코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionGreen Square Capital Advisors Llc
Latest Disclosed Ownership838 shares
Latest Disclosed Value $ 835,303
Green Square Capital Advisors Llc reports 3.08% increase in ownership of COST / Costco Wholesale Corporation

On May 7, 2026 - Green Square Capital Advisors Llc filed a 13F-HR form disclosing ownership of 838 shares of Costco Wholesale Corporation (MX:COST) valued at $835,303 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 813 shares of Costco Wholesale Corporation. This represents a change in shares of 3.08% 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 CORPORATION COM Stock 22160K105 838 25 3.08 835 19.12 0.0880
2026-02-09 2025-12-31 13F COSTCO WHOLESALE CORPORATION COM Stock 22160K105 813 150 22.62 701 6.86 0.0728
2025-11-14 2025-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 663 0 0.00 657 0.00 0.0779
2025-07-30 2025-06-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 663 0 0.00 657 4.63 0.0778
2025-04-21 2025-03-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 663 -27 -3.91 627 -0.79 0.0950
2025-02-14 2024-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 690 -332 -32.49 632 -30.17 0.0869
2024-11-07 2024-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 1,022 0 0.00 905 4.26 0.1271
2024-08-14 2024-06-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 1,022 87 9.30 869 26.72 0.1200
2024-05-15 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 935 526 128.61 685 153.70 0.0912
2024-01-18 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 409 34 9.07 270 27.36 0.0365
2023-10-10 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 375 -16 -4.09 212 0.95 0.0283
2023-07-13 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 391 391 211 0.0265
2022-03-08 2021-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 0 -448 -100.00 0 -100.00
2021-10-19 2021-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 448 448 201 0.0456
2016-02-10 2015-12-31 13F COSTCO WHOLESALE Stock 22160K105 0 0 0 0.0000
2015-11-12 2015-09-30 13F COSTCO WHOLESALE Stock 22160K105 0 -2,529 -100.00 0 -100.00
2015-08-12 2015-06-30 13F COSTCO WHOLESALE Stock 22160K105 2,529 2,529 342 0.0760
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.