Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
AKTIENPREIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionCoastline Trust Co
Latest Disclosed Ownership10,239 shares
Latest Disclosed Value $ 10,202,447
Coastline Trust Co reports 0.67% decrease in ownership of CTO / Costco Wholesale Corporation

On April 3, 2026 - Coastline Trust Co filed a 13F-HR form disclosing ownership of 10,239 shares of Costco Wholesale Corporation (DE:CTO) valued at $8,896,667 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 5, 2026 disclosing 10,308 shares of Costco Wholesale Corporation. This represents a change in shares of -0.67% during the quarter. The current value of the position is $8,631,477 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-04-03 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 10,239 -69 -0.67 10,202 14.77 1.0122
2026-01-05 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 10,308 578 5.94 8,889 -1.30 0.8360
2025-10-21 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 9,730 0 0.00 9,006 -6.50 0.9666
2025-07-17 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 9,730 39 0.40 9,632 5.10 1.1032
2025-04-28 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 9,691 -14 -0.14 9,166 3.07 1.1393
2025-02-13 2024-12-31 13F Costco Wholesale COM 22160K105 9,705 683 7.57 8,892 11.18 1.0411
2024-11-06 2024-09-30 13F Costco Wholesale COM 22160K105 9,022 324 3.72 7,998 8.18 0.9398
2024-07-15 2024-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,698 116 1.35 7,393 17.59 0.8656
2024-04-26 2024-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,582 -77 -0.89 6,287 10.01 0.7598
2024-01-23 2023-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,659 1,057 13.90 5,716 33.09 0.7600
2023-10-18 2023-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,602 -1,140 -13.04 4,295 -8.75 0.6332
2023-08-07 2023-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,742 4 0.05 4,707 8.41 0.6591
2023-05-31 2023-03-31 13F/A-1 COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,738 5 0.06 4,342 8.91 0.6430
2023-04-12 2023-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,733 0 3,987 0.3258
2023-02-09 2022-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,733 1,044 13.58 3,987 9.78 0.5939
2022-11-03 2022-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,689 51 0.67 3,631 -0.82 0.5809
2022-07-22 2022-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,638 389 5.37 3,661 -12.31 0.5415
2022-05-04 2022-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,249 13 0.18 4,175 1.63 0.5071
2022-02-10 2021-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,236 88 1.23 4,108 27.90 0.4686
2021-11-09 2021-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,148 413 6.13 3,212 20.53 0.3996
2021-08-10 2021-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 6,735 170 2.59 2,665 15.17 0.3298
2021-05-10 2021-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 6,565 -730 -10.01 2,314 -15.82 0.2983
2021-02-12 2020-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,295 -75 -1.02 2,749 5.08 0.3663
2020-10-15 2020-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,370 -195 -2.58 2,616 14.04 0.3932
2020-08-07 2020-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,565 70 0.93 2,294 7.35 0.3622
2020-06-10 2020-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 7,495 -990 -11.67 2,137 -14.31 0.3859
2020-01-15 2019-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 8,485 -1,727 -16.91 2,494 -15.23 0.3457
2019-10-18 2019-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,212 -228 -2.18 2,942 6.63 0.4329
2019-07-18 2019-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,440 -295 -2.75 2,759 6.16 0.4011
2019-04-25 2019-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,735 1,290 13.66 2,599 35.08 0.3881
2019-01-15 2018-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 9,445 -505 -5.08 1,924 -17.67 0.3317
2018-10-17 2018-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 9,950 -295 -2.88 2,337 9.15 0.3349
2018-07-27 2018-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,245 -20 -0.19 2,141 10.70 0.3228
2018-04-16 2018-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,265 -170 -1.63 1,934 -0.41 0.2971
2018-01-17 2017-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 10,435 5,935 131.89 1,942 162.79 0.2922
2017-11-17 2017-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 4,500 -170 -3.64 739 -1.07 0.1289
2017-08-10 2017-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 4,670 -190 -3.91 747 -8.34 0.1354
2017-04-19 2017-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 4,860 -125 -2.51 815 2.13 0.1522
2017-01-17 2016-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 4,985 0 0.00 798 5.00 0.1568
2016-10-20 2016-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 4,985 -90 -1.77 760 -4.64 0.1487
2016-07-18 2016-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,075 0 0.00 797 -0.37 0.1610
2016-04-15 2016-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,075 0 0.00 800 -2.44 0.1707
2016-01-15 2015-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,075 25 0.50 820 12.33 0.1800
2015-10-30 2015-09-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,050 -70 -1.37 730 5.64 0.1662
2015-07-22 2015-06-30 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,120 0 0.00 691 -10.95 0.1445
2015-04-17 2015-03-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,120 -140 -2.66 776 4.02 0.1593
2015-01-21 2014-12-31 13F COSTCO WHOLESALE CORP COMMON STOCK 22160K105 5,260 5,260 746 0.1558
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.