Newest
PEBO ▼ sold $76K · Augenstein Mark filed 1d agoBBT ▲ bought $105K · Hollister Thomas J filed 2d agoBBT ▼ sold $20K · Eagan John Buckley filed 2d agoGS ▼ sold $60K · LESLIE ERICKA T filed 2d agoGS ▼ sold $163K · LESLIE ERICKA T filed 2d agoMSCI ▼ sold $1.5M · Gutowski Robert J. filed 2d agoGL ▼ sold $2.2M · MAJORS MICHAEL CLAY filed 2d agoPHR ▲ bought $362 · Linetsky David filed 2d agoPHR ▲ bought $320 · Linetsky David filed 2d agoRVI ▲ bought $23K · Whitney Meredith filed 2d agoLEO ▲ bought $369K · Saba Capital Management, L.P. filed 2d agoPG ▼ sold $5.7M · Jejurikar Shailesh filed 2d agoICLR ▼ sold $10K · Lyons Emer filed 2d agoICLR ▼ sold $10K · Lyons Emer filed 2d agoICLR ▼ sold $8K · Lyons Emer filed 2d agoICLR ▼ sold $15K · Lyons Emer filed 2d agoICLR ▼ sold $8K · Lyons Emer filed 2d agoPG ▼ sold $698K · Gama Paul filed 2d ago

Company / CIK 0000909832

COSTCO WHOLESALE CORP /NEW

Ticker
COST
Size, estimated from filings
Mega cap ($200B and up)
Insiders on file
24
Members of Congress who traded it
9
Federal contracts on record
none matched
Lobbying filings on record
none matched
SEC filings
EDGAR ↗
Latest trade on record
October 22, 2026

COSTCO WHOLESALE CORP /NEW (COST) has 24 insiders on file who disclosed 60 transactions in the last 12 months (0 open-market buys, 37 sales, about $33.4M at reported prices), and 12 congressional trades in its stock are on record. No federal contract award that started in the last 180 days was found for a recipient with exactly this name; no lobbying filing names it as client this year.

Last updated October 26, 2026 · Sources: SEC EDGAR; USAspending; Senate LDA

COSTCO WHOLESALE CORP /NEW in charts

Who is trading this stock

Which people account for the buying and selling over the last 12 months?

BoughtSold

8 people account for the disclosed buying and selling in COSTCO WHOLESALE CORP /NEW over the last 12 months; the most active is Wilcox William Richard with $5.0M.

Insiders

NameRoleRowsBoughtSoldLast filed
Klauer James CExecutive Vice President13012October 26, 2026
RAIKES JEFFREY SDirector500October 26, 2026
Raimondo Gina MarieDirector200October 26, 2026
MILLERCHIP GARYExecutive Vice President806October 26, 2026
George Sarah CatherineExecutive Vice President605October 26, 2026
JAMES HAMILTON EDirector200October 26, 2026
JEWELL SARAH MR SALLYDirector200October 26, 2026
Wilderotter Mary AgnesDirector200October 26, 2026
STANTON JOHN WDirector200October 26, 2026
Vachris Roland MichaelPresident and CEO705October 26, 2026
Wilcox William RichardExecutive Vice President403October 14, 2026
DECKER SUSAN LDirector301October 1, 2026
Frates CatonExecutive Vice President908September 30, 2026
Adamo ClaudineExecutive Vice President1009September 30, 2026
Rubanenko YoramExecutive Vice President201September 14, 2026
Riel PierreExecutive Vice President201September 14, 2026
Jones Teresa A.Executive Vice President402September 14, 2026
DENMAN KENNETH DDirector301June 25, 2026
Miller Russell DSr. Executive Vice President202January 12, 2026
POLIT JAVIERExecutive Vice President605December 31, 2025
Foulkes HelenaDirector100October 24, 2025
Callans Patrick JExecutive Vice President505October 24, 2025
Sullivan John ChristopherExecutive VP605October 24, 2025
Barbre Tiffany MarieInsider706October 24, 2025

Rows are this company's Form 4 rows for each person. "Bought" and "sold" count open-market purchases (code P) and sales only. More in insider buying and insider selling.

