Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
DEL PRIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionPrivate Advisory Group LLC
Latest Disclosed Ownership27,602 shares
Latest Disclosed Value $ 27,503,670
Private Advisory Group LLC reports 14.79% increase in ownership of CTO / Costco Wholesale Corporation

On May 8, 2026 - Private Advisory Group LLC filed a 13F-HR form disclosing ownership of 27,602 shares of Costco Wholesale Corporation (DE:CTO) valued at $23,983,378 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 24,046 shares of Costco Wholesale Corporation. This represents a change in shares of 14.79% during the quarter. The current value of the position is $23,268,486 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)
2026-05-08 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 27,602 3,556 14.79 27,504 32.64 1.0234
2026-01-15 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 24,046 2,399 11.08 20,735 3.49 1.6248
2025-11-10 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 21,647 -7,536 -25.82 20,037 -30.64 1.6468
2025-08-07 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 29,183 42 0.14 28,890 4.82 2.6144
2025-05-08 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 29,141 1,981 7.29 27,561 10.75 3.0790
2025-04-11 2024-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 27,160 2,383 9.62 24,886 13.29 2.7876
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 27,160 2,383 24,886 2.7876
2024-10-09 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 24,777 -3,053 -10.97 21,966 -7.14 2.6212
2024-07-23 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 27,830 0 0.00 23,655 16.02 3.0789
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 27,830 2,832 11.33 20,389 23.57 2.9085
2024-02-13 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 24,998 5,346 27.20 16,501 48.62 2.8640
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 19,652 -3,788 -16.16 11,102 -12.02 2.1941
2024-01-12 2023-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 23,440 -151 -0.64 12,620 7.66 2.4999
2023-08-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 23,440 -151 12,620 2.4999
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 23,591 -1,809 -7.12 11,722 1.09 2.4933
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 25,400 -72 -0.28 11,595 -3.62 2.5360
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 25,472 -2,606 -9.28 12,030 -10.60 2.7482
2022-08-12 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 28,078 10,115 56.31 13,457 30.09 3.0489
2022-05-13 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 17,963 -11,695 -39.43 10,344 -38.56 2.0257
2022-01-27 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 29,658 2,069 7.50 16,837 35.82 3.1757
2021-10-22 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 27,589 839 3.14 12,397 17.13 3.0249
2021-08-02 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 26,750 410 1.56 10,584 14.00 2.6650
2021-04-08 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 26,340 6,038 29.74 9,284 21.38 2.6623
2021-02-05 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 20,302 5,405 36.28 7,649 44.65 2.5276
2020-10-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 14,897 -3,539 -19.20 5,288 -5.40 2.1291
2020-07-21 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 18,436 493 2.75 5,590 9.27 2.2884
2020-04-24 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 17,943 -961 -5.08 5,116 -7.92 2.6064
2020-01-30 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 18,904 3,601 23.53 5,556 26.01 2.2208
2019-10-23 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 15,303 -73 -0.47 4,409 8.52 1.9365
2019-07-25 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 15,376 -2,617 -14.54 4,063 10.86 1.8637
2019-04-17 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 17,993 0 0.00 3,665 0.00 2.0573
2019-02-11 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 17,993 4,842 36.82 3,665 21.96 2.0573
2018-11-07 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 13,151 -40 -0.30 3,005 9.00 1.5330
2018-08-06 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 13,191 292 2.26 2,757 13.41 1.3820
2018-04-30 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 12,899 -4,613 -26.34 2,431 -25.41 1.4987
2018-01-30 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 17,512 1,538 9.63 3,259 24.20 1.7557
2017-11-08 2017-09-30 13F COSTCO WHOLESALE COM 22160K105 15,974 -932 -5.51 2,624 -2.96 1.5547
2017-08-14 2017-06-30 13F COSTCO WHOLESALE COM 22160K105 16,906 9,384 124.75 2,704 114.43 1.6103
2017-05-15 2017-03-31 13F COSTCO WHOLESALE CORP COM 22160K105 7,522 7,522 1,261 0.8457
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.