Thank you, George. Good morning, everyone. Starting with our results on Slide 7, assets under management. At March 31st, assets under management were $154.8 billion, up 4% from $149.4 billion at December 31st. The sequential change reflected $7.8 billion of market appreciation and $1.9 billion of net outflows. Ending assets under management were 2% higher than average assets under management of $152.4 billion, which increased 3% due to market performance. AlphaSimplex AUM at March 31st was $7.8 billion, a decline from February 28th due to market performance, which was in-line with expectations for their type of strategies. That was partially offset by positive net flows, both for the month and for the quarter. Our assets under management are well-diversified by asset class and product type. At March 31st, equity was 57%, fixed-income and multi-asset strategies combined were 37% and alternatives were 7% of AUM. By product type, institutional represented 34% of total AUM, with US retail funds and retail separate accounts at 32% and 24% respectively. Giving effect to the AlphaSimplex transaction, our pro-forma total assets under management are $162.6 billion, with institutional assets increasing to 36% of AUM and alternative strategies increasing to 11%, which is a meaningful change from the 3% prior to the addition of AlphaSimplex and Westchester Capital. We continue to have compelling long-term relative investment performance across products and strategies. At March 31st, approximately 43% of rated fund assets had four or five stars and 87% were in three, four or five-star funds. We had seven funds with AUM of $1 billion or more and 30 funds in total that were rated four or five stars. On a five-year basis, 74% of our rated fund AUM was outperforming the median performance of their peer groups. In addition to strong fund performance as of March 31st, 88% of retail separate account assets and 64% of institutional assets were outperforming their benchmarks over five years. I would also note that our managers performed well during the volatile first quarter with 55%, 89% and 60% of mutual fund retail separate accounts and institutional AUM respectively, beating benchmarks for the period. Turning to Slide 8, asset flows. Total sales were $6.2 billion, down from $7.3 billion last quarter. The decline was due to higher institutional sales in the prior quarter, which included a large funding and a growth equity mandate and a $300 million CLO issuance, partially offset by higher retail separate account sales. By product fund sales of $3 billion were essentially flat as higher sales of equity strategies which were up 44% were offset by lower fixed-income and alternative sales. Retail separate account sales of $1.4 billion increased 12%, largely driven by SMID-cap equity strategies. Institutional sales were $1.9 million, down from $3 billion in the fourth quarter, that included the large funding and CLO issuance. Institutional sales continued to be well-diversified across affiliates, strategies and geographies and in the first quarter, our 10 largest institutional net inflows represented four different affiliate managers and several non-US clients. Total net outflows were $1.9 billion, with the improvement from $3.4 billion of net outflows in the prior quarter, largely due to open-end funds. Reviewing by product for open-end funds, the improvement we saw early in the quarter reversed in March though net outflows of $1.8 billion improved significantly from $3.8 billion in the fourth quarter. Almost all strategies had an improvement in net flows and there were positive net flows in SMID-cap, emerging markets and large-cap equities. In retail separate accounts, positive net flows of $0.1 billion, compared with net outflows of $0.4 billion in the fourth quarter and were due to continued positive net flows in private client. Institutional had modest net outflows of $0.2 billion. Turning to Slide 9, investment management fees as adjusted of $157.6 million increased $1.5 million or 1% reflecting the 3% sequential increase in average assets under management and a modestly higher average fee rate, partially offset by two fewer days in the quarter. The average fee rate of 42 basis points increased by 0.3 basis points from 41.7 in the prior quarter. The fee rate increased for both open-end funds and retail separate accounts and on an overall basis, the fee rate has been very stable remaining in the 41 to 42 basis-point range over the past five quarters. Performance fees in the quarter of $0.2 million, compared with $0.5 million in the fourth quarter. Looking-forward and taking into account AlphaSimplex, we believe a modestly higher range of 42 to 44 basis points is reasonable for modeling purposes. Slide 10 shows the five quarter trend in employment expenses. Total employment expenses as adjusted of $98.6 million increased 12% sequentially, reflecting $11.4 million of seasonal items related to the timing of annual incentives, including incremental payroll taxes, benefits and accelerated stock-based compensation expense. Excluding the seasonal items, employment expenses declined by 1% sequentially due to lower variable incentive compensation. Employment expenses were 55.8% of revenue as adjusted, but excluding the seasonal items they were 49.3%, representing an 80 basis-point sequential improvement primarily due to lower variable incentives. Looking ahead, we anticipate employment expenses as a percentage of revenues in a range of 49% to 51%, though as always it will be highly variable based on market performance in particular, as well as profits and sales. Turning to Slide 11, other operating expenses as adjusted were $29.8 million, down $1 million or 3% from the fourth quarter. The sequential decrease was largely due to lower professional fees and seasonally lower travel and related activity and also reflected close management of all discretionary expenditures, while we continue to selectively invest in key areas to support growth of the business. Looking ahead, we anticipate other operating expenses as adjusted will be in a quarterly range of $31 million to $34 million. For modeling purposes, keep in mind that our annual Board of Directors equity grants occur in the second quarter. Slide 12 illustrates the trend in earnings. Operating income as adjusted of $47.4 million declined $8.7 million or 16% sequentially due to the seasonal employment items. Excluding those items, operating income increased 5%. The operating margin as adjusted of 26.8% compared with 31.8% in the fourth quarter. Excluding the seasonal items, the operating margin improved by 140 basis points to 33.2%. Net income as adjusted of $4.20 per diluted share, which included $1.11 of seasonal expenses, compared with $5.17 in the fourth quarter. Regarding GAAP results, net income per share of $5.21 increased from $4.77 per share in the fourth quarter and included $0.93 benefit from fair-value adjustments to affiliate non-controlling interests and $0.64 of net realized and unrealized gains on investments. Slide 13 shows the trend of our capital liquidity and select balance sheet items. Working capital was $184 million at March 31st, essentially unchanged from December 31st and we ended the quarter with net debt of $47 million, representing net leverage of 0.2 times EBITDA. The first quarter is seasonally our highest quarter of cash utilization and included the payment of annual incentives, seasonal employment expenses and the revenue participation payment of $27 million. The contingent consideration liability which also includes estimated earn-out payments will vary over-time based on changes in the underlying related revenue streams. In addition, during the first quarter we net settled 70,716 shares for $12.2 million to satisfy employee tax obligations. The AlphaSimplex acquisition in April was funded with a combination of cash on hand and $50 million of debt from our $175 million revolving credit facility, which we have had available to provide short-term financial flexibility and we expect to repay as we generate cash this year. Giving effect to the acquisition, we continue to have a strong balance sheet with more than adequate levels of working capital and modest leverage, providing meaningful financial flexibility. With that let me turn the call back over to George. George?