Costco Wholesale Corporation
IT ˙ BIT ˙ US22160K1051
836,20 € ↑12,80 (1,55%)
2026-06-04
DELAT PRIS
SecurityIT:1COST / Costco Wholesale Corporation
InstitutionEllevest, Inc.
Latest Disclosed Ownership790 shares
Latest Disclosed Value $ 787,224
Ellevest, Inc. reports 4.36% decrease in ownership of 1COST / Costco Wholesale Corporation

On May 11, 2026 - Ellevest, Inc. filed a 13F-HR form disclosing ownership of 790 shares of Costco Wholesale Corporation (IT:1COST) valued at $710,131 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 826 shares of Costco Wholesale Corporation. This represents a change in shares of -4.36% during the quarter. The current value of the position is $660,598 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)
2026-05-11 2026-03-31 13F COSTCO WHOLESALE CORPORATION COM COM 22160K105 790 -36 -4.36 787 10.53 0.1095
2026-02-10 2025-12-31 13F COSTCO WHOLESALE CORPORATION COM COM 22160K105 826 -6 -0.72 712 -7.53 0.0985
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 832 -140 -14.40 770 -19.96 0.1100
2025-08-05 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 972 -11 -1.12 962 3.55 0.1535
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 983 -77 -7.26 929 -4.33 0.0619
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,060 -59 -5.27 971 -2.02 0.0561
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 1,119 16 1.45 992 5.76 0.0549
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 1,103 6 0.55 938 16.69 0.0563
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 1,097 51 4.88 804 16.38 0.0499
2024-02-06 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 1,046 -59 -5.34 691 10.58 0.0471
2023-11-09 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 1,105 -101 -8.37 624 -3.85 0.0480
2023-08-09 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 1,206 80 7.10 649 16.10 0.0488
2023-05-04 2023-03-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 1,126 22 1.99 560 11.13 0.0435
2023-02-03 2022-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 1,104 -1,088 -49.64 504 -51.40 0.0424
2022-11-02 2022-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,192 -58 -2.58 1,035 -3.99 0.0981
2022-07-18 2022-06-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,250 119 5.58 1,078 -12.14 0.1012
2022-04-19 2022-03-31 13F COSTCO WHSL CORP Stock 22160K105 2,131 24 1.14 1,227 2.59 0.1035
2022-01-24 2021-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,107 -67 -3.08 1,196 22.42 0.1064
2021-10-19 2021-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,174 69 3.28 977 17.29 0.0950
2021-07-13 2021-06-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,105 1 0.05 833 12.26 0.0827
2021-05-03 2021-03-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,104 -200 -8.68 742 -14.52 0.0895
2021-02-04 2020-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,304 -525 -18.56 868 -13.55 0.1270
2020-10-26 2020-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,829 520 22.52 1,004 43.43 0.1803
2020-07-06 2020-06-30 13F COSTCO WHSL CORP Stock 22160K105 2,309 81 3.64 700 10.24 0.1497
2020-04-13 2020-03-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 2,228 1,283 135.77 635 128.42 0.1757
2020-02-05 2019-12-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 945 282 42.53 278 45.55 0.0773
2019-10-08 2019-09-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 663 -32,773 -98.02 191 -6.83 0.0669
2019-08-20 2019-06-30 13F COSTCO WHSL CORP NEW COM Stock 22160K105 33,436 542 1.65 205 247.46 0.0815
2019-05-01 2019-03-31 13F COSTCO WHSL CORP NEW COM Stock 22160K105 32,894 32,659 13,897.45 59 22.92 0.0281
2019-01-25 2018-12-31 13F COSTCO WHSL CORP NEW COM Common Stock 22160K105 235 235 48 0.0244
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.