Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionLPL Financial LLC
Latest Disclosed Ownership1,113,122 shares
Latest Disclosed Value $ 1,109,147,967
LPL Financial LLC ownership in COST / Costco Wholesale Corporation

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 1,113,122 shares of Costco Wholesale Corporation (MX:COST) valued at $1,109,147,967 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,066,337 shares of Costco Wholesale Corporation. This represents a change in shares of 4.39% during the quarter.

LPL Financial LLC has a history of taking positions in derivatives of the underlying security (COST) in the form of stock options. The firm currently holds call options representing 5,000 of underlying shares valued at $4,982,150 USD and put options representing 5,100 of underlying shares valued at $5,081,793 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:COST / Costco Wholesale Corporation Historical Put/Call Ratio
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)
2026-05-06 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 1,113,122 46,785 4.39 1,109,148 20.62 0.2945
2026-02-11 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 1,066,337 -16,437 -1.52 919,545 -8.25 0.2511
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 1,082,774 10,395 0.97 1,002,248 -5.59 0.2921
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,072,379 97,002 9.95 1,061,590 15.08 0.3541
2025-05-07 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 975,377 61,632 6.74 922,492 10.18 0.3587
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 913,745 94,938 11.59 837,237 15.34 0.3403
2024-11-08 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 818,807 57,370 7.53 725,888 12.16 0.3236
2024-08-07 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 761,437 60,728 8.67 647,214 26.07 0.3224
2024-05-10 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 700,709 47,976 7.35 513,360 19.15 0.2756
2024-02-14 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 652,733 29,173 4.68 430,856 22.30 0.2609
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 623,560 32,049 5.42 352,287 10.62 0.2466
2023-07-31 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 591,511 29,374 5.23 318,458 14.02 0.2275
2023-05-10 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 562,137 28,153 5.27 279,309 14.58 0.2174
2023-02-07 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 533,984 5,018 0.95 243,763 -2.42 0.2087
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 528,966 46,828 9.71 249,815 8.11 0.2410
2022-08-12 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 482,138 16,743 3.60 231,079 -13.78 0.2195
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 465,395 49,022 11.77 267,998 13.38 0.2303
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 416,373 20,704 5.23 236,375 32.95 0.1984
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 395,669 17,802 4.71 177,794 18.92 0.1670
2021-08-13 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 377,867 16,328 4.52 149,510 17.32 0.1512
2021-05-14 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 361,539 -26,652 -6.87 127,435 -12.87 0.1465
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 388,191 40,127 11.53 146,263 18.37 0.1894
2020-11-09 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 348,064 39,646 12.85 123,563 32.13 0.1930
2020-08-13 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 308,418 -2,712 -0.87 93,515 5.41 0.1629
2020-05-14 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 311,130 47,804 18.15 88,713 14.62 0.1911
2020-02-14 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 263,326 11,061 4.38 77,395 6.49 0.1408
2019-11-13 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 252,265 9,564 3.94 72,680 13.32 0.1479
