코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionL & S Advisors Inc
Latest Disclosed Ownership1,450 shares
Latest Disclosed Value $ 1,444,528
L & S Advisors Inc reports 11.96% decrease in ownership of COST / Costco Wholesale Corporation

On May 11, 2026 - L & S Advisors Inc filed a 13F-HR form disclosing ownership of 1,450 shares of Costco Wholesale Corporation (MX:COST) valued at $1,444,528 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 1,647 shares of Costco Wholesale Corporation. This represents a change in shares of -11.96% 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)
2026-05-11 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,450 -197 -11.96 1,445 1.69 0.1817
2026-02-05 2025-12-31 13F COSTCO WHOLESALE COM 22160K105 1,647 215 15.01 1,420 7.17 0.1313
2025-11-07 2025-09-30 13F COSTCO WHOLESALE COM 22160K105 1,432 -5,744 -80.04 1,326 -81.35 0.1274
2025-08-08 2025-06-30 13F COSTCO WHOLESALE COM 22160K105 7,176 1,388 23.98 7,104 29.78 0.7033
2025-05-09 2025-03-31 13F COSTCO WHOLESALE COM 22160K105 5,788 -2,387 -29.20 5,475 -26.92 0.6754
2025-02-12 2024-12-31 13F COSTCO WHOLESALE COM 22160K105 8,175 64 0.79 7,490 4.17 0.8210
2024-11-12 2024-09-30 13F COSTCO WHOLESALE COM 22160K105 8,111 56 0.70 7,191 5.02 0.7516
2024-08-09 2024-06-30 13F COSTCO WHOLESALE COM 22160K105 8,055 -1,096 -11.98 6,846 2.12 0.7805
2024-05-10 2024-03-31 13F COSTCO WHOLESALE COM 22160K105 9,151 -192 -2.06 6,704 8.71 0.7579
2024-02-13 2023-12-31 13F COSTCO WHOLESALE COM 22160K105 9,343 -890 -8.70 6,167 6.70 0.7516
2023-11-13 2023-09-30 13F COSTCO WHOLESALE COM 22160K105 10,233 90 0.89 5,781 5.86 0.8305
2023-08-14 2023-06-30 13F COSTCO WHOLESALE COM 22160K105 10,143 9,255 1,042.23 5,461 1,138.10 0.7285
2023-05-10 2023-03-31 13F COSTCO WHOLESALE COM 22160K105 888 -9,948 -91.81 441 -91.08 0.0618
2023-02-13 2022-12-31 13F COSTCO WHOLESALE COM 22160K105 10,836 1,486 15.89 4,947 12.00 0.9158
2022-11-14 2022-09-30 13F COSTCO WHOLESALE COM 22160K105 9,350 -4,140 -30.69 4,416 -31.70 0.7782
2022-08-12 2022-06-30 13F COSTCO WHOLESALE COM 22160K105 13,490 2,304 20.60 6,466 0.39 1.0794
2022-05-11 2022-03-31 13F COSTCO WHOLESALE COM 22160K105 11,186 -7,604 -40.47 6,441 -39.62 0.7627
2022-02-09 2021-12-31 13F COSTCO WHOLESALE COM 22160K105 18,790 867 4.84 10,667 32.44 1.1503
2021-11-09 2021-09-30 13F COSTCO WHOLESALE COM 22160K105 17,923 -500 -2.71 8,054 10.50 0.8698
2021-08-12 2021-06-30 13F COSTCO WHOLESALE COM 22160K105 18,423 15,682 572.13 7,289 654.55 0.7842
2021-05-10 2021-03-31 13F COSTCO WHOLESALE COM 22160K105 2,741 -9,530 -77.66 966 -79.10 0.1097
2021-02-16 2020-12-31 13F COSTCO WHOLESALE COM 22160K105 12,271 -5,215 -29.82 4,623 -25.53 0.5355
2020-11-13 2020-09-30 13F COSTCO WHOLESALE COM 22160K105 17,486 -662 -3.65 6,208 12.81 0.8537
2020-08-13 2020-06-30 13F COSTCO WHOLESALE COM 22160K105 18,148 -1,235 -6.37 5,503 -0.43 0.8207
2020-05-13 2020-03-31 13F COSTCO WHOLESALE COM 22160K105 19,383 -4,523 -18.92 5,527 -21.34 1.0432
2020-02-13 2019-12-31 13F COSTCO WHOLESALE COM 22160K105 23,906 -970 -3.90 7,026 -1.97 0.8986
2019-11-13 2019-09-30 13F COSTCO WHOLESALE COM 22160K105 24,876 11,854 91.03 7,167 108.28 1.0029
2019-08-13 2019-06-30 13F COSTCO WHOLESALE COM 22160K105 13,022 -409 -3.05 3,441 5.81 0.4543
2019-05-14 2019-03-31 13F COSTCO WHOLESALE COM 22160K105 13,431 9,960 286.95 3,252 359.97 0.4374
2019-02-14 2018-12-31 13F COSTCO WHOLESALE COM 22160K105 3,471 -100 -2.80 707 -15.73 0.1327
2018-11-14 2018-09-30 13F COSTCO WHOLESALE COM 22160K105 3,571 215 6.41 839 19.69 0.1087
2018-08-13 2018-06-30 13F COSTCO WHOLESALE COM 22160K105 3,356 271 8.78 701 20.65 0.1180
2018-05-14 2018-03-31 13F COSTCO WHOLESALE COM 22160K105 3,085 515 20.04 581 21.55 0.1107
2018-02-14 2017-12-31 13F COSTCO WHOLESALE COM 22160K105 2,570 200 8.44 478 22.88 0.0733
2017-11-14 2017-09-30 13F COSTCO WHOLESALE COM 22160K105 2,370 -439 -15.63 389 -13.36 0.0651
2017-08-14 2017-06-30 13F COSTCO WHOLESALE COM 22160K105 2,809 176 6.68 449 1.58 0.0789
2017-05-12 2017-03-31 13F COSTCO WHOLESALE COM 22160K105 2,633 -540 -17.02 442 -12.99 0.0843
2017-02-15 2016-12-31 13F COSTCO WHOLESALE COM 22160K105 3,173 205 6.91 508 12.14 0.1153
2016-11-14 2016-09-30 13F COSTCO WHOLESALE COM 22160K105 2,968 663 28.76 453 25.14 0.1252
2016-08-15 2016-06-30 13F COSTCO WHOLESALE COM 22160K105 2,305 2,305 0.00 362 0.0822
2016-05-13 2016-03-31 13F COSTCO WHOLESALE COM 22160K105 0 -23,826 -100.00 0 -100.00
2016-02-10 2015-12-31 13F COSTCO WHOLESALE COM 22160K105 23,826 2,079 9.56 3,848 22.39 0.9640
2015-11-13 2015-09-30 13F COSTCO WHOLESALE COM 22160K105 21,747 21,747 0.00 3,144 0.9143
2015-07-21 2015-06-30 13F COSTCO WHOLESALE COM 22160K105 0 -44,117 -100.00 0 -100.00
2015-05-14 2015-03-31 13F COSTCO WHOLESALE COM 22160K105 44,117 44,117 1,039.09 6,683 1,398.43 1.7602
2014-02-11 2013-12-31 13F COSTCO WHOLESALE COM 22160K105 0 -3,873 -100.00 0 -100.00
2013-11-12 2013-09-30 13F COSTCO WHOLESALE COM 22160K105 3,873 3,873 446 0.1806
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.