inc.

Common Stock

**

2,400




Axis Capital Holdings Ltd

Common Stock

**

1,669




Azz Inc.

Common Stock

**

1,736




Bankunited Inc.

Common Stock

**

2,188




Barings Bdc Inc.

Common Stock

**

478




Barnes Group Inc.

Common Stock

**

1,132




Beigene Ltd-Adr

Common Stock

**

160




Beneficial Bancorp Inc.

Common Stock

**

1,234




Bloom Energy Corp- A

Common Stock

**

207




Blue Hills Bancorp Inc.

Common Stock

**

1,078




Blueprint Medicines Corp

Common Stock

**

951




Booz Allen Hamilton Holdings

Common Stock

**

2,558




Boston Beer Company Inc.-A

Common Stock

**

2,847




Boyd Gaming Corp

Common Stock

**

163




Bridge Bancorp Inc.

Common Stock

**

1,081




Bright Horizons Family Solutions

Common Stock

**

1,678




Brink's Co/The

Common Stock

**

4,334


17

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Bruker Corp

Common Stock

**

1,730




Burlington Stores Inc.

Common Stock

**

3,774




Bwx Technologies Inc.

Common Stock

**

2,501




Cable One Inc.

Common Stock

**

4,030




California Water Service Grp

Common Stock

**

2,122




Cal-Maine Foods Inc.

Common Stock

**

2,575




Capitol Federal Financial Inc.

Common Stock

**

1,553




Cara Therapeutics Inc.

Common Stock

**

144




Cargurus Inc.

Common Stock

**

1,140




Catalent Inc.

Common Stock

**

2,114




CBOE Global Markets Inc.

Common Stock

**

4,005




Centene Corp

Common Stock

**

712




Centennial Resource Development-A

Common Stock

**

1,052




Centerstate Bank Corp

Common Stock

**

189




Central Garden And Pet Co-A

Common Stock

**

196




Ceridian Hcm Holding Inc.

Common Stock

**

704




Chart Industries Inc.

Common Stock

**

2,992




Checkr Inc.

Common Stock

**

34




Checkr, Inc., Series C Convertible

Preferred Stock

**

157




Chegg Inc.

Common Stock

**

2,008




Chesapeake Utilities Corp

Common Stock

**

1,862




Chuy's Holdings Inc.

Common Stock

**

650




Collier Creek Holdings

Common Stock

**

577




Colliers International Group

Common Stock

**

716




Columbia Banking System Inc.

Common Stock

**

1,009




Computer Modelling Group Ltd

Common Stock

**

429




Constellium Nv- Class A

Common Stock

**

400




Convoy Series C Cvt

Preferred Stock

**

350




Corvus Pharmaceuticals Inc.

Common Stock

**

51




Coupa Software Inc.

Common Stock

**

2,288




Cray Inc.

Common Stock

**

1,034




Crinetics Pharmaceuticals Inc.

Common Stock

**

324




Cross Country Healthcare Inc.

Common Stock

**

415




Crossfirst Bankshares Inc.

Common Stock

**

303




Csw Industrials Inc.

Common Stock

**

991




Cts Corp

Common Stock

**

1,067




Cubesmart

Common Stock

**

691




Cubic Corp

Common Stock

**

2,416




Cutera Inc.

Common Stock

**

353




Cyberark Software Ltd/Israel

Common Stock

**

1,196




Cytomx Therapeutics Inc.

Common Stock

**

380




Denny's Corp

Common Stock

**

2,462




Descartes Systems Grp/The

Common Stock

**

2,540




Diamondback Energy Inc.

Common Stock

**

1,505




Dril-Quip Inc.

Common Stock

**

535




Dunkin' Brands Group Inc.

Common Stock

**

2,605


18

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Eastgroup Properties Inc.

Common Stock

**

3,508




Edgewell Personal Care Co

Common Stock

**

253




Ellie Mae Inc.

