Check out which companies are making headlines after the bell Tuesday:
Cisco (CSCO) - The networking equipment company earned 48 cents a share, excluding one-time items, on sales of $11.88 billion, topping expectations for 46 cents a share on revenue of $11.77 billion. Shares jumped in extended-hours trading. (Click here for after-hours quote.)
(Read More: Stocks End at 3-1/2 Month Lows, Led by Techs)
Zynga (ZNGA) - The social gaming company announced that chief accounting officer Mark Vranesh has been appointed as CFO. Vranesh succeeds David Wehner, who is leaving the company to pursue a senior position at Facebook (FB). In addition, the company reaffirmed its 2012 outlook. Shares were unchanged in extended-hours trading. (Click here for after-hours quotes.)
Mosaic (MOS) - The fertilizer company lowered its sales volume guidance for the next quarter, citing weak international crop nutrient market demand. Shares tumbled in extended-hours trading. Shares of rival Potash (POT) also slipped in extended-hours trading. (Click here for after-hours quotes.)
Ubiquiti Networks (UBNT) - The wireless products maker announced its CFO John Ritchie has resigned. The company has started a search for a new CFO. Shares slid in extended-hours trading. (Click here for after-hours quote.)
MAKO Surgical (MAKO) - The medical device company said it will offer shares of its common stock in a public offering through Piper Jaffray, but size of the offering was not disclosed. Shares tumbled in extended-hours trading. (Click here for after-hours quote.)
(Read More: CNBC's Market Insider Blog)
-By CNBC's JeeYeon Park (Follow JeeYeon on Twitter: @JeeYeonParkCNBC)
Questions? Comments? Email us at marketinsider@cnbc.com
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