Thank you, Rajeev, and welcome everyone. Q2 revenue was $63.3 million, above guidance, and adjusted EBITDA was $12 million, which includes an unexpected bad debt expense related to the bankruptcy of a top 10 buyer. Excluding this one-time expense, adjusted EBITDA would have been $17.7 million or 28% margin. In Q2, we prioritized the initiatives that strengthen the foundation of our business and position us well for long-term growth. We focused on operational excellence, customer relationships and innovation. We delivered incremental efficiencies from our owned and operated infrastructure and generated $10.8 million in free cash flow. We increased activity from SPO deals to over 40%, an all-time high. And, importantly, we launched high value product innovation, with the recent launch of Convert, a unified self-service platform for commerce media and our buyer focused Activate offering last quarter. These two new areas are expected to increase our long-term TAM by over $75 billion. Turning to the key revenue drivers in Q2, monetized impressions increased year-over-year while CPMs were lower. Reflective of the cross currents we are seeing in the macro environment by region and ad vertical, trends varied by format and channel. CTV continued to be a high-growth channel for us, driven by an increase in monetized impressions, partially offset by lower CPMs. Overall, CTV revenues increased over 30% year-over-year. Online video monetized impressions, across mobile and desktop, also increased, but experienced double-digit percentage CPM declines that pushed revenues down more than 10% year-over-year. Total omnichannel video revenues, which span across mobile, desktop, and CTV devices, declined 4% year-over-year and represented approximately 31% of total revenues. Display monetized impressions, across mobile and desktop, grew year-over-year while CPMs declined. Overall, display revenues were down minus 1% year-over-year as compared to minus 8% in Q1. Display revenues represented 69% of total revenues. In terms of ad verticals, while the top 10 grew 8% year-over-year, we saw a divergence of trends across categories. Four of the top 10 verticals increased double digit percentages year-over-year led by the Food & Drink vertical at over 30% growth. Five of the top 10 grew in the low to mid-single-digit percentages, while Shopping was the only top 10 vertical that declined year-over-year in the high-single-digits. On a regional basis, EMEA grew over 16% year-over-year, while the Americas declined by 1%. In terms of the monthly progression through the quarter, April revenues were flat and May revenues increased year-over- year. June revenues declined driven by softness in both online video and display CPMs. Turning to our operational strength, our Q2 financial results benefited from increased efficiencies and optimization of our owned and operated infrastructure. Overall impression processing capacity increased over 30% year-over-year, largely driven by software optimizations with minimal incremental CapEx. On a trailing twelve-month basis our cost of revenue per million impressions processed declined by 12%. The combined impact of our operational efficiency and business model leverage enabled us to achieve outstanding marginal profitability. Approximately 85% of every incremental revenue dollar above Q1's level, converted to gross profit in Q2. This capability is a key differentiator for us and has enabled us to achieve consistent profitability for a decade while building the foundation for future growth. In terms of operating expenses, Q2 GAAP OpEx was $45.4 million. Included in this total were incremental costs of $2.1 million related to our acquisition of Martin in September last year and $5.7 million in bad debt expense related to the bankruptcy of one of our buyers. Excluding these incremental costs, operating expenses increased less than 10% year- over-year. In Q2, GAAP net loss was $5.7 million, or minus $0.11 per diluted share. Excluding the impact of the bad debt expense, we would have delivered GAAP net loss of $49,000. Q2 non-GAAP net income, which adjusts for unrealized gain or loss on equity investments, stock-based compensation expense, acquisition-related and other expenses, and related adjustments for income taxes, was $1.3 million, or $0.02 per diluted share. Excluding the $5.7 million of bad debt expense, non-GAAP net income would have been $7 million. Turning to cash, we are in excellent financial shape and ended the quarter with $170.9 million in cash and marketable securities and no debt. We generated $15.8 million in cash from operations and $10.8 million in free cash flow. Our consistent cash generation is an important driver for our long-term growth and market share gains as it allows us to consistently invest in innovation. As of July 31, we have repurchased 1.8 million shares of our Class A common stock for $27.5 million in cash. We have $47.5 million remaining in the repurchase program. Now turning to our outlook. In light of recent trends, we remain cautious about the next couple of quarters. On the one hand, many advertisers, particularly brand-centric, remain cautious about the economic environment and are tightly managing ad budgets in case of a potential recession. On the other hand, current ad supply growth is outpacing ad budget growth. In June and July, we saw the impact of these factors with both softening of ad spending by vertical and pressure on CPMs. To illustrate this point, for the combined April and May periods, ad spending for our top 10 ad verticals grew 9% versus the same period last year. For the June/July period, the top ten ad verticals slowed to 1% year-over-year. A notable change in trajectory was observed in four consumer centric verticals: