GenMark Diagnostics, Inc. (Nasdaq:GNMK), a leading provider of automated, multiplex molecular diagnostic testing systems, today reported financial results for the fourth quarter and year ended December 31, 2012. Revenues for the quarter ended December 31, 2012 were $9.4 million compared with $2.0 million during the fourth quarter of 2011. The 364% year-over-year increase in quarterly total revenue reflects an increase in the number of systems in the field, growth in test menu and a significant increase in the number of tests sold. Reagent revenues for the fourth quarter grew 404% year-over-year to $9.1 million from $1.8 million. Instrument and other revenues increased by 39% year-over-year to $312,000 from $224,000 due mainly to capital sales of instruments. The Company placed a net of 42 analyzers during the quarter, bringing the installed base to 297 at year end, all in end-user laboratories within the U.S. market. “Boosted by a more severe than usual flu season, the continued expansion of our installed base and annuity per system enabled our commercial team to close out 2012 with another very robust quarter. This year we will continue to leverage the significant runway still available for our current XT-8 system to maintain this performance trajectory,” commented Hany Massarany, GenMark’s President and CEO. “We will also continue to focus our R&D organization on completing the development of our NexGen multiplex sample-to-answer system,” Mr. Massarany further stated. Gross profit for the quarter ending December 31, 2012 was $4.7 million, or 50% of sales, compared with a gross profit of $0.4 million, or 20% of sales, for the same period in 2011. Operating expenses increased $3.5 million to $9.3 million during the fourth quarter of 2012 compared with the fourth quarter of 2011. The increase in operating expenses was across all areas of the Company and reflected higher volumes, increased headcount, infrastructure spending, and product research and development costs.