Check out the companies making headlines after the bell Thursday:
Gap shares fell in extended trading after the retailer reported that its same-store sales were down 6 percent in March versus a 2 percent increase last year. While comparable sales improved year-over-year for the Gap and Old Navy brands, Banana Republic reported a 14 percent drop in same-store sales, versus a 3 percent decrease last year.
The company also said that it is entering April with "more inventory than planned" which it expects will pressure its gross margins for the first quarter.
Barnes & Noble shares rose after the company announced a partnership with global software products and services company Bahwan CyberTek, which will take over cloud management and development support for NOOK software. Barnes & Noble expects the partnership to create $13 million in annualized cash savings.
Abiomed shares popped after the company announced that it had received FDA approval for its heart pumps, which provide treatment of ongoing cardiogenic shock after heart attack or heart surgery.
Shares of WD-40 Company were higher after the company reported a beat on earnings and raised its full-year guidance. For its second quarter, the company reported diluted earnings of 94 cents per share beating analyst estimates of 86 cents per share.
Ruby Tuesday shares dropped after an earnings miss on the top and bottom line. The company also announced that its CFO had resigned to move on to another company.
— CNBC's Tae Kim contributed to this report.