Common Stock

**

1,351




Enanta Pharmaceuticals Inc.

Common Stock

**

148




Encore Capital Group Inc.

Common Stock

**

1,378




Entegris Inc.

Common Stock

**

1,936




Equity Bancshares Inc. - Cl A

Common Stock

**

333




Equity Commonwealth

Common Stock

**

1,685




Esco Technologies Inc.

Common Stock

**

2,624




Essent Group Ltd

Common Stock

**

871




Euronet Worldwide Inc.

Common Stock

**

3,028




Eventbrite Inc.-Class A

Common Stock

**

165




Evo Payments Inc.-Class A

Common Stock

**

268




Exelixis Inc.

Common Stock

**

198




Farmers Business Network

Preferred Stock

**

631




FB Financial Corp

Common Stock

**

1,691




Federal Signal Corp

Common Stock

**

194




Fiesta Restaurant Group

Common Stock

**

825




First Bancshares Inc./Ms

Common Stock

**

554




First Industrial Realty Trust, Inc.

Common Stock

**

793




Firstservice Corp

Common Stock

**

2,653




Five Below

Common Stock

**

1,253




Five Prime Therapeutics Inc.

Common Stock

**

57




Five9 Inc.

Common Stock

**

2,678




Franco-Nevada Corp

Common Stock

**

1,754




Gardner Denver Holdings Inc.

Common Stock

**

403




Gcp Applied Technologies

Common Stock

**

1,149




Genesee & Wyoming Inc.-Cl A

Common Stock

**

553




Gentherm Inc.

Common Stock

**

1,540




Gibraltar Industries Inc.

Common Stock

**

1,976




Global Blood Therapeutics Inc.

Common Stock

**

1,090




Glycomimetics Inc.

Common Stock

**

158




Goosehead Insurance Inc. -A

Common Stock

**

480




Graco Inc.

Common Stock

**

1,542




Grubhub Inc.

Common Stock

**

688




Gtt Communications Inc.

Common Stock

**

987




Guaranty Bancorp

Common Stock

**

831




Guardant Health Inc.

Common Stock

**

202




Guidewire Software Inc.

Common Stock

**

192




Hanger Inc.

Common Stock

**

864




Hanover Insurance Group Inc.

Common Stock

**

2,663




Hawaiian Holdings Inc.

Common Stock

**

1,173




Haynes International Inc.

Common Stock

**

907




Healthcare Services Group

Common Stock

**

1,080




Heritage Commerce Corp

Common Stock

**

990




Heritage Financial Corp

Common Stock

**

1,234


19

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Heritage-Crystal Clean Inc.

Common Stock

**

802




HMS Holdings Corp

Common Stock

**

1,801




Home Bancshares Inc.

Common Stock

**

2,219




Hope Bancorp Inc.

Common Stock

**

711




Huron Consulting Group Inc.

Common Stock

**

736




Icu Medical Inc.

Common Stock

**

1,502




Immunogen Inc.

Common Stock

**

52




Immunomedics Inc.

Common Stock

**

600




Independent Bank Group Inc.

Common Stock

**

848




Inphi Corp

Common Stock

**

1,472




Insmed Inc.

Common Stock

**

971




Investors Bancorp Inc.

Common Stock

**

1,145




Jagged Peak Energy Inc.

Common Stock

**

717




Jand Inc Dba Warby Parker Class A Common

Common Stock

**

256




Jand Inc Dba Warby Parker Series E Convertible

Preferred Stock

**

316




JBG Smith Properties

Common Stock

**

607




John Bean Technologies Corp

Common Stock

**

2,716




Knight-Swift Transportation

Common Stock

**

240




Kosmos Energy Ltd

Common Stock

**

129




Landstar System Inc.

Common Stock

**

1,067




Lattice Semiconductor Corp

Common Stock

**

2,216




Lennox International Inc.

