18 Stocks Moving In Wednesday's Pre-Market Session

Gainers

• Proteostasis Therapeutics, Inc. PTI shares rose 14.6 percent to $5.10 in pre-market trading after the company disclosed that it has received the FDA Fast Track designation for triple combination program in patients with cystic fibrosis.
• Astrotech Corporation ASTC rose 23.4 percent to $2.85 in pre-market trading after the company disclosed that its subsidiary, 1st Detect announced that the Tracer 1000 has begun testing for passenger screening at airports.
• Pacific Ethanol, Inc. PEIX rose 15.2 percent to $3.40 in pre-market trading after falling 1.67 percent on Tuesday.
• CASI Pharmaceuticals, Inc. CASI rose 8.6 percent to $6.84 in pre-market trading after rising 47.54 percent on Tuesday.
• Ambarella, Inc. AMBA rose 8.4 percent to $50.93 in pre-market trading.
• Triangle Capital Corporation TCAP rose 7.6 percent to $11.81 in pre-market trading after the company announced the sale of investment portfolio for $981.2 million in cash along with a simultaneous externalization transaction.

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Losers

• Cloudera, Inc. CLDR fell 29.9 percent to $15.60 in pre-market trading. Cloudera reported stronger-than-expected results for its fourth quarter, but issued weak sales forecast for the current fiscal year.
• RMG Networks Holding Corporation RMGN fell 11.7 percent to $1.28 in pre-market trading after the company agreed to be acquired by SCG Digital for $1.27 per share.
• Tandem Diabetes Care, Inc. TNDM shares fell 11.4 percent to $4.57 in pre-market trading after gaining 5.31 percent on Tuesday.
• Golden Ocean Group Limited GOGL fell 9.8 percent to $6.94 in pre-market trading.
• SELLAS Life Sciences Group, Inc. SLS fell 9.1 percent to $8.16 in pre-market trading after gaining 3.70 percent on Tuesday.
• Longfin Corp. LFIN shares fell 9 percent to $9.00 in pre-market trading after dipping 30.89 percent on Tuesday.
• Cellectis S.A. CLLS fell 8.9 percent to $35.10 in pre-market trading after the company disclosed a $175 million follow-on ADS offering.
• Avon Products, Inc. AVP shares fell 8.6 percent to $2.56 in pre-market trading after rising 3.70 percent on Tuesday.
• Dave & Buster's Entertainment, Inc. PLAY fell 8.4 percent to $37.26 in pre-market trading. Dave & Buster's reported upbeat earnings for its fourth quarter, while sales missed estimates. Its same-store-sales declined 5.9 percent.
• SMART Global Holdings, Inc. SGH shares fell 8.3 percent to $45.81 in pre-market trading after dropping 1.83 percent on Tuesday.
• Marinus Pharmaceuticals, Inc. MRNS fell 6.5 percent to $3.60.
• CarMax Inc. KMX fell 6.5 percent to $56.05 in pre-market trading after reporting Q4 results.