Costco Wholesale Corporation
DE ˙ XTRA ˙ US22160K1051
843,00 € ↑27,00 (3,31%)
2026-06-04
CENA AKCJI
SecurityDE:CTO / Costco Wholesale Corporation
InstitutionMaven Securities LTD
Latest Disclosed Ownership20,100 shares
Latest Disclosed Value $ 20,025,932
Maven Securities LTD ownership in CTO / Costco Wholesale Corporation

On May 15, 2026 - Maven Securities LTD filed a 13F-HR form disclosing ownership of 20,100 shares of Costco Wholesale Corporation (DE:CTO) valued at $17,464,890 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 20, 2025 disclosing 0 shares of Costco Wholesale Corporation. The current value of the position is $16,944,300 USD.

Maven Securities LTD has a history of taking positions in derivatives of the underlying security (CTO) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

DE:CTO / 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)
2026-05-15 2026-03-31 13F COSTCO WHOLESALE CORPORAT ION PUT 22160K955 20,100 20,100 20,026 0.3668
2026-05-15 2026-03-31 13F COSTCO WHOLESALE CORPORAT ION CALL 22160K905 20,600 20,600 20,524 0.3759
2025-11-20 2025-09-30 13F COSTCO WHSL CORP COM 22160K105 0 -1,932 -100.00 0 -100.00
2025-08-14 2025-06-30 13F COSTCO WHSL CORP COM 22160K105 1,932 -1,367 -41.44 1,913 -38.72 0.0455
2025-05-14 2025-03-31 13F COSTCO WHSL CORP COM 22160K105 3,299 2,057 165.62 3,120 174.17 0.0955
2025-02-14 2024-12-31 13F COSTCO WHSL CORP COM 22160K105 1,242 -1,760 -58.63 1,138 -57.23 0.0276
2024-11-14 2024-09-30 13F COSTCO WHSL CORP COM 22160K105 3,002 -3,178 -51.42 2,661 -49.33 0.0515
2024-08-29 2024-06-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 6,180 -910 -12.83 5,253 1.12 0.1164
2024-08-13 2024-06-30 13F COSTCO WHSL CORP COM 22160K105 6,180 -910 5,253 0.1920
2024-05-14 2024-03-31 13F COSTCO WHSL CORP COM 22160K105 7,090 -1,387 -16.36 5,194 -7.17 0.3060
2024-02-12 2023-12-31 13F COSTCO WHSL CORP COM 22160K105 8,477 7,041 490.32 5,595 589.89 0.1158
2023-11-13 2023-09-30 13F COSTCO WHSL CORP COM 22160K105 1,436 1,001 230.11 811 246.58 0.0092
2023-08-04 2023-06-30 13F COSTCO WHSL CORP COM 22160K105 435 435 234 0.0035
2023-05-15 2023-03-31 13F COSTCO WHSL CORP COM 22160K105 0 -450 -100.00 0 -100.00
2023-02-14 2022-12-31 13F COSTCO WHSL CORP COM 22160K105 450 -8,103 -94.74 205 -94.92 0.0046
2022-11-16 2022-09-30 13F/A-1 COSTCO WHSL CORP COM 22160K105 8,553 8,553 4,039 0.0747
2022-11-14 2022-09-30 13F COSTCO WHSL CORP COM 22160K105 8,553 8,553 40,393 0.0725
2022-08-15 2022-06-30 13F COSTCO WHSL CORP COM 22160K105 0 -576 -100.00 0 -100.00
2022-05-16 2022-03-31 13F COSTCO WHSL CORP COM 22160K105 576 576 332 0.0116
2022-02-14 2021-12-31 13F COSTCO WHSL CORP COM 22160K105 0 -1,070 -100.00 0 -100.00
