Costco Wholesale Corporation
AT ˙ WBAG ˙ US22160K1051
855,00 € ↑14,50 (1,73%)
2026-06-05
CENA AKCJI
SecurityAT:COST / Costco Wholesale Corporation
InstitutionPerpetual Ltd
Latest Disclosed Ownership2,338 shares
Latest Disclosed Value $ 2,329,654
Perpetual Ltd reports 31.94% increase in ownership of COST / Costco Wholesale Corporation

On April 14, 2026 - Perpetual Ltd filed a 13F-HR form disclosing ownership of 2,338 shares of Costco Wholesale Corporation (AT:COST) valued at $2,015,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 1,772 shares of Costco Wholesale Corporation. This represents a change in shares of 31.94% during the quarter. The current value of the position is $1,998,990 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)
2026-04-14 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 2,338 566 31.94 2,330 52.42 0.0176
2026-01-20 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,772 117 7.07 1,528 -0.20 0.0221
2025-10-10 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,655 871 111.10 1,532 97.29 0.0190
2025-07-11 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 784 -5 -0.63 776 4.02 0.0091
2025-04-24 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 789 72 10.04 746 13.72 0.0090
2025-01-17 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 717 -166 -18.80 657 -16.11 0.0077
2024-10-09 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 883 5 0.57 783 4.83 0.0085
2024-07-30 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 878 -10 -1.13 746 14.77 0.0081
2024-04-16 2024-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 888 176 24.72 651 38.59 0.0064
2024-04-10 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 888 176 651 0.0040
2024-02-15 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 712 0 0.00 470 16.67 0.0048
2023-10-10 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 712 -200 -21.93 402 -18.13 0.0042
2023-07-13 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 912 0 0.00 491 8.39 0.0042
2023-05-08 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 912 -5,188 -85.05 453 -79.09 0.0039
2020-12-08 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 6,100 0 0.00 2,166 17.08 0.1559
2020-12-08 2020-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 6,100 1,212 24.80 1,850 32.71 0.1730
2020-11-18 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 6,100 1,212 3,902 171,658.4885
2020-12-08 2020-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 4,888 3,676 303.30 1,394 291.57 0.1972
2020-11-18 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 4,888 3,676 3,720 197,146.7774
2020-02-12 2019-12-31 13F Costco Wholesale COM 22160K105 1,212 0 0.00 356 2.01 0.0529
2019-10-10 2019-09-30 13F Costco Wholesale COM 22160K105 1,212 0 0.00 349 9.06 0.0537
2019-07-30 2019-06-30 13F Costco Wholesale COM 22160K105 1,212 -400 -24.81 320 -17.95 0.0509
2019-05-06 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 1,612 0 0.00 390 19.63 0.0564
2019-02-08 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 1,612 0 0.00 326 -13.98 0.0489
2018-10-30 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 1,612 0 0.00 379 12.46 0.0509
2018-07-23 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 1,612 -400 -19.88 337 -11.08 0.0410
2018-04-18 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 2,012 0 0.00 379 0.80 0.0516
2018-02-12 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 2,012 300 17.52 376 39.78 0.0486
2017-11-01 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 1,712 -25,346 -93.67 269 -93.78 0.0375
2017-09-26 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 27,058 -1,282 -4.52 4,327 -8.67 0.3382
2017-09-26 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 28,340 830 3.02 4,738 7.56 0.4705
2017-09-26 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 27,510 21,106 329.58 4,405 350.87 0.6713
2017-09-26 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 6,404 2,603 68.48 977 63.65 0.0801
2017-09-26 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 3,801 300 8.57 597 8.15 0.0594
2017-09-26 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 3,501 -200 -5.40 552 -7.69 0.0560
2017-09-26 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 3,701 -4,100 -52.56 598 -46.99 0.0668
2017-09-26 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 7,801 -600 -7.14 1,128 -0.62 0.1341
2017-09-26 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 8,401 6,912 464.20 1,135 402.21 0.1303
2017-09-26 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 1,489 0 0.00 226 7.11 0.0255
2017-09-26 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 1,489 1,489 211 0.0248
2017-09-26 2013-09-30 13F COSTCO WHSL CORP COM 22160K105 0 0 0 0.0000
2017-09-26 2013-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -8,001 -100.00 0 -100.00
2017-09-25 2013-03-31 13F COSTCO WHSL CORP COM 22160K105 8,001 8,001 7,152 1.0171
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.