Costco Wholesale Corporation
US ˙ NasdaqGS ˙ US22160K1051

SecurityCOST / Costco Wholesale Corporation
InstitutionLegacy Bridge, LLC
Latest Disclosed Ownership2,725 shares
Latest Disclosed Value $ 2,715,272
Legacy Bridge, LLC reports 1.87% increase in ownership of COST / Costco Wholesale Corporation

On May 14, 2026 - Legacy Bridge, LLC filed a 13F-HR form disclosing ownership of 2,725 shares of Costco Wholesale Corporation (US:COST) valued at $2,715,272 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 2,675 shares of Costco Wholesale Corporation. This represents a change in shares of 1.87% during the quarter. The current value of the position is $2,620,987 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)
2026-05-14 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 2,725 50 1.87 2,715 17.74 1.0355
2026-01-23 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 2,675 12 0.45 2,307 -6.41 0.9362
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 2,663 5 0.19 2,465 -6.35 1.0257
2025-08-06 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 2,658 -5 -0.19 2,631 4.49 1.2488
2025-05-08 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 2,663 4 0.15 2,519 3.37 1.4054
2025-01-22 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 2,659 0 0.00 2,436 3.35 1.2702
2024-11-07 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 2,659 12 0.45 2,357 4.80 1.2694
2024-08-06 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 2,647 -20 -0.75 2,250 15.16 1.3262
2024-04-25 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 2,667 -15 -0.56 1,954 10.34 1.1431
2024-01-17 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 2,682 -8 -0.30 1,770 16.52 1.1472
2023-10-11 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 2,690 75 2.87 1,520 7.96 1.0833
2023-07-11 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 2,615 0 0.00 1,408 8.31 0.9398
2023-04-24 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 2,615 75 2.95 1,299 12.08 0.9065
2023-01-11 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 2,540 91 3.72 1,160 0.17 0.8242
2022-11-02 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 2,449 0 0.00 1,157 -1.45 0.9229
2022-07-21 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 2,449 -571 -18.91 1,174 -32.49 0.8664
2022-04-28 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 3,020 -20 -0.66 1,739 0.75 1.0159
2022-01-18 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 3,040 -542 -15.13 1,726 7.20 0.8991
2021-10-26 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 3,582 102 2.93 1,610 16.92 0.9281
2021-08-03 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 3,480 -570 -14.07 1,377 -3.57 0.7788
2021-04-29 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 4,050 275 7.28 1,428 0.42 0.9240
2021-02-02 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 3,775 229 6.46 1,422 12.95 1.0308
2020-10-19 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 3,546 105 3.05 1,259 20.71 1.1493
2020-08-04 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 3,441 -105 -2.96 1,043 3.17 1.1479
2020-05-01 2020-03-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 3,546 113 3.29 1,011 0.20 1.2733
2020-04-09 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 3,546 113 1,011 1,282,376.5189
2020-02-04 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 3,433 55 1.63 1,009 3.70 0.8378
2019-10-15 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 3,378 -50 -1.46 973 7.40 0.9289
2019-07-11 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 3,428 12 0.35 906 9.55 0.8739
2019-04-26 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 3,416 70 2.09 827 21.26 0.8525
2019-01-25 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 3,346 3,346 682 0.8440
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.