Costco stock barely moves after-hours as insider sale hits the tape ahead of key dates
New York, Jan 13, 2026, 18:54 EST — After-hours Shares of Costco Wholesale Corp (COST.O) dipped modestly on Tuesday, holding steady in after-hours trading as investors digested news of a recent insider sale amid the busy earnings season. This filing matters because Costco is seen as a reliable consumer play, and even minor signals—like insider trades, foot traffic data, or membership growth—can sway the stock amid broader market turbulence. Rate-sensitive shares are also jittery, reacting strongly to inflation figures and changing Fed policy bets. Costco faces a packed schedule in the coming weeks. The company’s shareholder meeting is slated for