The March 2011 Dechert Survey of Securities Fraud Class Actions Brought Against Life Sciences Companies, released on March 31, counted 29 new cases in 2010 compared with 19 in 2009 and 23 in 2008. According to previous Dechert surveys, 25 new securities class actions cases were filed against life sciences companies in 2007 and 16 in 2006.

Last year’s class actions against life sciences companies represented 16% of the 176 securities fraud class action lawsuits filed in 2010. That’s at the top of the range during the previous five years: The percentage was also 16% in 2005, and it was 10% in both 2008 and 2009.