Common Stock

**

283




Littelfuse Inc.

Common Stock

**

598




Live Oak Bancshares Inc.

Common Stock

**

697




Loxo Oncology Inc.

Common Stock

**

837




Luxfer Holdings Plc

Common Stock

**

1,119




Macom Technology Solutions

Common Stock

**

707




Macrogenics Inc.

Common Stock

**

114




Madrigal Pharmaceuticals Inc

Common Stock

**

198




Magnolia Oil & Gas Corp

Common Stock

**

433




Marriott Vacations World

Common Stock

**

326




Martin Marietta Materials

Common Stock

**

243




Matador Resources Co

Common Stock

**

719




Matson Inc.

Common Stock

**

1,837




Meridian Bancorp Inc.

Common Stock

**

1,377




Michaels Cos Inc./The

Common Stock

**

1,382




Middlesex Water Co

Common Stock

**

859




Minerals Technologies Inc.

Common Stock

**

675




Mks Instruments Inc.

Common Stock

**

688




Molina Healthcare Inc.

Common Stock

**

4,542




Momenta Pharmaceuticals Inc.

Common Stock

**

412




Monolithic Power Systems Inc.

Common Stock

**

628




Monro Inc.

Common Stock

**

4,142




Moog Inc.-Class A

Common Stock

**

1,204




Mueller Water Products Inc.-A

Common Stock

**

1,618




Myokardia Inc.

Common Stock

**

649


20

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



National Commerce Corp

Common Stock

**

609




National Instruments Corp

Common Stock

**

1,926




National Vision Holdings Inc.

Common Stock

**

876




Nevro Corp

Common Stock

**

413




Nextera Energy Partners Lp

Common Stock

**

1,085




Nomad Foods Ltd

Common Stock

**

73




Northern Star Resources Ltd

Common Stock

**

1,142




Novanta Inc.

Common Stock

**

2,792




Nuvasive Inc.

Common Stock

**

1,224




Okta Inc.

Common Stock

**

368




Ollie's Bargain Outlet Holdings

Common Stock

**

2,539




One Gas Inc.

Common Stock

**

4,574




Orchard Therapeutics Plc

Common Stock

**

127




Origin Bancorp Inc.

Common Stock

**

775




Osisko Gold Royalties Ltd

Common Stock

**

889




Pacific Premier Bancorp Inc.

Common Stock

**

945




Pacira Pharmaceuticals Inc.

Common Stock

**

763




Pager Duty Inc.

Preferred Stock

**

358




Pagerduty Inc.

Common Stock

**

43




Papa John's Intl Inc.

Common Stock

**

852




Paramount Group Inc.

Common Stock

**

1,760




Paycom Software Inc.

Common Stock

**

805




PDF Solutions Inc.

Common Stock

**

512




Pennymac Financial Services

Common Stock

**

764




Performance Food Group Co

Common Stock

**

1,949




Pgt Innovations Inc.

Common Stock

**

1,086




Pinnacle Financial Partners

Common Stock

**

2,044




PNM Resources Inc.

Common Stock

**

2,877




Polyone Corporation

Common Stock

**

897




Post Holdings Inc.

Common Stock

**

3,062




PRA Group Inc.

Common Stock

**

1,808




Prestige Consumer Healthcare

Common Stock

**

1,042




Principia Biopharma Inc.

Common Stock

**

369




Proofpoint Inc.

Common Stock

**

1,828




Prosperity Bancshares Inc.

Common Stock

**

1,855




PS Business Parks Inc./Ca

Common Stock

**

3,664




PTC Therapeutics Inc.

Common Stock

**

215




Pure Storage Inc. - Class A

Common Stock

**

502




Q2 Holdings Inc.

Common Stock

**

373




Quaker Chemical Corp

Common Stock

**

619




Quanex Building Products

Common Stock

**

588




Quidel Corp

Common Stock

**

2,153




Quotient Technology Inc.

