Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionEquitable Holdings, Inc.
Latest Disclosed Ownership48,248 shares
Latest Disclosed Value $ 43,368,408
Equitable Holdings, Inc. reports 21.64% increase in ownership of COST / Costco Wholesale Corporation

On May 15, 2026 - Equitable Holdings, Inc. filed a 13F-HR form disclosing ownership of 48,248 shares of Costco Wholesale Corporation (MX:COST) valued at $43,368,408 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 39,663 shares of Costco Wholesale Corporation. This represents a change in shares of 21.64% during the quarter.

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)
2026-05-15 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 48,248 8,585 21.64 43,368 26.80 0.2434
2026-02-17 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 39,663 235 0.60 34,203 -6.28 0.2338
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 39,428 4,036 11.40 36,496 4.17 0.2684
2025-08-15 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 35,392 3,761 11.89 35,036 17.12 0.2888
2025-05-13 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 31,631 4,610 17.06 29,916 20.83 0.2840
2025-02-12 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 27,021 2,946 12.24 24,759 16.01 0.2356
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 24,075 2,051 9.31 21,343 14.01 0.2066
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 22,024 2,638 13.61 18,720 31.81 0.1969
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 19,386 1,023 5.57 14,203 17.18 0.1600
2024-02-13 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 18,363 2,134 13.15 12,121 32.20 0.1495
2023-11-14 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 16,229 2,639 19.42 9,169 25.31 0.1315
2023-08-15 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 13,590 4,434 48.43 7,317 60.83 0.1052
2023-05-15 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 9,156 1,867 25.61 4,549 36.73 0.0727
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 7,289 203 2.86 3,327 -0.60 0.0579
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 7,086 768 12.16 3,347 10.54 0.0654
2022-08-15 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 6,318 1,816 40.34 3,028 16.82 0.0578
2022-05-13 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 4,502 926 25.89 2,592 27.68 0.0424
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 3,576 181 5.33 2,030 33.03 0.0320
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 3,395 17 0.50 1,526 14.14 0.0260
2021-08-11 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 3,378 292 9.46 1,337 22.89 0.0230
2021-05-14 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 3,086 287 10.25 1,088 3.13 0.0230
2021-02-09 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 2,799 232 9.04 1,055 15.81 0.0240
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 2,567 -29 -1.12 911 15.76 0.0235
2020-08-13 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 2,596 189 7.85 787 14.72 0.0227
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 2,407 92 3.97 686 0.88 0.0246
2020-05-28 2019-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 2,315 2,315 680 0.0199
2020-02-18 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 2,315 680 0.0035
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.