Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionPersonal Cfo Solutions, Llc
Latest Disclosed Ownership1,547 shares
Latest Disclosed Value $ 1,541,722
Personal Cfo Solutions, Llc reports 4.32% increase in ownership of COST / Costco Wholesale Corporation

On April 30, 2026 - Personal Cfo Solutions, Llc filed a 13F-HR form disclosing ownership of 1,547 shares of Costco Wholesale Corporation (MX:COST) valued at $1,541,722 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 22, 2026 disclosing 1,483 shares of Costco Wholesale Corporation. This represents a change in shares of 4.32% 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)
2026-04-30 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,547 64 4.32 1,542 20.48 0.2166
2026-01-22 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,483 -145 -8.91 1,279 -15.07 0.2031
2025-11-10 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,628 -6 -0.37 1,507 -6.86 0.2644
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,634 115 7.57 1,617 12.60 0.2992
2025-04-30 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 1,519 167 12.35 1,436 15.90 0.2916
2025-02-07 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,352 47 3.60 1,239 7.09 0.2438
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 1,305 -63 -4.61 1,157 -0.43 0.1617
2024-08-09 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 1,368 -125 -8.37 1,163 6.22 0.1787
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 1,493 17 1.15 1,094 12.32 0.1707
2024-02-13 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 1,476 487 49.24 974 74.55 0.1687
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 989 34 3.56 559 8.56 0.1104
2023-08-10 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 955 9 0.95 514 9.59 0.1043
2023-05-09 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 946 24 2.60 470 11.67 0.0970
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 922 47 5.37 421 1.69 0.0890
2022-11-01 2022-09-30 13F z COM 22160K105 875 -6 -0.68 413 -2.13 0.1037
2022-08-05 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 881 -19 -2.11 422 -18.69 0.0990
2022-05-02 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 900 119 15.24 519 16.89 0.1024
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 781 -17 -2.13 444 23.68 0.0831
2021-11-18 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 798 119 17.53 359 33.46 0.0736
2021-07-22 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 679 51 8.12 269 21.72 0.0551
2021-04-21 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 628 628 221 0.0478
2020-08-03 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -813 -100.00 0 -100.00
2020-04-30 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 813 813 232 0.0833
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.