Thanks, Seth. On our second quarter call in early August, we set out an expected margin expansion path at that time for the rest of the year driven by four factors. Organic growth, clinical value creation, normalized prevalence and acuity patterns, and new reimbursement rates. We are ahead of our previously set expectations on three out of four of these drivers, but progress was offset by higher than expected medical costs. Let's review each in turn. First, we executed ahead of expectations on implementing new business in the quarter, launching services across eight implementations, including at least one new launch in all 50 states. Our tech and services products continue to outperform our forecasts for both top and bottom line contributions. Second, we continue to execute on our targets to lower medical expenses while increasing quality as our underlying goal. For example, by Q3, we had reduced the frequency of newly prescribed low-value regimens by over 50% versus a baseline in a recently launched market. We believe this highly differentiated model creates significant value for our clients, for our members, and for Evolent. Third, we are pleased that our differentiated model has enabled us to capture significant rate increases during what has been the most challenging year for managed care in recent history. We announced on our August call that we had aligned with partners on new rates expected to capture approximately $35 million of new revenue in 2024 beyond what we had forecasted coming into the year. All of these agreements are now in place with aggregate ‘24 impact in line with what we communicated on the August earnings call. As expected, we recognized a one-time true down in the quarter related to a narrowed scope in select markets retroactive to the beginning of the year. The final revenue impact of this reduction was approximately $20 million per quarter, modestly higher than originally anticipated, resulting in our revenue for the quarter being in the lower part of our range. As expected, we also true down our first half accrued medical expenses by the same amount, resulting in no material impact to adjusted EBITDA from the true down. Fourth, while we believe our overall clinical value creation for our partners was in line with expectations, medical costs exceeded our expectations in the performance suite. Therefore, rates that were based on data as of our August earnings call did not reflect the higher medical costs experienced in the third quarter. This is caused by the two factors Seth previewed, an acceleration in medical costs that began late in the third quarter and new data received from our partners and processed across September and into November. Let me discuss both isolating the impact of these issues for Q3 and for prior periods. On the first, recall that our third quarter and full year guidance assumed that disease prevalence and acuity remained stable at the average levels experienced during the second quarter. This was informed in part by July authorization data, which in aggregate had the lowest volume we had seen since March on an adjusted basis. As the third quarter progressed, we saw a significant spike in volumes. This was particularly acute for oncology in Medicaid, which experienced a 9% increase in seasonally adjusted authorizations per capita versus the second quarter with relatively minimal changes in membership. This contributed to an estimated $18 million increase in claims expense in Q3 on a like-for-like basis versus Q2. This amounts to about a 500 basis point step up in specialty performance suite MLR in the quarter. The second factor was revised claims files received and processed from September through the beginning of November from certain of our partners that included higher claims paid in prior periods than the files they had previously submitted. To be precise, these files included claims paid in prior months that were not previously submitted, not just normal course claims development for expenses incurred in prior periods. We are actively auditing these claims submissions to understand the changes and confirm that they appropriately match our scope of services as Seth noted. Based on our initial analysis of this data over the last several weeks, we have identified possible mismatches between what was submitted and our scope, which could have a net favorable impact on our adjusted EBITDA. At this point, we have only concluded our internal review on less than 10% of these mismatches. While the reviews are ongoing, we are taking a conservative stance, and we believe we have booked the full impact of this new data in the quarter and are incorporating it into our guidance, i.e., our Q3 results and 2024 outlook do not presume upside from this exercise. We estimate that relative to our expectations, these new claims submissions drove a $24 million increase in claims expense net of revenue adjustments for dates of service prior to Q3. Note that this impact was almost entirely from 2024 dates of service. We believe these results are fundamentally a reimbursement issue, not an underlying value creation issue. For example, in one of the markets in question, we estimate that our clinical interventions through 9/30 [ph] created a 14% reduction in spend relative to an unmanaged benchmark. This represents a doubling of the savings delivered by Evolent in the prior year. This sample analysis was across over 400 cancer patients in this market, whose treatment this year we believe was better aligned with the best and latest evidence on efficacy and toxicity. Despite this primary value creation, the underlying change in cancer prevalence in this market has increased year-over-year by 30%, with August running 50% higher than the prior year average, outpacing the rate of savings from our clinical interventions. As Seth mentioned, we are exercising our contractual rights to adjust our rates to these changes in the underlying population. We are seeking approximately $100 million beyond the rates secured this summer and beyond our normal escalators. We estimate that nearly half this amount, or $45 million, will come from purely mathematical and contractual annual rate adjustments that will take effect in January. These mathematical constructs are automatic and self-executing and do not require negotiation. However, since those contractual provisions use full year prevalence, mix, and other factors to calculate the following year's rates, they do not capture the full impact that we are now seeing in Q3. We are therefore seeking an additional $55 million in rate increases targeting a January 1, 2025 effective date to match the shifts we have seen in the expense base. While we believe strongly in our ability to drive value for our partners, currently we do not expect any of these increases to come into place until January of 2025, leading to a significant forecasted mismatch between elevated expenses and rates for the rest of 2024. As a result, we are revising our outlook for the year for adjusted EBITDA to be between $160 million and $175 million, with corresponding Q4 guidance of between $22 million and $37 million. Our updated outlook for 2024 assumes that elevated medical expenses that we saw in August and September persist for the rest of this year, but that it does not continue to accelerate. The lower end of this guidance contemplates that clinical costs continue to rise on a seasonally adjusted basis in the fourth quarter, even off of the highs of Q3. Neither case assumes we receive any incremental rate increases until January ‘25. Regarding revenue, we are updating our annual expectations to between $2.55 billion and $2.575 billion, reflecting the impact of go-live timings and the updated narrowing of scope I mentioned earlier. The corresponding outlook for Q4 is $642 million to $667 million. Switching now to the balance sheet, where we remain well capitalized with a strong liquidity profile. Cash from operations was $18.7 million in the quarter, excluding the impact of earn-out payments, year-to-date cash from operations was $67.2 million. Across the last eight quarters, we have generated $312 million in cash from operations before paying interest and earn-outs, which represents 85% of adjusted EBITDA during that time frame. As we look forward, we anticipate continued strong cash flow generation from our operations. In the hypothetical scenario Seth mentioned, where we exercise our right to exit risk in markets where we were losing money, the resulting estimate of $200 million in adjusted EBITDA would cover our current annual cash interest obligations of $20 million many times over. With that said, we observed a slowdown in collections from our health plan partners in September and October, leading us to draw on our revolving credit facility in late October. We believe this slowdown is temporary based on the turmoil in the managed care industry. And while we are not concerned from an overall collectability perspective, we want to be prepared in the event we experience longer collection cycles in the coming months, or in the event we see opportunities to accelerate profitable growth during this unique moment. To that end, we have obtained $250 million in incremental committed financing from our existing lender subject to customary conditions in the form of an increase to our revolving credit facility, a new $125 million term loan, and a $75 million delayed draw term loan. If this facility were to be fully drawn, we estimate our total annual cash interest expense would increase to about $43 million. Still, we believe a small fraction of our overall annual cash generating power. This commitment is available to us through January. In addition to providing a buffer for potential slower cash receipts, this committed financing would also provide a proactive path for our 2025 convertible note maturity. Finally, as a part of this commitment, we expect to amend our existing credit agreements and related documents to permit the board to launch a share buyback program if we were to choose to do so, expanding the levers we have to drive shareholder value. Let me hand the call back to Seth to talk about the new business announced in the quarter and some market demand commentary.