Costco Wholesale Corporation
MX ˙ BMV ˙ US22160K1051
SecurityMX:COST / Costco Wholesale Corporation
InstitutionIntegrated Advisors Network LLC
Latest Disclosed Ownership11,623 shares
Latest Disclosed Value $ 11,581,472
Integrated Advisors Network LLC ownership in COST / Costco Wholesale Corporation

On April 28, 2026 - Integrated Advisors Network LLC filed a 13F-HR form disclosing ownership of 11,623 shares of Costco Wholesale Corporation (MX:COST) valued at $11,581,472 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 16,067 shares of Costco Wholesale Corporation. This represents a change in shares of -27.66% during the quarter.

Integrated Advisors Network LLC has a history of taking positions in derivatives of the underlying security (COST) in the form of stock options.

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)
2026-04-28 2026-03-31 13F COSTCO WHOLESALE COM 22160K105 11,623 -4,444 -27.66 11,581 -16.41 0.6078
2026-02-17 2025-12-31 13F COSTCO WHSL CORP COM 22160K105 16,067 -315 -1.92 13,855 -8.63 0.6130
2025-11-12 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 16,382 184 1.14 15,164 -5.43 0.6369
2025-08-12 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 16,198 583 3.73 16,035 8.57 0.7240
2025-04-15 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 15,615 -803 -4.89 14,768 -1.83 0.7451
2025-02-25 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 16,418 333 2.07 15,043 5.50 0.7187
2024-10-25 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 16,085 226 1.43 14,260 5.78 0.6743
2024-08-09 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 15,859 -593 -3.60 13,480 11.84 0.6903
2024-05-06 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 16,452 1,475 9.85 12,053 21.93 0.6120
2024-02-26 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 14,977 1,601 11.97 9,886 30.82 0.5588
2023-11-16 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 13,376 -596 -4.27 7,557 0.45 0.4620
2023-07-14 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 13,972 -647 -4.43 7,522 3.57 0.4331
2023-05-08 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 14,619 -186 -1.26 7,264 7.47 0.4364
2023-02-02 2022-12-31 13F/A-1 COSTCO WHSL CORP COM 22160K105 14,805 628 4.43 6,759 0.94 0.4355
2022-11-08 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 14,177 -519 -3.53 6,695 -4.94 0.4549
2022-08-12 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 14,696 6,686 83.47 7,043 52.71 0.4583
2022-05-02 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 8,010 3,488 77.13 4,612 79.66 0.2704
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 4,522 -198 -4.19 2,567 21.03 0.1514
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 4,720 1,541 48.47 2,121 68.60 0.1407
2021-08-06 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 3,179 -464 -12.74 1,258 -2.02 0.0926
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 3,643 98 2.76 1,284 -3.89 0.1173
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 3,545 -546 -13.35 1,336 -7.99 0.1465
2020-11-09 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 4,091 474 13.10 1,452 32.36 0.1836
2020-08-13 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 3,617 118 3.37 1,097 9.92 0.1286
2020-05-06 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 3,499 819 30.56 998 26.65 0.1954
2020-02-06 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 2,680 2,680 788 0.1063
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
(%)
2024-05-06 2024-03-31 13F COSTCO WHSL CORP COM Call 1,099 n/a n/a n/a
2021-08-05 2021-06-30 13F COSTCO WHSL CORP COM Call 0 -100.00 0 n/a n/a n/a
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM Call 7,500 -62.50 0 n/a n/a n/a
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM Call 20,000 166.67 0 n/a n/a n/a
2020-11-09 2020-09-30 13F COSTCO WHSL CORP COM Call 0 -100.00 0 n/a n/a n/a
2020-08-13 2020-06-30 13F COSTCO WHSL CORP COM Call 1,500 0 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.