Check out the companies making headlines after the bell Wednesday:
Steelcase shares rose about 4 percent after the furnishing solutions provider posted second-quarter earnings.
Aircraft maker Boeing inched higher after it announced a deal to sell 300 airplanes to China's aviation industry. Boeing will increase production of its 737 aircraft to 52 a month in 2018 in order to meet demand. It expects China to be its largest commercial airplane market over the next 20 years.
Worthington Industries shares inched lower after the bell. Earlier, the metals processing provider declared a dividend of 19 cents a share, unchanged from the prior quarter.
Conatus Pharmaceuticals shares surged 43 percent after the small-cap drug maker released results from a study of its emricasan treatment.