Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionCRA Financial Services, LLC
Latest Disclosed Ownership1,654 shares
Latest Disclosed Value $ 1,647,803
CRA Financial Services, LLC reports 2.92% increase in ownership of COST / Costco Wholesale Corporation

On April 9, 2026 - CRA Financial Services, LLC filed a 13F-HR form disclosing ownership of 1,654 shares of Costco Wholesale Corporation (MX:COST) valued at $1,647,803 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 16, 2026 disclosing 1,607 shares of Costco Wholesale Corporation. This represents a change in shares of 2.92% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-09 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,654 47 2.92 1,648 18.92 0.2140
2026-01-16 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,607 -80 -4.74 1,386 -11.27 0.1813
2025-10-16 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,687 44 2.68 1,562 -4.00 0.2136
2025-07-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,643 49 3.07 1,626 7.90 0.2486
2025-04-16 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 1,594 184 13.05 1,508 16.73 0.2580
2025-01-31 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,410 -45 -3.09 1,292 0.08 0.2217
2024-10-10 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 1,455 53 3.78 1,290 8.31 0.2367
2024-07-12 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 1,402 26 1.89 1,192 18.15 0.2405
2024-04-17 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 1,376 13 0.95 1,008 12.12 0.2190
2024-02-01 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 1,363 6 0.44 900 17.36 0.2202
2023-10-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 1,357 50 3.83 767 8.96 0.2110
2023-07-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 1,307 9 0.69 704 9.16 0.1902
2023-04-06 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 1,298 5 0.39 645 9.15 0.1915
2023-01-24 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 1,293 -19 -1.45 590 -4.84 0.1932
2022-10-24 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,312 -8 -0.61 620 -2.05 0.2231
2022-07-21 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 1,320 -32 -2.37 633 -18.74 0.2169
2022-04-15 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 1,352 157 13.14 779 14.90 0.2343
2022-01-20 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 1,195 10 0.84 678 27.44 0.2016
2021-10-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 1,185 185 18.50 532 34.34 0.1800
2021-07-23 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 1,000 0 0.00 396 12.50 0.1377
2021-04-16 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 1,000 415 70.94 352 60.00 0.1362
2021-01-27 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 585 585 220 0.0925
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.