Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionSymmetry Partners, LLC
Latest Disclosed Ownership844 shares
Latest Disclosed Value $ 841,384
Symmetry Partners, LLC reports 6.03% increase in ownership of COST / Costco Wholesale Corporation

On April 27, 2026 - Symmetry Partners, LLC filed a 13F-HR form disclosing ownership of 844 shares of Costco Wholesale Corporation (MX:COST) valued at $841,384 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 796 shares of Costco Wholesale Corporation. This represents a change in shares of 6.03% 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)
2026-04-27 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 844 48 6.03 841 22.59 0.0481
2026-01-27 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 796 -80 -9.13 687 -15.41 0.0406
2025-10-15 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 876 -11 -1.24 811 -7.53 0.0883
2025-07-17 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 887 -215 -19.51 878 -15.75 0.1080
2025-04-23 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 1,102 12 1.10 1,042 4.31 0.1449
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,090 720 194.59 999 205.20 0.1421
2024-10-29 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 370 -1,823 -83.13 328 32,600.00 0.0777
2024-07-11 2024-06-30 13F COSTCO WHOLESALE COM 22160K105 2,193 0 0.00 2 0.00 0.0959
2024-04-02 2024-03-31 13F COSTCO WHOLESALE COM 22160K105 2,193 0 0.00 2 0.00 0.1258
2024-01-02 2023-12-31 13F COSTCO WHOLESALE COM 22160K105 2,193 -678 -23.62 1 0.00 0.0785
2023-10-10 2023-09-30 13F COSTCO WHOLESALE COM 22160K105 2,871 0 0.00 2 0.00 0.0879
2023-07-05 2023-06-30 13F COSTCO WHOLESALE COM 22160K105 2,871 -404 -12.34 2 0.00 0.0819
2023-04-03 2023-03-31 13F COSTCO WHOLESALE COM 22160K105 3,275 -164 -4.77 2 0.00 0.0897
2023-01-06 2022-12-31 13F COSTCO WHOLESALE COM 22160K105 3,439 -225 -6.14 2 -99.94 0.0929
2022-10-03 2022-09-30 13F COSTCO WHOLESALE COM 22160K105 3,664 0 0.00 1,730 -1.48 0.1165
2022-07-11 2022-06-30 13F COSTCO WHOLESALE COM 22160K105 3,664 -500 -12.01 1,756 -26.77 0.1181
2022-04-04 2022-03-31 13F COSTCO WHOLESALE COM 22160K105 4,164 500 13.65 2,398 15.29 0.1508
2022-01-11 2021-12-31 13F COSTCO WHOLESALE COM 22160K105 3,664 0 0.00 2,080 27.22 0.1323
2021-10-18 2021-09-30 13F COSTCO WHOLESALE COM 22160K105 3,664 0 0.00 1,635 12.76 0.1076
2021-07-07 2021-06-30 13F COSTCO WHOLESALE COM 22160K105 3,664 -4,083 -52.70 1,450 -46.91 0.0964
2021-05-03 2021-03-31 13F COSTCO WHOLESALE COM 22160K105 7,747 -498 -6.04 2,731 -12.10 0.1960
2021-02-18 2020-12-31 13F Costco Wholesale COM 22160K105 8,245 171 2.12 3,107 8.41 0.2411
2020-11-03 2020-09-30 13F Costco Wholesale COM 22160K105 8,074 1,696 26.59 2,866 48.19 0.2443
2020-07-20 2020-06-30 13F Costco Wholesale COM 22160K105 6,378 132 2.11 1,934 8.59 0.2417
2020-05-15 2020-03-31 13F COSTCO WHOLESALE CORP NEW USD 0.005 COMMON 22160K105 6,246 1,368 28.04 1,781 24.20 0.3953
2020-02-12 2019-12-31 13F COSTCO WHOLESALE CORP NEW USD 0.005 COMMON 22160K105 4,878 563 13.05 1,434 15.37 0.2959
2019-11-04 2019-09-30 13F COSTCO WHOLESALE CORP NEW USD COMMON 22160K105 4,315 -2,334 -35.10 1,243 -29.25 0.2568
2019-08-07 2019-06-30 13F COSTCO WHOLESALE CORP NEW USD COMMON 22160K105 6,649 0 0.00 1,757 9.13 0.3589
2019-05-13 2019-03-31 13F COSTCO WHOLESALE CORP NEW USD 0.005 COM 22160K105 6,649 982 17.33 1,610 39.51 0.2749
2019-05-22 2018-12-31 13F/A-1 COSTCO WHOLESALE CORP NEW USD COM 22160K105 5,667 5,667 1,154 0.2939
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.