Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionPrentice Wealth Management LLC
Latest Disclosed Ownership1,218 shares
Latest Disclosed Value $ 1,213,665
Prentice Wealth Management LLC reports 26.14% decrease in ownership of COST / Costco Wholesale Corporation

On April 17, 2026 - Prentice Wealth Management LLC filed a 13F-HR form disclosing ownership of 1,218 shares of Costco Wholesale Corporation (MX:COST) valued at $1,213,665 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 1,649 shares of Costco Wholesale Corporation. This represents a change in shares of -26.14% 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)
2026-04-17 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,218 -431 -26.14 1,214 -14.70 0.2739
2026-01-30 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,649 51 3.19 1,422 -3.85 0.3249
2025-10-09 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,598 41 2.63 1,479 -4.02 0.3647
2025-07-31 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,557 -21 -1.33 1,541 3.28 0.4050
2025-04-17 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 1,578 -159 -9.15 1,492 -6.22 0.4308
2025-02-03 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,737 42 2.48 1,592 5.93 0.4602
2024-10-07 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 1,695 -72 -4.07 1,503 0.07 0.4462
2024-07-11 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 1,767 -3 -0.17 1,502 15.82 0.4901
2024-04-15 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 1,770 50 2.91 1,297 14.19 0.4503
2024-01-11 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 1,720 13 0.76 1,135 17.74 0.4424
2023-10-16 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 1,707 4 0.23 964 5.24 0.4356
2023-07-06 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 1,703 130 8.26 917 17.29 0.4158
2023-04-14 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 1,573 967 159.57 782 182.97 0.3728
2023-01-18 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 606 49 8.80 277 5.34 0.1394
2022-10-19 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 557 7 1.27 262 -0.76 0.1431
2022-07-28 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 550 194 54.49 264 28.78 0.2689
2022-10-31 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 356 356 205 0.0984
2022-10-31 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -354 -100.00 0 -100.00
2021-11-10 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 354 32 9.94 159 25.20 0.0769
2021-08-11 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 322 -29 -8.26 127 2.42 0.0652
2021-06-17 2021-03-31 13F/A-1 COST COM 22160K105 351 351 124 0.0691
2021-06-08 2021-03-31 13F COST COM 22160K105 123,720 123,720 124 0.0691
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.