Please note that some of the information presented here today may contain projections or other forward-looking statements regarding future events or the future financial performance of the company. These statements are based on management's current expectations and the actual events or results may differ materially and adversely from these expectations for a variety of reasons. We refer you to the documents the company files from time to time with the Securities and Exchange Commission, specifically the company's annual report on Form 10-K, its quarterly reports on Form 10-Q and its current report on Form 8-K. These documents identify important risk factors that could cause the actual results to differ materially from those contained in our projections or forward-looking statements.
With that, I'll now turn the call over to Pete.
Thank you, Rebecca. To begin, I would like to provide highlights of our fourth quarter and full year results before introducing the company's strategic directives for fiscal 2012. I am pleased to report that fourth quarter revenues increased 14% year-over-year to a record $107.4 million. Fiscal 2011 revenues grew 11% to $402.1 million as compared to $362.6 million in the last fiscal year. These financial results contributed to a record of consistently delivering annual double-digit revenue growth now for the 12th consecutive year.Additionally, Myriad's full year profitability increased to an impressive 17% year-over-year with operating income of $157.8 million. These strong results have positioned us well for continued success, particularly when combined with the strategic investments we are making for future growth. We continue to increase investments in our research and development programs in an effort to discover and develop exciting new products and also to enhance the clinical support for our current product portfolio. In addition, we have been strategically deploying capital with the in-licensing of novel technologies from Chronix Biomedical and the Melanoma Diagnostics and the acquisition of Rules-Based Medicine in addition to repurchasing over $200 million of our stock this year.