Common Stock

**

540




Radian Group Inc.

Common Stock

**

1,178




Radius Health Inc.

Common Stock

**

946




Reata Pharmaceuticals Inc.-A

Common Stock

**

162


21

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Red Robin Gourmet Burgers

Common Stock

**

916




Redfin Corp

Common Stock

**

641




Regency Centers Corp

Common Stock

**

1,045




Rentokil Initial Plc

Common Stock

**

1,494




Rev Group Inc.

Common Stock

**

316




Rh

Common Stock

**

1,000




Safety Insurance Group Inc.

Common Stock

**

1,093




Sage Therapeutics Inc.

Common Stock

**

2,979




Sanderson Farms Inc.

Common Stock

**

1,790




Sarepta Therapeutics Inc.

Common Stock

**

348




Schneider National Inc.-Cl B

Common Stock

**

809




Scholar Rock Holding Corp

Common Stock

**

134




Seacoast Banking Corp/Fl

Common Stock

**

2,273




Seattle Genetics Inc.

Common Stock

**

615




Seismic Software Series E Convertible

Preferred Stock

**

304




Selective Insurance Group

Common Stock

**

3,574




Service Titan Inc

Preferred Stock

**

21




Servicetitan, Inc., Series D Convertible

Preferred Stock

**

209




Seven Generations Energy - A

Common Stock

**

1,349




Simmons First Natl Corp-Cl A

Common Stock

**

807




Simply Good Foods Co/The

Common Stock

**

1,792




Simpson Manufacturing Co Inc.

Common Stock

**

1,202




Siteone Landscape Supply Inc.

Common Stock

**

2,674




SJW Group

Common Stock

**

1,711




Skyline Champion Corp

Common Stock

**

728




SLM Corp

Common Stock

**

1,104




South Jersey Industries

Preferred Stock

**

744




South State Corp

Common Stock

**

1,434




Southwest Gas Holdings Inc.

Common Stock

**

3,535




Spark Therapeutics Inc.

Common Stock

**

374




SS&C Technologies Holdings

Common Stock

**

3,633




State Auto Financial Corp

Common Stock

**

847




Steris Plc

Common Stock

**

2,522




Sterling Bancorp Inc./Mi

Common Stock

**

376




Stoneco, Ltd., Class A

Common Stock

**

1,557




Sun Hydraulics Corp

Common Stock

**

652




SVMK Inc.

Common Stock

**

322




Tableau Software Inc.-Cl A

Common Stock

**

4,094




Team Inc.

Common Stock

**

880




Teledyne Technologies Inc.

Common Stock

**

5,011




Tempur Sealy International Inc.

Common Stock

**

1,459




Texas Capital Bancshares Inc.

Common Stock

**

799




Therapeuticsmd Inc.

Common Stock

**

1,214




Thermon Group Holdings Inc.

Common Stock

**

1,101




Toast Inc Cvt

Preferred Stock

**

779




Toast Inc Pp

Common Stock

**

1


22

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Toast Series B Cvt

Preferred Stock

**

11




Toro Co

Common Stock

**

2,131




Towne Bank

Common Stock

**

1,212




Treehouse Foods Inc.

Common Stock

**

2,757




Tri Pointe Group Inc.

Common Stock

**

1,609




Tucows Inc.-Class A

Common Stock

**

643




Tuesday Morning Corp

Common Stock

**

294




U.S. Physical Therapy Inc.

Common Stock

**

1,599




Ultragenyx Pharmaceutical Inc.

Common Stock

**

277




Univest Financial Corp

Common Stock

**

787




Valmont Industries

Common Stock

**

1,731




Venture Global Lng, Inc., Series B

Common Stock

**

83




Venture Global Lng, Inc., Series C

Common Stock

**

1,087




Visteon Corp

Common Stock

**

947




Vroom Inc Cvt Ser

Preferred Stock

**

369




Waste Connections Inc.

