Costco stock today: COST at $862 as New Year’s Day shuts markets; SEC insider sale filing in focus
Costco shares closed down 0.4% at $862.34 in the final 2025 session. SEC filings show Executive Vice President Javier Polit sold over 2,600 shares on Dec. 29 and 30 for about $2.26 million, leaving him with 10,189 shares. Investors await Costco’s December sales report on Jan. 7 and key U.S. jobs and inflation data next week.