Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
CENA AKCJI
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionCerity Partners LLC
Latest Disclosed Ownership433,645 shares
Latest Disclosed Value $ 432,088,705
Cerity Partners LLC reports 6.87% increase in ownership of CTO / Costco Wholesale Corporation

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 433,645 shares of Costco Wholesale Corporation (DE:CTO) valued at $376,794,140 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 405,773 shares of Costco Wholesale Corporation. This represents a change in shares of 6.87% during the quarter. The current value of the position is $365,562,735 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)
2026-05-15 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 433,645 27,872 6.87 432,089 23.48 0.3033
2026-02-11 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 405,773 2,291 0.57 349,925 -6.31 0.5099
2025-10-22 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 403,482 9,775 2.48 373,476 -4.17 0.6056
2025-08-13 2025-06-30 13F COSTCO WHSL CORP Stock 22160K105 393,707 6,716 1.74 389,740 6.48 0.6950
2025-04-30 2025-03-31 13F COSTCO WHSL CORP Stock 22160K105 386,991 14,841 3.99 366,010 7.79 0.7414
2025-02-13 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 372,150 -12,025 -3.13 339,566 -0.30 0.7366
2024-11-12 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 384,175 71,898 23.02 340,579 28.31 0.7541
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 312,277 -19,530 -5.89 265,432 9.27 0.6989
2024-05-14 2024-03-31 13F COSTCO WHSL CORP Equities 22160K105 331,807 59,519 21.86 242,923 35.09 0.6416
2024-01-26 2023-12-31 13F COSTCO WHSL CORP Equity 22160K105 272,288 61,122 28.95 179,822 50.73 0.5908
2023-11-14 2023-09-30 13F COSTCO WHSL CORP Equities 22160K105 211,166 -44,514 -17.41 119,301 -13.33 0.5802
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 255,680 15,773 6.57 137,654 15.49 0.5360
2023-05-11 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 239,907 21,999 10.10 119,191 18.02 0.2811
2023-02-15 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 217,908 160,140 277.21 100,990 270.15 0.6468
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 57,768 -2,680 -4.43 27,283 -5.83 0.3279
2022-08-10 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 60,448 -169 -0.28 28,971 -11.99 0.3202
2022-04-25 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 60,617 -233 -0.38 32,916 1.08 0.5114
2022-02-14 2021-12-31 13F COSTCO WHSL CORP Stock 22160K105 60,850 10,231 20.21 32,564 43.17 0.4956
2021-10-25 2021-09-30 13F Costco Wholesale Stock 22160K105 50,619 -390 -0.76 22,745 12.69 0.5004
2021-08-11 2021-06-30 13F COSTCO WHSL CORP Stock 22160K105 51,009 422 0.83 20,183 13.19 0.4417
2021-08-11 2021-03-31 13F/A-1 COSTCO WHSL CORP Stock 22160K105 50,587 8,031 18.87 17,831 11.21 0.4235
2021-05-12 2021-03-31 13F COSTCO WHSL CORP Stock 22160K105 42,349 -207 14,927 0.4422
2021-02-11 2020-12-31 13F COSTCO WHSL CORP Stock 22160K105 42,556 11,125 35.39 16,034 43.70 0.5141
2020-11-12 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 31,431 17,423 124.38 11,158 162.66 0.4590
2020-08-17 2020-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 14,008 -990 -6.60 4,248 -0.68 0.2347
2020-08-14 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 14,111 -887 4,279 235,997.0835
2020-05-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 14,998 4,486 42.68 4,277 38.46 0.2693
2020-02-14 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 10,512 -8,109 -43.55 3,089 -42.42 0.1575
2019-10-30 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 18,621 5,206 38.81 5,365 51.34 0.3149
2019-08-14 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 13,415 -7,947 -37.20 3,545 -31.47 0.2235
2019-05-14 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 21,362 -11,357 -34.71 5,173 -22.39 0.3483
2019-02-06 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 32,719 4,303 15.14 6,665 -0.13 0.4464
2018-11-15 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 28,416 582 2.09 6,674 14.73 0.4622
2018-08-15 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 27,834 26 0.09 5,817 11.01 0.4298
2018-05-15 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 27,808 -1,212 -4.18 5,240 -2.98 0.4007
2018-02-14 2017-12-31 13F Costco Wholesale COM 22160K105 29,020 1,068 3.82 5,401 17.62 0.3625
2017-11-13 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 27,952 27,952 4,592 0.3250
2017-08-10 2017-06-30 13F Costco Wholesale COM 22160K105 0 -24,279 -100.00 0 -100.00
2017-05-02 2017-03-31 13F Costco Wholesale COM 22160K105 24,279 24,279 4,071 0.3399
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.