코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionSeacrest Wealth Management, Llc
Latest Disclosed Ownership9,196 shares
Latest Disclosed Value $ 9,163,524
Seacrest Wealth Management, Llc reports 0.50% increase in ownership of COST / Costco Wholesale Corporation

On April 15, 2026 - Seacrest Wealth Management, Llc filed a 13F-HR form disclosing ownership of 9,196 shares of Costco Wholesale Corporation (MX:COST) valued at $9,163,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 9,150 shares of Costco Wholesale Corporation. This represents a change in shares of 0.50% 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)
2026-04-15 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 9,196 46 0.50 9,164 13.47 0.9800
2026-01-12 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 9,150 -390 -4.09 8,076 -7.46 0.8172
2025-11-13 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 9,540 -200 -2.05 8,727 -9.50 0.9206
2025-07-11 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 9,740 -714 -6.83 9,642 -2.47 1.0471
2025-04-11 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 10,454 131 1.27 9,887 4.51 1.1192
2025-01-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 10,323 53 0.52 9,459 3.90 0.9944
2024-10-16 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 10,270 452 4.60 9,105 9.10 0.9806
2024-07-22 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 9,818 320 3.37 8,345 19.93 0.9496
2024-04-18 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 9,498 -1,244 -11.58 6,959 -1.26 0.8507
2024-01-18 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 10,742 81 0.76 7,047 17.00 0.8704
2023-10-12 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 10,661 -1,820 -14.58 6,023 -10.36 0.7825
2023-07-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 12,481 205 1.67 6,720 10.17 0.8484
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 12,276 -72 -0.58 6,100 8.22 0.8262
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 12,348 -32 -0.26 5,637 -3.61 0.8085
2022-11-15 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 12,380 1,325 11.99 5,847 10.36 0.8874
2022-08-09 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 11,055 2,242 25.44 5,298 4.39 0.6669
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 8,813 -9,882 -52.86 5,075 -52.18 0.5829
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 18,695 1,012 5.72 10,613 33.56 1.1642
2021-11-16 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 17,683 41 0.23 7,946 13.84 0.9585
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 17,642 427 2.48 6,980 15.03 0.8417
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 17,215 325 1.92 6,068 -4.65 0.8034
2021-02-09 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 16,890 185 1.11 6,364 7.32 0.8948
2020-11-12 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 16,705 148 0.89 5,930 18.13 0.9503
2020-07-27 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 16,557 -177 -1.06 5,020 5.22 0.8676
2020-05-13 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 16,734 -1,591 -8.68 4,771 -11.42 1.0254
2020-01-22 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 18,325 -236 -1.27 5,386 0.71 0.9025
2019-10-15 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 18,561 386 2.12 5,348 11.35 1.0011
2019-07-19 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 18,175 403 2.27 4,803 11.62 0.9778
2019-05-10 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 17,772 27 0.15 4,303 19.03 0.7381
2019-02-13 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 17,745 -1,504 -7.81 3,615 -20.04 0.7452
2018-11-14 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 19,249 52 0.27 4,521 12.69 0.7650
2018-08-03 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 19,197 82 0.43 4,012 11.38 0.7228
2018-04-20 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 19,115 112 0.59 3,602 1.84 0.6606
2018-02-02 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 19,003 19,003 3,537 0.6467
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.