2021-11-15 2021-09-30 13F COSTCO WHSL CORP COM 22160K105 1,070 -239 -18.26 481 -7.14 0.0155
2021-08-16 2021-06-30 13F COSTCO WHSL CORP COM 22160K105 1,309 1,309 518 0.0209
2021-05-17 2021-03-31 13F COSTCO WHSL CORP COM 22160K105 0 -1,303 -100.00 0 -100.00
2021-02-12 2020-12-31 13F COSTCO WHSL CORP COM 22160K105 1,303 1,303 491 0.0485
2020-11-13 2020-09-30 13F COSTCO WHSL CORP COM 22160K105 0 -884 -100.00 0 -100.00
2020-08-14 2020-06-30 13F COSTCO WHSL CORP COM 22160K105 884 -3,118 -77.91 267 -76.60 0.0183
2020-05-15 2020-03-31 13F COSTCO WHSL CORP COM 22160K105 4,002 3,264 442.28 1,141 428.24 0.1357
2020-02-14 2019-12-31 13F COSTCO WHSL CORP COM 22160K105 738 -12 -1.60 216 0.00 0.0196
2019-11-14 2019-09-30 13F COSTCO WHSL CORP COM 22160K105 750 750 216 0.0681
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
(%)
2025-11-20 2025-09-30 13F COSTCO WHSL CORP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F COSTCO WHSL CORP CALL Call 8,100 1,250.00 8,019 1,314.11 n/a n/a n/a
2025-05-14 2025-03-31 13F COSTCO WHSL CORP CALL Call 600 0.00 567 3.28 n/a n/a n/a
2025-02-14 2024-12-31 13F COSTCO WHSL CORP CALL Call 600 -50.00 550 -48.35 n/a n/a n/a
2024-11-14 2024-09-30 13F COSTCO WHSL CORP CALL Call 1,200 -84.00 1,064 -83.32 n/a n/a n/a
2024-08-29 2024-06-30 13F/A COSTCO WHSL CORP CALL Call 7,500 6,375 n/a n/a n/a
2024-05-14 2024-03-31 13F COSTCO WHSL CORP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F COSTCO WHSL CORP CALL Call 4,800 118.18 3,168 155.07 n/a n/a n/a
2023-11-13 2023-09-30 13F COSTCO WHSL CORP CALL Call 2,200 83.33 1,243 92.26 n/a n/a n/a
2023-08-04 2023-06-30 13F COSTCO WHSL CORP CALL Call 1,200 -62.50 647 -59.35 n/a n/a n/a
2023-05-15 2023-03-31 13F COSTCO WHSL CORP CALL Call 3,200 -20.00 1,590 -12.98 n/a n/a n/a
2023-02-14 2022-12-31 13F COSTCO WHSL CORP CALL Call 4,000 -72.79 1,826 -73.70 n/a n/a n/a
2022-11-16 2022-09-30 13F/A COSTCO WHSL CORP CALL Call 14,700 -55.86 6,942 -56.50 n/a n/a n/a
2022-11-14 2022-09-30 13F COSTCO WHSL CORP CALL Call 14,700 69,424 n/a n/a n/a
2022-08-15 2022-06-30 13F COSTCO WHSL CORP CALL Call 33,300 909.09 15,960 740.00 n/a n/a n/a
2022-05-16 2022-03-31 13F COSTCO WHSL CORP CALL Call 3,300 371.43 1,900 378.59 n/a n/a n/a
2022-02-14 2021-12-31 13F COSTCO WHSL CORP CALL Call 700 -58.82 397 -48.04 n/a n/a n/a
2021-11-15 2021-09-30 13F COSTCO WHSL CORP CALL Call 1,700 764 n/a n/a n/a
2021-08-16 2021-06-30 13F COSTCO WHSL CORP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F COSTCO WHSL CORP CALL Call 1,400 493 n/a n/a n/a
2021-02-12 2020-12-31 13F COSTCO WHSL CORP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F COSTCO WHSL CORP CALL Call 4,800 166.67 1,701 212.11 n/a n/a n/a
2020-08-14 2020-06-30 13F COSTCO WHSL CORP CALL Call 1,800 -62.50 545 -67.96 n/a n/a n/a
