Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionActivest Wealth Management
Latest Disclosed Ownership488 shares
Latest Disclosed Value $ 486,064
Activest Wealth Management reports 1.24% increase in ownership of COST / Costco Wholesale Corporation

On April 15, 2026 - Activest Wealth Management filed a 13F-HR form disclosing ownership of 488 shares of Costco Wholesale Corporation (MX:COST) valued at $486,064 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 482 shares of Costco Wholesale Corporation. This represents a change in shares of 1.24% 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 488 6 1.24 486 17.11 0.0854
2026-01-30 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 482 -125 -20.59 415 -26.16 0.0776
2025-11-03 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 607 257 73.43 562 62.43 0.1138
2025-07-29 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 350 12 3.55 347 8.46 0.0836
2025-05-15 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 338 177 109.94 320 117.01 0.0857
2025-01-28 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 161 3 1.90 147 5.76 0.0412
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 158 1 0.64 140 4.51 0.0432
2024-07-30 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 157 0 0.00 134 15.65 0.0440
2024-04-24 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 157 2 1.29 115 12.75 0.0555
2024-01-19 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 155 0 0.00 102 17.24 0.0564
2023-10-10 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 155 1 0.65 87 278.26 0.0538
2023-07-21 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 154 0 0.00 24 -69.33 0.0163
2023-04-18 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 154 -1,137 -88.07 76 -87.27 0.0486
2023-01-18 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 1,291 93 7.76 589 4.06 0.1743
2022-10-13 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,198 1,103 1,161.05 566 1,157.78 0.1829
2022-10-13 2022-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 95 -143 -60.08 45 -67.15 0.0318
2022-07-15 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 114 -124 54 0.0357
2022-04-26 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 238 -151 -38.82 137 -38.01 0.0881
2022-01-13 2021-12-31 13F COSTCO WHOLESALE COM 22160K105 389 109 38.93 221 75.40 0.1366
2021-10-12 2021-09-30 13F COSTCO WHOLESALE COM 22160K105 280 -52 -15.66 126 -3.82 0.0839
2021-09-20 2021-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 332 -34 -9.29 131 1.55 0.0984
2021-09-20 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 332 332 131 0.0984
2021-09-20 2021-03-31 13F COSTCO WHOLESALE COM 22160K105 366 366 129 0.1054
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.