Welcome everyone and thank you for joining us. It's great to join you on my first earnings conference call as President and CEO of Vertex. Our financial results for the fourth quarter came in as expected. Revenue was $194.7 million, in line with our guidance for the quarter, while adjusted EBITDA exceeded the high end of our guidance at $42.5 million. For the full year, Vertex delivered double-digit revenue growth along with solid profitability. Since this is my first time speaking to our investors and analysts, I wanted to cover a few topics. First, why I'm excited to join Vertex at this point in the company's history. Second, I'll give you a perspective from my conversations with customers, partners, and employees over the past three months. And third, my view on how we can accelerate our revenue growth. Then I'll share some exciting new business wins from the fourth quarter. Many investors have asked me what attracted me to come to Vertex. But I'll start there. First, I was drawn to Vertex's incredible blue-chip customer base, which includes over 60% of the Fortune 500. Around the world, leading enterprises trust Vertex to stay compliant with ever-changing indirect tax requirements. Our customers described to me that Vertex is trusted, reliable, flexible, and has the deepest domain expertise in the industry. Likewise, our partner ecosystem is built on strong, long-standing relationships with the key technology and implementation partners that serve this customer base. These partners consistently recognize Vertex as the leading provider of indirect tax solutions for the enterprise. At the same time, both groups want to see us move faster and drive more innovation. And meeting that mandate will be job one for us in the near term. Second, Vertex has a long-standing track record of revenue growth, profitability, and positive cash flow across economic cycles, as well as clear growth vectors for the future. Our core expansion is steady, and our land and expand motion is proven. We have a new high-growth business in compliance and e-invoicing, which exceeded our expectations in its first year and has meaningful catalysts on the horizon. Third, I believe Vertex has an incredible opportunity to transform our business and help our customers transform theirs through artificial intelligence. This aligns well with my career experience, particularly my most recent role. There, I spent considerable time building partnerships with and, in several cases, investing in companies driving AI innovation. And I did that while working closely with many of my Microsoft teammates who are developing their own AI technologies. Turning to our near-term priorities. While our full-year growth was healthy and respectable, in 2025, we saw lower entitlement growth, a moderation of new upsell and cross-sell revenue, and slightly higher customer attrition. This impacted our retention metrics, which John will discuss shortly. In looking at customer attrition, business and market factors such as M&A and bankruptcy were the single largest driver of 2025 attrition. And this is largely uncontrollable by Vertex. It's also important to note that attrition continues to be concentrated in smaller accounts. The average annual revenue per customer for lost accounts in 2025 was under $50,000, far below our overall average revenue of $138,000 per customer. Finally, I'll note that competitive losses are a modest component of attrition. And Vertex continues to win far more ARR from competition than we lose to our competition. That said, we are taking several actions to mitigate controllable attrition by expanding customer success coverage to a broader cohort of customers and leveraging AI tools to better serve our customers. Our AI Copilot in the product will help customers address more questions without needing to call us for help. We have also implemented analytics to predict potential customer attrition so that we can engage them more proactively, including personal phone calls from me to address their concerns. I'm also confident that our new product offerings, including e-invoicing and smart categorization, will help us accelerate cross-sell and upsell revenue in 2026. And we are already seeing measurable traction with both. On a positive note, revenue from new logos remained healthy and was up 20% in 2025. This included both competitive takeaways and customers who previously used homegrown solutions and switched to Vertex. It is essential that we continue to seize this opportunity. Now let's talk more about AI. Vertex is well-positioned to help tax departments improve their workflows with artificial intelligence. Indirect tax compliance is rule-dense, data-heavy, and highly repetitive. It's the type of work that lends itself well to AI transformation. And we are starting from a fortified position as Vertex software is embedded in the workflows of our customers. In addition, our customers place a premium on tax accuracy, something they have trusted Vertex with for years. And I'll add that our revenue-based pricing model insulates us from the concerns investors have around SaaS companies with seat-based licensing models. As I shared earlier, I see significant and unique opportunity for us to capitalize on these trends. And that's one of the reasons I joined Vertex. In 2025, Vertex made significant investments in AI products, tools, and functionality. This included the launch of our smart categorization offering, which is squarely in the wheelhouse of AI adoption. It reduces the manual work tax departments undertake every day to ensure their product SKUs are mapped to the correct tax rates across all jurisdictions. During the early adoption phase, we secured several marquee six-figure wins in the retail industry. To address this growing opportunity, we are broadening functionality in smart categorization to cover our full retail customer base. We will expand smart categorization to additional industries where the offering has applicability. In addition, in 2025, we expanded the capabilities of Vertex CoPilot. CoPilot, in turn, helps us understand the tasks and features customers are interacting with Copilot about, providing us with insights in the areas that are causing friction in the use of our solutions. This can help us enhance our products, develop new AI features, and inform future product development. Finally, we continue to leverage our partnership with Kintsugi. On last quarter's call, we highlighted Kintsugi powered by Vertex, which