2020-05-15 2020-03-31 13F COSTCO WHSL CORP CALL Call 0 -100.00 0 -100.00 n/a n/a n/a
2020-02-14 2019-12-31 13F COSTCO WHSL CORP CALL Call 1,500 50.00 439 52.43 n/a n/a n/a
2019-11-14 2019-09-30 13F COSTCO WHSL CORP CALL Call 1,000 288 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
(%)
2026-05-15 2026-03-31 13F COSTCO WHSL CORP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F COSTCO WHSL CORP PUT Put 15,800 13,624 n/a n/a n/a
2025-11-20 2025-09-30 13F COSTCO WHSL CORP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F COSTCO WHSL CORP PUT Put 3,000 -33.33 2,970 -30.24 n/a n/a n/a
2025-05-14 2025-03-31 13F COSTCO WHSL CORP PUT Put 4,500 32.35 4,256 36.63 n/a n/a n/a
2025-02-14 2024-12-31 13F COSTCO WHSL CORP PUT Put 3,400 6.25 3,115 9.84 n/a n/a n/a
2024-11-14 2024-09-30 13F COSTCO WHSL CORP PUT Put 3,200 -38.46 2,837 -35.82 n/a n/a n/a
2024-08-29 2024-06-30 13F/A COSTCO WHSL CORP PUT Put 5,200 4,420 n/a n/a n/a
2024-05-14 2024-03-31 13F COSTCO WHSL CORP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-12 2023-12-31 13F COSTCO WHSL CORP PUT Put 13,700 65.06 9,043 92.86 n/a n/a n/a
2023-11-13 2023-09-30 13F COSTCO WHSL CORP PUT Put 8,300 4,689 n/a n/a n/a
2023-08-04 2023-06-30 13F COSTCO WHSL CORP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-05-15 2023-03-31 13F COSTCO WHSL CORP PUT Put 5,600 154.55 2,782 177.09 n/a n/a n/a
2023-02-14 2022-12-31 13F COSTCO WHSL CORP PUT Put 2,200 -91.37 1,004 -91.66 n/a n/a n/a
2022-11-16 2022-09-30 13F/A COSTCO WHSL CORP PUT Put 25,500 34.21 12,043 32.25 n/a n/a n/a
2022-11-14 2022-09-30 13F COSTCO WHSL CORP PUT Put 25,500 120,429 n/a n/a n/a
2022-08-15 2022-06-30 13F COSTCO WHSL CORP PUT Put 19,000 1,017.65 9,106 830.13 n/a n/a n/a
2022-05-16 2022-03-31 13F COSTCO WHSL CORP PUT Put 1,700 13.33 979 14.91 n/a n/a n/a
2022-02-14 2021-12-31 13F COSTCO WHSL CORP PUT Put 1,500 -89.36 852 -86.55 n/a n/a n/a
2021-11-15 2021-09-30 13F COSTCO WHSL CORP PUT Put 14,100 34.29 6,336 52.45 n/a n/a n/a
2021-08-16 2021-06-30 13F COSTCO WHSL CORP PUT Put 10,500 105.88 4,156 131.15 n/a n/a n/a
2021-05-17 2021-03-31 13F COSTCO WHSL CORP PUT Put 5,100 -51.43 1,798 -56.74 n/a n/a n/a
2021-02-12 2020-12-31 13F COSTCO WHSL CORP PUT Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-13 2020-09-30 13F COSTCO WHSL CORP PUT Put 7,300 1.39 2,587 18.78 n/a n/a n/a
2020-08-14 2020-06-30 13F COSTCO WHSL CORP PUT Put 7,200 53.19 2,178 62.54 n/a n/a n/a
2020-05-15 2020-03-31 13F COSTCO WHSL CORP PUT Put 4,700 -49.46 1,340 -50.75 n/a n/a n/a
2020-02-14 2019-12-31 13F COSTCO WHSL CORP PUT Put 9,300 1,450.00 2,721 1,472.83 n/a n/a n/a
2019-11-14 2019-09-30 13F COSTCO WHSL CORP PUT Put 600 173 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.