Benzinga's Top #PreMarket Losers

fell 13.70 percent to $38.00 in pre-market trading after the company said it may not re-initiate enrollment in MVAD clinical trial in November as previously expected.

shares tumbled 5.25 percent to $25.45 in pre-market trading. JP Morgan downgraded JetBlue Airways from Overweight to Neutral and lowered the price target from $28.00 to $27.00.

shares declined 1.26 percent to $28.10 in pre-market trading after falling 2.13 percent on Monday.

shares fell 1.20 percent to $213.00 in pre-market trading after dipping 2.32 percent on Monday.

shares dipped 1.11 percent to $28.40 in pre-market trading after gaining 1.09 percent on Monday.