Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionNavellier & Associates Inc
Latest Disclosed Ownership5,951 shares
Latest Disclosed Value $ 5,929,689
Navellier & Associates Inc reports 5.43% decrease in ownership of COST / Costco Wholesale Corporation

On May 7, 2026 - Navellier & Associates Inc filed a 13F-HR form disclosing ownership of 5,951 shares of Costco Wholesale Corporation (MX:COST) valued at $5,929,689 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 6,293 shares of Costco Wholesale Corporation. This represents a change in shares of -5.43% 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)
2026-05-07 2026-03-31 13F Costco Wholesale COM 22160K105 5,951 -342 -5.43 5,930 9.27 0.6180
2026-02-03 2025-12-31 13F Costco Wholesale com 22160K105 6,293 -14,070 -69.10 5,427 -71.21 0.6081
2025-11-06 2025-09-30 13F Costco Wholesale COM 22160K105 20,363 819 4.19 18,849 -2.58 1.9119
2025-08-07 2025-06-30 13F Costco Wholesale COM 22160K105 19,544 -127 -0.65 19,348 -3.09 2.3964
2025-05-06 2025-03-31 13F Costco Wholesale COM 22160K105 19,671 -3,170 -13.88 19,964 -4.61 2.7575
2025-02-03 2024-12-31 13F Costco Wholesale COM 22160K105 22,841 1,201 5.55 20,928 9.09 2.5094
2024-11-12 2024-09-30 13F Costco Wholesale COM 22160K105 21,640 4,054 23.05 19,184 28.35 2.6006
2024-08-08 2024-06-30 13F Costco Wholesale COM 22160K105 17,586 827 4.93 14,948 21.75 1.7551
2024-05-14 2024-03-31 13F Costco Wholesale COM 22160K105 16,759 3,901 30.34 12,278 44.66 1.5129
2024-02-08 2023-12-31 13F Costco Wholesale COM 22160K105 12,858 1,030 8.71 8,487 27.01 1.2715
2023-11-09 2023-09-30 13F Costco Wholesale COM 22160K105 11,828 -579 -4.67 6,682 0.04 1.1444
2023-08-07 2023-06-30 13F Costco Wholesale COM 22160K105 12,407 -102 -0.82 6,680 7.47 1.3009
2023-05-12 2023-03-31 13F Costco Wholesale COM 22160K105 12,509 -729 -5.51 6,215 2.85 1.3076
2023-02-02 2022-12-31 13F Costco Wholesale COM 22160K105 13,238 -213 -1.58 6,043 -4.88 1.2313
2022-11-09 2022-09-30 13F Costco Wholesale COM 22160K105 13,451 -238 -1.74 6,353 -3.17 1.4126
2022-08-12 2022-06-30 13F Costco Wholesale COM 22160K105 13,689 12,997 1,878.18 6,561 1,548.49 1.4084
2022-04-29 2022-03-31 13F Costco Wholesale COM 22160K105 692 0 0.00 398 1.27 0.0677
2022-02-14 2021-12-31 13F Costco Wholesale COM 22160K105 692 0 0.00 393 26.37 0.0572
2021-10-28 2021-09-30 13F Costco Wholesale COM 22160K105 692 692 311 0.0469
2021-05-12 2021-03-31 13F Costco Wholesale COM 22160K105 0 -9,109 -100.00 0 -100.00
2021-02-05 2020-12-31 13F Costco Wholesale COM 22160K105 9,109 -527 -5.47 3,432 0.32 0.6214
2020-11-09 2020-09-30 13F Costco Wholesale COM 22160K105 9,636 2,579 36.55 3,421 59.86 0.7463
2020-08-12 2020-06-30 13F Costco Wholesale COM 22160K105 7,057 -5,264 -42.72 2,140 -39.08 0.5085
2020-05-13 2020-03-31 13F Costco Wholesale COM 22160K105 12,321 -139 -1.12 3,513 -4.07 0.8256
2020-02-12 2019-12-31 13F Costco Wholesale COM 22160K105 12,460 -341 -2.66 3,662 -0.70 0.5897
2019-10-16 2019-09-30 13F Costco Wholesale COM 22160K105 12,801 -231 -1.77 3,688 7.08 0.6103
2019-07-17 2019-06-30 13F Costco Wholesale COM 22160K105 13,032 13,032 3,444 0.5323
2018-05-21 2018-03-31 13F Costco Wholesale COM 22160K105 0 -2,174 -100.00 0 -100.00
2018-02-12 2017-12-31 13F Costco Wholesale COM 22160K105 2,174 -2,926 -57.37 405 -51.67 0.0757
2017-11-14 2017-09-30 13F Costco Wholesale COM 22160K105 5,100 -1,200 -19.05 838 -16.87 0.1628
2017-08-24 2017-06-30 13F Costco Wholesale COM 22160K105 6,300 -200 -3.08 1,008 -7.52 0.1506
2017-04-21 2017-03-31 13F Costco Wholesale COM 22160K105 6,500 -400 -5.80 1,090 -1.36 0.1588
2017-02-13 2016-12-31 13F Costco Wholesale COM 22160K105 6,900 1,300 23.21 1,105 29.39 0.1827
2016-10-24 2016-09-30 13F Costco Wholesale COM 22160K105 5,600 5,600 0.00 854 0.1221
2015-10-20 2015-09-30 13F Costco Wholesale COM 22160K105 0 -5,665 -100.00 0 -100.00
2015-07-08 2015-06-30 13F Costco Wholesale COM 22160K105 5,665 849 17.63 765 4.79 0.0671
2015-05-18 2015-03-31 13F Costco Wholesale COM 22160K105 4,816 2,896 150.83 730 218.78 0.0662
2014-02-03 2013-12-31 13F Costco Wholesale COM 22160K105 1,920 -375,025 -99.49 229 -99.47 0.0103
2013-11-05 2013-09-30 13F Costco Wholesale COM 22160K105 376,945 -9,965 -2.58 43,413 1.48 1.2809
2013-11-05 2013-06-30 13F/A-1 Costco Wholesale COM 22160K105 386,910 -6,721 -1.71 42,781 2.43 2.0400
2013-07-03 2013-06-30 13F Costco Wholesale COM 22160K105 416,968 46,104
2013-11-05 2013-03-31 13F/A-1 Costco Wholesale COM 22160K105 393,631 -6,696 -1.67 41,768 5.68 1.9358
2013-11-05 2012-12-31 13F/A-1 Costco Wholesale COM 22160K105 400,327 -4,265 -1.05 39,524 -2.47 1.9820
2013-11-05 2012-09-30 13F/A-1 Costco Wholesale COM 22160K105 404,592 404,592 40,524 1.9551
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.