Costco Wholesale Corporation
GB ˙ LSE ˙ US22160K1051
968,99 USD ↑7,98 (0,83%)
2026-06-04
CENA AKCJI
SecurityGB:0I47 / Costco Wholesale Corporation
InstitutionEthic Inc.
Latest Disclosed Ownership19,848 shares
Latest Disclosed Value $ 19,776,742
Ethic Inc. reports 14.73% increase in ownership of 0I47 / Costco Wholesale Corporation

On April 27, 2026 - Ethic Inc. filed a 13F-HR form disclosing ownership of 19,848 shares of Costco Wholesale Corporation (GB:0I47) valued at $19,728,118 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 17,299 shares of Costco Wholesale Corporation. This represents a change in shares of 14.73% during the quarter. The current value of the position is $19,232,514 USD.

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)
2026-04-27 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 19,848 2,549 14.73 19,777 32.57 0.3097
2026-02-03 2025-12-31 13F COSTCO WHOLESALE COM 22160K105 17,299 1,610 10.26 14,918 2.72 0.2294
2025-10-17 2025-09-30 13F COSTCO WHOLESALE COM 22160K105 15,689 975 6.63 14,522 0.19 0.2389
2025-07-30 2025-06-30 13F COSTCO WHOLESALE COM 22160K105 14,714 -54 -0.37 14,495 2.84 0.2596
2025-05-13 2025-03-31 13F COSTCO WHOLESALE COM 22160K105 14,768 1,588 12.05 14,095 16.71 0.2856
2025-02-14 2024-12-31 13F COSTCO WHOLESALE COM 22160K105 13,180 2,760 26.49 12,076 58.21 0.2437
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 10,420 -593 -5.38 7,634 -18.45 0.1929
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 11,013 593 5.69 9,361 22.63 0.2195
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 10,420 224 2.20 7,634 13.42 0.1929
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 10,196 1,503 17.29 6,730 37.04 0.1991
2023-11-14 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 8,693 1,399 19.18 4,911 25.09 0.1723
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 7,294 658 9.92 3,927 19.08 0.1456
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 6,636 -41 -0.61 3,297 8.20 0.1338
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 6,677 507 8.22 3,048 4.56 0.1647
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 6,170 1,006 19.48 2,914 17.74 0.1978
2022-08-10 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 5,164 1,951 60.72 2,475 33.78 0.1725
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 3,213 554 20.83 1,850 22.60 0.1277
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 2,659 77 2.98 1,509 30.09 0.1163
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 2,582 400 18.33 1,160 34.41 0.1187
2021-08-10 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 2,182 69 3.27 863 15.84 0.1046
2021-05-13 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 2,113 -124 -5.54 745 -11.63 0.1328
2021-02-10 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 2,237 -727 -24.53 843 -19.87 0.2229
2020-10-27 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 2,964 1,098 58.84 1,052 85.87 0.4023
2020-08-12 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 1,866 412 28.34 566 36.39 0.3221
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 1,454 660 83.12 415 78.11 0.3465
2020-05-22 2019-12-31 13F/A-2 COSTCO WHSL CORP COM 22160K105 794 794 233 4.8970
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.