Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
DEL PRIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionAffiance Financial, LLC
Latest Disclosed Ownership461 shares
Latest Disclosed Value $ 460,346
Affiance Financial, LLC reports 2.90% increase in ownership of CTO / Costco Wholesale Corporation

On April 14, 2026 - Affiance Financial, LLC filed a 13F-HR form disclosing ownership of 461 shares of Costco Wholesale Corporation (DE:CTO) valued at $400,563 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 448 shares of Costco Wholesale Corporation. This represents a change in shares of 2.90% during the quarter. The current value of the position is $388,623 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 461 13 2.90 460 18.86 0.0746
2026-01-21 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 448 8 1.82 387 -5.15 0.0623
2025-10-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 440 10 2.33 408 -4.23 0.0743
2025-07-10 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 430 -142 -24.83 427 -21.26 0.0867
2025-04-09 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 572 -19 -3.21 542 -0.18 0.1262
2025-01-21 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 591 -60 -9.22 542 -6.07 0.1296
2024-10-11 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 651 70 12.05 578 16.80 0.1402
2024-08-01 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 581 30 5.44 495 22.58 0.1291
2024-04-15 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 551 7 1.29 404 12.26 0.1094
2024-01-10 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 544 0 0.00 359 16.94 0.1045
2023-10-11 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 544 -8 -1.45 307 3.37 0.1561
2023-07-12 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 552 -5 -0.90 297 7.61 0.1448
2023-04-18 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 557 0 0.00 277 8.66 0.1465
2023-01-20 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 557 133 31.37 254 27.00 0.1031
2022-10-27 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 424 424 200 0.1127
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.