Benzinga’s Top Pre-Market Losers (CVLT, AMED, SQNM, ATPG)

CommVault Systems CVLT tumbled 24.80% to $17.65 in the pre-market session. CVLT’s preliminary Q1 earnings call is scheduled for today . Amedisys Inc AMED fell 13.51% to $30.29 in the pre-market session. AMED had yesterday forecast its second-quarter profit short of expectations. Sequenom, Inc SQNM slipped 6.02% to $5.31 in pre-market trading. SQNM’s shares lost 9.16% to close at $5.65 yesterday on heavy volume of 9,661,608 shares. ATP Oil & Gas Corporation ATPG slipped 5.66% to $9.84 in pre-market trading. ATPG was downgraded by JP Morgan from “neutral” to “underweight” today. Read more from Benzinga's Markets.