Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
CENA AKCJI
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionArgent Trust Co
Latest Disclosed Ownership22,523 shares
Latest Disclosed Value $ 22,442,597
Argent Trust Co reports 1.11% decrease in ownership of CTO / Costco Wholesale Corporation

On May 13, 2026 - Argent Trust Co filed a 13F-HR form disclosing ownership of 22,523 shares of Costco Wholesale Corporation (DE:CTO) valued at $19,570,235 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 22,775 shares of Costco Wholesale Corporation. This represents a change in shares of -1.11% during the quarter. The current value of the position is $18,986,889 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 COMMON STOCK 22160K105 22,523 -252 -1.11 22,443 14.27 0.7616
2026-02-10 2025-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 22,775 -208 -0.91 19,640 -7.68 0.6736
2025-11-12 2025-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 22,983 -267 -1.15 21,274 -7.57 0.7539
2025-08-12 2025-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,250 -323 -1.37 23,016 3.24 0.8686
2025-05-09 2025-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,573 50 0.21 22,295 3.44 0.9150
2025-02-13 2024-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,523 92 0.39 21,553 3.76 0.8787
2024-11-13 2024-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,431 -266 -1.12 20,772 3.13 0.8599
2024-08-12 2024-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,697 78 0.33 20,142 16.41 0.8868
2024-05-10 2024-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,619 587 2.55 17,304 13.82 0.7784
2024-02-09 2023-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 23,032 543 2.41 15,203 19.65 0.7563
2023-11-08 2023-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 22,489 351 1.59 12,705 6.60 0.6965
2023-08-11 2023-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 22,138 1,035 4.90 11,919 13.67 0.6457
2023-05-12 2023-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 21,103 941 4.67 10,485 13.93 0.6642
2023-02-10 2022-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 20,162 502 2.55 9,204 -0.88 0.6087
2022-11-10 2022-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,660 393 2.04 9,285 0.54 0.6721
2022-08-11 2022-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,267 261 1.37 9,235 -15.62 0.6336
2022-05-11 2022-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,006 -283 -1.47 10,945 -0.05 0.6673
2022-02-09 2021-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,289 -330 -1.68 10,950 24.21 0.6410
2021-11-09 2021-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,619 -186 -0.94 8,816 12.51 0.5665
2021-08-09 2021-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,805 552 2.87 7,836 15.47 0.5142
2021-05-12 2021-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 19,253 436 2.32 6,786 -4.29 0.4769
2021-02-11 2020-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,817 196 1.05 7,090 7.26 0.5479
2020-11-13 2020-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,621 -3 -0.02 6,610 17.05 0.5824
2020-08-04 2020-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,624 445 2.45 5,647 8.95 0.5291
2020-05-11 2020-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,179 -253 -1.37 5,183 -4.32 0.5825
2020-02-11 2019-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,432 42 0.23 5,417 2.25 0.4818
2019-11-12 2019-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 18,390 4,327 30.77 5,298 42.57 0.5108
2019-08-13 2019-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 14,063 1,260 9.84 3,716 19.87 0.3768
2019-05-15 2019-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 12,803 -405 -3.07 3,100 15.24 0.3246
2019-02-06 2018-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 13,208 295 2.28 2,690 -10.78 0.3157
2018-11-14 2018-09-30 13F COSTCO WHOLESALE COM 22160K105 12,913 403 3.22 3,015 15.38 0.3476
2019-04-15 2018-06-30 13F/A-1 COSTCO WHOLESALE COM 22160K105 12,510 7,008 127.37 2,613 151.98 0.3187
2018-08-15 2018-06-30 13F COSTCO WHOLESALE COM 22160K105 11,672 6,170 2,440
2018-05-15 2018-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 5,502 994 22.05 1,037 23.60 0.2974
2018-02-12 2017-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,508 -155 -3.32 839 9.53 0.3283
2017-11-13 2017-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,663 349 8.09 766 11.01 0.3021
2017-08-09 2017-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,314 -369 -7.88 690 -12.10 0.2848
2017-05-08 2017-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,683 -18 -0.38 785 4.25 0.3245
2017-02-14 2016-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,701 570 13.80 753 19.52 0.3331
2016-11-09 2016-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 4,131 285 7.41 630 4.30 0.2673
2016-08-04 2016-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 3,846 1,423 58.73 604 58.53 0.2658
2016-05-10 2016-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 2,423 120 5.21 381 2.42 0.1847
2016-02-11 2015-12-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 2,303 2,303 0.00 372 0.1852
2015-08-10 2015-06-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 0 -1,356 -100.00 0 -100.00
2015-05-07 2015-03-31 13F COSTCO WHOLESALE COMMON STOCK 22160K105 1,356 1,356 206 0.1041
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.