Benzinga's Top #PreMarket Losers

Synta Pharmaceuticals SNTA shares dropped 21.40% to $4.15 in pre-market trading after gaining 4.35% on Tuesday. Stifel Nicolaus downgraded the stock from Hold to Sell. Zogenix ZGNX shares fell 17.40% to $3.75 in the pre-market trading after jumping 11.82% on Tuesday. China Techfaith Wireless Communication Technology CNTF dipped 12.41% to $2.40 in the pre-market session after the company reported Q4 results. MagnaChip Semiconductor MX dipped 9.35% to $12.99 after the company reported non-reliance on previously-issued financial statements and withdrew its outlook for the fourth quarter.