Common Stock

**

3,054




Watsco Inc.

Common Stock

**

333




Wave Life Sciences Ltd

Common Stock

**

837




Webster Financial Corp

Common Stock

**

1,362




Western Alliance Bancorp

Common Stock

**

2,214




Wingstop Inc.

Common Stock

**

2,442




Wix.Com Ltd

Common Stock

**

1,293




Wright Medical Group Nv

Common Stock

**

1,630




Xencor Inc.

Common Stock

**

1,330




Zendesk Inc.

Common Stock

**

2,197




Zynga Inc. - Cl A

Common Stock

**

1,861




Collective US Govt Stif 5 Bps

Money Market Security

**

1,066




Grasshopper Bancorp Unsponsored

Money Market Security

**

41




*T. Rowe Price Treasury Reserve Fund

Money Market Security

**

3,885




Roofoods Limited (Deliveroo)

Preferred Stock

**

1,116



International Equity Portfolio:









AAC Technologies H-Unsponsored Ad

Common Stock

**

2,023




ABB Ltd-Sponsored Adr

Common Stock

**

2,192




Adecco Group Ag-Reg-Unsponsored Adr

Common Stock

**

2,507




Aflac Inc.

Common Stock

**

2,498




Air Liquide-Unsponsored Adr

Common Stock

**

1,845




Allianz Se-Sponsored Adr

Common Stock

**

2,481




Astellas Pharma Inc-Unsponsored Adr

Common Stock

**

1,671




AXA -Sponsored Adr

Common Stock

**

2,321




Banco Bilbao Vizcaya-Sponsored Adr

Common Stock

**

2,608




Bancolombia S.A.-Sponsored Adr

Common Stock

**

1,888




Basf Se-Sponsored Adr

Common Stock

**

2,560




BHP Group Ltd-Sponsored Adr

Common Stock

**

2,530




BNP Paribas-Adr

Common Stock

**

2,303




British American Tob-Sponsored Adr

Common Stock

**

1,926




Coca-Cola Hbc Ag-Unsponsored Adr

Common Stock

**

1,609


23

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



Compass Group Plc-Sponsored Adr

Common Stock

**

2,146




Continental Ag-Sponsored Adr

Common Stock

**

2,716




Credicorp Ltd

Common Stock

**

2,328




CSL Ltd-Sponsored Adr

Common Stock

**

2,089




Dassault Systemes S-Sponsored Adr

Common Stock

**

1,142




Diageo Plc-Sponsored Adr

Common Stock

**

2,101




DNB Asa-Sponsored Adr

Common Stock

**

2,243




Enbridge Inc.

