Mealey's (May 13, 2016, 11:38 AM EDT) -- SAN FRANCISCO — A federal judge in California on May 10 named an investor group as lead plaintiff in a securities class action lawsuit against Fitbit Inc. and certain of its executive officers, ruling that the investor group meets all statutory requirements for appointment as lead plaintiff (Brian H. Robb v. Fitbit Inc., et al., No. 16-0151, N.D. Calif.; 2016 U.S. Dist. LEXIS 62457)....