Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionViolich Capital Management, Inc.
Latest Disclosed Ownership48,404 shares
Latest Disclosed Value $ 48,231,198
Violich Capital Management, Inc. reports 1.48% decrease in ownership of COST / Costco Wholesale Corporation

On April 8, 2026 - Violich Capital Management, Inc. filed a 13F-HR form disclosing ownership of 48,404 shares of Costco Wholesale Corporation (MX:COST) valued at $48,231,198 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 49,133 shares of Costco Wholesale Corporation. This represents a change in shares of -1.48% 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)
2026-04-08 2026-03-31 13F Costco Wholesale COM 22160K105 48,404 -729 -1.48 48,231 13.84 5.6381
2026-02-03 2025-12-31 13F Costco Wholesale COM 22160K105 49,133 41 0.08 42,369 -6.76 4.7283
2025-10-29 2025-09-30 13F Costco Wholesale COM 22160K105 49,092 2,141 4.56 45,441 -2.23 5.4068
2025-07-29 2025-06-30 13F Costco Wholesale COM 22160K105 46,951 -5,629 -10.71 46,479 94,753.06 6.5406
2025-05-02 2025-03-31 13F Costco Wholesale COM 22160K105 52,580 -3,932 -6.96 50 -3.92 6.7090
2025-01-29 2024-12-31 13F Costco Wholesale COM 22160K105 56,512 -5,530 -8.91 52 -7.27 6.7352
2024-10-18 2024-09-30 13F Costco Wholesale COM 22160K105 62,042 300 0.49 55 5.77 7.1493
2024-07-25 2024-06-30 13F Costco Wholesale COM 22160K105 61,742 -450 -0.72 52 15.56 7.0917
2024-04-30 2024-03-31 13F Costco Wholesale COM 22160K105 62,192 1,552 2.56 46 12.50 6.5204
2024-01-26 2023-12-31 13F Costco Wholesale COM 22160K105 60,640 -665 -1.08 40 17.65 6.4975
2023-10-12 2023-09-30 13F Costco Wholesale COM 22160K105 61,305 -2,010 -3.17 35 0.00 5.9095
2023-07-25 2023-06-30 13F Costco Wholesale COM 22160K105 63,315 -620 -0.97 34 9.68 5.4932
2023-04-18 2023-03-31 13F Costco Wholesale COM 22160K105 63,935 -400 -0.62 32 6.90 5.4139
2023-01-24 2022-12-31 13F Costco Wholesale COM 22160K105 64,335 -40 -0.06 29 -99.90 5.2146
2022-10-17 2022-09-30 13F Costco Wholesale COM 22160K105 64,375 -285 -0.44 30,402 -1.90 5.7269
2022-07-25 2022-06-30 13F Costco Wholesale COM 22160K105 64,660 -440 -0.68 30,990 -17.33 5.4295
2022-04-25 2022-03-31 13F Costco Wholesale COM 22160K105 65,100 -2,715 -4.00 37,488 -2.63 5.5363
2022-01-26 2021-12-31 13F Costco Wholesale COM 22160K105 67,815 -915 -1.33 38,499 24.66 5.5302
2021-10-12 2021-09-30 13F Costco Wholesale COM 22160K105 68,730 990 1.46 30,884 15.23 4.9665
2021-07-29 2021-06-30 13F Costco Wholesale COM 22160K105 67,740 -3,095 -4.37 26,803 7.35 4.4974
2021-04-30 2021-03-31 13F Costco Wholesale COM 22160K105 70,835 -2,900 -3.93 24,968 -10.13 4.5016
2021-01-29 2020-12-31 13F Costco Wholesale COM 22160K105 73,735 -130 -0.18 27,782 5.95 5.3693
2020-10-19 2020-09-30 13F Costco Wholesale COM 22160K105 73,865 -2,982 -3.88 26,222 12.54 5.5257
