코스트코 도매공사
AT ˙ WBAG ˙ US22160K1051
€855.00 ↑14.50 (1.73%)
2026-06-05
주가
SecurityAT:COST / Costco Wholesale Corporation
InstitutionResources Management Corp /ct/ /adv
Latest Disclosed Ownership13,424 shares
Latest Disclosed Value $ 13,376
Resources Management Corp /ct/ /adv reports 0.44% decrease in ownership of COST / Costco Wholesale Corporation

On May 15, 2026 - Resources Management Corp /ct/ /adv filed a 13F-HR form disclosing ownership of 13,424 shares of Costco Wholesale Corporation (AT:COST) valued at $11,571,488 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,483 shares of Costco Wholesale Corporation. This represents a change in shares of -0.44% during the quarter. The current value of the position is $11,477,520 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)
2026-05-15 2026-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,424 -59 -0.44 13 18.18 1.7755
2026-02-13 2025-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,483 1,212 9.88 12 0.00 1.5063
2025-11-14 2025-09-30 13F/A-1 COSTCO WHOLESALE Ordinary Share 22160K105 12,271 200 1.66 11 0.00 1.4680
2025-11-14 2025-09-30 13F CROWDSTRIKE HOLDINGS Ordinary Share 22160K105 13,448 1,377 7 0.8520
2025-08-15 2025-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,071 -76 -0.63 12 0.00 1.6225
2025-05-16 2025-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,147 141 1.17 11 0.00 1.6155
2025-02-14 2024-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,006 -83 -0.69 11 10.00 1.5015
2024-11-15 2024-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,089 -192 -1.56 11 0.00 1.4458
2024-08-14 2024-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,281 -317 -2.52 10 11.11 1.5194
2024-05-15 2024-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 12,598 -1,546 -10.93 9 0.00 1.3488
2024-02-14 2023-12-31 13F/A-1 COSTCO WHOLESALE Ordinary Share 22160K105 14,144 -455 -3.12 9 12.50 1.3869
2024-02-14 2023-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 660 9
2023-11-16 2023-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 14,599 -361 -2.41 8 0.00 1.3430
2023-08-16 2023-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 14,960 13,960 1,396.00 8 1.2569
2023-05-11 2023-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 1,000 -14,313 -93.47 0 -100.00 0.0066
2023-02-08 2022-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 15,313 -173 -1.12 7 -99.92 1.1037
2022-11-15 2022-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 15,486 399 2.64 7,313 1.13 1.2619
2022-08-10 2022-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 15,087 1,139 8.17 7,231 -9.97 1.1685
2022-05-20 2022-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,948 54 0.39 8,032 1.83 1.1223
2022-02-04 2021-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,894 -47 -0.34 7,888 25.91 1.0265
2021-11-12 2021-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,941 89 0.64 6,265 14.30 0.9007
2021-08-10 2021-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,852 319 2.36 5,481 14.91 0.7699
2021-05-13 2021-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 13,533 1,953 16.87 4,770 9.33 0.7211
2021-02-16 2020-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 11,580 1,530 15.22 4,363 22.28 0.7018
2020-11-12 2020-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 10,050 696 7.44 3,568 25.81 0.6442
2020-08-11 2020-06-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 9,354 354 3.93 2,836 10.52 0.5424
2020-05-04 2020-03-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 9,000 1,217 15.64 2,566 12.15 0.5724
2020-02-13 2019-12-31 13F COSTCO WHOLESALE Ordinary Share 22160K105 7,783 305 4.08 2,288 6.22 0.3962
2019-12-04 2019-09-30 13F COSTCO WHOLESALE Ordinary Share 22160K105 7,478 2,514 50.64 2,154 113.06 0.3984
2019-02-21 2018-12-31 13F COSTCO WHOLESALE Ordinary Shares 22160K105 4,964 1,921 63.13 1,011 41.60 0.2250
2018-11-15 2018-09-30 13F COSTCO WHOLESALE Ordinary Shares 22160K105 3,043 3,043 714 0.1302
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.