Common Stock

**

1,882




Essity Ab - Sponsored Adr

Common Stock

**

2,087




Fanuc Corp-Unsponsored Adr

Common Stock

**

1,707




Fresenius Se & Co-Sponsored Adr

Common Stock

**

2,064




Givaudan-Unsponsored Adr

Common Stock

**

1,903




Grupo Fin Banorte-Sponsored Adr

Common Stock

**

2,944




Henkel Kgaa-Sponsored Adr Pfd

Common Stock

**

2,224




Imperial Oil Ltd

Common Stock

**

1,826




JGC Corp-Unsponsored Adr

Common Stock

**

1,938




Komatsu Ltd -Sponsored Adr

Common Stock

**

2,327




Kubota Corp-Sponsored Adr

Common Stock

**

1,547




L'oreal-Unsponsored Adr

Common Stock

**

1,531




Macquarie Group Ltd-Adr

Common Stock

**

2,174




Mettler-Toledo International

Common Stock

**

2,106




MTN Group Ltd-Sponsored Adr

Common Stock

**

1,424




Muenchener Rueck-Unsponsored Adr

Common Stock

**

2,177




Nestle Sa-Sponsored Adr

Common Stock

**

1,957




Nitto Denko Corp-Unsponsored Adr

Common Stock

**

1,966




Novartis Ag-Sponsored Adr

Common Stock

**

1,523




Novo-Nordisk A/S-Sponsored Adr

Common Stock

**

2,225




Orix - Sponsored Adr

Common Stock

**

2,094




Pandora A/S-Sponsored Adr

Common Stock

**

942




Prudential Plc-Adr

Common Stock

**

2,555




Reckitt Benckiser-Sponsored Adr

Common Stock

**

2,105




Roche Holdings Ltd-Sponsored Adr

Common Stock

**

2,221




Royal Dutch Shell-Sponsored Adr-B

Common Stock

**

2,228




Ryanair Holdings Plc-Sponsored Adr

Common Stock

**

2,274




Sandvik Ab-Sponsored Adr

Common Stock

**

2,350




SAP Se-Sponsored Adr

Common Stock

**

1,957




Siemens Ag-Sponsored Adr

Common Stock

**

1,499




Singapore Telecommunication-Adr

Common Stock

**

1,645




Sysmex Corp-Unsponsored Adr

Common Stock

**

1,516




Taiwan Semiconductor-Sponsored Adr

Common Stock

**

2,258




Tokyo Electron Ltd-Unsponsored Adr

Common Stock

**

2,534




Total Sa-Sponsored Adr

Common Stock

**

2,282




Turkiye Garanti Bankasi-Adr

Common Stock

**

2,848




Volkswagen A G-Unsponsored Adr

Common Stock

**

2,951




Walmart De Mexico-Sponsored Adr V

Common Stock

**

2,173




Woodside Petroleum-Sponsored Adr

Common Stock

**

1,883


24

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



WPP Plc-Sponsored Adr

Common Stock

**

2,067




Federated Government Obligations Fund

Money Market Security

**

4,569



Large Cap Growth Portfolio:









Activision Blizzard Inc.

Common Stock

**

10,988




Adobe Inc.

Common Stock

**

14,854




Alexion Pharmaceuticals Inc.

Common Stock

**

12,826




Alibaba Group Holding

Common Stock

**

18,419




Align Technology Inc.

Common Stock

**

8,829




Amazon.com Inc.

Common Stock

**

18,675




Applied Materials Inc.

Common Stock

**

12,618




Booking Holdings Inc.

Common Stock

**

13,974




Bristol-Myers Squibb Co

Common Stock

**

13,224




Canada Goose Holdings Inc.

Common Stock

**

6,533




Cognex Corp

Common Stock

**

10,561




Ctrip.com International-Adr

Common Stock

**

10,904




Edwards Lifesciences Corp

Common Stock

**

10,400




Exact Sciences Corp

Common Stock

**

8,234




Facebook Inc.-Class A

Common Stock

**

19,032




Idexx Laboratories Inc.

Common Stock

**

12,314




Illumina Inc.

Common Stock

**

17,046




Mercadolibre Inc.

Common Stock

**

9,409




MSCI Inc.

Common Stock

**

9,108




New Oriental Education-Sponsored

Common Stock

**

13,358




Nike Inc. -Cl B

Common Stock

**

15,673




Nvidia Corp

Common Stock

**

13,341




Paypal Holdings Inc.

Common Stock

**

14,386




Pioneer Natural Resources Co

Common Stock

**

7,434




Salesforce.com Inc.

Common Stock

**

17,785




Schwab (Charles) Corp

Common Stock

**

15,433




Servicenow Inc.

Common Stock

**

16,802




Splunk Inc.

Common Stock

**

14,677




Square Inc. - A

Common Stock

**

10,729




Tjx Companies Inc.

Common Stock

**

9,039




UnitedHealth Group Inc.

Common Stock

**

12,478




Vertex Pharmaceuticals Inc.

