Public Exits

Rosetta Stone Inc., an Arlington, Va.-based provider of language learning software, has filed for a $115 million IPO. It plans to trade on the NYSE under ticker symbol RST, with Morgan Stanley and William Blair & Co. serving as co-lead underwriters. Rosetta Stone was acquired in a 2006 management buyout by ABS Capital Partners (46.1 percent pre-IPO stake) and Norwest Equity Partners (30.1 percent).