Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
DEL PRIS
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionPlancorp, LLC
Latest Disclosed Ownership2,199 shares
Latest Disclosed Value $ 2,195,325
Plancorp, LLC reports 1.76% increase in ownership of CTO / Costco Wholesale Corporation

On April 14, 2026 - Plancorp, LLC filed a 13F-HR form disclosing ownership of 2,199 shares of Costco Wholesale Corporation (DE:CTO) valued at $1,910,711 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 2,161 shares of Costco Wholesale Corporation. This represents a change in shares of 1.76% during the quarter. The current value of the position is $1,853,757 USD.

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)
2026-04-14 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 2,199 38 1.76 2,195 17.82 0.0624
2026-02-05 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 2,161 -67 -3.01 1,863 -9.65 0.0563
2025-10-15 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 2,228 -655 -22.72 2,062 -27.75 0.0647
2025-07-16 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 2,883 -277 -8.77 2,854 -4.48 0.0989
2025-05-15 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,160 156 5.19 2,989 8.58 0.1185
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 3,004 35 1.18 2,753 4.56 0.1131
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 2,969 43 1.47 2,632 5.83 0.1074
2024-08-09 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,926 35 1.21 2,487 17.42 0.1078
2024-05-15 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,891 173 6.36 2,118 18.06 0.0920
2024-02-09 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,718 153 5.96 1,794 23.81 0.0860
2023-11-08 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,565 697 37.31 1,449 44.18 0.0776
2023-07-26 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 1,868 98 5.54 1,006 14.33 0.0542
2023-05-11 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 1,770 30 1.72 880 10.71 0.0494
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 1,740 -7 -0.40 795 -3.76 0.0469
2022-11-10 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 1,747 80 4.80 825 3.25 0.0550
2022-08-04 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 1,667 14 0.85 799 -16.07 0.0503
2022-05-13 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 1,653 -1 -0.06 952 1.38 0.0619
2022-02-11 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 1,654 -22 -1.31 939 24.70 0.0595
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 1,676 458 37.60 753 56.22 0.0520
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 1,218 9 0.74 482 13.15 0.0378
2021-05-14 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 1,209 -241 -16.62 426 -21.98 0.0939
2021-02-09 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 1,450 302 26.31 546 34.15 0.1345
2020-11-16 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 1,148 -269 -18.98 407 -5.35 0.1236
2020-08-11 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 1,417 338 31.33 430 40.07 0.1295
2020-05-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 1,079 85 8.55 307 5.14 0.1188
2020-02-03 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 994 994 292 0.0895
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.