enables SMBs to automate key compliance functions while providing real-time dashboards for jurisdictional liability and exposure tracking. Then in December, Kintsugi and Vertex partnered with cpa.com to launch an AI-driven solution to help accounting firms deliver automated, accurate, and scalable sales tax compliance for their clients. This then helps our partners in the accounting industry unlock new advisory revenue opportunities. While all this is a good start, we can do much more with AI. I see a large opportunity on this front. It's my personal goal to transform Vertex into an AI-first business both in how we work internally and through the new capabilities we deliver to our customers. I will have more to share on this transformation in the near future. With that, let's review some examples of how companies are depending on Vertex to stay in compliance with indirect tax. First, wins within our installed base. It's not uncommon for enterprise customers to use Vertex in one area of the business and a competitor in another. In many cases, over time, these customers will reevaluate their tax software footprint and standardize on Vertex. As an example, a customer in the metals and mining industry dramatically expanded its relationship with Vertex in the fourth quarter. This customer had used Vertex's returns filing managed service for years, even though it was using a competitor for tax calculation. However, during an SAP S/4HANA transformation, the company made the decision to standardize on Vertex. As a result, this is now a fulsome mid-six-figure relationship, including sales and use tax calculation as well as exemption certificate manager SAP Plus tools, SAP Accelerator, and other Vertex offerings. In the fourth quarter, we also won in-store point-of-sale tax calculation for a global quick-service food and beverage retailer. This long-standing Vertex customer historically used us for tax calculation for its mobile app and gift card businesses, but a homegrown solution at the point of sale. They switched to Vertex during a redesign of their point-of-sale system, leading to high six figures of new revenue. In the Oracle ecosystem, we increased our business with a relatively new customer in the computer products manufacturing industry. Earlier this year, the customer spun out from its parent company and selected Vertex for use tax calculation. In the fourth quarter, they completed the transition and added sales tax calculation, leading to six figures of new annual revenue for Vertex. Turning to new logos, we landed one of our largest new logos ever in Europe with a leading healthcare provider. Revenue for this new customer will be well into the seven figures. This deal was catalyzed by a global SAP S/4HANA transformation led by our partners and DMA. It included value-added tax calculation across the customer's global footprint, as well as sales and use tax in the United States. The customer will also be using our end-to-end compliance offering to file returns in 30 countries around the globe. Also in conjunction with an SAP S/4HANA transformation, a major North American power utility selected Vertex as its first-ever indirect tax provider. This enterprise customer with revenue of nearly $10 billion was previously using manual solutions for use tax calculation. In addition to use tax calculation, this mid-six-figure deal, which is referred to us by our partner Accenture, also included SAP Plus tools, Vertex Consulting, and other ancillary products and services. This deal validates the greenfield opportunity for Vertex with large companies that are still using homegrown solutions for indirect tax. In the Oracle ecosystem, a software provider in the payment space selected Vertex to displace an entrenched competitor. We were differentiated by our ability to support the customer's massive scale and volume of transactions as well as our referenceability across the Oracle ecosystem. This led to low six figures of new revenue for Vertex. Now turning to e-invoicing. In our first full year in the business, we've seen strong traction with both existing customers and new logos. Accelerating demand around upcoming mandates, especially Belgium, which launched its e-invoicing mandate in January, and significant product differentiation for our end-to-end offering, which includes e-invoicing, as well as VAT calculation and compliance in a single unified platform. We continue to believe our platform is unique in the marketplace and gives us a competitive advantage. Now let me give you some color on the types of e-invoicing deals we won during the fourth quarter. Wins with existing customers included a global payments company that selected Vertex for e-invoicing mandates in Belgium, Poland, and France. A consumer products company that selected Vertex for mandates in Germany, Belgium, and Poland. And a consumer electronics company also selected Vertex for mandates in Italy, Belgium, Poland, and Denmark. Note that all of these examples are long-standing scale customers. And the e-invoicing cross-sell increased our ARR with these customers on average by over 20%. This should give investors a sense of the upsell opportunity that e-invoicing represents within the installed base. New e-invoicing logos include a 14-country win with a German building products company. E-invoicing and value-added calculation for Belgium, France, and Germany with a North American energy products company. And a deal for Belgium, Germany, France, and the UK, and Ireland for the North American healthcare products company. All these new logos were in the mid to high five-figure range, and while this is lower than our overall average revenue per customer, these initial engagements gave us a launching pad for our proven land and expand sales motion. Not just with additional e-invoicing countries, but for the full suite of Vertex tax compliance solutions. So to summarize, Vertex had a solid fourth quarter. 2025 revealed some challenges, but I am confident that we have a cohesive plan to restore accelerating growth in the business. Our AI opportunity is in focus, and our first offering, smart categorization, is making a real difference for enterprise customers while driving revenue. And we have a growing opportunity in global compliance as e-invoicing mandates continue to proliferate around the globe. All in, I believe I'm joining Vertex at an extremely opportune time. With that, I'll turn the call over to John to discuss the financials in detail. John?