22 Stocks Moving In Tuesday's Pre-Market Session

Gainers

• Medigus Ltd. MDGS rose 12.3 percent to $2.28 in pre-market trading. Medigus reported Q2 operating loss of $1.3 million on sales of $82,000.
• Pacific Ethanol Inc PEIX rose 10.2 percent to $5.95 in pre-market trading after gaining 3.85 percent on Monday.
• Ubiquiti Networks Inc UBNT shares rose 8.7 percent to $55.00 in pre-market trading after falling 7.89 percent on Monday.
• Mirati Therapeutics, Inc. MRTX rose 7 percent to $11.55 in pre-market trading. Citigroup raised price target for Mirati Therapeutics from $8 to $16.
• Nabriva Therapeutics plc NBRV rose 7 percent to $9.49 in pre-market trading after jumping 29.30 percent on Monday. Nabriva Therapeutics announced a $80 million common stock offering.
• Bob Evans Farms Inc BOBE shares rose 5.6 percent to $77.01 in pre-market trading after Post Holdings Inc POST announced plans to purchase the company for $77 per share.
• AutoZone, Inc. AZO rose 4.7 percent to $590.00 in pre-market trading after the company reported stronger-than-expected earnings for its fourth quarter.
• Tata Motors Limited (ADR) TTM rose 4.4 percent to $33.22 in pre-market trading after gaining 1.74 percent on Monday.
• Adamas Pharmaceuticals Inc ADMS rose 4.2 percent to $22.00 in pre-market trading after falling 1.90 percent on Monday.
• Michael Kors Holdings Ltd KORS rose 3.1 percent to $46.00 in pre-market trading. Oppenheimer upgraded Michael Kors from Perform to Outperform.
• Mattel, Inc. MAT rose 2.8 percent to $15.29 in pre-market trading after falling 6.24 percent on Monday.
• Electro Scientific Industries, Inc. ESIO rose 2.8 percent to $14.17 in pre-market trading after surging 7.90 percent on Monday.

Find out what's going on in today's market and bring any questions you have to Benzinga's PreMarket Prep.

Losers

• Aldeyra Therapeutics Inc ALDX shares fell 14.8 percent to $7.75 in pre-market trading. Aldeyra Therapeutics reported proposed public offering of common stock.
• Mediwound Ltd MDWD fell 13.2 percent to $5.25 in pre-market trading. Mediwound priced its 4,400,000 offering of ordinary shares at $5 per share.
• Synchronoss Technologies, Inc. SNCR shares fell 11.7 percent to $14.80 in pre-market trading after Siris Capital disclosed that it is no longer interested in an all cash takeover of the company.
• McEwen Mining Inc MUX fell 8.6 percent to $2.22 in pre-market trading. McEwen Mining reported a bought-deal financing for $40.5 million.
• Sibanye Gold Ltd (ADR) SBGL fell 7.6 percent to $4.89 in pre-market trading after dropping 4.34 percent on Monday.
• Dimension Therapeutics Inc DMTX shares fell 6 percent to $5.55 in pre-market trading after climbing 40.48 percent on Monday. Citigroup downgraded Dimension Therapeutics from Neutral to Sell.
• Portola Pharmaceuticals Inc PTLA fell 4.6 percent to $53.95 in pre-market trading after rising 2.95percent on Monday.
• Cellectis SA (ADR) CLLS fell 3.3 percent to $27.45 in pre-market trading after dropping 1.73 percent on Monday.
• Under Armour Inc. UAA shares fell 3.2 percent to $16.82 in pre-market trading. Wells Fargo downgraded Under Armour from Market Perform to Underperform.
• Acuity Brands, Inc. AYI fell 2.3 percent to $164.00. Baird downgraded Acuity Brands from Outperform to Neutral.