Mealey's (December 10, 2015, 9:20 AM EST) -- LOS ANGELES — A federal judge in California on Dec. 8 granted final approval of a $15 million securities class action settlement, ruling that the settlement, plan of allocation and attorneys’ fees sought are reasonable (Mark Roberti v. OSI Systems Inc., et al., No. 13-9174, C.D. Calif.; 2015 U.S. Dist. LEXIS 164312)....