Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
AKTIENPREIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionAft, Forsyth & Company, Inc.
Latest Disclosed Ownership3,503 shares
Latest Disclosed Value $ 3,490,494
Aft, Forsyth & Company, Inc. ownership in CTO / Costco Wholesale Corporation

On May 14, 2026 - Aft, Forsyth & Company, Inc. filed a 13F-HR form disclosing ownership of 3,503 shares of Costco Wholesale Corporation (DE:CTO) valued at $3,043,757 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,503 shares of Costco Wholesale Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,953,029 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 3,503 0 0.00 3,490 15.56 1.6432
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 3,503 40 1.16 3,021 -5.77 1.3035
2025-11-07 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 3,463 10 0.29 3,205 -6.23 1.5355
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 3,453 32 0.94 3,418 5.66 1.7511
2025-05-12 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,421 0 0.00 3,236 3.22 1.7429
2025-01-29 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 3,421 -26 -0.75 3,135 2.59 1.5371
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 3,447 672 24.22 3,056 22.59 1.5065
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,775 127 4.80 2,493 28.52 1.2222
2024-04-30 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,648 -295 -10.02 1,940 -0.15 1.1053
2024-02-09 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,943 55 1.90 1,942 19.07 1.2222
2023-11-07 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,888 200 7.44 1,631 12.79 1.1956
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 2,688 0 0.00 1,447 8.31 1.0259
2023-05-02 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,688 -22 -0.81 1,335 8.01 1.0314
2023-02-13 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 2,710 17 0.63 1,237 -2.83 1.0551
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 2,693 -159 -5.58 1,272 -6.95 1.1352
2022-07-28 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 2,852 -50 -1.72 1,367 -18.19 1.1031
2022-05-10 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 2,902 220 8.20 1,671 9.72 1.0644
2022-02-07 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 2,682 -262 -8.90 1,523 15.12 0.7814
2021-11-08 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 2,944 275 10.30 1,323 25.28 0.7108
2021-07-15 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 2,669 0 0.00 1,056 12.22 0.5639
2021-05-04 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 2,669 208 8.45 941 1.51 0.5643
2021-02-09 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 2,461 50 2.07 927 8.29 0.5798
2020-11-05 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 2,411 155 6.87 856 25.15 0.6369
2020-08-06 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 2,256 430 23.55 684 31.54 0.5768
2020-05-11 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 1,826 -280 -13.30 521 -15.99 0.5236
2020-02-10 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 2,106 145 7.39 619 9.56 0.4724
2019-11-12 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 1,961 540 38.00 565 50.27 0.4667
2019-07-29 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 1,421 575 67.97 376 83.41 0.3097
2019-05-08 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 846 846 205 0.1776
2018-05-14 2018-03-31 13F Costco Wholesale COM 22160K105 0 -1,079 -100.00 0 -100.00
2018-02-12 2017-12-31 13F Costco Wholesale COM 22160K105 1,079 450 71.54 201 179.17 0.1967
2013-11-08 2013-09-30 13F Costco Wholesale COM 22160K105 629 0 0.00 72 2.86 0.0934
2013-08-12 2013-06-30 13F Costco Wholesale COM 22160K105 629 629 70 0.1001
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.