Thanks, Chris, and good afternoon, everyone. Thank you for joining us today. As you've seen from our press release, we again posted strong growth in the third quarter. Revenue grew approximately 18% compared with Q3 of last year. And when excluding political spend compared to last year's Q3, our revenue grew by 22%. CTV remains our largest and fastest-growing channel, continuing to grow at a faster rate than our overall business. The shift to biddable CTV is accelerating, and we expect decision CTV will become the default buying model in the years ahead. The advantages of decision buying compared to traditional programmatic guaranteed or insertion order models are so significant in terms of flexibility, control and performance that the choice for advertisers is becoming increasingly obvious. Retail media continues to scale rapidly as well, and we are seeing strong adoption across verticals as more shopper marketing budgets flow into programmatic and more retailers turn to us as their trusted partners. To begin, let's take a step back and provide some context about the state of our industry. So far, 2025 has been a year of innovation and change for our industry and our company. The change in landscape has created amazing upgrades to our business and our industry. Compared to last year, our TAM has grown significantly, including expansion from CTV and AI chatbots and growth in premium content. The supply chain is much more efficient, and our products have been enhanced with AI across the board. The Trade Desk is adding more value than ever before. But the changes of 2025 are much more interesting and significant when you consider how they will change the trajectory and opportunity for the open Internet for the next several years. A reminder, the open Internet is the portion of the Internet where price discovery and competition exists. On the open Internet, every transaction is arm's length. Walled gardens are built around owned and operated inventory instead of third-party inventory. Price discovery comes when the buyer and seller are different entities. Of course, premium content is largely created by those who focus on content excellence. So the open Internet is where the most loved content and the most premium content lived. Because the open Internet has continued to win more and more consumer time in places like premium TV, movies, music consumption in places like Spotify, live sports and journalism, we continue to see a growing desire for the open Internet to get the first dollar of any media plan and also to get the lion's share of any media plan. Because advertising is about helping consumers feel something about a product, a service or an opportunity, using great video and audio ads are essential to most brand building, customer loyalty efforts and all performance efforts, including performance TV. I contend that supply has always been greater than demand in digital advertising. And because it is so much easier to create more supply than it is to create a bigger marketing budget, the supply growth continues. This imbalance has grown steadily. And as a result, the market continues to strengthen for buyers. It's a buyer's market. All of this ripens the opportunity for -- the Trade Desk and the open Internet. In order for the open Internet to grow faster than closed ecosystems that are mostly filled with user-generated content and without price discovery, the efficiency of competitive supply chains and the benefits of competition in time must work for the market and not against it. This shift has happened in 2025. To this end, AI is accelerating the improved effectiveness of the open Internet. Of course, every significant AI innovation and AI product needs quality data. The most valuable data to an advertiser is their own conversion and customer data. We will win long term because we built a business where buyers can own their future, which requires them to own, protect and use their own data. AI is fast-tracking progress for companies that are eager to put their data to work and can leverage automation intelligently. Big brands are increasingly and rightfully leery of walled gardens as the AI-fueled future materializes. Advertiser and agency data is more valuable in this AI world than ever. It is also less defensible in the hands of our big tech competitors who are written with conflict of interest and have insatiable appetites to own advertisers' data. AI is accelerating the path to the open Internet having vastly superior price discovery and fungibility. A world with better price discovery and better open Internet supply chains for the quality content will decrease the value of user-generated content destinations and other similar apps and sites that are full of ads and unsafe content. Premium content and deliberate data-driven targeted buying is the only way for the biggest brands and advertisers to remain competitive. Nearly every big tech player in advertising, Amazon, Apple, Google, Facebook is primarily focused on expanding and monetizing their owned and operated inventory and content. Google is clearly focused on search, their AI chatbot Gemini and YouTube. Amazon's primary advertising efforts are focused on growing sponsored listings and then secondarily on Prime Video. Both are putting Amazon owned and operated inventory first. Facebook continues to focus on monetizing Instagram and Facebook as destinations and TikTok the same. None of these companies are focused on monetizing the open Internet. This was helpfully made public throughout the antitrust trial of the Department of Justice versus Google when they revealed numbers that Google normally does not report on. Exhibits and industry experts estimated that in 2019, the open Internet and owned and operated inventory on YouTube were equally split in share of wallet on DV360. However, between 2019 and today, roughly all of the incremental dollars and growth from DV360 has gone