Thank you, Katherine, and good afternoon. I would like to first take you through the growth in revenues, both on a year-over-year and sequential basis, cover the expansion of gross margins from continuing operations and then address what we are doing to continually reduce spend and cash burn. I'll wrap up with 2023 guidance. During the second quarter of 2023, total revenues were $48.7 million. Pro forma revenues from continuing operations was $45.2 million compared to $40.1 million in the second quarter of 2022 and compared to $40.7 million in the first quarter of 2023. Those increases were driven entirely by growth in whole exome sequencing revenue, which grew 36% year-over-year and grew 28% sequentially compared to the first quarter. Our team resulted nearly 12,000 exome results in the quarter. That is by far an all-time high in terms of the number of lives we are impacting and represents exome volume growth of 56% year-over-year and sequential volume growth of 36% compared to the first quarter. Pro forma adjusted gross margins from continuing operations in the second quarter of 2023 was 37%, expanding from 34% in the first quarter. As a reminder, we exited 2022 with 41% pro forma adjusted gross margins and have reaffirmed our guide to expand beyond that for the full year of 2023. Let me bring you through the ways we will do that. First, growth in exome. Adjusted gross margin for whole exome sequencing remained at a portfolio-leading 60%. Whole exome sequencing represented 22% of all tests delivered in the second quarter of 2023, up from 17% in the preceding quarter. Notably, we saw momentum with each month of the second quarter, with June topping out at 26% of all test results being whole exome. In the first half of this year, we've successfully built up volumes on certain non-exome tests that represent near-term candidates to convert to whole exome. Examples include CMA and FMR1, which made up approximately 16% and 10% of all test results in the second quarter. Although these carry lower average reimbursement and low to negative gross margins, we previously discussed that the strength in non-exome mix is meant to be transitory this year. And we're pleased to see momentum in the proportionate exome mix this quarter. As our strategy to weigh volume mix towards whole exome and genome takes hold, we expect to see continued natural accretion in our blended gross margins. Second, increased payment rates. Within the exome and genome test portfolio, 82% of aggregate volume runs through commercial insurance, managed care and Medicaid programs. Approximately 70% of all commercial payers and nearly half of all state Medicaid programs have some level of positive coverage for exome and/or genome, all subject to various medical necessity criteria. Today, we are currently being reimbursed on less than half of all claims. Our revenue cycle improvement efforts are mobilized and focused on improving -- targeting towards well reimbursed regions and the use of automation and artificial intelligence and process design to ensure we are capturing upfront medical necessity information in real time prior to claim submission. This will help drive ordering behavior and adherence with individual payer policy and increase the likelihood of payment. We also have identified a number of process improvements necessary to navigate disparate prior authorization hurdles in order to avoid unnecessary denials. Improving claim payment rates are within our control and offer a substantial opportunity ahead. The remaining 18% of all volume is institutional bill, which tends to be highly predictable with near 100% collectability. As utilization of whole exome and genome increases on the back of emerging guidelines and clinical support, in particular, with respect to our rapid product in the NICU and PICU, where there is a large unmet need, we expect over the long term the proportion of this relatively high-priced institutional payer mix to increase. Overall, we're pleased with where pricing has leveled out on this portion of the portfolio following some pricing resets we discussed last quarter. Third, reducing cost per test. In the second quarter, our team implemented a number of projects aimed at further improving both turnaround times and COGS throughout our lab operations. These include, but are not limited to, wet lab savings through the validation and launch of our first next-generation Alumina X+ sequencer in June with another machine expected to be validated in the third quarter. Dry lab savings through consolidation of our library preparation processes to Twist Biosciences, which is on track to launch this month. And we expect to implement further automation and AI across a number of end-to-end production steps in the fourth quarter and beyond. Fourth, portfolio rationalization. We are closely monitoring the economic and clinical performance of our legacy panel test menu through periodic review. We've begun retiring low-volume, low-margin tests and have a phase planned over the coming quarters and years to continue this work as guidelines, policies and the marketplace evolves ultimately until we arrive at our goal of an exome and genome backbone for all inherited disease tests. Turning to expenses. Adjusted operating expenses has declined 5% in the second quarter compared to the first quarter of 2023, are down 22% from the fourth quarter of 2022 and have declined a transformative $31 million or 34% from the comparable 2022 period. In April 2023, following the completion of substantially all Sema4 wind-down activities, we reduced our combined workforce a further 5% primarily across G&A support functions. This is equivalent to roughly $10 million in cost reductions, the effect of which will not translate into operating expense declines until the third quarter of 2023. We will continue to drive operating expense leverage as we separate from discontinued operations, leave substantial legacy tech debt behind in the coming quarters and continue our work to gain efficiency across all aspects of the business. At the bottom line, total company adjusted net loss for the second quarter of 2023 inclusive of all activity, including the discontinued legacy Sema4 diagnostic operations, was $42 million compared to an adjusted net loss of $49 million in the first quarter of 2023 and $66 million in the same period of 2022, improvements of 14% and 37%, respectively. We've decreased our cash burn by 10% sequentially and 36% year-over-year to $53 million for the second quarter of 2023. Our total cash and cash equivalents and restricted cash were $157.6 million as of June 30, 2023, which included proceeds from the final tranche of $7 million from the registered direct offering that was part of the $150 million capital raise in January 2023. Now turning to guidance. We reaffirm our previously issued 2023 revenue and gross margin guidance of $205 million to $220 million in revenue and our expectation to expand gross margins in 2023 beyond the 41% adjusted pro forma gross margin reported in the fourth quarter of 2022. We are updating previously issued cash use guidance and now expect to use $70 million to $85 million of net cash in the remaining 6 months of 2023, inclusive of servicing obligations of the discontinued Sema4 business. By the end of 2023, we expect to have the quarterly cash burn from continuing operations from today's levels. We are reaffirming our long-term guidance to turn to profitability in 2025. To conclude, as of June 30, 2023, we had 25,761,147 shares of common stock outstanding. And as a reminder, we effected a reverse split of our stock at a 1:33 ratio. Accordingly, all common stock share numbers, per share amounts and additional [indiscernible] capital for all periods presented today and filed in our 10-Q have been retroactively adjusted, where applicable, to reflect the reverse stock split. And with that, I will turn the call over to Katherine.