Costco Wholesale Corp (COST) Ownership & Trading Activity

Institutional holders, insider transactions, and congressional trades for COST. 13F holdings as of 2026-06-30.

Top Institutional Holders

InstitutionSharesValueChange
Assenagon Asset Management670,304$627MINCREASED
Swedbank AB643,428$602MDECREASED
Emerald Advisors622,528$582MUNCHANGED
Provident Trust470,400$440MINCREASED
Robeco Institutional Asset Management B.V346,795$324MINCREASED

Recent Insider Trades

InsiderTypeSharesValueDate
Jeffrey S Raikes (Director)GIFT5,2492026-07-10
Kenneth D Denman (Director)SELL885$847K2026-06-23

Recent Congressional Trades

MemberTypeAmountDate
Dan Newhouse (Republican)PURCHASE$1,001 - $15,0002026-07-10

Full institutional holdings, insider history, and congressional trades for Costco Wholesale Corp on SentiSense.