Benzinga's Top Pre-Market Gainers

Osiris Therapeutics Inc (NASDAQ: OSIR) surged 16.02% to $7.53 in the pre-market session. OSIR received transitional pass-through status from the Center for Medicare & Medicaid Services for Grafix.

Digital Generation Inc (NASDAQ: DGIT) added 11.60% to $10.10 in the pre-market session. DGIT's PEG ratio is 0.84.

Expeditors International of Washington Inc (NASDAQ: EXPD) moved up 9.54% to $42.49 in the pre-market session. EXPD's trailing-twelve-month ROE is 18.82%.

Sierra Wireless Inc (NASDAQ: SWIR) soared 4.05% to $9 in the pre-market trading. SWIR shares have dropped 25.94% over the past 52 weeks, while the S&P 500 index has gained 1.36% in the same period.

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