Costco Wholesale Corporation
AT ˙ WBAG ˙ US22160K1051
855,00 € ↑14,50 (1,73%)
2026-06-05
DEL PRIS
SecurityAT:COST / Costco Wholesale Corporation
InstitutionXponance, Inc.
Latest Disclosed Ownership130,896 shares
Latest Disclosed Value $ 130,428,718
Xponance, Inc. reports 6.91% increase in ownership of COST / Costco Wholesale Corporation

On May 13, 2026 - Xponance, Inc. filed a 13F-HR form disclosing ownership of 130,896 shares of Costco Wholesale Corporation (AT:COST) valued at $112,832,352 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 122,431 shares of Costco Wholesale Corporation. This represents a change in shares of 6.91% during the quarter. The current value of the position is $111,916,080 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)
2026-05-13 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 130,896 8,465 6.91 130,429 23.54 0.9270
2026-02-12 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 122,431 5,730 4.91 105,577 -2.26 0.7921
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 116,701 -1,459 -1.23 108,022 -7.65 0.8553
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 118,160 3,731 3.26 116,971 8.08 0.9774
2025-05-01 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 114,429 1,583 1.40 108,225 4.67 1.0466
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 112,846 1,519 1.36 103,397 4.77 0.9432
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 111,327 -1,363 -1.21 98,694 3.04 0.9528
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 112,690 9,460 9.16 95,785 26.65 0.9791
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 103,230 913 0.89 75,629 11.98 0.7925
2024-01-31 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 102,317 3,583 3.63 67,537 21.08 0.8090
2023-10-24 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 98,734 1,126 1.15 55,781 6.15 0.7589
2023-07-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 97,608 -8,214 -7.76 52,550 -0.06 0.6998
2023-04-18 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 105,822 8,371 8.59 52,580 18.19 0.7686
2023-01-24 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 97,451 9,198 10.42 44,486 6.73 0.7209
2022-10-24 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 88,253 2,175 2.53 41,679 1.03 0.8014
2022-08-02 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 86,078 -3,599 -4.01 41,255 -20.11 0.8288
2022-04-20 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 89,677 809 0.91 51,641 2.36 0.8588
2022-01-31 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 88,868 6,023 7.27 50,450 35.52 0.7915
2021-11-05 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 82,845 -2,202 -2.59 37,226 10.62 0.7070
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 85,047 14,232 20.10 33,651 34.81 0.6185
2021-05-10 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 70,815 -95 -0.13 24,961 -6.57 0.5288
2021-02-11 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 70,910 12,473 21.34 26,717 28.79 0.5818
2020-10-26 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 58,437 85 0.15 20,745 17.25 0.5099
2020-08-14 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 58,352 58,352 17,693 0.4566
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.