Check out which companies are making headlines after the bell Thursday:
Zynga - The social-game developer said it had appointed former Best Buy executive David Lee as its chief financial officer to replace Mark Vranesh, who is leaving the company. Shares rose in after-hours trading.
H&R Block - The provider of tax-preparation services said in a statement that it had reached a definitive agreement to divest its bank. Shares jumped in after-hours trading.