코스트코 도매공사
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionFishman Jay A Ltd/mi
Latest Disclosed Ownership16,002 shares
Latest Disclosed Value $ 15,944,873
Fishman Jay A Ltd/mi reports 4.37% decrease in ownership of COST / Costco Wholesale Corporation

On April 29, 2026 - Fishman Jay A Ltd/mi filed a 13F-HR form disclosing ownership of 16,002 shares of Costco Wholesale Corporation (MX:COST) valued at $15,944,873 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 16,733 shares of Costco Wholesale Corporation. This represents a change in shares of -4.37% 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)
2026-04-29 2026-03-31 13F COSTCO WHOLESALE CORPORATION COM com 22160K105 16,002 -731 -4.37 15,945 10.50 1.4236
2026-01-28 2025-12-31 13F COSTCO WHOLESALE CORPORATION COM com 22160K105 16,733 -105 -0.62 14,430 -7.42 1.1867
2025-11-05 2025-09-30 13F COSTCO WHSL CORP NEW COM com 22160K105 16,838 -50 -0.30 15,586 -6.78 1.3359
2025-07-22 2025-06-30 13F COSTCO WHSL CORP NEW COM com 22160K105 16,888 575 3.52 16,718 8.36 1.6007
2025-04-22 2025-03-31 13F COSTCO WHSL CORP NEW COM com 22160K105 16,313 -1,895 -10.41 15,429 -7.52 1.6851
2025-01-29 2024-12-31 13F COSTCO WHSL CORP NEW COM com 22160K105 18,208 0 0.00 16,683 3.36 1.5645
2024-10-30 2024-09-30 13F COSTCO WHSL CORP NEW COM com 22160K105 18,208 75 0.41 16,142 4.73 1.6036
2024-08-05 2024-06-30 13F/A-1 COSTCO WHSL CORP NEW COM com 22160K105 18,133 -165 -0.90 15,413 14.97 1.6241
2024-07-31 2024-06-30 13F COSTCO WHSL CORP NEW COM com 22160K105 6,500 -11,798 15,413 1.6241
2024-04-23 2024-03-31 13F COSTCO WHSL CORP NEW COM com 22160K105 18,298 -20 -0.11 13,406 10.87 1.4811
2024-01-24 2023-12-31 13F COSTCO WHSL CORP NEW COM com 22160K105 18,318 -1,000 -5.18 12,091 10.79 1.3838
2023-11-13 2023-09-30 13F COSTCO WHOLESALE com 22160K105 19,318 -50 -0.26 10,914 4.66 1.3819
2023-08-15 2023-06-30 13F/A-1 COSTCO WHOLESALE com 22160K105 19,368 -1,315 -6.36 10,427 1.47 1.2632
2023-08-15 2023-06-30 13F COSTCO WHOLESALE com 22160K105 19,368 10,427
2023-05-09 2023-03-31 13F COSTCO WHOLESALE com 22160K105 20,683 6,450 45.32 10,277 58.17 1.3123
2023-02-13 2022-12-31 13F COSTCO WHOLESALE com 22160K105 14,233 1,000 7.56 6,497 3.97 0.9139
2022-10-26 2022-09-30 13F COSTCO WHOLESALE com 22160K105 13,233 0 0.00 6,250 -1.47 0.9039
2022-08-09 2022-06-30 13F COSTCO WHOLESALE com 22160K105 13,233 520 4.09 6,342 -13.36 0.8641
2022-05-10 2022-03-31 13F COSTCO WHOLESALE com 22160K105 12,713 0 0.00 7,321 1.43 0.8064
2022-02-14 2021-12-31 13F COSTCO WHOLESALE com 22160K105 12,713 90 0.71 7,217 27.24 0.7710
2021-11-08 2021-09-30 13F COSTCO WHOLESALE com 22160K105 12,623 0 0.00 5,672 13.58 0.7024
