Thank you, Chris. Good afternoon. Thank you all for joining the Intrexon fourth quarter 2015 earnings call. We certainly appreciate all of the support and interest from our investors. Earlier today we issued a press release with our fourth quarter and full year 2015 earnings and we filed our 10-K with the SEC. I hope that you have had the chance to review the reported financial results. As we have discussed in past calls and investor meetings with many of you, our goal is to attain a large portfolio of economic interests and products with significant potential across multiple industries, along with the commitment to do so in a capital-efficient manner. We're pleased to report to you that Intrexon's 700-plus employees delivered an outstanding performance in 2015 in support of that key tenant of our business model. And for the second consecutive fiscal year, we achieved our goals. We measure capital efficiency as the ratio of technology access fees, plus cost recovery revenues, plus product and service revenues, divided by total cash operating expenses. In 2015 this ratio equaled 133%. In other words, we took in greater than 1.3 times the cash we expended to operate our businesses as we continued to develop and expand the highly promising programs with our ECC and joint venture partners. We ended the year with 30 collaborations and I'm pleased with the progress being made toward commercialization across all of our programs. Within the health sector, our collaborators are currently utilizing Intrexon's suite of technologies in cellular and gene therapies against the broad set of diseases, including cancer, wet age related macular degeneration, diabetes, arthritis, rare diseases, metabolic disorders, or from skin conditions, infectious diseases, tissue repair, as well as synthetic biology mediated production of APIs or active pharmaceutical ingredients. Our immune-oncology program had a number of very important events during the year, namely our largest collaboration signed to date with the biopharmaceutical business of Merck KGaA, a cooperative research and development agreement with the National Cancer Institute, as well as our agreement with MD Anderson in conjunction with ZIOPHARM Oncology. With respect to our collaboration with Merck KGaA, we have advanced the first two CAR T cell targets of interest. The programs are on track and we are all pleased with the progress being made. During the fourth quarter we entered into a research collaboration to treat Type 2 diabetes with Janssen, a Johnson & Johnson company. Diabetes is one of the most pressing health problems we face today, afflicting more than 387 million people worldwide at a cost approaching $400 billion. This collaboration is utilizing our proprietary ActoBiotics oral delivery system for biological effectors, which we believe is well-suited to tackle an array of diseases. At this point, we signed three additional health collaborations using our ActoBiotics platform in 2015. The first was Oragenics, for diseases of the oral cavity, in addition, with Synthetic Biologics for metabolic disorder -- for the metabolic disorder phenylketonuria, and with ZIOPHARM for graft-versus-host disease. During the quarter we also announced a new ECC with Fibrocell to genetically engineer their fibroblast platform to treat chronic inflammatory and degenerative diseases of the joint, including arthritis. And these diseases collectively impact over 52 million people in the U.S. alone. We'll build on the synergy between the companies' technologies which together have generated an encouraging preclinical data into very -- two very difficult to treat indications, receptive dystrophic epidermolysis, or RDEB, and linear scleroderma. Fibrocell has reported that it expects to initiate a Phase I/II clinical trial for the treatment of RDEB in the second quarter of 2016 with their lead gene therapy drug candidate enabled by Intrexon's technology. We expect our joint venture with Sun Pharmaceuticals to file an IND this year for wet AMD, an estimated $6 billion market that continues to grow in size. Our novel approach to the treatment of wet AMD includes the use of our RheoSwitch platform and its ability to tune and control gene expression via an eye drop or oral pill. We're excited to get this patient-friendly solution into the clinic this year. Overall 2016 looks to be a breakout year for our health sector from a clinical perspective. In total and subject to FDA approval, we anticipate that up to seven INDs and clinical trial initiations with our existing ECC partners utilizing our technologies will take place in 2016. Many of these health sector products that will be entering the clinic are from collaborations that were signed in 2012 and 2013. We foresee the same scenario unfolding each year moving forward. So for example, our health collaborations assigned in 2013 and 2014 will likely enter the clinic in 2017 and so on. In this manner and in conjunction with our partners, we expect to have one of the broadest gene and cell therapy clinical portfolios. Importantly for our shareholders, this will be achieved under the capital efficient framework that I mentioned earlier. In the food sector, two of our subsidiaries received landmark approval from 2015. The FDA approved AquaAdvantage Salmon and the USDA approved Okanagan's Arctic apple. Okanagan will market the world's first non-browning apple without the use of any flavor-altering chemical additives. We believe we are well-positioned to have a competitive product in the healthy snacks segment, and in particular we're focused on the fresh cut apple slices market which has significant growth potential within the multi-billion-dollar apple industry. Okanagan expects to plant about 75,000 Arctic apple trees in 2016 and plans are underway for planting a considerably larger number moving forward. The small fruit volumes that will be harvested in 2016 will be used for test markets and for consumer research as we gear up for commercial introduction in 2017. In the energy sector, we made significant progress in 2015 with our methanotroph bioconversion platform and our first commercial target isobutanol. During