Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
DEL PRIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionSfmg, Llc
Latest Disclosed Ownership4,558 shares
Latest Disclosed Value $ 4,541,425
Sfmg, Llc reports 33.08% increase in ownership of CTO / Costco Wholesale Corporation

On May 12, 2026 - Sfmg, Llc filed a 13F-HR form disclosing ownership of 4,558 shares of Costco Wholesale Corporation (DE:CTO) valued at $3,960,446 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 3,425 shares of Costco Wholesale Corporation. This represents a change in shares of 33.08% during the quarter. The current value of the position is $3,842,394 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)
2026-05-12 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 4,558 1,133 33.08 4,541 53.78 0.3067
2026-02-10 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 3,425 55 1.63 2,953 -5.32 0.1980
2025-11-13 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 3,370 56 1.69 3,119 -4.94 0.2162
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 3,314 -54 -1.60 3,281 3.01 0.2463
2025-05-09 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,368 -4 -0.12 3,186 3.07 0.2514
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 3,372 -38 -1.11 3,090 2.25 0.2436
2024-11-25 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 3,410 3 0.09 3,023 4.39 0.2450
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 3,407 -64 -1.84 2,896 13.89 0.2518
2024-05-07 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 3,471 -12 -0.34 2,543 10.57 0.2186
2024-01-30 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 3,483 109 3.23 2,299 20.62 0.2130
2023-11-06 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 3,374 -31 -0.91 1,906 3.98 0.1959
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 3,405 -3 -0.09 1,833 8.27 0.1886
2023-05-01 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 3,408 89 2.68 1,693 11.75 0.1824
2023-01-25 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 3,319 -80 -2.35 1,515 -4.42 0.1681
2022-10-20 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 3,399 62 1.86 1,585 -0.88 0.1850
2022-08-08 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 3,337 179 5.67 1,599 -12.09 0.1855
2022-04-21 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 3,158 -193 -5.76 1,819 -4.36 0.1798
2022-01-31 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 3,351 1 0.03 1,902 26.38 0.1849
2021-11-01 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 3,350 467 16.20 1,505 31.90 0.1670
2021-08-06 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 2,883 42 1.48 1,141 13.99 0.1267
2021-05-03 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 2,841 100 3.65 1,001 -3.10 0.1161
2021-02-02 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 2,741 188 7.36 1,033 14.02 0.1310
2020-11-12 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 2,553 -32 -1.24 906 15.56 0.1250
2020-08-03 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 2,585 12 0.47 784 6.81 0.1117
2020-05-08 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 2,573 138 5.67 734 2.51 0.1101
2020-02-05 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 2,435 0 0.00 716 2.14 0.0876
2019-11-12 2019-09-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 2,435 -4 -0.16 701 2.19 0.0949
2019-10-29 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 2,435 -4 701 0.0949
2019-08-05 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 2,439 1 0.04 686 16.27 0.0931
2019-05-13 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 2,438 1 0.04 590 18.95 0.0853
2019-02-12 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 2,437 2,437 496 0.0802
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.