코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionComerica Bank
Latest Disclosed Ownership110,727 shares
Latest Disclosed Value $ 95,484,233
Comerica Bank reports 7.14% decrease in ownership of COST / Costco Wholesale Corporation

On January 29, 2026 - Comerica Bank filed a 13F-HR form disclosing ownership of 110,727 shares of Costco Wholesale Corporation (MX:COST) valued at $95,484,233 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 119,237 shares of Costco Wholesale Corporation. This represents a change in shares of -7.14% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-01-29 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 110,727 -8,510 -7.14 95,484 -13.49 0.3810
2025-11-14 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 119,237 -7,092 -5.61 110,370 -11.74 0.4152
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 126,329 1,378 1.10 125,058 5.82 0.4854
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 124,951 -1,610 -1.27 118,176 1.91 0.4963
2025-02-14 2024-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 126,561 -7,505 -5.60 115,964 -2.43 0.4676
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 126,561 -7,505 115,964 0.3884
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 134,066 -6,958 -4.93 118,852 -0.85 0.4701
2024-08-15 2024-06-30 13F COSTCO WHOLESALE COMMON 22160K105 141,024 -3,687 -2.55 119,869 13.06 0.4989
2024-05-16 2024-03-31 13F COSTCO WHOLESALE COMMON 22160K105 144,711 -623 -0.43 106,020 10.52 0.4569
2024-02-14 2023-12-31 13F COSTCO WHOLESALE COMMON 22160K105 145,334 1,933 1.35 95,932 18.41 0.4418
2023-11-21 2023-09-30 13F COSTCO WHSL CORP COMMON 22160K105 143,401 143,401 81,016 0.4219
2023-08-22 2023-06-30 13F COSTCO WHOLESALE EQU 22160K105 0 -80,586 -100.00 0 -100.00
2023-01-26 2022-12-31 13F COSTCO WHOLESALE COM 22160K105 80,586 -203 -0.25 39 -99.90 0.3050
2022-10-28 2022-09-30 13F COSTCO WHOLESALE COM 22160K105 80,789 1,155 1.45 40,150 -3.08 0.3385
2022-08-02 2022-06-30 13F COSTCO WHOLESALE COM 22160K105 79,634 -1,534 -1.89 41,428 -15.43 0.3402
2022-04-27 2022-03-31 13F COSTCO WHOLESALE COM 22160K105 81,168 791 0.98 48,987 27.68 0.3555
2022-02-18 2021-12-31 13F COSTCO WHOLESALE COM 22160K105 80,377 1,727 2.20 38,366 1.21 0.2824
2021-11-22 2021-09-30 13F COSTCO WHOLESALE COM 22160K105 78,650 -19,367 -19.76 37,908 -14.86 0.2283
2021-08-26 2021-06-30 13F COSTCO WHOLESALE COM 22160K105 98,017 -6,908 -6.58 44,526 13.69 0.2658
2021-04-28 2021-03-31 13F COSTCO WHOLESALE COM 22160K105 104,925 -5,155 -4.68 39,166 -1.80 0.2336
2021-01-28 2020-12-31 13F COSTCO WHOLESALE COM 22160K105 110,080 -5,916 -5.10 39,882 -8.22 0.2531
2020-10-30 2020-09-30 13F COSTCO WHOLESALE COM 22160K105 115,996 1,293 1.13 43,452 15.39 0.3154
2020-07-31 2020-06-30 13F COSTCO WHOLESALE COM 22160K105 114,703 3,676 3.31 37,657 9.21 0.2901
