Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InstitutionAlps Advisors Inc
Latest Disclosed Ownership6,403 shares
Latest Disclosed Value $ 6,380,141
Alps Advisors Inc reports 6.70% decrease in ownership of COST / Costco Wholesale Corporation

On May 8, 2026 - Alps Advisors Inc filed a 13F-HR form disclosing ownership of 6,403 shares of Costco Wholesale Corporation (US:COST) valued at $6,380,141 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 6,863 shares of Costco Wholesale Corporation. This represents a change in shares of -6.70% during the quarter. The current value of the position is $6,158,597 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 6,403 -460 -6.70 6,380 7.81 0.0300
2026-02-12 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 6,863 -432 -5.92 5,918 -12.35 0.0345
2025-11-05 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 7,295 -2,736 -27.28 6,752 -32.00 0.0376
2025-08-11 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 10,031 -748 -6.94 9,930 -2.59 0.0573
2025-04-30 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 10,779 -532 -4.70 10,195 -1.63 0.0591
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 11,311 -172 -1.50 10,364 1.81 0.0654
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 11,483 -6,826 -37.28 10,180 -34.59 0.0681
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 18,309 -45 -0.25 15,562 15.74 0.1068
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 18,354 -232 -1.25 13,447 9.60 0.0952
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 18,586 -49 -0.26 12,268 16.53 0.0965
2023-11-14 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 18,635 4,310 30.09 10,528 36.51 0.0874
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 14,325 413 2.97 7,712 11.57 0.0670
2023-05-10 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 13,912 -583 -4.02 6,912 4.47 0.0611
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 14,495 -1,046 -6.73 6,617 -9.86 0.0590
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 15,541 -6,886 -30.70 7,340 -31.71 0.0694
2022-08-15 2022-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 22,427 15,993 248.57 10,748 190.09 0.1045
2022-08-11 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 22,427 15,993 10,748 0.1029
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 6,434 664 11.51 3,705 13.10 0.0402
2022-02-09 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 5,770 -535 -8.49 3,276 15.64 0.0369
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 6,305 -926 -12.81 2,833 -0.98 0.0273
2021-08-11 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 7,231 460 6.79 2,861 19.86 0.0253
2021-05-07 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 6,771 6,771 2,387 0.0233
2020-11-05 2020-09-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 0 -660 -100.00 0 -100.00
2020-08-05 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 660 -72 -9.84 200 -4.31 0.0027
2020-05-06 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 732 -469 -39.05 209 -40.79 0.0032
2020-02-07 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 1,201 -51 -4.07 353 -2.22 0.0028
2019-11-04 2019-09-30 13F COSTCO WHOLESALE COMMON STOCK 22160K105 1,252 1,252 361 0.0028
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.