Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionSnider Financial Group
Latest Disclosed Ownership5,142 shares
Latest Disclosed Value $ 5,123,722
Snider Financial Group reports 8.72% decrease in ownership of COST / Costco Wholesale Corporation

On April 15, 2026 - Snider Financial Group filed a 13F-HR form disclosing ownership of 5,142 shares of Costco Wholesale Corporation (MX:COST) valued at $5,123,722 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 5,633 shares of Costco Wholesale Corporation. This represents a change in shares of -8.72% 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)
2026-04-15 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 5,142 -491 -8.72 5,124 5.48 1.5461
2026-01-21 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 5,633 73 1.31 4,858 -5.62 1.2945
2025-11-07 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 5,560 -183 -3.19 5,147 -9.47 1.4039
2025-08-05 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 5,743 8 0.14 5,685 4.81 1.6398
2025-04-11 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 5,735 -393 -6.41 5,424 -3.40 1.7623
2025-02-06 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 6,128 1,342 28.04 5,615 32.31 1.7393
2024-11-06 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 4,786 -46 -0.95 4,243 3.31 1.5532
2024-08-02 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 4,832 -99 -2.01 4,107 13.70 1.5857
2024-04-30 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 4,931 -73 -1.46 3,613 9.36 1.5061
2024-01-22 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 5,004 200 4.16 3,303 21.70 1.5220
2023-10-25 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 4,804 211 4.59 2,714 9.79 1.3121
2023-07-19 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 4,593 2,417 111.08 2,473 128.68 1.1825
2023-04-10 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,176 2,176 1,081 0.5763
2022-08-15 2022-06-30 13F Costco Wholesale Common Stock 22160K105 0 -409 -100.00 0 -100.00
2022-05-16 2022-03-31 13F/A-1 Costco Wholesale Common Stock 22160K105 409 0 0.00 236 1.72 0.1074
2022-05-13 2022-03-31 13F Costco Wholesale Common Stock 22160K105 409 0 236 0.1073
2022-01-18 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 409 0 0.00 232 15.42 0.0984
2021-11-05 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 409 409 201 0.0876
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.