2020-08-03 2020-06-30 13F Costco Wholesale COM 22160K105 76,847 -170 -0.22 23,301 6.11 5.1007
2020-04-30 2020-03-31 13F Costco Wholesale COM 22160K105 77,017 -1,801 -2.29 21,960 -5.21 5.8773
2020-01-16 2019-12-31 13F Costco Wholesale COM 22160K105 78,818 -375 -0.47 23,166 1.53 5.0537
2019-11-06 2019-09-30 13F Costco Wholesale COM 22160K105 79,193 -741 -0.93 22,816 8.01 5.4897
2019-07-22 2019-06-30 13F Costco Wholesale COM 22160K105 79,934 -1,150 -1.42 21,123 7.58 5.1948
2019-05-07 2019-03-31 13F Costco Wholesale COM 22160K105 81,084 2,622 3.34 19,634 22.84 4.9772
2019-02-12 2018-12-31 13F Costco Wholesale COM 22160K105 78,462 -1,074 -1.35 15,983 -14.44 4.5356
2018-11-08 2018-09-30 13F Costco Wholesale COM 22160K105 79,536 -1,380 -1.71 18,681 10.47 4.2679
2018-08-03 2018-06-30 13F Costco Wholesale COM 22160K105 80,916 -267 -0.33 16,910 10.54 4.2548
2018-05-11 2018-03-31 13F Costco Wholesale COM 22160K105 81,183 -105 -0.13 15,297 1.11 4.0935
2018-03-01 2017-12-31 13F Costco Wholesale COM 22160K105 81,288 50 0.06 15,129 13.35 3.8516
2017-11-14 2017-09-30 13F Costco Wholesale COM 22160K105 81,238 7,886 10.75 13,347 13.78 3.6434
2017-08-14 2017-06-30 13F Costco Wholesale COM 22160K105 73,352 12,310 20.17 11,731 14.61 3.4241
2017-05-11 2017-03-31 13F Costco Wholesale COM 22160K105 61,042 725 1.20 10,236 -0.74 3.0948
2017-02-10 2016-12-31 13F Costco Wholesale COM 22160K105 60,317 23,220 62.59 10,312 82.26 3.1665
2016-11-08 2016-09-30 13F Costco Wholesale COM 22160K105 37,097 15,135 68.91 5,658 64.05 1.9823
2016-08-15 2016-06-30 13F Costco Wholesale COM 22160K105 21,962 5,013 29.58 3,449 29.13 1.0884
2016-05-13 2016-03-31 13F/A-1 Costco Wholesale COM 22160K105 16,949 -170 -0.99 2,671 -3.40 0.8583
2016-05-09 2016-03-31 13F Costco Wholesale COM 22160K105 16,949 2,671
2016-02-09 2015-12-31 13F Costco Wholesale COM 22160K105 17,119 -250 -1.44 2,765 10.12 0.9162
2015-11-05 2015-09-30 13F Costco Wholesale COM 22160K105 17,369 1,185 7.32 2,511 14.87 0.8792
2015-08-11 2015-06-30 13F Costco Wholesale COM 22160K105 16,184 247 1.55 2,186 -9.44 0.7138
2015-05-12 2015-03-31 13F Costco Wholesale COM 22160K105 15,937 39 0.25 2,414 7.10 0.7840
2015-02-06 2014-12-31 13F Costco Wholesale COM 22160K105 15,898 311 2.00 2,254 15.41 0.7165
2014-11-14 2014-09-30 13F Costco Wholesale COM 22160K105 15,587 210 1.37 1,953 10.28 0.6361
2014-08-14 2014-06-30 13F Costco Wholesale COM 22160K105 15,377 -950 -5.82 1,771 -2.85 0.5922
2014-05-15 2014-03-31 13F Costco Wholesale COM 22160K105 16,327 885 5.73 1,823 -0.82 0.6349
2014-02-18 2013-12-31 13F Costco Wholesale COM 22160K105 15,442 815 5.57 1,838 9.08 0.6591
2013-11-25 2013-09-30 13F Costco Wholesale COM 22160K105 14,627 661 4.73 1,685 9.13 0.6570
2013-08-13 2013-06-30 13F Costco Wholesale COM 22160K105 13,966 13,966 1,544 0.6255
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.