Take a look at some of Monday midday movers:
Regeneron rallied sharply after the biotechnology firm said that Sanofi will boost its stake via stock purchases in the open market.
Fossil gained ahead of its quarterly earnings report expected Tuesday. Analysts expect the company to post earnings per share of $2.26 on revenue of $930 million. Benchmark Capital cut the fashion accessories company to "hold" from "buy" ahead of the report, citing lack of upside catalysts.
Baker Hughes, Basic Energy Services, Newpark Resources and other North America oil service stocks were downgraded to "hold" from "buy" in a sector call from Dahlman Rose.
Genworth Financial rose following a report that said the firm is in talks to sell its wealth management and alternative investment business for $400 to $500 million. The analyst at Sandler O'Neill said an approximately $450 million price tag for the business would not be "unreasonable."
Diamond Foods popped on heavy volume, amid reports suggesting that a short squeeze might be a factor.
Kroger hit a 52-week high after an upgrade from Goldman Sachs to "neutral" from "sell".
Sony Pictures Entertainment and Starz inked a deal extending their agreement giving Starz exclusive rights to Sony Pictures' movies through 2012. Meanwhile, shares of competitor Netflix fell following the news.
—By CNBC's Lori Spechler
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