to YouTube. YouTube spend increased by about 800%, while Google's buying of the open Internet stayed essentially flat for the same period of time. During that time, the Trade Desk seems to have surpassed Google in the amount bought on the open Internet, again, according to others. The industry is evolving at a rapid pace. However, no one is driving that change with more force or focus than the Trade Desk. With that backdrop, I want to focus today on 3 key areas of progress. First, let's walk through the foundational improvements and upgrades we've made across the company over the last year. Since March, we've welcomed a new COO, a new CFO and a new CRO, who we just announced last week and began this week. Our COO, Vivek Kundra, has already driven operational progress and continues to improve our operations. Under his leadership, we've brought greater structure, discipline and clarity to how we operate, streamlining our go-to-market organization, improving coordination across regions and teams and instilling stronger operating cadences that enhance accountability and performance. While we've always been data-driven in running campaigns and servicing our customers, we're building a more data-driven culture that emphasizes measurable outcomes for our employees and consistent execution. These changes are helping us scale more predictably and efficiently while fostering a culture of ownership and operational excellence that will serve us well in the years ahead. Many of our largest clients are among the world's leading advertisers, and they operate at global scale, often through multiple agencies. To manage this complexity, we have put new systems in place so we can execute account plans with thoroughness and rigor. This rigor helps every part of our business from our engineers who can identify key innovation opportunities as they ship product every week, all the way to our commercial services team who can help our clients take advantage of key opportunities as they emerge. Let me give you one example. One of the most influential data analytics companies in the world recently ran a competitive test between -- the Trade Desk and a major walled garden, which offered to run campaigns with 0 fees. But because we're objective, data-driven and focused on measurable outcomes, we won the opportunity, securing about $20 million more in incremental spend through the end of 2025. Last year, we spoke about investing more resources to pursue closer relationships with the biggest brands. We've seen incredible results from this effort. JBPs continue to grow significantly faster than non-JBP accounts. Importantly, we've grown our relationships with top brands while simultaneously creating more growth and stickiness for the agencies. I'm confident that with Anders Mortensen coming aboard as our new Chief Revenue Officer, we will continue to improve effectiveness of our go-to-market organization. I'm thrilled that he's joined the team. In fact, this week, he's become the latest executive to join our ranks from the likes of Google, Amazon and Meta in recent quarters across all parts of our business. Anders will help us scale our sales effectiveness. At Google, he was 1 of 2 executives who ran their ad business from a sales perspective. Anders oversaw their mid-market ad business covering more than 5,000 advertisers and their agencies and successfully grew that business at a pace that significantly exceeded broad market growth. Anders will help us continue to grow within our established client base, and he will also help us expand to a broader range of advertisers and agencies around the world. The second area that I'd like to highlight is the innovation we're delivering in our platform. This year has really been the year of innovation for us. We've launched some of the most market-changing products that we ever have. And as you know, we have a track record of changing this industry with new product innovations. Prior to this year, over and over again, we've done things that people have told us we couldn't pull off. As a few examples, we weren't even one of the first 10 companies to get funding as a DSP, but we did it anyway. We lost [indiscernible], which proved to be a better system of targeting that was more expressive and enabled so many businesses to be built on our platform. That system also laid the foundation for an AI-powered platform. Also, nearly a decade ago, we were the first to move the third-party data market usage to a percentage of spend. We created the largest cookie pool for the open Internet when our unified ID efforts were successful. Then Google changed the game with their war on cookies, and then we launched UID2. Now UID2 is the primary identity currency of ads for the open Internet around the world. It's ubiquitous. This is similar for things like global placement ID and transaction ID. These are metadata standards for the open Internet that have become standards because of our innovations and insistence. We've also enabled an entire ecosystem of innovation. Without our APIs as log level reporting, there are entire categories of companies that wouldn't be viable. None of the walled gardens enable businesses like this. In 2018, we launched Koa. Our early focus on AI and machine learning has positioned us to upgrade our platform as the rise of AI tools has made upgrading our platform easier than any other DSP. At TTD, we are very focused, and we have a very clear North Star. This is a race to create the best-performing ads and the best competitive supply chain digital advertising has ever seen and thereby win the trust and investment of the biggest advertisers in the world. Today, nearly all of our clients have tried Kokai with nearly 85% using Kokai as their default experience. When we build a new iteration of our platform, our primary goal is to deliver more value to our customers by increasing their performance. By this standard, Kokai