the year we increased the output of our isobutanol in our methanotrophs by roughly 40-fold. And since just our Investor Day in November, our isobutanol production has increased by more than 50%. In 2016 we expect to achieve the yield necessary to begin site selection for our first commercial plant with Dominion, our exclusive partner for production facilities in the Marcellus and Utica shale basins. We remain on target for commercialization of this valuable biofuel in 2018. We believe we will be the first company to biologically manufacture isobutanol at a cost, allowing it to be used as a replacement of gasoline. This puts us in a unique position given the number of advantages isobutanol has over other gasoline biofuel blend stocks. Specifically, isobutanol is clean at burning, less corrosive, has more energy content and compatibility with existing pipelines. You can expect further updates on our progress over the next few months. Our proprietary methanotroph bioconversion platform also has the potential to create significant -- a significant number of additional products. And during the fourth quarter we announced a new joint venture to produce our second commercial product which is 1,4-butanediol, otherwise known as BDO. BDO, which has a market value of over $5 billion, is used to manufacture spandex, polyurethane plastics, a number of other products including polyester. Also of note, last month, the Harvest Intrexon Enterprise Fund announced that it had raised $245 million. This fund is dedicated to investment in the inventions and discoveries of Intrexon. During the fourth quarter we announced our first ECC with a startup, Thrive Agrobiotics, that was backed by the fund. And we expect many more opportunities to be presented to and completed with Harvest Intrexon Enterprise Fund in the coming months. Now I would like to take a moment to discuss our subsidiary Oxitec, a company that has pioneered a targeted and innovative approach to control mosquitoes that spread disease, as well as for the control of agricultural pests that damage crops. It's a fantastic example of how broad the engineering of biology can be. This single solution impacts three of Intrexon's sectors: health, food and the environment. Oxitec's lead vector control program is centered on the dangerous Aedis aegypti mosquito, an invasive species in almost all of the 120 plus countries that it inhabits. This mosquito is the principal vector for transmitting a number of difficult diseases, namely Zika virus, dengue and chikungunya. And it is estimated that over 40% of the world's population is at risk for these infections from this mosquito. As noted in our press release earlier today, we are currently engaging with agencies of numerous governments and non-governmental organizations concerning the use of Oxitec solution to reduce or eradicate populations of this dangerous insect. A few points that we'd like to emphasize at this time regarding Oxitec. One, we believe we have the only proven scalable vector control solution for Aedis aegyti that is ready and available today. We have existing production facilities in the U.K. and in Brazil and plans are well underway for an additional larger facility in Brazil. This new factory alone will be able to produce 60 million Oxitec male mosquitoes per week. To give everyone an idea of how scalable our solution is, here's the easy math. Within five months, it is possible to generate an army of roughly 3 billion male mosquitoes from a single female mosquito. These male mosquitoes would have our self-limiting gene programming installed from the outset to reduce the wild populations of Aedis aegypti mosquito. As a reminder, only female mosquitoes bite and transmit disease. Third, Oxitec has been working with the Aedis aegypti mosquito for over 14 years, and since 2009 has been extensively testing their product in outdoor trials in urban environments. Fourth, there are over 100 peer-reviewed publications on Oxitec's technology and platform. In addition, Oxitec has completed five separate efficacy trials across three countries. Lastly, in April 2015, Oxitec began deploying its vector controlled solution in Piracicaba, Brazil. And within six months, the Aedis aegypti larvae population was reduced by over 80%. As reported in the local press in Brazil, the District of Piracicaba, in which our solution was deployed, went from having the highest number of cases of dengue in the municipality to one of the lowest, from 133 cases of dengue to just 1 after the so-called friendly Aedis aegypti started. As stated in our press release today, in 2016, we expect to partner some of our mature-stage assets with companies that add real value toward their maximized commercial realizations. Today we have a number of discussions involving each of [ph] Trans Ova, Okanagan, AquaBounty and Oxitec. So I encourage you to stay tuned as 2016 unfolds. A few closing comments on our financials. During the fourth quarter our revenue totaled $41.5 million and for the full year totaled $173.6 million, increases of 34% and 141%, respectively, year over year. In 2015 we collected $106.6 million of technology access fees and $56.5 million in cost recovery from our revenue -- from our ECC partners, bringing our total deal money in 2015 to roughly $162 million. These inflows have continued to grow year over year and are expected to do so again in 2016, allowing us to reinvest in our people, technologies and operations. Our total deal money since inception now exceeds $360 million and we currently have over $700 million in potential milestones in our pipeline and significant backend economics via royalties and profit splits that in the aggregate we believe are quite substantial. With 30 collaborations, approximately $340 million of cash and equivalents, equity securities with a market value of approximately $85 million, and a portfolio of operating subsidiaries with outstanding management teams and business prospects, we exited 2015 with significant momentum and find ourselves in a very strong position to execute our strategies in 2016 and beyond. With that, we'll open the call for questions. Operator?