greeksoup/ stock research
Stock research / United States / COST / Planned sales

Costco Wholesale Corp. planned insider sales

In the last twelve months insiders at Costco Wholesale Corp. filed 14 Form 144 notices of planned sales, 15,333 shares worth $14.4 million at the time of filing, from 11 sellers. The latest, filed 13 October 2026: Wilcox William Richard (officer), 1,100 shares worth $1.1 million, planned for around 13 October 2026 through Fidelity Brokerage Services LLC.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
13 October 2026Wilcox William RichardOfficer1,100$1.1 million13 October 20261,100 shares from 13 October 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 September 2026Frates CatonOfficer801$733,32829 September 2026801 shares from 29 September 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 September 2026Adamo ClaudineOfficer2,200$2.0 million29 September 20262,200 shares from 29 September 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
23 June 2026Denman Kenneth DDirector885$847,34623 June 2026885 shares from 23 June 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
12 June 2026Callans Patrick JFormer Officer1,001$972,84812 June 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
5 June 2026Callans Patrick JFormer Officer1,000$995,3735 June 2026No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 144
1 April 2026Caton FratesOfficer700$689,7581 April 2026700 shares from 1 April 2026Merrill LynchStock Plan ActivityForm 144
9 March 2026Adamo ClaudineOfficer730$732,2059 March 2026730 shares from 9 March 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
21 January 2026Jones Teresa A.Officer850$838,31821 January 2026850 shares from 21 January 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
16 January 2026Susan L Decker TrustDirector458$437,39016 January 2026458 shares from 16 January 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance Stock UnitsForm 144
14 January 2026Klauer James COfficer1,500$1.4 million14 January 20261,500 shares from 14 January 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
9 January 2026The Miller Family TrustOfficer1,500$1.4 million9 January 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted stock vesting under a registered planForm 144
30 December 2025Polit JavierOfficer559$481,75930 December 20252,607 shares from 29 December 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
29 December 2025Polit JavierOfficer2,049$1.8 million29 December 2025No matching Form 4 saleFidelity Brokerage Services LLCRestricted Stock VestingForm 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.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?