Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionBridgewater Associates, LP
ManagerRay Dalio, Bob Prince
Latest Disclosed Ownership27,618 shares
Latest Disclosed Value $ 27,519,404
Bridgewater Associates, LP reports 8.98% decrease in ownership of COST / Costco Wholesale Corporation

On May 15, 2026 - Bridgewater Associates, LP filed a 13F-HR form disclosing ownership of 27,618 shares of Costco Wholesale Corporation (MX:COST) valued at $27,519,404 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 30,342 shares of Costco Wholesale Corporation. This represents a change in shares of -8.98% 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 27,618 -2,724 -8.98 27,519 5.17 0.1228
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 30,342 -11,152 -26.88 26,165 -31.88 0.0954
2025-11-13 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 41,494 16,434 65.58 38,408 54.83 0.1505
2025-08-13 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 25,060 -8,086 -24.40 24,808 -20.87 0.1001
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 33,146 -47,248 -58.77 31,349 -57.44 0.1454
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 80,394 -88,497 -52.40 73,663 -50.80 0.3377
2024-11-13 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 168,891 -271,928 -61.69 149,725 -60.04 0.8479
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 440,819 -94,009 -17.58 374,692 -4.37 1.9563
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 534,828 -152,744 -22.21 391,831 -13.67 1.9814
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 687,572 -140,612 -16.98 453,853 -3.00 2.5406
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 828,184 20,475 2.53 467,891 7.60 2.8279
2023-08-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 807,709 -53,597 -6.22 434,854 1.61 2.6854
2023-05-12 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 861,306 -76,215 -8.13 427,957 0.00 2.6114
2023-02-13 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 937,521 -262,023 -21.84 427,978 -24.45 2.3362
2022-11-10 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,199,544 -11,554 -0.95 566,509 -2.40 2.8677
2022-08-11 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 1,211,098 23,331 1.96 580,455 -15.14 2.4598
2022-05-13 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 1,187,767 272,132 29.72 683,976 31.58 2.7572
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 915,635 65,041 7.65 519,806 36.00 3.0217
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 850,594 7,326 0.87 382,214 14.55 2.0927
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 843,268 280,289 49.79 333,656 68.14 2.1405
2021-05-14 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 562,979 76,515 15.73 198,439 8.27 1.7500
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 486,464 267,802 122.47 183,290 136.12 1.5863
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 218,662 216,507 10,046.73 77,625 11,787.44 0.9336
2020-08-12 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 2,155 -4,832 -69.16 653 -67.22 0.0110
2020-05-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 6,987 6,987 224.22 1,992 205.05 0.0395
2018-05-15 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 0 -83,954 -100.00 0 -100.00
2018-02-13 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 83,954 67,017 395.68 15,626 461.48 0.1279
2017-11-13 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 16,937 16,937 -79.83 2,783 -82.19 0.0187
2017-02-10 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -1,700 -100.00 0 -100.00
2016-11-09 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 1,700 1,700 0.00 259 0.0025
2015-08-11 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -10,450 -100.00 0 -100.00
2015-05-14 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 10,450 -27,800 -72.68 1,583 -70.80 0.0123
2015-02-11 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 38,250 38,250 5,422 0.0433
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.