Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
DEL PRIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionSolstein Capital, LLC
Latest Disclosed Ownership2,226 shares
Latest Disclosed Value $ 2,218,053
Solstein Capital, LLC reports 6.00% decrease in ownership of CTO / Costco Wholesale Corporation

On May 14, 2026 - Solstein Capital, LLC filed a 13F-HR form disclosing ownership of 2,226 shares of Costco Wholesale Corporation (DE:CTO) valued at $1,934,171 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,368 shares of Costco Wholesale Corporation. This represents a change in shares of -6.00% during the quarter. The current value of the position is $1,876,518 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)
2026-05-14 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 2,226 -142 -6.00 2,218 8.62 0.9104
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 2,368 0 0.00 2,042 -6.80 0.8190
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 2,368 0 0.00 2,192 -6.53 0.4975
2025-08-01 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 2,368 132 5.90 2,344 10.88 1.2032
2025-04-17 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 2,236 0 0.00 2,115 3.22 1.2305
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 2,236 0 0.00 2,049 3.33 1.1449
2024-10-29 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 2,236 0 0.00 1,982 4.32 1.0498
2024-07-26 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,236 -99 -4.24 1,901 11.11 1.2401
2024-04-24 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,335 -4 -0.17 1,711 10.82 1.1860
2024-01-23 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,339 4 0.17 1,544 16.98 1.1422
2023-10-25 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,335 0 0.00 1,319 4.93 1.1340
2023-07-27 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 2,335 62 2.73 1,257 11.34 1.0479
2023-04-19 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,273 707 45.15 1,129 58.12 0.9827
2023-02-02 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 1,566 235 17.66 715 13.51 0.5981
2022-11-01 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,331 423 46.59 629 44.60 0.5541
2022-08-09 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 908 778 598.46 435 480.00 0.3331
2022-05-05 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 130 -977 -88.26 75 -88.06 0.0494
2022-01-27 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 1,107 1,101 18,350.00 628 20,833.33 0.3785
2021-10-27 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 6 0 0.00 3 50.00 0.0017
2021-08-12 2021-06-30 13F COSTCO WHSL CORP NEW COM COM 22160K105 6 6 2 0.0025
2020-11-12 2020-09-30 13F Costco Wholesale Common 22160K105 0 -756 -100.00 0 -100.00
2020-08-12 2020-06-30 13F Costco Wholesale Common 22160K105 756 0 0.00 229 6.02 0.5437
2020-05-12 2020-03-31 13F Costco Wholesale Common 22160K105 756 -356 -32.01 216 -33.94 0.8316
2020-02-12 2019-12-31 13F Costco Wholesale Common 22160K105 1,112 1,112 327 0.6584
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.