MetaCap

Costco Wholesale Insider Trades

NASDAQ: COSTConsumer DiscretionaryDepartment/Specialty Retail StoresUSD

946.92-1.00 (-0.11%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Last 12 months

Purchases
0 · $0
Sales
14 · $17.26M
Shares bought / sold
0 / 18.57K
Net activity
Net selling $17.3 million

Costco Wholesale insider activity

Over the last 12 months, Costco Wholesale insiders reported 83 transactions on SEC Form 4: 0 open-market purchases and 14 sales. Insiders bought $0 and sold $17.3 million worth of stock, for net insider selling of $17.3 million. The largest seller was Adamo Claudine, with $5.3 million in reported sales.

The most recent filing shows Adamo Claudine (Executive Vice President) selling 2,200 shares at $915.93 on Sep 29, 2026. Insider sales are common for compensation, tax and diversification reasons, while open-market purchases are rarer; tracking both helps put COST's ownership changes in context.

Summary generated from market data by MetaCap's automated system. Methodology

COST insider transactions

Costco Wholesale insider transactions
DateInsiderTypeSharesValueFiling
Sep 29, 2026Frates CatonSr. Executive Vice PresidentSale801$733.33KForm 4
Sep 29, 2026Adamo ClaudineExecutive Vice PresidentSale2,200$2.02MForm 4
Sep 10, 2026Adamo ClaudineExecutive Vice PresidentTax withholding917$827.20KForm 4
Sep 10, 2026Adamo ClaudineExecutive Vice PresidentAward4,129—Form 4
Sep 10, 2026Frates CatonExecutive Vice PresidentTax withholding1,654$1.49MForm 4
Sep 10, 2026Frates CatonExecutive Vice PresidentAward4,552—Form 4
Sep 10, 2026Klauer James CExecutive Vice PresidentTax withholding936$844.73KForm 4
Sep 10, 2026Klauer James CExecutive Vice PresidentAward4,129—Form 4
Sep 10, 2026Rubanenko YoramExecutive Vice PresidentTax withholding1,696$1.53MForm 4
Sep 10, 2026Rubanenko YoramExecutive Vice PresidentAward4,129—Form 4
Sep 10, 2026Wilcox William RichardExecutive Vice PresidentTax withholding1,935$1.75MForm 4
Sep 10, 2026Wilcox William RichardExecutive Vice PresidentAward4,129—Form 4
Sep 10, 2026Jones Teresa A.Executive Vice PresidentTax withholding1,459$1.32MForm 4
Sep 10, 2026Jones Teresa A.Executive Vice PresidentAward4,129—Form 4
Sep 10, 2026Riel PierreExecutive Vice PresidentTax withholding1,562$1.41MForm 4
Sep 10, 2026Riel PierreExecutive Vice PresidentAward4,552—Form 4
Jul 10, 2026RAIKES JEFFREY SDirectorGift5,249—Form 4
Jun 23, 2026DENMAN KENNETH DDirectorSale885$847.35KForm 4
Apr 1, 2026Frates CatonExecutive Vice PresidentSale700$695.10KForm 4
Mar 12, 2026George Sarah CatherineExecutive Vice Presidentother642$636.48KForm 4
Mar 11, 2026MILLERCHIP GARYExecutive Vice PresidentTax withholding1,154$1.15MForm 4
Mar 9, 2026Adamo ClaudineExecutive Vice PresidentSale730$732.21KForm 4
Jan 27, 2026Jones Teresa A.Executive Vice PresidentGift300—Form 4
Jan 27, 2026RAIKES JEFFREY SDirectorGift5,115—Form 4
Jan 21, 2026Jones Teresa A.Executive Vice PresidentSale850$838.32KForm 4
Jan 16, 2026Raimondo Gina MarieDirectorAward215—Form 4
Jan 16, 2026DECKER SUSAN LDirectorSale458$437.39KForm 4
Jan 14, 2026Klauer James CExecutive Vice PresidentSale1,500$1.41MForm 4
Jan 9, 2026Miller Russell DSr. Executive Vice PresidentSale1,500$1.37MForm 4
Dec 30, 2025POLIT JAVIERExecutive Vice PresidentSale558$481.76KForm 4
Dec 29, 2025POLIT JAVIERExecutive Vice PresidentSale2,049$1.78MForm 4
Dec 19, 2025DENMAN KENNETH DDirectorGift325—Form 4
Dec 15, 2025DECKER SUSAN LDirectorGift2,827—Form 4
Nov 10, 2025RAIKES JEFFREY SDirectorGift4,120—Form 4
Nov 7, 2025Wilcox William RichardExecutive Vice PresidentSale2,400$2.23MForm 4
Oct 24, 2025Adamo ClaudineExecutive Vice PresidentSale2,700$2.53MForm 4
Oct 24, 2025Barbre Tiffany MariePrincipal Accounting OfficerSale1,239$1.16MForm 4
