Check out which companies are making headlines after the bell Thursday:
Gap - The clothing retailer posted same-store sales that gained 7 percent in June, exceeding expectations for an increase of 4.7 percent, according to estimates from StreetAccount. Shares climbed in extended-hours trading.
(Read More: Dow, S&P End at Record Highs as Stocks Spike 1%)
Dell - Billionaire investor Carl Icahn is expected to announce a bid that will be "vastly superior" to Michael Dell's offer for the tech company on Friday morning, according to reports. Dell shares edged higher in extended-hours trading.