Members of Congress who traded COST

From periodic transaction reports that name the company's stock. Amounts are the sums of the ranges as filed. Every row is on the COST page.

MemberSeatTradesBoughtSoldRange as filedLatest
Gilbert Ray Cisneros, Jr.Representative (CA, District 31), Democrat321$3,003–$45KJanuary 30, 2026
Richard McCormickRepresentative (GA, District 7), Republican211$2,002–$30KJuly 30, 2026
Rick W. AllenRepresentative (GA, District 12), Republican101$1,001–$15KSeptember 18, 2026
Dan NewhouseRepresentative (WA, District 4), Republican110$1,001–$15KJuly 10, 2026
Alan ArmstrongSenator (OK), Republican110$1,001–$15KMarch 27, 2026
Markwayne MullinSenator (OK), Republican110$15K–$50KDecember 29, 2025
Shelley Moore CapitoSenator (WV), Republican101$1,001–$15KOctober 17, 2025
John BoozmanSenator (AR), Republican110$1,001–$15KOctober 9, 2025
Val T. HoyleRepresentative (OR, District 4), Democrat101$1,001–$15KSeptember 23, 2025

Insider transactions

Download CSV125 rows · 45 KB · insider and congressional rows for this ticker · all downloads

FilerSecuritySideTrade dateDisclosedLagSharesPriceValueFlagsSourceShare
George Sarah CatherineCOSTSell FOctober 22, 2026October 26, 20264d47$1,018$48KForm 4 ↗
George Sarah CatherineCOSTSell FOctober 22, 2026October 26, 20264d35$1,018$35KForm 4 ↗
George Sarah CatherineCOSTSell FOctober 22, 2026October 26, 20264d56$1,018$57KForm 4 ↗
George Sarah CatherineCOSTSell FOctober 22, 2026October 26, 20264d62$1,018$64KForm 4 ↗
George Sarah CatherineCOSTSell FOctober 22, 2026October 26, 20264d60$1,018$61KForm 4 ↗
JAMES HAMILTON ECOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
JEWELL SARAH MR SALLYCOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
Klauer James CCOSTSell FOctober 22, 2026October 26, 20264d542$1,018$552KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2026October 26, 20264d443$1,018$451KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2026October 26, 20264d530$1,018$540KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2026October 26, 20264d396$1,018$403KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2026October 26, 20264d191$1,018$194KForm 4 ↗
RAIKES JEFFREY SCOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
Raimondo Gina MarieCOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
STANTON JOHN WCOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
Wilderotter Mary AgnesCOSTOther AOctober 22, 2026October 26, 20264d266——Form 4 ↗
Vachris Roland MichaelCOSTSell FOctober 22, 2026October 26, 20264d1,131$1,018$1.2MForm 4 ↗
Vachris Roland MichaelCOSTSell FOctober 22, 2026October 26, 20264d1,121$1,018$1.1MForm 4 ↗
Vachris Roland MichaelCOSTSell FOctober 22, 2026October 26, 20264d1,404$1,018$1.4MForm 4 ↗
Vachris Roland MichaelCOSTOther AOctober 22, 2026October 26, 20264d13,973——Form 4 ↗
MILLERCHIP GARYCOSTSell FOctober 22, 2026October 26, 20264d817$1,018$832KForm 4 ↗
MILLERCHIP GARYCOSTSell FOctober 22, 2026October 26, 20264d500$1,018$509KForm 4 ↗
MILLERCHIP GARYCOSTSell FOctober 22, 2026October 26, 20264d313$1,018$319KForm 4 ↗
MILLERCHIP GARYCOSTOther AOctober 22, 2026October 26, 20264d6,140——Form 4 ↗
Wilcox William RichardCOSTSell SOctober 13, 2026October 14, 20261d1,100$958$1.1MForm 4 ↗
Adamo ClaudineCOSTSell SSeptember 29, 2026September 30, 20261d2,200$916$2.0MForm 4 ↗
Frates CatonCOSTSell SSeptember 29, 2026September 30, 20261d801$916$733KForm 4 ↗
Adamo ClaudineCOSTSell FSeptember 10, 2026September 14, 20264d917$902$827KForm 4 ↗
