Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionEULAV Asset Management
Latest Disclosed Ownership28,700 shares
Latest Disclosed Value $ 28,597,541
EULAV Asset Management reports 48.84% decrease in ownership of COST / Costco Wholesale Corporation

On May 7, 2026 - EULAV Asset Management filed a 13F-HR form disclosing ownership of 28,700 shares of Costco Wholesale Corporation (MX:COST) valued at $28,597,541 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 56,100 shares of Costco Wholesale Corporation. This represents a change in shares of -48.84% 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.

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)
2026-05-07 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 28,700 -27,400 -48.84 28,598 -40.89 0.9154
2026-02-11 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 56,100 0 0.00 48,377 -6.84 1.2904
2025-10-28 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 56,100 0 0.00 51,928 -6.50 1.2069
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 56,100 -1,000 -1.75 55,536 2.83 1.3039
2025-04-30 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 57,100 -5,200 -8.35 54,004 -5.39 1.3338
2025-01-28 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 62,300 -1,500 -2.35 57,084 0.93 1.3748
2024-11-08 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 63,800 -5 -0.01 56,560 4.29 1.3766
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 63,805 0 0.00 54,234 16.02 1.4660
2024-05-30 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 63,805 2 0.00 46,745 10.99 1.2855
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 63,803 0 0.00 42,115 16.84 1.3023
2023-11-14 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 63,803 3 0.00 36,046 4.94 1.3178
2023-08-10 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 63,800 0 0.00 34,349 8.35 1.2801
2023-04-27 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 63,800 0 0.00 31,700 8.84 1.2496
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 63,800 -1,500 -2.30 29,125 -5.56 1.2501
2022-11-04 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 65,300 0 0.00 30,839 -1.46 1.3647
2022-07-22 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 65,300 -18,106 -21.71 31,297 -34.84 1.2915
2022-05-10 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 83,406 4,997 6.37 48,029 7.90 1.4295
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 78,409 0 0.00 44,513 26.34 1.1230
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 78,409 -3 -0.00 35,233 13.56 0.9297
2021-08-06 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 78,412 0 0.00 31,025 12.25 0.8201
2021-04-30 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 78,412 1,005 1.30 27,639 -5.23 0.7406
2021-02-16 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 77,407 7 0.01 29,165 6.14 0.7623
2020-11-05 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 77,400 -35 -0.05 27,477 17.03 0.8102
2020-08-11 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 77,435 -6 -0.01 23,479 6.33 0.7687
2020-04-27 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 77,441 41 0.05 22,081 -2.94 0.8832
2020-02-13 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 77,400 0 0.00 22,749 2.01 0.7850
2019-11-12 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 77,400 4,400 6.03 22,300 15.60 0.8230
2019-08-05 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 73,000 8,000 12.31 19,291 21.54 0.7232
2019-05-13 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 65,000 0 0.00 15,872 19.87 0.6540
2019-02-13 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 65,000 -9,000 -12.16 13,241 -23.82 0.6614
2018-10-26 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 17,381 12.39 0.7446
2018-08-14 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 15,465 10.91 0.7114
2018-05-09 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 13,944 1.24 0.6667
2018-02-14 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 13,773 13.29 0.6506
2017-11-14 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 12,157 2.72 0.5743
2017-08-14 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 11,835 -4.63 0.5801
2017-05-11 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 74,000 0 0.00 12,409 4.73 0.6326
2017-02-14 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 74,000 4,000 5.71 11,848 10.98 0.6377
2016-11-10 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 70,000 0 0.00 10,676 -2.88 0.5652
2016-08-15 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 70,000 4,000 6.06 10,993 5.70 0.6032
2016-05-12 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 66,000 2,000 3.12 10,400 0.62 0.5805
2016-02-16 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 64,000 0 0.00 10,336 11.72 0.5657
2015-11-16 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 64,000 8,000 14.29 9,252 22.33 0.5259
2015-08-17 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 56,000 0 0.00 7,563 -10.86 0.3967
2015-04-28 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 56,000 0 0.00 8,484 6.88 0.4371
2015-01-14 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 56,000 -9,000 -13.85 7,938 -2.55 0.4271
2014-11-17 2014-09-30 13F COSTCO WHSL CORP COM 22160K105 65,000 -24,000 -26.97 8,146 -20.52 0.4431
2014-07-30 2014-06-30 13F COSTCO WHSL CORP COM 22160K105 89,000 11,500 14.84 10,249 18.42 0.5493
2014-05-08 2014-03-31 13F COSTCO WHSL CORP COM 22160K105 77,500 7,000 9.93 8,655 3.16 0.4711
2014-02-18 2013-12-31 13F COSTCO WHSL CORP COM 22160K105 70,500 0 0.00 8,390 3.38 0.4574
2013-11-01 2013-09-30 13F COSTCO WHSL CORP COM 22160K105 70,500 0 0.00 8,116 4.12 0.4721
2013-08-14 2013-06-30 13F COSTCO WHSL CORP COM 22160K105 70,500 70,500 7,795 0.4747
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.