2019-08-09 2019-06-30 13F COSTCO WHSL CORP COM 22160K105 242,701 7,476 3.18 64,135 12.60 0.1367
2019-05-08 2019-03-31 13F COSTCO WHSL CORP COM 22160K105 235,225 9,412 4.17 56,959 23.82 0.1294
2019-02-07 2018-12-31 13F COSTCO WHSL CORP COM 22160K105 225,813 4,947 2.24 46,000 -11.33 0.1224
2018-11-14 2018-09-30 13F COSTCO WHSL CORP COM 22160K105 220,866 7,515 3.52 51,877 16.35 0.1243
2018-08-14 2018-06-30 13F COSTCO WHSL CORP COM 22160K105 213,351 2,488 1.18 44,586 12.21 0.1171
2018-05-15 2018-03-31 13F COSTCO WHSL CORP COM 22160K105 210,863 7,019 3.44 39,733 4.73 0.1094
2018-02-14 2017-12-31 13F COSTCO WHSL CORP COM 22160K105 203,844 34,517 20.38 37,939 36.38 0.1155
2017-11-14 2017-09-30 13F COSTCO WHSL CORP COM 22160K105 169,327 9,799 6.14 27,819 9.04 0.0983
2017-08-14 2017-06-30 13F COSTCO WHSL CORP COM 22160K105 159,528 140,293 729.36 25,513 695.54 0.0967
2017-05-15 2017-03-31 13F COSTCO WHOLESALE COM 22160K105 19,235 -2,842 -12.87 3,207 -9.05 0.0218
2017-02-13 2016-12-31 13F COSTCO WHOLESALE COM 22160K105 22,077 -7,579 -25.56 3,526 -21.01 0.0268
2016-11-16 2016-09-30 13F COSTCO WHOLESALE COM 22160K105 29,656 -15,675 -34.58 4,464 -36.89 0.0424
2016-08-15 2016-06-30 13F COSTCO WHOLESALE COM 22160K105 45,331 -133,028 -74.58 7,073 -74.58 0.0597
2016-05-16 2016-03-31 13F COSTCO WHOLESALE COM 22160K105 178,359 -31,683 -15.08 27,823 -17.18 0.0774
2016-02-12 2015-12-31 13F COSTCO WHOLESALE COM 22160K105 210,042 80,248 61.83 33,594 74.81 0.0932
2015-11-13 2015-09-30 13F COSTCO WHOLESALE COM 22160K105 129,794 7,723 6.33 19,217 15.86 0.1058
2015-08-14 2015-06-30 13F COSTCO WHOLESALE COM 22160K105 122,071 -4,112 -3.26 16,586 -12.51 0.0841
2015-05-14 2015-03-31 13F COSTCO WHOLESALE COM 22160K105 126,183 6,011 5.00 18,958 11.29 0.0968
2015-02-13 2014-12-31 13F COSTCO WHOLESALE COM 22160K105 120,172 1,628 1.37 17,035 15.18 0.0932
2014-11-10 2014-09-30 13F COSTCO WHOLESALE COM 22160K105 118,544 19,913 20.19 14,790 30.22 0.0882
2014-08-05 2014-06-30 13F/A-1 COSTCO WHOLESALE COM 22160K105 98,631 2,430 2.53 11,358 5.71 0.0662
2014-08-05 2014-06-30 13F COSTCO WHOLESALE COM 22160K105 98,631 1,693
2014-05-12 2014-03-31 13F COSTCO WHOLESALE COM 22160K105 96,201 8,290 9.43 10,744 2.69 0.0660
2014-02-13 2013-12-31 13F COSTCO WHOLESALE COM 22160K105 87,911 12,291 16.25 10,463 19.01 0.0653
2013-11-04 2013-09-30 13F COSTCO WHOLESALE COM 22160K105 75,620 -5,600 -6.89 8,792 -2.10 0.0585
2013-08-15 2013-06-30 13F COSTCO WHOLESALE COM 22160K105 81,220 81,220 8,981 0.0645
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-06 2026-03-31 13F COSTCO WHOLESALE COM Call 5,000 25.00 4,982 44.45 n/a n/a n/a
2026-02-11 2025-12-31 13F COSTCO WHSL CORP COM Call 4,000 33.33 3,449 24.24 n/a n/a n/a
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM Call 3,000 2,777 n/a n/a n/a
2025-05-07 2025-03-31 13F COSTCO WHSL CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-11 2024-12-31 13F COSTCO WHSL CORP COM Call 500 0.00 458 3.39 n/a n/a n/a
2024-11-08 2024-09-30 13F COSTCO WHSL CORP COM Call 500 -66.67 443 -65.23 n/a n/a n/a
2024-08-07 2024-06-30 13F COSTCO WHSL CORP COM Call 1,500 1,275 n/a n/a n/a
2023-07-31 2023-06-30 13F COSTCO WHSL CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-10 2023-03-31 13F COSTCO WHSL CORP COM Call 500 248 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-06 2026-03-31 13F COSTCO WHOLESALE COM Put 5,100 -46.32 5,082 -37.98 n/a n/a n/a
2026-02-11 2025-12-31 13F COSTCO WHSL CORP COM Put 9,500 26.67 8,192 18.01 n/a n/a n/a
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM Put 7,500 1,150.00 6,942 1,070.66 n/a n/a n/a
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM Put 600 594 n/a n/a n/a
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.