Adamo ClaudineCOSTOther ASeptember 10, 2026September 14, 20264d4,129——Form 4 ↗
Frates CatonCOSTSell FSeptember 10, 2026September 14, 20264d1,654$902$1.5MForm 4 ↗
Frates CatonCOSTOther ASeptember 10, 2026September 14, 20264d4,552——Form 4 ↗
Jones Teresa A.COSTSell FSeptember 10, 2026September 14, 20264d1,459$902$1.3MForm 4 ↗
Jones Teresa A.COSTOther ASeptember 10, 2026September 14, 20264d4,129——Form 4 ↗
Klauer James CCOSTSell FSeptember 10, 2026September 14, 20264d936$902$845KForm 4 ↗
Klauer James CCOSTOther ASeptember 10, 2026September 14, 20264d4,129——Form 4 ↗
Riel PierreCOSTSell FSeptember 10, 2026September 14, 20264d1,562$902$1.4MForm 4 ↗
Riel PierreCOSTOther ASeptember 10, 2026September 14, 20264d4,552——Form 4 ↗
Rubanenko YoramCOSTSell FSeptember 10, 2026September 14, 20264d1,696$902$1.5MForm 4 ↗
Rubanenko YoramCOSTOther ASeptember 10, 2026September 14, 20264d4,129——Form 4 ↗
Wilcox William RichardCOSTSell FSeptember 10, 2026September 14, 20264d1,935$902$1.7MForm 4 ↗
Wilcox William RichardCOSTOther ASeptember 10, 2026September 14, 20264d4,129——Form 4 ↗
RAIKES JEFFREY SCOSTOther GJuly 10, 2026July 14, 20264d5,249——Form 4 ↗
DENMAN KENNETH DCOSTSell SJune 23, 2026June 25, 20262d885$957$847KForm 4 ↗
Frates CatonCOSTSell SApril 1, 2026April 1, 20260d700$993$695KForm 4 ↗
George Sarah CatherineCOSTOther IMarch 12, 2026March 13, 20261d642$991$636KindirectForm 4 ↗
MILLERCHIP GARYCOSTSell FMarch 11, 2026March 13, 20262d1,154$992$1.1MForm 4 ↗
Adamo ClaudineCOSTSell SMarch 9, 2026March 11, 20262d730$1,003$732KForm 4 ↗
RAIKES JEFFREY SCOSTOther GJanuary 27, 2026January 28, 20261d5,115——Form 4 ↗
Jones Teresa A.COSTOther GJanuary 27, 2026January 28, 20261d300——Form 4 ↗
Jones Teresa A.COSTSell SJanuary 21, 2026January 23, 20262d850$986$838KForm 4 ↗
DECKER SUSAN LCOSTSell SJanuary 16, 2026January 20, 20264d458$955$437KForm 4 ↗
Raimondo Gina MarieCOSTOther AJanuary 16, 2026January 20, 20264d215——Form 4 ↗
Klauer James CCOSTSell SJanuary 14, 2026January 15, 20261d1,500$939$1.4MForm 4 ↗
Miller Russell DCOSTSell SJanuary 9, 2026January 12, 20263d1,500$916$1.4MindirectForm 4 ↗
POLIT JAVIERCOSTSell SDecember 30, 2025December 31, 20251d558$863$482KForm 4 ↗
POLIT JAVIERCOSTSell SDecember 29, 2025December 31, 20252d2,049$867$1.8MForm 4 ↗
DENMAN KENNETH DCOSTOther GDecember 19, 2025December 22, 20253d325——Form 4 ↗
DECKER SUSAN LCOSTOther GDecember 15, 2025December 17, 20252d2,827——Form 4 ↗
RAIKES JEFFREY SCOSTOther GNovember 10, 2025November 12, 20252d4,120——Form 4 ↗
Wilcox William RichardCOSTSell SNovember 7, 2025November 12, 20255d2,400$930$2.2MlateForm 4 ↗
Barbre Tiffany MarieCOSTSell SOctober 24, 2025October 24, 20250d1,239$935$1.2MForm 4 ↗
Barbre Tiffany MarieCOSTSell FOctober 22, 2025October 24, 20252d85$945$80KForm 4 ↗
Barbre Tiffany MarieCOSTSell FOctober 22, 2025October 24, 20252d135$945$128KForm 4 ↗
Barbre Tiffany MarieCOSTSell FOctober 22, 2025October 24, 20252d119$945$112KForm 4 ↗
Barbre Tiffany MarieCOSTSell FOctober 22, 2025October 24, 20252d90$945$85KForm 4 ↗
Barbre Tiffany MarieCOSTSell FOctober 22, 2025October 24, 20252d114$945$107KForm 4 ↗
Barbre Tiffany MarieCOSTOther AOctober 22, 2025October 24, 20252d2,118——Form 4 ↗
Vachris Roland MichaelCOSTSell FOctober 22, 2025October 24, 20252d1,160$945$1.1MForm 4 ↗
Vachris Roland MichaelCOSTSell FOctober 22, 2025October 24, 20252d1,493$945$1.4MForm 4 ↗
Vachris Roland MichaelCOSTOther AOctober 22, 2025October 24, 20252d13,834——Form 4 ↗
