Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionJacobs Levy Equity Management, Inc
Latest Disclosed Ownership84,762 shares
Latest Disclosed Value $ 84,459,400
Jacobs Levy Equity Management, Inc reports 13.54% increase in ownership of COST / Costco Wholesale Corporation

On May 15, 2026 - Jacobs Levy Equity Management, Inc filed a 13F-HR form disclosing ownership of 84,762 shares of Costco Wholesale Corporation (MX:COST) valued at $84,459,400 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 74,653 shares of Costco Wholesale Corporation. This represents a change in shares of 13.54% during the quarter.

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 84,762 10,109 13.54 84,459 31.20 0.3550
2026-02-13 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 74,653 11,223 17.69 64,376 9.65 0.2486
2025-11-17 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 63,430 -36,540 -36.55 58,713 -40.67 0.2333
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 99,970 -67,835 -40.42 98,964 -37.64 0.3880
2025-05-15 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 167,805 127,376 315.06 158,707 328.44 0.6295
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 40,429 32,304 397.59 37,044 414.34 0.1311
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 8,125 8,125 7,203 0.0278
2024-08-14 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -19,102 -100.00 0 -100.00
2024-05-15 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 19,102 -2,906 -13.20 13,995 -3.67 0.0625
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 22,008 5,254 31.36 14,527 53.48 0.0732
2023-11-17 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 16,754 -47,445 -73.90 9,465 -72.62 0.0561
2023-08-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 64,199 -79,027 -55.18 34,563 -51.43 0.1992
2023-05-15 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 143,226 -50,608 -26.11 71,165 -19.58 0.4362
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 193,834 155,718 408.54 88,485 391.56 0.5987
2022-11-15 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 38,116 15,246 66.66 18,001 64.23 0.1423
2022-08-15 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 22,870 -124,572 -84.49 10,961 -87.09 0.0849
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 147,442 -156,564 -51.50 84,904 -50.80 0.5711
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 304,006 -68,184 -18.32 172,584 3.19 1.1556
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 372,190 66,157 21.62 167,244 38.12 1.1261
2021-08-16 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 306,033 -143,082 -31.86 121,088 -23.51 0.8209
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 449,115 367,783 452.20 158,304 416.59 1.2211
2021-02-16 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 81,332 67,308 479.95 30,644 515.46 0.2687
2020-11-16 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 14,024 799 6.04 4,979 24.16 0.0516
2020-08-17 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 13,225 -1,077 -7.53 4,010 -1.67 0.0434
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 14,302 10,756 303.33 4,078 291.36 0.0524
2020-02-14 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 3,546 813 29.75 1,042 32.40 0.0102
2019-11-14 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 2,733 -121,990 -97.81 787 -97.61 0.0097
2019-08-13 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 124,723 -41,027 -24.75 32,959 -17.88 0.4560
2019-05-14 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 165,750 -63,345 -27.65 40,135 -14.00 0.5792
2019-02-14 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 229,095 30,371 15.28 46,669 -0.01 0.8203
2018-11-14 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 198,724 94,330 90.36 46,676 113.95 0.6621
2018-08-14 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 104,394 -23,100 -18.12 21,816 -9.19 0.3429
2018-05-15 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 127,494 65,100 104.34 24,024 106.87 0.3998
2018-02-13 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 62,394 -600 -0.95 11,613 12.21 0.2041
2017-11-14 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 62,994 22,105 54.06 10,349 58.27 0.2012
2017-11-09 2017-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 40,889 -68,670 -62.68 6,539 -64.41 0.1398
2017-08-14 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 40,889 -68,670 6,539
2017-05-12 2017-03-31 13F COSTCO WHSL CORP COM 22160K105 109,559 109,559 18,372 0.3714
2017-02-14 2016-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -117,409 -100.00 0 -100.00
2016-11-14 2016-09-30 13F COSTCO WHSL CORP COM 22160K105 117,409 8,890 8.19 17,906 5.07 0.3199
2016-08-15 2016-06-30 13F COSTCO WHSL CORP COM 22160K105 108,519 -2,600 -2.34 17,042 -2.67 0.3529
2016-05-16 2016-03-31 13F COSTCO WHSL CORP COM 22160K105 111,119 109,560 7,027.58 17,510 6,848.41 0.3709
2016-02-16 2015-12-31 13F COSTCO WHSL CORP COM 22160K105 1,559 0 0.00 252 12.00 0.0050
2015-11-16 2015-09-30 13F COSTCO WHSL CORP COM 22160K105 1,559 -154,903 -99.00 225 -98.94 0.0046
2015-08-14 2015-06-30 13F COSTCO WHSL CORP COM 22160K105 156,462 -175,532 -52.87 21,132 -57.98 0.4019
2015-05-15 2015-03-31 13F COSTCO WHSL CORP COM 22160K105 331,994 -71,625 -17.75 50,295 -12.09 0.8560
2015-02-17 2014-12-31 13F COSTCO WHSL CORP COM 22160K105 403,619 -33,890 -7.75 57,213 4.35 0.9801
2014-11-14 2014-09-30 13F COSTCO WHSL CORP COM 22160K105 437,509 16,020 3.80 54,829 12.96 0.9159
2014-08-14 2014-06-30 13F COSTCO WHSL CORP COM 22160K105 421,489 -6,000 -1.40 48,539 1.67 0.8033
2014-05-15 2014-03-31 13F COSTCO WHSL CORP COM 22160K105 427,489 117,190 37.77 47,742 29.27 0.7998
2014-02-14 2013-12-31 13F COSTCO WHSL CORP COM 22160K105 310,299 -8,719 -2.73 36,932 0.52 0.5548
2013-11-14 2013-09-30 13F COSTCO WHSL CORP COM 22160K105 319,018 22,697 7.66 36,741 12.14 0.6223
2013-08-14 2013-06-30 13F COSTCO WHSL CORP COM 22160K105 296,321 296,321 32,764 0.5787
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.