Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionWagner Wealth Management, Llc
Latest Disclosed Ownership361 shares
Latest Disclosed Value $ 360,052
Wagner Wealth Management, Llc ownership in COST / Costco Wholesale Corporation

On April 24, 2026 - Wagner Wealth Management, Llc filed a 13F-HR form disclosing ownership of 361 shares of Costco Wholesale Corporation (MX:COST) valued at $360,052 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 361 shares of Costco Wholesale Corporation. This represents a change in shares of 0.00% 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)
2026-04-24 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 361 0 0.00 360 15.76 0.0727
2026-01-30 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 361 31 9.39 311 1.97 0.0662
2025-10-21 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 330 0 0.00 305 -6.44 0.0709
2025-07-17 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 330 11 3.45 326 7.95 0.0744
2025-04-18 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 319 1 0.31 302 3.78 0.0753
2025-01-29 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 318 -12 -3.64 292 -0.34 0.0752
2024-10-11 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 330 -21 -5.98 293 -2.01 0.0790
2024-07-18 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 351 351 298 0.0892
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -205 -100.00 0 -100.00
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 205 19 10.22 97 8.99 0.0719
2022-08-11 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 186 186 89 0.0709
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 0 -180 -100.00 0 -100.00
2022-02-15 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 180 15 9.09 102 25.93 0.0780
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 165 -30 -15.38 81 5.19 0.0646
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 195 1 0.52 77 13.24 0.0552
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 194 194 68 0.0534
2021-02-09 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -1,089 -100.00 0 -100.00
2018-11-05 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 1,089 101 10.22 256 23.67 0.1706
2018-08-01 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 988 0 0.00 207 11.29 0.1494
2018-05-10 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 988 140 16.51 186 15.53 0.1418
2018-02-22 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 848 848 161 0.1204
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.