is the best upgrade we have ever made to our product relative to all previous versions and certainly relative to Solimar. Campaigns that have switched to Kokai are seeing impressive results. Since its launch, Kokai has delivered on average 26% better cost per acquisition, 58% better cost per unique reach and a 94% better click-through rate compared to Solimar. These are incredible performance improvements on top of what was already considered the most performant DSP in the world. Kokai has a number of features in it that are game changers for our clients and for the open Internet. We've used the industry's most advanced AI to enhance our system with an architecture we call distributed AI. We break down every function and create separate AI models for each of them from valuing impressions to managing identity to choosing supply paths to predicting a price required to clear and to forecast the performance and reach of a campaign before a single dollar is even spent. This effort to distribute allows us to parallelize all AI efforts and enables checks and balances between these disparate functions. It cannot be overstated how much AI has changed and will change our business and the open Internet. This year, we've launched and grown several products that are solely focused on substantially upgrading supply chains so that buyers get more for their money. OpenPath is an integration between TTD and a direct source of inventory. OpenPath plugs into auctions we trust. It is a collection of clean pipes for connections that are directly into inventory. We have grown OpenPath by many hundreds of percentage points this year, which means our clients are getting clear views of exactly what they're buying and publishers have a clearer sense of what advertisers are willing to pay when they describe their inventory in a transparent and accurate way. OpenAds is an auction that we develop and sometimes host as an option for publishers. We then bid into a fair auction and even enable other buyers or DSPs to do the same thing, too. The market needs a healthy auction and some sell-side players have continually weakened the integrity of the auction. So we're developing an open source option that raises that bar. We just launched it, and we're already working to integrate with more than 20 of the biggest publishers on the web. We expect this to dramatically improve the supply chains of mobile in-app ads and browser-based ads, which, of course, can use the help in an AI scraping world. Pubdesk is improving the supply chain by publishing data for the sell side. Resellers, sellers and publishers can log into the platform and see what we paid the supply chain, what signals we value and adjust their sites and inventory to get more. This is largely fueled by the Sincera team and data that we acquired earlier in the year. Deal Desk is a better way to manage one-to-one deals. Not only does it facilitate the buy, but using AI, it predicts how a deal will perform relative to the open market. This product enables them to do deals, but also gives them the unprecedented data and tools to avoid bad deals. It is important to note that this product will be foundational to a healthy forward market that can replace the outdated upfronts. So far, deals on Deal Desk are performing about 35% better than those running on Solimar, which is more similar to the way they run everywhere else in the programmatic ecosystem. Digital advertising supply far exceeds demand. It always has, and frankly, it always will. That dynamic makes digital advertising a true buyer's market where advertisers have unprecedented choice. At the same time, because Google has historically made it almost impossible for most SSPs to do true yield management, many tech players on the sell side of advertising that sit between us and content owners have been incentivized to duplicate their ad inventory, obfuscate it or sometimes even misrepresent it. As advertisers increasingly gravitate to the premium advertising opportunities that are consistent with their brand, they want better tools to be able to distinguish between premium ad environments and ensure that their ads are not being placed on recipe sites with 20 different ads popping up for competing users' attention. I don't have anything against recipe sites, but I found recently that this example reminds people of how much room there is to actually creating better ad experiences. Key to this is the auction. A clean, credible option ensures that advertisers can understand exactly what they are buying and value it appropriately. Many of the largest premium publishers run their own auctions, such as Disney with its [indiscernible] platform. OpenPath connects directly into many of these premium publisher auctions and companies like Disney do this because they want to ensure that their premium inventory can be correctly assessed and valued. A healthy auction is not an inherently sell-side or buy-side consideration. It sits in between as the referee between the buy side and the sell side. And in order to have a healthy marketplace, both sides have to trust the auction. In order to establish that trust, we started with the open source version of the prebid auction. Then we innovated and made it better to ensure it contains some key elements such as transaction ID and a Sincera signature to better reduce duplication and detect obfuscation by sellers. We will open source key elements of OpenAds, and we will expose its mechanics for review. Just like recent innovations such as UID2 or OpenPath or Ventura, our intent here is to incentivize a more transparent, competitive marketplace for all. In Q4, we announced 3 additional product features and upgrades that will be some of the most significant contributors to our growth for years to come. The first is a system upgrade and the other 2 are product launches. We have overhauled our data marketplace. We have reviewed the