Thank you, Mark, and good morning, everyone. 2025 was a challenging year for ACA carriers as market morbidity stepped up across the industry. We experienced these industry-wide trends with higher-than-expected claims and lower-than-expected risk adjustment offset leading to a net loss of $443 million in 2025. Over the course of 2025, we took appropriate steps to position Oscar to deliver strong earnings in 2026 including disciplined pricing and cost management actions. I'll begin with a brief overview of fourth quarter results, review of our full year performance and then discuss our outlook for 2026. Starting with the fourth quarter. We ended the year with approximately 2 million members, an increase of 22% year-over-year. Membership growth was driven by solid retention, above-market growth during open enrollment and continued SEP member additions. The fourth quarter medical loss ratio was 95.4%, an increase of 730 basis points year-over-year. During the quarter, we received an updated risk adjustment report for claims through October. The report indicated that overall market morbidity remains stable from the third quarter to the fourth quarter. However, relative to our expectations, Oscar's membership skewed healthier than the broader market, which required an increase of our risk adjustment accrual of $275 million in the fourth quarter. The fourth quarter risk adjustment true-up was partially offset by $99 million of favorable in-year development and $36 million of favorable prior period development, primarily related to claims run out from the prior year. Overall utilization in the quarter was modestly above our expectations. Inpatient utilization continued to moderate while outpatient and professional increase, which we believe was associated with members accelerating care as the enhanced premium tax credits expired. Pharmacy utilization was largely in line with our expectations. Turning to the full year. Total revenue increased 28% year-over-year to $11.7 billion, driven by membership growth, partially offset by an increase in the net risk adjustment payable. The full year medical loss ratio was 87.4%, an increase of 570 basis points year-over-year. Risk adjustment was a headwind throughout 2025, driven by higher market morbidity which we primarily attribute to the full year impact of members entering the ACA market as a result of Medicaid redeterminations as well as program integrity efforts. Risk transfer as a percentage of direct premiums was approximately 18.5% for 2025, representing a 390 basis point increase year-over-year. Switching to administrative costs. We continue to drive improvements in our SG&A expense ratio. The full year SG&A expense ratio improved by approximately 160 basis points year-over-year to 17.5%. The year-over-year improvement was driven by fixed cost leverage, lower exchange fee rates and disciplined cost management, including an increased impact from technology and AI initiatives. The loss from operations for the full year was approximately $396 million, a change of $454 million year-over-year, driven primarily by the higher risk adjustment payable. The adjusted EBITDA loss for the full year was approximately $280 million, a change of $479 million year-over-year. Turning to 2026. We have been preparing for the expiration of the enhanced premium tax credits for some time and took deliberate actions in 2025 to position the business for profitable growth and improved financial performance. We introduced innovative and affordable plan designs aligned with member needs, optimized our distribution strategy and took a measured approach to geographic expansion. Our disciplined pricing assumed and expected market contraction at the high end of our previously communicated 20% to 30% range driven by the expiration of enhanced premium tax credits and CMS program integrity initiatives. We also refiled rates in states covering approximately 99% of our membership to reflect the higher market morbidity in 2025. Together, these actions position us to profitably drive share growth. For 2026, we expect total revenues to be in the range of $18.7 billion to $19 billion, an increase of 61% year-over-year at the midpoint, driven by another year of above-market growth during open enrollment, solid retention and rate increases. While our weighted average rate increase for 2026 was approximately 28%, the increase on a per member per month basis is lower, reflecting shifts in member age and metal mix. Our outlook also reflects elevated churn this year, driven primarily by passively enrolled members facing higher premiums following the sunset of the enhanced premium tax credit and ongoing CMS program integrity initiatives. From a member profile perspective, our average member is 38 years old, approximately 1 year younger year-over-year. As expected, we saw migration from silver plans to Bronson gold plants, reflecting plan designs intended to offer affordable options following the expiration of the enhanced premium tax credits. For 2026, we expect risk adjustment as a percentage of direct premiums to be approximately 20% based on our updated membership mix and 2025 risk adjustment experience. Turning to medical costs. We expect our medical loss ratio to be in the range of 82.4% to 83.4%, representing 450 basis points of year-over-year improvement at the midpoint. Our outlook reflects elevated market morbidity observed in 2025, an incremental increase in morbidity in 2026 and medical cost trends and utilization patterns largely consistent with our 2025 experience. We also incorporated additional third-party data to assess the risk profile of new members, which is tracking modestly better than our pricing expectations, while renewal risk scores are in line with our expectations. With respect to seasonality, we expect MLR to be lowest in the first quarter and highest in the fourth quarter as members meet their annual deductibles. On administrative expenses, we expect continued improvement in our SG&A expense ratio. We expect the SG&A expense ratio to be in the range of 15.8% to 16.3%, representing an approximately 140 basis point year-over-year improvement at the midpoint. We continue to see the benefits of scale as fixed cost leverage and variable expense efficiencies driven by technology and AI are expected to drive further improvement in our SG&A expense ratio. We expect our SG&A expense ratio to be fairly consistent in the first 3 quarters with an uptick in the fourth quarter. We expect to meaningfully improve financial performance and a return to profitability in 2026. We expect earnings from operations to be in the range of $250 million to $450 million, a significant improvement of nearly $750 million year-over-year implying an operating margin of approximately 1.9% at the midpoint. Adjusted EBITDA is expected to be approximately $115 million higher than earnings from operations. Shifting to the balance sheet. we have taken opportunistic steps to strengthen our capital position and optimize our capital structure. As a reminder, during the third quarter, we increased our capital in preparation for 2026 growth, completing a $410 million convertible notes offering due 2030, generating $360 million of net proceeds. Subsequent to that transaction, we entered into a new $475 million 3-year revolving credit facility. The transaction was well supported by a strong syndicate of top-tier banks and executed on favorable terms, further strengthening our balance sheet and providing additional flexibility as we execute on our strategic plans. We ended the year with approximately $5.5 billion of cash and investments, including $414 million at the parent. As of December 31, 2025, our insurance subsidiaries had approximately $1 billion of capital in surplus, including $315 million of excess capital. To help frame our capital position in the context of our growth outlook, I want to spend a moment on regulatory capital requirements. While individual states vary, a useful rule of thumb is that for every $1 billion of premiums, we are required to hold approximately $50 million of capital, which reflects roughly 55% quota share reinsurance ceding percentage for 2026. Overall, our capital position remains very strong. In closing, 2025 marked a shift in the individual market dynamics. Oscar has been in the ACA since its inception. And today, we are operating from a position of scale and experience. That perspective has informed the actions we've taken to position our business for profitable growth in a rational market and improved financial performance. We are well positioned to return to meaningful profitability this year. With that, I'll turn the call back over to Mark for his closing remarks..