Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
CENA AKCJI
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionDillon & Associates Inc
Latest Disclosed Ownership14,429 shares
Latest Disclosed Value $ 14,371
Dillon & Associates Inc reports 5.65% increase in ownership of CTO / Costco Wholesale Corporation

On May 7, 2026 - Dillon & Associates Inc filed a 13F-HR form disclosing ownership of 14,429 shares of Costco Wholesale Corporation (DE:CTO) valued at $12,537,358 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 13,658 shares of Costco Wholesale Corporation. This represents a change in shares of 5.65% during the quarter. The current value of the position is $12,163,647 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)
2026-05-07 2026-03-31 13F Costco Wholesale COST 22160K105 14,429 771 5.65 14 27.27 1.9783
2026-02-09 2025-12-31 13F Costco Wholesale COMM 22160K105 13,658 2,230 19.51 12 10.00 1.5202
2025-10-28 2025-09-30 13F Costco Wholesale COMM 22160K105 11,428 7 0.06 11 -9.09 1.3606
2025-08-05 2025-06-30 13F Costco Wholesale COMM 22160K105 11,421 1,481 14.90 11 22.22 1.5349
2025-05-12 2025-03-31 13F Costco Wholesale COMM 22160K105 9,940 1,826 22.50 9 28.57 1.3970
2025-02-11 2024-12-31 13F Costco Wholesale COMM 22160K105 8,114 647 8.66 7 16.67 1.0307
2024-11-05 2024-09-30 13F Costco Wholesale COMM 22160K105 7,467 360 5.07 7 0.00 0.9320
2024-08-06 2024-06-30 13F Costco Wholesale COMM 22160K105 7,107 473 7.13 6 50.00 0.8782
2024-04-30 2024-03-31 13F Costco Wholesale COMM 22160K105 6,634 245 3.83 5 0.00 0.7640
2024-02-08 2023-12-31 13F Costco Wholesale COMM 22160K105 6,389 -64 -0.99 4 33.33 0.7649
2023-11-13 2023-09-30 13F Costco Wholesale COMM 22160K105 6,453 913 16.48 4 50.00 0.7017
2023-08-08 2023-06-30 13F Costco Wholesale COMM 22160K105 5,540 3,943 246.90 3 0.5484
2023-05-02 2023-03-31 13F/A-1 Costco Wholesale COMM 22160K105 1,597 1,120 234.80 1 0.1575
2023-05-01 2023-03-31 13F Costco Wholesale COMM 22160K105 442 -35 0 0.0437
2023-02-06 2022-12-31 13F Costco Wholesale COMM 22160K105 477 0 0.00 0 -100.00 0.0472
2022-11-08 2022-09-30 13F Costco Wholesale COMM 22160K105 477 0 0.00 225 -1.32 0.0522
2022-07-26 2022-06-30 13F Costco Wholesale COMM 22160K105 477 0 0.00 228 -17.09 0.0514
2022-05-06 2022-03-31 13F Costco Wholesale COMM 22160K105 477 35 7.92 275 9.56 0.0522
2022-02-14 2021-12-31 13F Costco Wholesale COMM 22160K105 442 442 251 0.0437
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.