Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionJGP Wealth Management, LLC
Latest Disclosed Ownership4,190 shares
Latest Disclosed Value $ 4,174,614
JGP Wealth Management, LLC reports 5.44% decrease in ownership of COST / Costco Wholesale Corporation

On April 8, 2026 - JGP Wealth Management, LLC filed a 13F-HR form disclosing ownership of 4,190 shares of Costco Wholesale Corporation (MX:COST) valued at $4,174,614 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 4,431 shares of Costco Wholesale Corporation. This represents a change in shares of -5.44% 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)
2026-04-08 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 4,190 -241 -5.44 4,175 9.24 0.4342
2026-01-12 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 4,431 122 2.83 3,821 -3.27 0.3983
2025-10-15 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 4,309 132 3.16 3,950 -4.45 0.4378
2025-07-28 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 4,177 428 11.42 4,135 16.58 0.5011
2025-04-09 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,749 -20 -0.53 3,546 2.69 0.4667
2025-01-15 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 3,769 -3 -0.08 3,454 3.26 0.4464
2024-10-09 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 3,772 62 1.67 3,344 6.06 0.4305
2024-07-12 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 3,710 -84 -2.21 3,154 13.46 0.4498
2024-04-24 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 3,794 -429 -10.16 2,780 -0.29 0.4036
2024-01-10 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 4,223 -58 -1.35 2,788 15.26 0.4139
2023-10-19 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 4,281 -7 -0.16 2,419 4.77 0.4056
2023-08-10 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 4,288 98 2.34 2,309 10.91 0.3773
2023-04-14 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 4,190 -3 -0.07 2,082 8.73 0.3652
2023-02-10 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 4,193 -214 -4.86 1,914 -7.22 0.3517
2022-10-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 4,407 -1 -0.02 2,063 -5.02 0.4339
2022-07-19 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 4,408 11 0.25 2,172 -17.66 0.4384
2022-04-20 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 4,397 -511 -10.41 2,638 -2.26 0.4865
2022-01-18 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 4,908 258 5.55 2,699 29.20 0.5025
2021-10-13 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 4,650 185 4.14 2,089 18.22 0.4514
2021-08-12 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 4,465 328 7.93 1,767 21.19 0.3800
2021-04-28 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 4,137 69 1.70 1,458 0.69 0.3267
2021-02-10 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 4,068 225 5.85 1,448 3.80 0.3355
2020-10-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 3,843 161 4.37 1,395 19.74 0.3704
2020-07-13 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 3,682 26 0.71 1,165 4.11 0.3426
2020-04-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 3,656 428 13.26 1,119 18.79 0.3966
2020-01-09 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 3,228 43 1.35 942 3.74 0.2784
2019-10-24 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 3,185 398 14.28 908 23.37 0.3148
2019-07-15 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 2,787 472 20.39 736 31.19 0.2608
2019-05-13 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 2,315 0 0.00 561 18.86 0.2124
2019-01-17 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 2,315 0 0.00 472 -13.24 0.1952
2018-11-27 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 2,315 0 0.00 544 12.40 0.2177
2018-08-10 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 2,315 2,315 484 0.2020
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.