2020-05-01 2020-03-31 13F COSTCO WHOLESALE COM 22160K105 111,027 2,880 2.66 34,480 3.02 0.3163
2020-02-07 2019-12-31 13F COSTCO WHOLESALE COM 22160K105 108,147 -3,073 -2.76 33,469 1.31 0.2535
2019-10-31 2019-09-30 13F COSTCO WHOLESALE COM 22160K105 111,220 -1,456 -1.29 33,037 4.13 0.2611
2019-08-02 2019-06-30 13F COSTCO WHOLESALE COM 22160K105 112,676 635 0.57 31,726 15.29 0.2541
2019-05-02 2019-03-31 13F COSTCO WHOLESALE COM 22160K105 112,041 -10,995 -8.94 27,519 6.35 0.2231
2019-02-06 2018-12-31 13F COSTCO WHOLESALE COM 22160K105 123,036 -7,360 -5.64 25,876 -13.25 0.2198
2018-11-01 2018-09-30 13F COSTCO WHOLESALE COM 22160K105 130,396 -21,526 -14.17 29,829 -8.68 0.2406
2018-08-01 2018-06-30 13F COSTCO WHOLESALE COM 22160K105 151,922 -758 -0.50 32,664 9.67 0.2284
2018-05-01 2018-03-31 13F COSTCO WHOLESALE COM 22160K105 152,680 7,468 5.14 29,784 5.59 0.2128
2018-02-02 2017-12-31 13F COSTCO WHOLESALE COM 22160K105 145,212 8,212 5.99 28,207 28.50 0.1879
2017-11-06 2017-09-30 13F COSTCO WHOLESALE COM 22160K105 137,000 -14,887 -9.80 21,951 -4.29 0.1588
2017-08-03 2017-06-30 13F COSTCO WHOLESALE COM 22160K105 151,887 -2,957 -1.91 22,935 -16.53 0.1717
2017-05-03 2017-03-31 13F COSTCO WHOLESALE COM 22160K105 154,844 -2,417 -1.54 27,477 7.95 0.2085
2017-02-08 2016-12-31 13F COSTCO WHOLESALE COM 22160K105 157,261 -5,478 -3.37 25,454 -6.82 0.2014
2016-08-11 2016-06-30 13F COSTCO WHOLESALE COM 22160K105 162,739 -4,344 -2.60 27,318 6.74 0.2359
2016-05-11 2016-03-31 13F COSTCO WHOLESALE COM 22160K105 167,083 -651 -0.39 25,593 0.31 0.2285
2016-02-05 2015-12-31 13F COSTCO WHOLESALE COM 22160K105 167,734 -212 -0.13 25,514 5.09 0.2504
2015-11-12 2015-09-30 13F COSTCO WHOLESALE COM 22160K105 167,946 -181,010 -51.87 24,279 -48.48 0.2299
2015-08-13 2015-06-30 13F COSTCO WHOLESALE COM 22160K105 348,956 170,075 95.08 47,128 73.90 0.2023
2015-05-15 2015-03-31 13F COSTCO WHOLESALE COM 22160K105 178,881 -172,611 -49.11 27,100 -45.61 0.2295
2015-02-13 2014-12-31 13F COSTCO WHOLESALE COM 22160K105 351,492 176,426 100.78 49,826 127.10 0.2154
2014-10-21 2014-09-30 13F COSTCO WHOLESALE COM 22160K105 175,066 4,323 2.53 21,940 11.58 0.1937
2014-08-12 2014-06-30 13F COSTCO WHOLESALE COM 22160K105 170,743 -212,062 -55.40 19,663 -54.01 0.1672
2014-05-15 2014-03-31 13F COSTCO WHOLESALE COM 22160K105 382,805 9,569 2.56 42,751 -3.76 0.3275
2014-02-11 2013-12-31 13F COSTCO WHOLESALE COM 22160K105 373,236 -23,499 -5.92 44,423 -2.78 0.3443
2013-11-12 2013-09-30 13F COSTCO WHOLESALE COM 22160K105 396,735 376 0.09 45,692 4.26 0.3180
2013-08-13 2013-06-30 13F/A-1 COSTCO WHOLESALE COM 22160K105 396,359 396,359 43,825 0.3573
2013-08-08 2013-06-30 13F COSTCO WHOLESALE COM 22160K105 2,201,875 243,457
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.