investment.com

COSTCO WHOLESALE CORP /NEW — insider transactions

38 transactions on record · COST · CIK 909832

Aggregates

computed from the filings below
Purchases, 12m
0
count of open-market buys
Sales, 12m
38
count of open-market sales
Buy / sell ratio, 12m
0.00
purchases per sale
Distinct insiders, 12m
15
Bought, 3m
$0
Sold, 3m
$9M
Median disclosure lag
4.0 d
trade date to filing date
Largest single trade, 24m
$1.4M
2026-10-22
Director share, 12m
34.2%
of transactions where role is stated
Current run
38 sells
consecutive same-direction transactions
Net 3m flow
-$9M
purchases minus sales
Total on record
38

Transactions

38 most recent shown
DisclosedTradedLag, dInsiderRoleTransactionSharesPriceValueSource
2026-10-262026-10-224Adamo ClaudineExecutive Vice PresidentShares withheld for tax198$1,018.21$201.9Kfiling
2026-10-262026-10-224Adamo ClaudineExecutive Vice PresidentShares withheld for tax109$1,018.21$110.6Kfiling
2026-10-262026-10-224Adamo ClaudineExecutive Vice PresidentShares withheld for tax177$1,018.21$180.3Kfiling
2026-10-262026-10-224Adamo ClaudineExecutive Vice PresidentShares withheld for tax97$1,018.21$98.7Kfiling
2026-10-262026-10-224Adamo ClaudineExecutive Vice PresidentShares withheld for tax111$1,018.21$113Kfiling
2026-10-262026-10-224Barbre Tiffany MarieOtherShares withheld for tax90$1,018.21$91.9Kfiling
2026-10-262026-10-224Barbre Tiffany MarieOtherShares withheld for tax85$1,018.21$86.1Kfiling
2026-10-262026-10-224Barbre Tiffany MarieOtherShares withheld for tax94$1,018.21$95.7Kfiling
2026-10-262026-10-224Barbre Tiffany MarieOtherShares withheld for tax166$1,018.21$169.5Kfiling
2026-10-262026-10-224Barbre Tiffany MarieOtherGrant or award1,965$0.00—filing
2026-10-262026-10-224Barbre Tiffany MarieOtherShares withheld for tax102$1,018.21$103.4Kfiling
2026-10-262026-10-224DENMAN KENNETH DDirectorGrant or award266$0.00—filing
2026-10-262026-10-224DECKER SUSAN LDirectorGrant or award266$0.00—filing
2026-10-262026-10-224George Sarah CatherineExecutive Vice PresidentShares withheld for tax60$1,018.21$61.1Kfiling
2026-10-262026-10-224George Sarah CatherineExecutive Vice PresidentShares withheld for tax35$1,018.21$35.5Kfiling
2026-10-262026-10-224JEWELL SARAH MR SALLYDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Klauer James CExecutive Vice PresidentShares withheld for tax530$1,018.21$539.6Kfiling
2026-10-262026-10-224RAIKES JEFFREY SDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Foulkes HelenaDirectorGrant or award266$0.00—filing
2026-10-262026-10-224George Sarah CatherineExecutive Vice PresidentShares withheld for tax56$1,018.21$56.8Kfiling
2026-10-262026-10-224JAMES HAMILTON EDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Klauer James CExecutive Vice PresidentShares withheld for tax396$1,018.21$403.4Kfiling
2026-10-262026-10-224Klauer James CExecutive Vice PresidentShares withheld for tax542$1,018.21$551.7Kfiling
2026-10-262026-10-224STANTON JOHN WDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Vachris Roland MichaelDirector, President and CEOShares withheld for tax1,404$1,018.21$1.4Mfiling
2026-10-262026-10-224MILLERCHIP GARYExecutive Vice PresidentGrant or award6,140$0.00—filing
2026-10-262026-10-224MILLERCHIP GARYExecutive Vice PresidentShares withheld for tax817$1,018.21$831.8Kfiling
2026-10-262026-10-224George Sarah CatherineExecutive Vice PresidentShares withheld for tax62$1,018.21$63.6Kfiling
2026-10-262026-10-224George Sarah CatherineExecutive Vice PresidentShares withheld for tax47$1,018.21$47.6Kfiling
2026-10-262026-10-224Klauer James CExecutive Vice PresidentShares withheld for tax191$1,018.21$194.2Kfiling
2026-10-262026-10-224Klauer James CExecutive Vice PresidentShares withheld for tax443$1,018.21$450.7Kfiling
2026-10-262026-10-224Raimondo Gina MarieDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Vachris Roland MichaelDirector, President and CEOGrant or award13,973$0.00—filing
2026-10-262026-10-224Vachris Roland MichaelDirector, President and CEOShares withheld for tax1,131$1,018.21$1.2Mfiling
2026-10-262026-10-224MILLERCHIP GARYExecutive Vice PresidentShares withheld for tax500$1,018.21$509.4Kfiling
2026-10-262026-10-224Wilderotter Mary AgnesDirectorGrant or award266$0.00—filing
2026-10-262026-10-224Vachris Roland MichaelDirector, President and CEOShares withheld for tax1,121$1,018.21$1.1Mfiling
2026-10-262026-10-224MILLERCHIP GARYExecutive Vice PresidentShares withheld for tax313$1,018.21$319.2Kfiling

Source: U.S. Securities and Exchange Commission, EDGAR

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COSTCO WHOLESALE CORP /NEW insider transactions — 38 filings on record — investment.com