10 Stocks Moving In Monday's Pre-Market Session

Gainers

Alere Inc ALR shares rose 13.98 percent to $42.40 in pre-market trading as Abbott Laboratories ABT announced plans to acquire Alere for $56 per share.

Ascent Solar Technologies, Inc. ASTI shares rose 97.18 percent to $0.1400 in pre-market trading as the company reported a 90 percent rise in Q4 revenue to $2.4 million.

Mast Therapeutics Inc MSTX shares rose 11.22 percent to $0.46 in pre-market trading after the company reported positive top-line results from a blinded Phase 2a study of AIR001 for the treatment of heart failure with preserved ejection fraction.

AMAYA INC AYA shares rose 26.89 percent to $13.40 in the pre-market trading session after the company’s CEO David Baazov announced intention to acquire Amaya for C$21 per share.

Questar Corporation STR shares rose 20.60 percent to $24.59 in pre-market trading after Dominion Resources, Inc. D agreed to buy Questar for around $4.4 billion.

Twitter Inc TWTR shares rose 8.04 percent to $18.15 in pre-market trading after The Information reported that it is "hard to overstate how important the next 10 days are" for the "Silicon Valley sensation turned soap opera company." According to The Information, several of the high profile executives who quit their job at Twitter recently did so due to their "falling confidence in the company" and "any way you slice this, these departures are negatives for the company." Meanwhile, influential investor Marc Andreessen and Silver Lake have "have considered some sort of deal."

Losers

GoPro Inc GPRO shares fell 4.28 percent to $10.96 in pre-market trading. Piper Jaffray reiterated an Underweight rating on GoPro and lowered the price target from $9 to $7.50.

Tesla Motors Inc TSLA shares fell 2.77 percent to $185.90 in the pre-market trading after gaining 0.79 percent on Friday.

Groupon Inc GRPN shares fell 2.21 percent to $2.66 in pre-market trading after rising 1.12 percent on Friday.

Exxon Mobil Corporation XOM shares fell 1.48 percent to $76.70 in pre-market trading after gaining 0.75 percent on Friday.