Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionPacitti Group Inc.
Latest Disclosed Ownership897 shares
Latest Disclosed Value $ 893,414
Pacitti Group Inc. reports 2.28% increase in ownership of COST / Costco Wholesale Corporation

On May 6, 2026 - Pacitti Group Inc. filed a 13F-HR form disclosing ownership of 897 shares of Costco Wholesale Corporation (MX:COST) valued at $893,414 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 877 shares of Costco Wholesale Corporation. This represents a change in shares of 2.28% 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)
2026-05-06 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 897 20 2.28 893 18.12 0.3229
2026-02-05 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 877 12 1.39 756 -5.50 0.2783
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 865 -26 -2.92 801 -9.19 0.3100
2025-07-31 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 891 34 3.97 882 8.77 0.3823
2025-05-09 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 857 15 1.78 811 5.06 0.3844
2025-02-07 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 842 -12 -1.41 771 1.85 0.3644
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 854 19 2.28 757 6.62 0.3572
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 835 56 7.19 710 24.56 0.3714
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 779 5 0.65 571 9.83 0.3083
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 774 774 519 0.3238
2022-02-08 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -255 -100.00 0 -100.00
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 255 0 0.00 115 15.00 0.0718
2021-08-16 2021-06-30 13F COSTCO WHOLESALE CORP COM COM 22160K105 255 -20 -7.27 100 4.17 0.0601
2021-05-17 2021-03-31 13F COSTCO WHOLESALE CORP COM COM 22160K105 275 0 0.00 96 -6.80 0.0634
2021-02-16 2020-12-31 13F COSTCO WHOLESALE CORP COM COM 22160K105 275 0 0.00 103 6.19 0.0741
2020-11-16 2020-09-30 13F COSTCO WHOLESALE CORP COM COM 22160K105 275 -125 -31.25 97 -28.68 0.0780
2020-08-12 2020-06-30 13F COSTCO WHOLESALE CORP COM COM 22160K105 400 -464 -53.70 136 -44.72 0.1067
2020-05-12 2020-03-31 13F COSTCO WHOLESALE CORP COM COM 22160K105 864 334 63.02 246 57.69 0.2433
2020-02-13 2019-12-31 13F COSTCO WHOLESALE CORP COM COM 22160K105 530 80 17.78 156 20.00 0.1265
2019-11-18 2019-09-30 13F COSTCO WHOLESALE CORP COM COM 22160K105 450 450 130 0.1393
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.