Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InstitutionSYM FINANCIAL Corp
Latest Disclosed Ownership1,637 shares
Latest Disclosed Value $ 1,631,311
SYM FINANCIAL Corp reports 56.05% increase in ownership of COST / Costco Wholesale Corporation

On May 8, 2026 - SYM FINANCIAL Corp filed a 13F-HR form disclosing ownership of 1,637 shares of Costco Wholesale Corporation (US:COST) valued at $1,631,156 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,049 shares of Costco Wholesale Corporation. This represents a change in shares of 56.05% during the quarter. The current value of the position is $1,574,516 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 1,637 588 56.05 1,631 80.42 0.1630
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,049 -287 -21.48 905 -26.86 0.0929
2025-11-03 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,336 -615 -31.52 1,237 -35.99 0.1323
2025-08-01 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,951 156 8.69 1,932 13.79 0.2162
2025-05-06 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 1,795 266 17.40 1,698 21.13 0.2092
2025-01-24 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,529 835 120.32 1,401 127.80 0.1811
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 694 200 40.49 615 46.78 0.0823
2024-08-08 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 494 494 420 0.0669
2024-05-06 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 0 -306 -100.00 0 -100.00
2024-02-06 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 306 306 202 0.0327
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.