10 Stocks Moving In Monday's Pre-Market Session

Gainers

Bio Blast Pharma Ltd ORPN rose 5.17 percent to $2.85 in pre-market trading after surging 12.92 percent on Friday.

Hasbro, Inc. HAS shares rose 4.48 percent to $86.10 in pre-market trading after the company reported better-than-expected Q1 results.

Medivation Inc MDVN shares rose 3.38 percent to $52.90 in pre-market trading. AstraZeneca plc (ADR) AZN is said to have held internal talks regard a potential bid for Medivation, according to sources as reported by the UK's Sunday Times.

Synergy Pharmaceuticals Inc SGYP shares rose 3.08 percent to $3.35 in pre-market trading after gaining 5.18 percent on Friday.

Morgan Stanley MS rose 2.87 percent to $26.50 in pre-market trading after the bank reported stronger-than-expected Q1 earnings.

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Losers

Chiasma Inc CHMA shares fell 56.74 percent to $4.40 in pre-market trading after the company reported that it has received Complete Response Letter for its New Drug Application for Mycapssa.

Calumet Specialty Products Partners, L.P CLMT shares fell 44.79 percent to $5.67 in pre-market trading. Calumet Specialty Products reported preliminary Q1 results and reported the suspension in its quarterly cash distribution of $0.685 per unit. The company also priced a private placement of senior secured notes due 2021. Raymond James downgraded Calumet Specialty from Market Perform to Underperform.

Kite Pharma Inc KITE shares fell 6.28 percent to $46.99 in pre-market trading. Kite Pharma reported review of National Cancer Institute's manufacturing facilities.

ARM Holdings plc (ADR) ARMH shares fell 2.86 percent to $40.75 in pre-market trading. Jefferies downgraded ARM Holdings from Buy to Hold.

PTC Therapeutics, Inc. PTCT shares fell 2.47 percent to $8.70 in pre-market trading after gaining 43.18 percent on Friday.