Good morning. I’d like to begin by providing a summary of our second quarter results before commenting on our business prospects. We reported revenue of $339.6 million in the second quarter of 2015, a 5.7% increase over the previous year in constant dollars, and a 6% sequential increase. Having anniversaried the acquisition of Argenta and BioFocus in the first quarter, acquisitions contributed just 1.5% to year-over-year revenue growth. Many of our businesses performed extremely well with the strongest performance contributed by safety assessment. We are particularly pleased that the research models business improved due in part to robust sales to NCI researchers and also to stabilization in Europe. The operating margin improved by 100 basis points year-over-year to 20%. This is the highest operating margin we achieved since 2008, and the first time that we have reached our 20% margin target. All three business segments reported increased operating margins, but the most significant increase was in the DSA segment, which gained 450 basis points year-over-year. Each of the segments reported a sequential increase in operating margins driven by either higher revenue, or improved operating efficiency, or both. Earnings per share were $0.96 in the second quarter, including a $0.01 loss from our limited partnership investment. This compared to $0.97 in the second quarter of last year, which included a $0.03 gain for limited partnership investments. In addition foreign exchange reduced earnings per share for the second quarter of this year by approximately $0.03. The second quarter results demonstrate the effective execution of our sales and marketing strategies. We are continuing with our outreach to heads of R&D and other decision-makers at the leading biopharmaceutical companies as well as many of the larger biotech companies. The addition of discovery assets to our early stage drug research portfolio has allowed us to expand discussions with existing clients about playing a larger role in the research efforts and is opened an avenue for discussion with potential new client. We have fundamentally changed the conversation because we can now support the entire early stage drug research process. The addition of Celsis provides another area of discussion because we can now offer a unique comprehensive solution for rapid quality control testing of biopharmaceutical and consumer products. I’d like to provide you with details on the second quarter segment performance. Beginning with the RMS segment, revenue is $120 million, a decline of 2.5% in constant currency. As was the case in the first quarter, higher revenue from product sales was offset by lower service revenue. Sales of research models in North America increased significantly due primarily to sales of NCI models which as you know, are now recorded as product sales instead of services, following the termination of the NCI contract last fall. Sales of research models in China increased in the second quarter, and we were very pleased to see stabilization of sales in Europe and moderation of decline in Japan. The increasing demand for MRAD and immuno models which we experienced last year in the first quarter continued in the second quarter in the U.S., and we also saw improved demand for these strains in Europe. We believe the trend is being driven primarily by oncology research where positive results from immunotherapies are driving increased investment. As a expected, revenue for research model services declined in the second quarter, as a result of the loss of the NCI contract and softer sales for the GEMS business. Both the NCI contract and the significant colony reduction by one – GEMS client which we mentioned previously, will anniversary in the second half of this year, which will result in stabilization of the service revenue. In the second quarter the RMS operating margin increase by 10 basis points to 29.1%. Despite slightly lower sales, the consolidation of our facilities in Japan and other efficiency initiatives in both the products and services businesses generated a benefited in the second quarter. Sequential operating margin increased, demonstrated the benefits of the efficiency initiatives even more clearly, improving 280 basis points over the first quarter. We are continuing to identify opportunities to streamline our RMS operation, and we maintain our belief that an annual RMS operation margin in the high 25% range is achievable and sustainable. The manufacturing support segment reported revenue of $66.2 million which represented a growth rate of 9.8% in constant currency. The EMD business again delivered robust growth of approximately 10%, and the biologics business improved significantly from its slow start to the year. Biologics normally has a soft first quarter, as a result of low sample volume following the holidays but generally improves in the second quarter as it did this year. The Avian Vaccine business also had a strong second quarter due in part to the acquisition of a small competitor which we made on May 5. Because of capacity constraints, we have been unable to fulfill the demands for the high quality eggs which we produce. Rather than build, we purchased Sunrise Farms to provide additional capacity. The acquisition adds less than 50 basis points of Charles River 2015 consolidated revenue, but enables us to better meet our clients requirements. Manufacturing segment operating margin improved by 20 basis points year-over-year to 33.6%. As we expected, the sequential improvement with significant, a 370 basis point gain, which was driven by all three businesses. Leverage from higher sales is significant for our EMD and Avian product businesses, and efficiency initiatives particularly for our biologics business also contributed. The second quarter saw the margin return to the low 30% range which we consider to be a sustainable level. As you know, we closed the acquisition of Celsis last Friday. We are very enthusiastic about this acquisition, which will expand the portfolio of our Endotoxin and microbial detection for EMD business. EMD is the leading of Endotoxin testing for sterile biopharma application, and through the PTS office the only rapid testing platform. Celsis is a leading provider of rapid testing systems for bacterial contamination or bioburden in non-sterile products making it an excellent fit with our existing EMD business. Together, we believe EMD and Celsis will provide one of the most, if not the most, comprehensive solution for rapid quality control testing available, not only to the biopharmaceutical industry, which is our primary focus, but also to the consumer products industry. As a result, the acquisition expands our addressable market opportunities to approximately $2 billion, almost twice the current level. We believe this acquisition has compelling financial benefits. We expect Celsis to deliver low-double digit revenue growth with an operating margin comparable to EMD. From a longer-term perspective, we believe that our ability to provide a total microbial testing solution to our clients will