Sullivan John ChristopherCOSTSell FOctober 22, 2025October 24, 20252d366$945$346KForm 4 ↗
Sullivan John ChristopherCOSTSell FOctober 22, 2025October 24, 20252d585$945$552KForm 4 ↗
Sullivan John ChristopherCOSTSell FOctober 22, 2025October 24, 20252d569$945$537KForm 4 ↗
Sullivan John ChristopherCOSTSell FOctober 22, 2025October 24, 20252d573$945$541KForm 4 ↗
Sullivan John ChristopherCOSTSell FOctober 22, 2025October 24, 20252d421$945$398KForm 4 ↗
Sullivan John ChristopherCOSTOther AOctober 22, 2025October 24, 20252d4,654——Form 4 ↗
POLIT JAVIERCOSTSell FOctober 22, 2025October 24, 20252d337$945$318KForm 4 ↗
POLIT JAVIERCOSTSell FOctober 22, 2025October 24, 20252d294$945$278KForm 4 ↗
POLIT JAVIERCOSTSell FOctober 22, 2025October 24, 20252d538$945$508KForm 4 ↗
POLIT JAVIERCOSTOther AOctober 22, 2025October 24, 20252d4,219——Form 4 ↗
MILLERCHIP GARYCOSTSell FOctober 22, 2025October 24, 20252d500$945$473KForm 4 ↗
MILLERCHIP GARYCOSTSell FOctober 22, 2025October 24, 20252d313$945$296KForm 4 ↗
MILLERCHIP GARYCOSTOther AOctober 22, 2025October 24, 20252d6,268——Form 4 ↗
Klauer James CCOSTSell FOctober 22, 2025October 24, 20252d111$945$105KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2025October 24, 20252d177$945$167KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2025October 24, 20252d199$945$188KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2025October 24, 20252d191$945$180KForm 4 ↗
Klauer James CCOSTSell FOctober 22, 2025October 24, 20252d240$945$227KForm 4 ↗
Frates CatonCOSTSell FOctober 22, 2025October 24, 20252d706$945$667KForm 4 ↗
Frates CatonCOSTSell FOctober 22, 2025October 24, 20252d901$945$851KForm 4 ↗
Frates CatonCOSTSell FOctober 22, 2025October 24, 20252d758$945$716KForm 4 ↗
Frates CatonCOSTSell FOctober 22, 2025October 24, 20252d248$945$234KForm 4 ↗
Frates CatonCOSTSell FOctober 22, 2025October 24, 20252d156$945$147KForm 4 ↗
Callans Patrick JCOSTSell FOctober 22, 2025October 24, 20252d111$945$104KForm 4 ↗
Callans Patrick JCOSTSell FOctober 22, 2025October 24, 20252d177$945$167KForm 4 ↗
Callans Patrick JCOSTSell FOctober 22, 2025October 24, 20252d199$945$188KForm 4 ↗
Callans Patrick JCOSTSell FOctober 22, 2025October 24, 20252d191$945$181KForm 4 ↗
Callans Patrick JCOSTSell FOctober 22, 2025October 24, 20252d240$945$227KForm 4 ↗
Adamo ClaudineCOSTSell SOctober 24, 2025October 24, 20250d2,700$936$2.5MForm 4 ↗
Adamo ClaudineCOSTSell FOctober 22, 2025October 24, 20252d111$945$104KForm 4 ↗
Adamo ClaudineCOSTSell FOctober 22, 2025October 24, 20252d177$945$167KForm 4 ↗
Adamo ClaudineCOSTSell FOctober 22, 2025October 24, 20252d199$945$188KForm 4 ↗
Adamo ClaudineCOSTSell FOctober 22, 2025October 24, 20252d97$945$92KForm 4 ↗
Adamo ClaudineCOSTSell FOctober 22, 2025October 24, 20252d122$945$115KForm 4 ↗
STANTON JOHN WCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
Wilderotter Mary AgnesCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
RAIKES JEFFREY SCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
JEWELL SARAH MR SALLYCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
JAMES HAMILTON ECOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
Foulkes HelenaCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
DENMAN KENNETH DCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
DECKER SUSAN LCOSTOther AOctober 22, 2025October 24, 20252d286——Form 4 ↗
Miller Russell DCOSTSell SSeptember 29, 2025October 1, 20252d3,381$915$3.1MindirectForm 4 ↗

