JANA Partners reveals stakes in Zynga, Groupon

By Alistair Barr and Svea Herbst-Bayliss BOSTON (Reuters) - JANA Partners, a leading activist hedge fund firm run by Barry Rosenstein, has taken a liking to two of the most beaten-up technology stocks. JANA, which oversees more than $4 billion in U.S. stock holdings, disclosed stakes of 24.6 million Zynga Inc class A shares and 21.9 million Groupon Inc class A shares in regulatory filings on Wednesday. The positions represent just over 3 percent of the companies' outstanding shares. ...

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