be a key driver of our goal for the EMD business to continue to deliver low-double digit organic revenue growth for the foreseeable future. DSA revenue was $153.4 million in the second quarter, an 11.4% increase in constant currency including a 2.8% from the ChanTest acquisition. Because of our sustained focus on improving the efficiency and productivity of the DSA business, the low-double digit revenue growth yielded a significant increase in operating margins to 21.6% from 17.1% in the second quarter last year. The safety assessment business exceeded our segment goal of a 20% operating margin and was the primary driver of the DSA segment’s 450 basis points operating margin improvement from the second quarter of last year, as well as the 180 basis points sequential improvement. DSA segment exceeded our 20% operating margin goal. Although I remind you that margin improvement varies based upon a number of factors and should be evaluated on an annual rather than a quarterly basis. Excluding ChanTest the discovery business had a mixed quarter, with softer sales for Argenta and BioFocus, partially offset by stronger in vivo discovery results. Revenue for Argenta and BioFocus was affected primarily by the early termination of a large contract for integrated chemistry program. This occurred due to a re-prioritization of the client’s R&D programs. We’re holding ongoing discussions with numerous biopharma clients and potential clients about playing a larger role in their research efforts, and are optimistic that many of these companies will choose to outsource their integrated chemistry programs to us, however, the decision process is lengthy. Ultimately, we believe that outsourcing of early discovery services will increase and gain momentum just as outsourcing of safety assessment services has. Our second quarter results of the safety assessment business demonstrates this outsourcing momentum and our success at winning market share. We were exceptionally pleased to see the business report another quarter of low-double digit revenue growth over the prior-year quarter and a similar sequential increase. The revenue growth resulted from improved client demand, a 5% increase in pricing and market share gains. Biotech clients were the primary driver of the revenue increased as they continue to benefit from robust funding and invest those funds in their pipelines. Global by a farmer and academic clients also contributed. The years of efforts we made to improve our operating efficiency while continuing to invest in our scientific expertise enhance our sales efforts, and build stronger relationships with existing and potential clients are paying off now, when the safety assessment market is returning to a growth mode. We have differentiated ourselves with the competition, and clients appreciate the value we bring to their research efforts and the efforts which we place on individualized service. The fact that AstraZeneca recently renewed his agreement with us for an additional five years is a prime example of the strategic relationships we want to achieve our clients. Under the agreement which extends into 2020, Charles River will retain its position as AZ’s preferred strategic partner for outsourced regulated safety assessment and development DMPK. Utilizing our scientific expertise has been pivotal to enabling AZ to create a simplified and more flexible research platform, and our combined expertise as provided substantial benefits in support of AZ’s efforts to deliver safe and effective new treatments to patients more efficiently. We are proud of the success of our collaboration and look forward to providing ongoing support for AZ’s early stage research programs. Our success at expanding strategic relationship like AZ and winning market share has resulted in a high utilization rate for our safety assessment facilities. As we mentioned previously, we have been able to accommodate increased demand over the last two years by opening small numbers of study rooms. This has been a successful approach, but as capacity utilization has increased to optimal levels, we have less flexibility to address our clients’ demand for our services. To provide the needed capacity, we have made a decision to reopen our facility at Shrewsbury, Massachusetts, in early 2016. Initially, we expect to open a portion of Charles River Massachusetts, as the facility will be known, and offer only Validation and staffing for GLP services will follow at a later date, depending on demand. We have already received considerable indications of interest from large biopharma and emerging biotech companies, as well as academic research institution. Situated less than an hour from the Boston, Cambridge, bio hub, perhaps the most significant concentration of medical research in the world, we believe that the facility is strategically located to support the demand for outsourced services and to accommodate hands-on research organizations which want to be closely involved with the CRO partner. Reopening Charles River Massachusetts will provide us with flexibility to accommodate demand for discovery and safety assessment services. We believe that capacity and flexibility are especially important now when there is a significant opportunity to gain market share. Large biopharma companies are making a more significant commitment to outsourcing as they strive to improve operating efficiency and increase pipeline productivity. That commitment extends not only to CROs but also to biotech companies in academia. Small and emerging biotech companies, flush with funding from large biopharma, private equity and the capital markets, are investing in research rather than infrastructure. Academic institutions are increasing their reliance on partners like Charles River to provide expertise in drugs discovery and development. A far cry from 2008, the outsourcing landscape has changed significantly, offering us many opportunities to work collaboratively with our clients. This is the reason that we continue to invest in portfolio expansion, scientific expertise, efficiency initiatives, and our people. These investments are the basis of our ability to provide a compelling value proposition for our clients. We intend to continue to identify and acquire businesses and technologies primarily upstream, but also for other growth areas of our business. Such additions will enhance the role we play in supporting our clients’ early stage drug research processes, by providing critical capabilities and expertise which they do not have in-house, or which enable them to eliminate the internal investment. We believe that continued successful execution of our strategies will enable us to maintain and enhance our position as the leading pure play, early stage CRO, and allow Charles River to provide value to clients, employees, and shareholders for the long term. In conclusion, I would like to thank our employees for their exceptional work and commitment and our shareholders for their support. Now, I would like Tom Ackerman to give you additional details on our second quarter results.