Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InstitutionFull Sail Capital, LLC
Latest Disclosed Ownership534 shares
Latest Disclosed Value $ 494,286
Full Sail Capital, LLC reports 39.52% decrease in ownership of COST / Costco Wholesale Corporation

On November 14, 2025 - Full Sail Capital, LLC filed a 13F-HR form disclosing ownership of 534 shares of Costco Wholesale Corporation (US:COST) valued at $494,286 USD as of September 30, 2025. The entity filed a previous 13F-HR on August 14, 2025 disclosing 883 shares of Costco Wholesale Corporation. This represents a change in shares of -39.52% during the quarter. The current value of the position is $518,979 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)
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 534 -349 -39.52 494 -43.48 0.0273
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 883 253 40.16 874 46.89 0.0505
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 630 -13 -2.02 596 1.02 0.0385
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 643 35 5.76 589 9.28 0.0375
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 608 -150 -19.79 539 -16.30 0.0345
2024-08-15 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 758 -15 -1.94 644 13.78 0.0433
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 773 -12 -1.53 566 9.27 0.0395
2024-02-13 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 785 6 0.77 518 17.73 0.0394
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 779 -362 -31.73 440 -28.34 0.0382
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 1,141 -107 -8.57 614 -0.97 0.0524
2023-05-05 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 1,248 339 37.29 620 49.76 0.0560
2023-02-06 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 909 -127 -12.26 415 -15.34 0.0394
2022-11-09 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,036 -73 -6.58 489 -7.91 0.0506
2022-08-08 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 1,109 -1,091 -49.59 531 -58.09 0.0513
2022-05-12 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 2,200 -910 -29.26 1,267 -14.62 0.1058
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 3,110 -200 -6.04 1,484 -0.20 0.1303
2021-10-26 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 3,310 -1,009 -23.36 1,487 -12.99 0.1298
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 4,319 -154 -3.44 1,709 6.08 0.1554
2021-05-12 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 4,473 11 0.25 1,611 -1.10 0.1607
2021-02-11 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 4,462 -110 -2.41 1,629 -7.50 0.1766
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 4,572 -98 -2.10 1,761 10.89 0.2203
2020-08-14 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 4,670 -667 -12.50 1,588 -2.76 0.2266
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 5,337 -492 -8.44 1,633 -11.11 0.2911
2020-02-14 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 5,829 -16 -0.27 1,837 3.73 0.3856
2019-11-20 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 5,845 -70 -1.18 1,771 9.32 0.4216
2019-08-14 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 5,915 45 0.77 1,620 14.00 0.4606
2019-05-31 2019-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 5,870 -428 -6.80 1,421 10.76 0.4537
2019-05-16 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 5,870 -428 1,421
2019-02-14 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 6,298 6,298 1,283 0.6218
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.