Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionCWM Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
CWM Advisors, LLC closes position in COST / Costco Wholesale Corporation

On May 13, 2026 - CWM Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Costco Wholesale Corporation (MX:COST) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 0 -100.00 0
2026-04-23 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 5 0 0.00 5 25.00 0.0004
2026-02-17 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 5 5 4 0.0004
2023-01-26 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -2,374 -100.00 0 -100.00
2022-11-07 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 2,374 575 31.96 1,121 30.05 0.1584
2022-08-10 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 1,799 -126 -6.55 862 -22.20 0.1144
2022-04-21 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 1,925 -112 -5.50 1,108 -4.15 0.1282
2022-02-14 2021-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 2,037 -30 -1.45 1,156 24.43 0.1325
2022-02-03 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 528 -1,539 300 0.0849
2021-11-09 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 2,067 -30,524 -93.66 929 -92.80 0.1174
2021-08-10 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 32,591 2,572 8.57 12,895 21.87 1.6968
2021-04-30 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 30,019 9,133 43.73 10,581 34.46 1.6226
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 20,886 5,153 32.75 7,869 40.90 1.7403
2020-11-16 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 15,733 14,236 950.97 5,585 1,130.18 1.5368
2020-08-12 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 1,497 -153 -9.27 454 -3.61 0.1568
2020-05-08 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 1,650 -709 -30.06 471 -32.03 0.1882
2020-01-24 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 2,359 -109 -4.42 693 -2.53 0.2485
2019-11-13 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 2,468 144 6.20 711 15.80 0.2711
2019-07-16 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 2,324 79 3.52 614 12.87 0.2583
2019-05-16 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 2,245 617 37.90 544 63.86 0.2526
2019-02-21 2018-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,628 79 5.10 332 -8.79 0.2232
2019-02-21 2018-09-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,549 -70 -4.32 364 7.69 0.2243
2018-11-07 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 1,268 1,268 298
2019-02-21 2018-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,619 -42 -2.53 338 7.99 0.2402
2019-02-22 2018-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,661 351 26.79 313 28.28 0.3189
2019-02-21 2017-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 1,310 1,310 244 0.2074
2018-02-15 2017-12-31 13F Costco Wholesale COM 22160K105 389 72 0.0574
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.