Shopping, Technology, Personal Finance and Arts & Entertainment. In aggregate, they were down 7% for the June/July period versus the same period last year. Video CPMs took a 10% step down in July versus June. Display CPMs showed a similar pattern of softening in July. Our outlook for August and September assumes that CPMs remain relatively flat to what we saw in July. Given the progression of CPMs over the last 12 months, on a year-over-year basis, this translates to roughly 20% lower CPMs for video and 10% lower CPMs for display in Q3. On the positive side, monetized impressions continued to grow in July sequentially versus June and versus last year. July online video impressions increased over 20% year-over-year. CTV impressions increased in the single-digit percentage range as they were lapping approximately 300% volume growth in the prior July. And display impressions increased 5% over last year. We anticipate these volume trends will continue through Q3. As a reminder, we are proactively taking steps to diversify our revenue mix by adding more higher-growth formats and channels. For the first half of 2023, we increased the number of high-value omnichannel video impressions monetized by 15% over the first half of 2022, while monetized display impressions increased 2% over the same time period. While these efforts will provide long-term, durable growth and margin expansion, they will not outweigh the soft CPMs that we project for Q3. We anticipate that Q3 revenue will be in the range of $58 million to $61 million. The format and channel projections underpinning this guidance are: display revenues will decline in the single digital percentage range; online video revenues will decline by approximately 10% year-over-year, similar to what we saw in Q2; and CTV revenue, which grew over 150% last year, will decline on a year-over-year basis. Also influencing our near-term outlook is the recent bankruptcy of one of our top 10 DSP buyers on June 30th. We estimate that it will take several months for this ad spend to be fully redistributed to other buyers already integrated on our platform. This transition will reduce our second half revenue by several million dollars. In the long run, we do not expect this development to have a material effect on our business. Assuming macro conditions do not worsen, we estimate that Q4 revenue will grow sequentially from Q3, consistent with the lower end of typical seasonal trends. In terms of potential upsides, if CPMs declined at roughly half the rate we are currently assuming, we estimate it would add $3 million of incremental revenue per quarter. On the cost side, we have been taking actions to drive incremental productivity across every aspect of our business and you can see the positive results in our Q2 financials. For example, we successfully added approximately 20% incremental processing capacity by the end of Q2, without a corresponding step-up in CapEx. This accomplishment means that we expect our second half GAAP cost of revenue on an absolute dollar basis will exhibit very limited quarter-to-quarter sequential cost increases despite impressions continuing to grow. As a byproduct of our leveraged business model, in the near term, we expect any uptick in CPMs beyond our current expectations to result in strong marginal profitability. We anticipate that over the long run these efficiencies will have a compounding effect and will drive higher gross margins for us. As previously noted, our Q2 GAAP OpEx includes a one-time incremental bad debt expense of $5.7 million. Adjusting out this cost, we anticipate that Q3 OpEx will be roughly flat compared to Q2. We anticipate that Q4 OpEx will increase sequentially from Q3 in the low-single-digit percentage range as we add incremental innovation investments supporting our Activate and Convert products. Given our revenue guidance and our optimized cost structure, we expect Q3 adjusted EBITDA will be between $13 and $15 million or approximately 23% margin at the mid-point. Turning to CapEx, our capacity optimizations and operational efforts to drive higher value impressions onto our platform have been going well. We expect a further reduction in full-year CapEx and now project CapEx at $10 million to $13 million. This would be a reduction of more than 70% compared to our 2022 CapEx of $36 million. We expect these initiatives and others in the pipeline will enable us to incrementally increase free cash flow over time. To summarize, over many years, we have built a resilient and durable business that is one of the world's leading, scaled, global SSPs. In Q2, we continued making progress on the three operating priorities that I outlined last quarter. Number one, generate significant free cash flow. Through the first half of 2023, we have delivered more than 40% of last year's level. It should be noted that with the recent DSP bankruptcy, we expect Q3 free cash flow will be below normal trends but we anticipate a return to robust free cash flow in Q4. Number two, position ourselves for revenue acceleration when ad spend and CPMs stabilize. Despite near term pressure in CPMs, we remain confident in our long-term growth opportunity, as evidenced by our ability to continue increasing monetized impressions. We are building deeper relationships with publishers and ad buyers, expanding our TAM by bringing innovative new products like Activate and Convert to market, and scaling higher value formats like CTV and online video. We anticipate that our new product offerings will add to our revenue growth in the second half of 2024. And, number three, establish a new level of efficiency in our cost structure that will lead to margin expansion in 2024 and beyond. With that, I'll now turn the call over to Stacie for Q&A.