Benzinga's Top Pre-Market Losers

Geron

shares dropped 18.92% to $1.20 in pre-market trading. Geron announced its plans to end development of GRN1005, an experimental brain cancer drug. It also announced its plans to cut 43 jobs Vail Resorts

shares fell 7.79% to $51.49 in the pre-market trading. Vail Resorts reported a wider first-quarter loss. MetroPCS Communications

dipped 7.15% to $10.00 in the pre-market session. According to Reuters, Sprint Nextel

is not likely to make a counteroffer for MetroPCS. Pep Boys-Manny Moe & Jack

dipped 6.37% to $10.00 in the pre-market session. Pep Boys posted a loss in the fiscal third quarter.