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Costco Wholesale Corp. planned insider sales

In the twelve months since 22 September 2025 insiders at Costco Wholesale Corp. filed 16 Form 144 notices of planned sales, 22,493 shares worth $21.0 million at the time of filing, from 12 sellers. The latest, filed 23 June 2026: Denman Kenneth D (director), 885 shares worth $847,346, planned for around 23 June 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleBrokerHow acquiredFiling
23 June 2026Denman Kenneth DDirector885$847,34623 June 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
12 June 2026Callans Patrick JFormer Officer1,001$972,84812 June 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
5 June 2026Callans Patrick JFormer Officer1,000$995,3735 June 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
1 April 2026Caton FratesOfficer700$689,7581 April 2026Merrill LynchStock Plan ActivityForm 144
9 March 2026Adamo ClaudineOfficer730$732,2059 March 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
21 January 2026Jones Teresa A.Officer850$838,31821 January 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
16 January 2026Susan L Decker TrustDirector458$437,39016 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance Stock UnitsForm 144
14 January 2026Klauer James COfficer1,500$1.4 million14 January 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
9 January 2026The Miller Family TrustOfficer1,500$1.4 million9 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
30 December 2025Polit JavierOfficer559$481,75930 December 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 December 2025Polit JavierOfficer2,049$1.8 million29 December 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
7 November 2025Wilcox William RichardOfficer2,400$2.2 million7 November 2025Fidelity Brokerage Services LLCRetirement Plan DistributionForm 144
24 October 2025Barbre Tiffany MarieOfficer1,240$1.2 million24 October 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
24 October 2025Adamo ClaudineOfficer2,700$2.5 million24 October 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 September 2025Frates CatonOfficer1,540$1.4 million29 September 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 September 2025The Miller Family TrustAffiliate3,381$3.1 million29 September 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144

A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was. Value is the filer's own aggregate market value. Whether the sale happened shows up later on Form 4, on the insiders page.

Source

Form 144 filings on EDGAR for Costco Wholesale Corp.: the company's filing index, each notice read from its own XML.

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