2021-08-09 2021-06-30 13F COSTCO WHOLESALE com 22160K105 12,623 342 2.78 4,995 15.39 0.6106
2021-05-03 2021-03-31 13F COSTCO WHOLESALE com 22160K105 12,281 -10 -0.08 4,329 -6.54 0.5838
2021-02-10 2020-12-31 13F COSTCO WHOLESALE csus 22160K105 12,291 0 0.00 4,631 6.14 0.6371
2020-11-10 2020-09-30 13F COSTCO WHOLESALE com 22160K105 12,291 100 0.82 4,363 18.05 0.6904
2020-08-10 2020-06-30 13F COSTCO WHOLESALE com 22160K105 12,191 0 0.00 3,696 6.33 0.6451
2020-05-13 2020-03-31 13F/A-82 COSTCO WHOLESALE com 22160K105 12,191 0 0.00 3,476 -2.99 0.7202
2020-05-12 2020-03-31 13F COSTCO WHOLESALE com 22160K105 13,305 1,114 3,222 601,536.8651
2020-02-04 2019-12-31 13F COSTCO WHOLESALE com 22160K105 12,191 21 0.17 3,583 2.20 0.6173
2019-11-05 2019-09-30 13F/A-1 COSTCO WHOLESALE com 22160K105 12,170 -30 -0.25 3,506 8.78 0.6571
2019-11-05 2019-09-30 13F COSTCO WHOLESALE com 22160K105 12,170 -30,000 3,506
2019-08-06 2019-06-30 13F COSTCO WHOLESALE com 22160K105 12,200 -1,105 -8.31 3,224 0.06 0.6032
2019-05-01 2019-03-31 13F COSTCO WHOLESALE com 22160K105 13,305 0 0.00 3,222 18.86 0.6015
2019-03-19 2018-12-31 13F/A-1 COSTCO WHOLESALE com 22160K105 13,305 0 0.00 2,710 -13.28 0.5870
2019-02-05 2018-12-31 13F COSTCO WHOLESALE com 22160K105 13,305 0 2,710
2018-10-31 2018-09-30 13F COSTCO WHOLESALE com 22160K105 13,305 0 0.00 3,125 12.41 0.5489
2018-08-06 2018-06-30 13F COSTCO WHOLESALE com 22160K105 13,305 100 0.76 2,780 11.74 0.5200
2018-05-08 2018-03-31 13F COSTCO WHOLESALE com 22160K105 13,205 0 0.00 2,488 1.26 0.4703
2018-05-08 2017-12-31 13F/A-1 COSTCO WHOLESALE com 22160K105 13,205 -1,817 -12.10 2,458 -0.41 0.4633
2018-02-05 2017-12-31 13F COSTCO WHOLESALE com 22160K105 13,205 -1,817 2,458
2017-10-31 2017-09-30 13F COSTCO WHOLESALE com 22160K105 15,022 -680 -4.33 2,468 -1.75 0.5032
2017-08-03 2017-06-30 13F COSTCO WHOLESALE com 22160K105 15,702 100 0.64 2,511 -4.01 0.5316
2017-05-10 2017-03-31 13F COSTCO WHOLESALE com 22160K105 15,602 83 0.53 2,616 5.31 0.5900
2017-02-06 2016-12-31 13F COSTCO WHOLESALE com 22160K105 15,519 400 2.65 2,485 7.77 0.6132
2016-11-03 2016-09-30 13F COSTCO WHOLESALE com 22160K105 15,119 764 5.32 2,306 2.26 0.5686
2016-08-09 2016-06-30 13F COSTCO WHOLESALE com 22160K105 14,355 13,000 959.41 2,254 958.22 0.5714
2016-05-10 2016-03-31 13F COSTCO WHOLESALE com 22160K105 1,355 0 0.00 214 -2.29 0.0555
2016-02-08 2015-12-31 13F COSTCO WHOLESALE com 22160K105 1,355 1,355 219 0.0533
2015-08-05 2015-06-30 13F COSTCO WHOLESALE com 22160K105 0 -1,355 -100.00 0 -100.00
2015-04-29 2015-03-31 13F COSTCO WHOLESALE com 22160K105 1,355 1,355 205 0.0430
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.