Benzinga's Top Pre-Market Losers

Ariad Pharmaceuticals

shares fell 30% to $3.15 in the pre-market trading after the company announced discontinuation of the Phase 3 EPIC trial of Iclusig. Acacia Research

shares dropped 17.02% to $16.28 in pre-market trading after the company reported Q3 results. Stephens downgraded the stock from Overweight to Underweight. Knightsbridge Tankers

dipped 16.25% to $8.71 in the pre-market session after the company announced a public offering of common shares. Intuitive Surgical

dipped 8.55% to $365 after the company posted a 14% drop in its Q3 net income.