Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionFinancial Partners Group, Inc
Latest Disclosed Ownership1,120 shares
Latest Disclosed Value $ 1,116,226
Financial Partners Group, Inc reports 40.96% decrease in ownership of COST / Costco Wholesale Corporation

On April 10, 2026 - Financial Partners Group, Inc filed a 13F-HR form disclosing ownership of 1,120 shares of Costco Wholesale Corporation (MX:COST) valued at $1,116,226 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 1,897 shares of Costco Wholesale Corporation. This represents a change in shares of -40.96% 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)
2026-04-10 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,120 -777 -40.96 1,116 -37.41 0.1335
2026-02-03 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,897 -367 -16.21 1,784 -14.89 0.2063
2025-10-17 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 2,264 0 0.00 2,095 -6.51 0.2610
2025-07-15 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 2,264 -421 -15.68 2,242 -11.74 0.3100
2025-05-06 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 2,685 390 16.99 2,539 20.79 0.3920
2025-01-24 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 2,295 -32 -1.38 2,103 1.94 0.3068
2024-10-30 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 2,327 100 4.49 2,063 8.99 0.3053
2024-07-19 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,227 -18 -0.80 1,893 15.09 0.2987
2024-05-07 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,245 36 1.63 1,645 12.76 0.2623
2024-02-09 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,209 -15 -0.67 1,458 16.45 0.2615
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,224 -79 -3.43 1,253 -1.49 0.2583
2023-08-08 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 2,303 -17 -0.73 1,272 10.33 0.2575
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,320 -37 -1.57 1,153 -3.44 0.2564
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 2,357 317 15.54 1,194 23.88 0.2625
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 2,040 -23 -1.11 963 -2.63 0.2536
2022-08-12 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 2,063 1 0.05 989 -16.68 0.2480
2022-04-29 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 2,062 169 8.93 1,187 24.16 0.2569
2022-02-10 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 1,893 366 23.97 956 39.36 0.2089
2021-11-05 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 1,527 1 0.07 686 13.58 0.1616
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 1,526 9 0.59 604 12.90 0.1556
2021-05-04 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 1,517 2 0.13 535 -2.73 0.1518
2021-02-16 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 1,515 517 51.80 550 55.37 0.1646
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 998 -10 -0.99 354 15.69 0.1216
2020-08-10 2020-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,008 9 0.90 306 6.99 0.1196
2020-08-06 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 1,008 9 306 114,725.7642
2020-05-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 999 999 286 0.1773
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.