Thank you, Nick. Good morning, everyone and thank you for joining today. Before providing an update on our quarter 3 results, I would like to echo the words of our CEO, Vlad Coric, and Pfizer's A - Nick Lagunowich, on the exciting news of Biohaven and Pfizer entering into a strategic commercial collaboration agreement for the treatment and prevention of migraine upon approval in markets outside the U.S. Some of the key financial terms of the agreement are as follows. Pfizer will pay Biohaven a total of $500 million at closing, inclusive of a $150 million in cash and $350 million in equity investment in common shares priced at approximately $173 per share, a 25 % premium to the 20-day Vivo app on November 8th 2021. Closing of the equity investment is contingent upon completion of the review under antitrust laws, including the Hart-Scott - Rodino Antitrust Improvement Act of 1976 in the U.S and is expected to close in December of 2021. In addition, Biohaven will received from Pfizer tiered double-digit royalties and reimbursement for related ex-U.S. PMS and Royalty Pharma royalties. Biohaven is also eligible to receive up to $740 million in milestone payments. In total, Biohaven is eligible to receive up to -- approximately $1.24 billion in upfront payments and future milestones. Our collaboration with Pfizer reduces Biohaven 's -U.S. investment to commercialize Rimegepant upon approval by leveraging Pfizer's vast global commercial organization. Biohaven will continue to oversee manufacturing responsibilities for ex-U.S. markets. We look forward to our collaboration with Pfizer and the ability to serve more patients who suffer from the debilitating effects of migraine. Now, let me to turn to Biohaven 's quarter 3 results. NURTEC ODT received -- achieved net sales of a $135.7 million from quarter 3, demonstrating another quarter of strong performance, increasing 46 % versus quarter 2 of this year, driven by continued sales volume and we are very pleased by the contribution that our expanded label was having under NURTEC ODT performance. Continuing down the P&L, R&D investment in the quarter on a non-GAAP basis was $68.9 million compared to $51.8 million over the prior year quarter, an increase of $17.1 million. The increase is primarily due to continued investment in our late-stage product candidates and pre -clinical research, partially offset by $10 million decrease in our R&D services obligation. SG&A and -- expense in the quarter on a non-GAAP basis was a $149.6 million compared to a $110.2 million over the prior year quarter, an increase of $39.4 million. Most of our SG&A costs continue to support commercial sales of NURTEC ODT as we invest behind our novel dual indication therapy. The increase is primarily due to increased promotional activities supporting ODT in quarter three as compared to quarter 3 2020, which was in earlier phases of launch. We reported non-GAAP adjusted net loss for the 3-months ended September 30th of a $125.1 million or $1.91 per share loss compared to a $159.5 million or $2.67 per share loss for the same period in 2021. Moving onto year-to-date September results, R&D investment for the 9 months of 2021 on a non-GAAP basis was $210.6 million compared to a $137.6 million over the prior year period, an increase of $73 million. Again, the increase is primarily due to our continued investment in our late-stage product candidates and pre -clinical research, partially offset by the aforementioned reduction in R&D service obligations. SG&A expense for the 9 months of 2021 on a non-GAAP basis was $434.2 million compared to $314.7 million over the prior year quarter, an increase of a $119.5 million. The increase is primarily due to increased promotional activity supporting NURTEC ODT during the full 9 months of commercialized sales for the treatment and prevention of migraine, as compared to the same period in 2020, where NURTEC was launched at 2020. We reported non-GAAP adjusted net loss for the 9 months ended September 30th. A $484.4 million, or $7.55 per share loss, compared to $444.2 million, or $7.62 per share loss for the same period in 2021 -- 2020, excuse me. Turning to our balance sheet, following the execution of our collaboration and subscription agreements with Pfizer, we will have access to more than $1.1 billion considering the investment that Pfizer is making. As of September 30th, 2021, we have $523.9 million in cash, cash equivalents, and marketable securities. Immediate access to $125 million from our debt facility was 63 and anticipate $147.2 million of additional capital proceeds from the Series B preferred share agreement with Royalty Pharma executed last year. With that, let me turn it over to A - Bj Jones, our Chief Commercial Officer. BJ.