코스트코 도매공사
DE ˙ XTRA ˙ US22160K1051
€843.00 ↑27.00 (3.31%)
2026-06-04
주가
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionFirst Washington CORP
Latest Disclosed Ownership6,338 shares
Latest Disclosed Value $ 6,315,373
First Washington CORP reports 0.05% decrease in ownership of CTO / Costco Wholesale Corporation

On May 14, 2026 - First Washington CORP filed a 13F-HR form disclosing ownership of 6,338 shares of Costco Wholesale Corporation (DE:CTO) valued at $5,507,088 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 6,341 shares of Costco Wholesale Corporation. This represents a change in shares of -0.05% during the quarter. The current value of the position is $5,342,934 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 6,338 -3 -0.05 6,315 15.49 1.7868
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 6,341 -66 -1.03 5,468 -7.79 1.4164
2025-11-13 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 6,407 0 0.00 5,931 -6.50 1.5899
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 6,407 0 0.00 6,343 4.67 2.0446
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 6,407 -2,516 -28.20 6,060 -25.88 2.1271
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 8,923 -32 -0.36 8,176 2.99 2.8900
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 8,955 -1,349 -13.09 7,939 -9.36 3.1535
2024-08-12 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 10,304 97 0.95 8,758 17.13 3.2422
2024-05-13 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 10,207 0 0.00 7,478 10.98 2.8587
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 10,207 -837 -7.58 6,737 7.98 2.5906
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 11,044 90 0.82 6,239 5.80 2.5210
2023-08-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 10,954 0 0.00 5,897 8.36 2.5858
2023-05-12 2023-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 10,954 1,538 16.33 5,443 135,950.00 2.6910
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 10,954 1,538 5 2.6912
2023-02-14 2022-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 9,416 1,780 23.31 4 -99.89 2.1055
2023-02-13 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 9,416 1,780 4 0.0021
2022-11-10 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 7,636 831 12.21 3,606 10.55 1.8180
2022-08-10 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 6,805 4,415 184.73 3,262 137.06 1.5145
2022-05-11 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 2,390 0 0.00 1,376 1.40 0.5554
2022-02-10 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 2,390 0 0.00 1,357 26.35 0.5252
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 2,390 0 0.00 1,074 13.53 0.3915
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 2,390 0 0.00 946 12.35 0.3526
2021-05-13 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 2,390 2,390 842 0.3329
2019-02-08 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -280 -100.00 0 -100.00
2018-11-13 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 66 11.86 0.0314
2018-08-10 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 59 11.32 0.0292
2018-05-04 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 53 1.92 0.0275
2018-02-07 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 52 13.04 0.0245
2017-11-07 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 46 -89.73 0.0229
2017-08-10 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 448 853.19 0.0224
2017-05-05 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 47 4.44 0.0258
2017-02-09 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 280 0 0.00 45 4.65 0.0247
2016-11-03 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 280 -1,500 -84.27 43 -84.64 0.0241
2016-08-05 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 280 0.00 0.1609
2016-05-09 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 280 -2.44 0.1655
2016-02-11 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 287 11.67 0.1672
2015-11-10 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 257 7.08 0.1551
2015-08-07 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 240 -11.11 0.1338
2015-05-11 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 270 7.14 0.1566
2015-02-12 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 1,780 0 0.00 252 12.50 0.1493
2014-11-10 2014-09-30 13F COSTCO WHSL CORP COM 22160K105 1,780 -8,000 -81.80 224 -80.11 0.1280
2014-08-13 2014-06-30 13F COSTCO WHSL CORP COM 22160K105 9,780 0 0.00 1,126 3.11 0.6297
2014-05-05 2014-03-31 13F COSTCO WHSL CORP COM 22160K105 9,780 0 0.00 1,092 -6.19 0.6302
2014-02-14 2013-12-31 13F COSTCO WHSL CORP COM 22160K105 9,780 -554 -5.36 1,164 -2.18 0.6323
2013-11-14 2013-09-30 13F COSTCO WHSL CORP COM 22160K105 10,334 0 0.00 1,190 4.11 0.9328
2013-08-07 2013-06-30 13F COSTCO WHSL CORP COM 22160K105 10,334 10,334 1,143 0.9272
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.