mechanics, incentives and market dynamics over our third-party marketplace and made significant upgrades. The result is a more competitive AI-driven marketplace with more data, more data segments and more reward for those who bring quality to the market. Second, we're introducing trading modes. This is a bit like driving modes in a car where the user can decide how they would like to engage with the system. Would they prefer to have control where they have more decisions and a greater burden of work? Or would they prefer to simply optimize the performance and lean on the machine. In both cases, we're introducing Agentic AI as a copilot to ensure optimal campaign performance, but its role and engagement will differ based on the trading modes. This new feature will accelerate the adoption of Agentic AI in our platform. And third, in Q4, we introduced a new product called Audience Unlimited. This enables our users to use third-party data for a single fee. And that single fee will make it easier for them to layer on much more data and improve the efficacy of their campaigns. The third area that I'd like to cover is the momentum we're seeing in our business as we close out 2025 and prepare for 2026. Since our last earnings call, I've spent much of the time on the road. I hosted 11 trader town halls with programmatic traders at our top agencies and brands in various cities around the world. I've met with dozens of major client CMOs and many of the world's leading publishers. What is clear across all of these communities is the confidence that everyone has in the potential of the open Internet. We maintain that the independent and objective DSPs will have the majority of open Internet spend at end state. Today, all of our biggest competitors are conflicted. So it is ours for the taking. There are so many places that we are seeing progress. Here are just a few of them. Our research shows that the average consumer now spends 2/3 of their digital time on the open Internet, even though most budgets today still go through Facebook, Google and TikTok. This imbalance will correct over time. Outside the U.S., our business is growing significantly faster than the United States. Given that 60% of the TAM is outside of the U.S., this movement is in the right direction of capturing the TAM. Audio has become one of the fastest-growing channels as consumers spend an average of 3 hours a day listening to their favorite music and podcasts. Bayer recently added Spotify to their omnichannel campaigns on Kokai and saw a 15% growth in their incremental reach. Adoption of Kokai is driving significant performance improvements for our clients. Specsavers in the U.K. saw a 43% reduction in the cost of securing customer appointments using Kokai while also cutting the conversion time by almost 50%. Danone saw conversion rates go up by 1/3 for their Actimel yogurt product, leveraging the retail data marketplace and omnichannel strengths of Kokai. Spend under JVPs are growing significantly faster. OpenPath has grown by many multiples in this year. Publishers like Hearst are seeing a 4x improvement in ad fill rates and 23% revenue increase when integrating OpenPath. We are seeing enthusiastic interest in OpenAds. We just launched OpenAds, and we already have 20 publishers committed to integrating. On the supply side, SSPs such as PubMatic are integrating with Deal Desk using the new price discovery provisioning API that helps sellers better understand and identify how sellers can increase the quality of their inventory. The injection of AI into our supply path optimization is finding better paths to publishers with double-digit percentages of efficiency. To bring this to a close, I just want to reiterate that we are building our business for the long term. The upgrades we've made to our company over the past year put us in the best possible position to execute on the opportunities that are right in front of us today and continue to scale and lead the open Internet in the years ahead. I want to share a few of the principles that we've had for a very long time that continue to be critical to us continuing to lead the open Internet. First, we will always only represent the buy side of digital advertising. Everything we do that interacts with the supply side, such as OpenPath and OpenAds is intended to drive better signal and a more transparent marketplace for our advertiser and agency clients. But we are hopeful that they also drive efficiencies that benefit the entire ecosystem. Second, the digital advertising market will inevitably bend towards efficiency. Every market does over time. It's just a question of how fast we get there. There are still some in our industry who will say things like, why shouldn't I be allowed to duplicate or hide aspects of what I'm selling. Over time, though, the survivors and the thrivers will be those who figure out how to win in a fair fight. We will always be advocating and advancing a fair fight wherever we can. And lastly, the open Internet offers compelling value in contrast to walled gardens. The open Internet is where most consumers spend most of their time. It is where they engage with the Internet's most premium content. Advertising on the open Internet is not the same as advertising in a walled garden. On the open Internet, an advertiser gets to select ad impressions across all opportunities with objectivity and efficacy. It's not possible in a walled garden or using a walled garden DSP. For most marketers, these are 2 very different value propositions. The work we do in any of these areas is not easy, let alone all of them, but that's our mission. We know that transparency, objectivity and innovation drive performance for us. But more than that, we know they are essential for our clients, and we're just getting started. I've never been more excited about the road ahead. And with that, I'll hand it over to Alex to walk you through the financials.