Oct 22, 2025JEWELL SARAH MR SALLYDirectorAward286—Form 4
Oct 22, 2025RAIKES JEFFREY SDirectorAward286—Form 4
Oct 22, 2025STANTON JOHN WDirectorAward286—Form 4
Oct 22, 2025Wilderotter Mary AgnesDirectorAward286—Form 4
Oct 22, 2025Adamo ClaudineExecutive Vice PresidentTax withholding111$104.45KForm 4
Oct 22, 2025Adamo ClaudineExecutive Vice PresidentTax withholding177$166.89KForm 4
Oct 22, 2025Adamo ClaudineExecutive Vice PresidentTax withholding199$187.70KForm 4
Oct 22, 2025Adamo ClaudineExecutive Vice PresidentTax withholding97$91.58KForm 4
Oct 22, 2025Adamo ClaudineExecutive Vice PresidentTax withholding122$115.04KForm 4
Oct 22, 2025Frates CatonExecutive Vice PresidentTax withholding706$666.71KForm 4
Oct 22, 2025Frates CatonExecutive Vice PresidentTax withholding901$851.40KForm 4
Oct 22, 2025Frates CatonExecutive Vice PresidentTax withholding758$716.33KForm 4
Oct 22, 2025Frates CatonExecutive Vice PresidentTax withholding248$233.96KForm 4
Oct 22, 2025Frates CatonExecutive Vice PresidentTax withholding156$147.12KForm 4
Oct 22, 2025Klauer James CExecutive Vice PresidentTax withholding111$104.83KForm 4
Oct 22, 2025Klauer James CExecutive Vice PresidentTax withholding177$167.27KForm 4
Oct 22, 2025Klauer James CExecutive Vice PresidentTax withholding199$187.70KForm 4
Oct 22, 2025Klauer James CExecutive Vice PresidentTax withholding191$180.13KForm 4
Oct 22, 2025Klauer James CExecutive Vice PresidentTax withholding240$226.68KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPTax withholding366$345.72KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPTax withholding585$552.50KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPTax withholding569$537.42KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPTax withholding573$541.14KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPTax withholding421$397.72KForm 4
Oct 22, 2025Sullivan John ChristopherExecutive VPAward4,654—Form 4
Oct 22, 2025Callans Patrick JExecutive Vice PresidentTax withholding111$104.45KForm 4
Oct 22, 2025Callans Patrick JExecutive Vice PresidentTax withholding177$166.89KForm 4
Oct 22, 2025Callans Patrick JExecutive Vice PresidentTax withholding199$187.70KForm 4
Oct 22, 2025Callans Patrick JExecutive Vice PresidentTax withholding191$180.51KForm 4
Oct 22, 2025Callans Patrick JExecutive Vice PresidentTax withholding240$226.68KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerTax withholding85$79.92KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerTax withholding135$127.91KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerTax withholding119$112.00KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerTax withholding90$85.24KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerTax withholding114$107.25KForm 4
Oct 22, 2025Barbre Tiffany MariePrincipal Accounting OfficerAward2,118—Form 4
Oct 22, 2025MILLERCHIP GARYExecutive Vice PresidentTax withholding500$472.64KForm 4
Oct 22, 2025MILLERCHIP GARYExecutive Vice PresidentTax withholding313$295.73KForm 4
Oct 22, 2025MILLERCHIP GARYExecutive Vice PresidentAward6,268—Form 4
Oct 22, 2025POLIT JAVIERExecutive Vice PresidentTax withholding337$317.99KForm 4
Oct 22, 2025POLIT JAVIERExecutive Vice PresidentTax withholding294$277.63KForm 4
Oct 22, 2025POLIT JAVIERExecutive Vice PresidentTax withholding538$508.03KForm 4
Oct 22, 2025POLIT JAVIERExecutive Vice PresidentAward4,219—Form 4
Oct 22, 2025Vachris Roland MichaelPresident and CEOTax withholding1,160$1.10MForm 4
Oct 22, 2025Vachris Roland MichaelPresident and CEOTax withholding1,493$1.41MForm 4
Oct 22, 2025Vachris Roland MichaelPresident and CEOAward13,834—Form 4

Transaction codes follow SEC Form 4: P = open-market purchase, S = open-market sale, A = grant or award, M = option exercise, F = shares withheld for taxes. About Form 4

Related