Costco Wholesale Corporation
AT ˙ WBAG ˙ US22160K1051
855,00 € ↑14,50 (1,73%)
2026-06-05
DELAT PRIS
SecurityAT:COST / Costco Wholesale Corporation
InstitutionGenTrust, LLC
Latest Disclosed Ownership918 shares
Latest Disclosed Value $ 914,723
GenTrust, LLC ownership in COST / Costco Wholesale Corporation

On April 27, 2026 - GenTrust, LLC filed a 13F-HR form disclosing ownership of 918 shares of Costco Wholesale Corporation (AT:COST) valued at $791,316 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 0 shares of Costco Wholesale Corporation. The current value of the position is $784,890 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)
2026-04-27 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 918 918 915 0.0392
2026-02-02 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -100.00 0
2025-11-07 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 446 -287 -39.15 413 -43.17 0.0188
2025-07-31 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 733 -2,327 -76.05 726 -74.95 0.0342
2025-04-23 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,060 -106 -3.35 2,894 -0.21 0.1389
2025-02-05 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 3,166 13 0.41 2,901 3.76 0.1263
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 3,153 169 5.66 2,795 10.21 0.1368
2024-08-09 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,984 0 0.00 2,536 16.01 0.1379
2024-04-19 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,984 200 7.18 2,186 16.34 0.1348
2024-01-18 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,784 0 0.00 1,879 19.53 0.1244
2023-10-11 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,784 0 0.00 1,573 4.94 0.1106
2023-07-21 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 2,784 0 0.00 1,499 8.32 0.1019
2023-05-02 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,784 2,784 1,383 0.0996
2023-01-31 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -529 -100.00 0 -100.00
2022-10-21 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 529 0 0.00 250 -1.57 0.0216
2022-07-22 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 529 0 0.00 254 -16.72 0.0209
2022-04-14 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 529 0 0.00 305 13.38 0.0234
2022-02-07 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 529 -104 -16.43 269 -5.28 0.0210
2021-11-12 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 633 104 19.66 284 35.89 0.0235
2021-08-10 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 529 529 209 0.0176
2020-05-14 2020-03-31 13F Costco Wholesale COM 22160K105 0 -1,429 -100.00 0 -100.00
2020-01-21 2019-12-31 13F Costco Wholesale COM 22160K105 1,429 20 1.42 420 3.45 0.0610
2019-11-12 2019-09-30 13F Costco Wholesale COM 22160K105 1,409 0 0.00 406 9.14 0.0639
2019-08-02 2019-06-30 13F Costco Wholesale COM 22160K105 1,409 0 0.00 372 9.09 0.0598
2019-05-06 2019-03-31 13F Costco Wholesale COM 22160K105 1,409 280 24.80 341 48.91 0.0557
2019-02-08 2018-12-31 13F Costco Wholesale COM 22160K105 1,129 100 9.72 229 -4.98 0.0409
2019-01-31 2018-09-30 13F/A-3 Costco Wholesale COM 22160K105 1,029 -293 -22.16 241 -12.68 0.0387
2018-11-14 2018-09-30 13F Costco Wholesale COM 22160K105 1,029 -293 241 0.0387
2018-08-08 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 1,322 207 18.57 276 31.43 0.0463
2018-05-02 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 1,115 0 0.00 210 0.96 0.0363
2018-02-09 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 1,115 -125 -10.08 208 1.96 0.0372
2017-11-07 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 1,240 1,240 204 0.0386
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.