Common Stock

**

15,443




Visa Inc-Class A Shares

Common Stock

**

13,242




Dreyfus Treasury & Agency Cash Mgnt # 521

Money Market Security

**

3,058

 
 
Total separately managed accounts
 
 
 
2,117,458

Fully Benefit-Responsive Contracts:
 
 
 
 
 
 
 
 
Capital Preservation Portfolio:
 
 
 
 
 
 



* T. Rowe Price Reserve Inv Fund

Mutual and Trust Fund

**

97,083




* T. Rowe Price Short Term Common:









    American General Life

Mutual and Trust Fund

**

57,950




    Mass Mutual SIC

Mutual and Trust Fund

**

42,055




    Prudential Building Block Trust

Mutual and Trust Fund

**

58,318




    State Street Building Block Trust

Mutual and Trust Fund

**

47,566


25

COSTCO 401(k) RETIREMENT PLAN
Schedule H, Line 4i – Schedule of Assets (Held at End of Year) (Continued)
December 31, 2018
(in thousands)


(a) (b) Identity of issuer, borrower,
lessor, or similar party
 
(c) Description of investment
 
(d) Cost
 
(e) Current value



    Pacific Life Building Block Trust

Mutual and Trust Fund

**

57,262




    RBC Building Block Trust

Mutual and Trust Fund

**

66,898




    NY Life Bldg Block Trust

Mutual and Trust Fund

**

41,713




    Transamerica Building Block Trust

Mutual and Trust Fund

**

61,781




    Metropolitan Life

Mutual and Trust Fund

**

62,614




* T. Rowe Price Int Term Common:









    Mass Mutual SIC

Mutual and Trust Fund

**

51,419




    Prudential Building Block Trust

Mutual and Trust Fund

**

71,211




    State Street Building Block Trust

Mutual and Trust Fund

**

80,830




    Pacific Life Building Block Trust

Mutual and Trust Fund

**

69,920




    American General Life

Mutual and Trust Fund

**

49,881




    RBC Building Block Trust

Mutual and Trust Fund

**

57,582




    NY Life Bldg Block Trust

Mutual and Trust Fund

**

50,913




    Transamerica Building Block Trust

Mutual and Trust Fund

**

53,180




    Metropolitan Life

Mutual and Trust Fund

**

106,530




* T. Rowe Price Managed Bond:









    Mass Mutual SIC

Mutual and Trust Fund

**

9,280




    Prudential Building Block Trust

Mutual and Trust Fund

**

12,843




    State Street Building Block Trust

Mutual and Trust Fund

**

15,904




    Pacific Life Building Block Trust

Mutual and Trust Fund

**

12,615




    American General Life

Mutual and Trust Fund

**

8,138




    RBC Building Block Trust

Mutual and Trust Fund

**

9,394




    NY Life Bldg Block Trust

Mutual and Trust Fund

**

9,180




    Transamerica Building Block Trust

Mutual and Trust Fund

**

8,683




    Metropolitan Life

Mutual and Trust Fund

**

20,915



Total Fully Benefit-Responsive Contracts



1,291,658


* Costco Wholesale Corporation

Common stock

**

5,964,993

Total investments



14,573,593










* Participant loans

Interest rates of 4.25% to 11.50% maturing through 2033

__

514,935

Total



$
15,088,528

_________________________
 
 
 
 
 
 
 
 
* Indicates a party-in-interest
 
 
 
 
 
 
 
 
** Information is not required as investments are participant directed
 
 
 
 
 
 
 
 



See accompanying report of independent registered public accounting firm.

26



SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the trustees (or other persons who administer the employee benefit plan) have duly caused this annual report to be signed on its behalf by the undersigned hereunto duly authorized.
 
 
 
C OSTCO  401(k) R ETIREMENT  P LAN
 
 
 
 
June 21, 2019
 
By:
/s/ P ATRICK  J. C ALLANS
Date
 
 
Patrick J. Callans
Executive Vice President
Costco Wholesale Corporation

27
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