코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionBaskin Financial Services Inc.
Latest Disclosed Ownership64,278 shares
Latest Disclosed Value $ 64,049
Baskin Financial Services Inc. reports 2.44% decrease in ownership of COST / Costco Wholesale Corporation

On April 13, 2026 - Baskin Financial Services Inc. filed a 13F-HR form disclosing ownership of 64,278 shares of Costco Wholesale Corporation (MX:COST) valued at $64,049 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 65,886 shares of Costco Wholesale Corporation. This represents a change in shares of -2.44% 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)
2026-04-13 2026-03-31 13F Costco Wholesale CS 22160K105 64,278 -1,608 -2.44 64 14.29 5.2446
2026-01-27 2025-12-31 13F Costco Wholesale CS 22160K105 65,886 -617 -0.93 57 -8.20 4.2764
2025-10-09 2025-09-30 13F Costco Wholesale CS 22160K105 66,503 -302 -0.45 62 -7.58 4.5249
2025-07-24 2025-06-30 13F Costco Wholesale CS 22160K105 66,805 -628 -0.93 66 4.76 5.0008
2025-04-28 2025-03-31 13F Costco Wholesale CS 22160K105 67,433 -1,387 -2.02 64 0.00 5.1851
2025-01-24 2024-12-31 13F Costco Wholesale CS 22160K105 68,820 -1,360 -1.94 63 1.61 5.0151
2024-10-16 2024-09-30 13F Costco Wholesale CS 22160K105 70,180 -1,120 -1.57 62 3.33 5.0928
2024-07-24 2024-06-30 13F Costco Wholesale CS 22160K105 71,300 -3,500 -4.68 61 11.11 5.1885
2024-04-26 2024-03-31 13F Costco Wholesale CS 22160K105 74,800 -478 -0.63 55 10.20 4.5906
2024-01-23 2023-12-31 13F Costco Companies CS 22160K105 75,278 -557 -0.73 50 16.67 4.4859
2023-10-17 2023-09-30 13F Costco Companies CS 22160K105 75,835 -502 -0.66 43 2.44 4.3466
2023-07-26 2023-06-30 13F Costco Companies CS 22160K105 76,337 -516 -0.67 41 7.89 3.9478
2023-04-21 2023-03-31 13F Costco Companies CS 22160K105 76,853 -1,061 -1.36 38 8.57 4.0112
2023-01-23 2022-12-31 13F Costco Companies CS 22160K105 77,914 -496 -0.63 36 -99.91 4.1169
2022-10-19 2022-09-30 13F Costco Companies CS 22160K105 78,410 -2,042 -2.54 37,031 -3.96 4.4275
2022-07-18 2022-06-30 13F Costco Companies CS 22160K105 80,452 -1,357 -1.66 38,559 -18.15 4.1761
2022-04-19 2022-03-31 13F Costco Companies CS 22160K105 81,809 -467 -0.57 47,110 0.86 4.1451
2022-01-24 2021-12-31 13F Costco Companies CS 22160K105 82,276 1,653 2.05 46,708 28.93 3.7232
2021-10-26 2021-09-30 13F Costco Companies CS 22160K105 80,623 4 0.00 36,228 13.57 3.2205
2021-07-15 2021-06-30 13F Costco Companies CS 22160K105 80,619 3,210 4.15 31,899 16.91 2.9246
2021-04-22 2021-03-31 13F Costco Companies CS 22160K105 77,409 5,548 7.72 27,285 0.77 2.8170
2021-01-27 2020-12-31 13F Costco Companies CS 22160K105 71,861 3,436 5.02 27,076 11.47 2.9929
2020-10-26 2020-09-30 13F/A-49 Costco Companies CS 22160K105 68,425 4,458 6.97 24,291 25.24 3.0909
2020-10-26 2020-09-30 13F Costco Companies CS 22160K105 68,425 24,291
2020-07-24 2020-06-30 13F Costco Companies CS 22160K105 63,967 63,967 19,395 2.8645
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.