Benzinga's Top #PreMarket Losers

MannKind Corp. MNKD shares dropped 7.83% to $6.12 in pre-market. Goldman Sachs downgraded MannKind from Neutral to Sell and lowered the price target from $6.00 to $3.00. Tarena International, Inc. TEDU fell 6.17% to $10.80 in pre-market trading. Tarena International reported Q4 earnings of $0.15 per share on revenue of $27.8 million and issued a weak revenue outlook. Caesars Entertainment CorporationCZR shares declined 4.81% to $10.49 in pre-market trading after the company reported fourth quarter financial results and missed expectations. Micron Technology, Inc. MU shares fell 2.69% to $30.40 in pre-market trading. Nomura downgraded Micron Technology from Buy to Neutral and lowered the price target from $40.00 to $30.00. Arena Pharmaceuticals, Inc.ARNA shares dropped 1.87% to $4.20 in pre-market trading after the company reported downbeat financial results for the fourth quarter.