Federal contracts (USAspending, awards started in the last 180 days)

No contract award starting in the last 180 days was found for a recipient named exactly "COSTCO WHOLESALE CORP /NEW". Subsidiaries and differently-spelled recipients are not matched — search contracts.

Lobbying (Senate LDA, as client)

No LDA filing posted since October 2025 names "COSTCO WHOLESALE CORP /NEW" as the client. Filings under a subsidiary or trade-association name are not matched — search lobbying.

Companies whose stock was traded by the same people who traded COST, by number of filers in common. It shows overlap in public filings and nothing else.

Guides for this page

Sources and method

Official sources behind this page
SourceFilingsRowsFirst filedNewest filedRead the originals
House Clerk, periodic transaction reports88October 10, 2025October 14, 2026House Clerk search
Senate eFD, periodic transaction reports44November 4, 2025July 21, 2026Senate eFD search
SEC EDGAR, Form 456113October 1, 2025October 26, 2026Form 4 list on EDGAR

Site built October 27, 2026. Every row in the tables above links to its own filing. To quote a figure, use the Cite button at the top of the page; see how to cite and reuse.

Insiders and their transactions come from SEC EDGAR Form 4 filings for this issuer. Contracts and lobbying are matched by exact normalized name (suffixes like Inc./Corp. ignored) to USAspending recipients and LDA clients — a conservative match that misses subsidiaries on purpose. See methodology and corrections.

Not investment advice. Public records shown as filed; no recommendation is made or implied.