Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionIbex Wealth Advisors
Latest Disclosed Ownership986 shares
Latest Disclosed Value $ 982,180
Ibex Wealth Advisors ownership in COST / Costco Wholesale Corporation

On April 30, 2026 - Ibex Wealth Advisors filed a 13F-HR form disclosing ownership of 986 shares of Costco Wholesale Corporation (MX:COST) valued at $982,180 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 0 shares of Costco Wholesale Corporation.

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 Common Stock 22160K105 986 986 982 0.0915
2026-02-17 2025-12-31 13F COSTCO WHOLESALE Common Stock 22160K105 0 -100.00 0
2025-11-12 2025-09-30 13F COSTCO WHOLESALE Common Stock 22160K105 925 -4,789 -83.81 856 -84.87 0.0820
2025-08-07 2025-06-30 13F COSTCO WHOLESALE Common Stock 22160K105 5,714 153 2.75 5,656 7.55 0.6035
2025-04-15 2025-03-31 13F COSTCO WHOLESALE Common Stock 22160K105 5,561 299 5.68 5,259 9.09 0.6956
2025-01-23 2024-12-31 13F COSTCO WHOLESALE Common Stock 22160K105 5,262 5,262 4,821 0.5677
2024-11-04 2024-09-30 13F COSTCO WHOLESALE COM 22160K105 0 -6,826 -100.00 0 -100.00
2024-08-06 2024-06-30 13F COSTCO WHOLESALE COM 22160K105 6,826 6,110 853.35 5,802 0.9053
2024-04-18 2024-03-31 13F COSTCO WHOLESALE COM 22160K105 716 712 17,800.00 0 -100.00 0.0886
2024-01-29 2023-12-31 13F COSTCO WHOLESALE COM 22160K105 4 -3,003 -99.87 2 100.00 0.5052
2023-11-07 2023-09-30 13F COSTCO WHOLESALE COM 22160K105 3,007 2,400 395.39 2 0.4324
2023-05-15 2023-03-31 13F COSTCO WHOLESALE Common Stock 22160K105 607 -109 -15.22 0 0.0783
2023-02-06 2022-12-31 13F COSTCO WHOLESALE Common Stock 22160K105 716 -3,303 -82.18 0 -100.00 0.0739
2022-10-31 2022-09-30 13F COSTCO WHOLESALE Common Stock 22160K105 4,019 3,172 374.50 1,898 367.49 0.4933
2022-08-16 2022-06-30 13F COSTCO WHOLESALE Common Stock 22160K105 847 -4,157 -83.07 406 -85.91 0.0935
2022-05-16 2022-03-31 13F COSTCO WHOLESALE Common Stock 22160K105 5,004 4,620 1,203.12 2,882 1,222.02 0.5519
2022-02-22 2021-12-31 13F COSTCO WHOLESALE Common Stock 22160K105 384 50 14.97 218 45.33 0.0386
2021-11-12 2021-09-30 13F COSTCO WHOLESALE Common Stock 22160K105 334 334 150 0.0289
2019-11-12 2019-09-30 13F COSTCO WHOLESALE Common Stock 22160K105 0 -5,552 -100.00 0 -100.00
2019-07-30 2019-06-30 13F COSTCO WHOLESALE Common Stock 22160K105 5,552 5,552 1,467 0.4232
2019-02-01 2018-12-31 13F COSTCO WHOLESALE COM 22160K105 0 -12,148 -100.00 0 -100.00
2018-10-05 2018-09-30 13F COSTCO WHOLESALE COM 22160K105 12,148 647 5.63 2,850 35.65 1.0201
2018-09-24 2018-06-30 13F COSTCO WHOLESALE COM 22160K105 11,501 0 0.00 2,101 0.00 0.8412
2018-06-13 2018-03-31 13F COSTCO WHOLESALE COM 22160K105 11,501 1,492 14.91 2,101 11.40 0.8525
2018-02-12 2017-12-31 13F COSTCO WHOLESALE COM 22160K105 10,009 344 3.56 1,886 26.24 0.8349
2017-11-13 2017-09-30 13F COSTCO WHOLESALE Common Stock 22160K105 9,665 565 6.21 1,494 8.73 0.5536
2017-08-14 2017-06-30 13F/A-1 COSTCO WHOLESALE Common Stock 22160K105 9,100 3,355 58.40 1,374 43.27 0.5407
2017-08-10 2017-06-30 13F COSTCO WHOLESALE Common Stock 22160K105 164,000 -5,581 1,374
2017-05-24 2017-03-31 13F COSTCO WHOLESALE Common Stock 22160K105 5,745 149 2.66 959 4.35 0.5914
2017-03-24 2016-12-31 13F COSTCO WHOLESALE Common Stock 22160K105 5,596 -4,780,404 -99.88 919 -99.87 0.4400
2016-11-07 2016-09-30 13F COSTCO WHOLESALE COM 22160K105 4,786,000 4,786,000 730,000 0.4000
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.